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Scrubmaster B75 R (7175)
Operating Manual
Issue: 09.2015
Book number: 88-00-3046
Cleaning Technology · Municipal Technology
2 00-7175-00-00.fm
Introduction
Introduction
Foreword
Dear Customer,
We are certain that the excellent qualities of the machine will justify the faith
you have shown in us by your purchase.
To guarantee safe working with the machine, please read the Safety Notes
chapter before putting it into service.
Your own safety, as well as the safety of others, depends essentially on your
ability to control the vehicle. Please read this original operating manual
before you use the vehicle for the first time, act accordingly and keep these
instructions for future reference or subsequent users. The operating manual
contains all important information for operation, maintenance and care. We
have provided the places in this operating manual concerning your safety with
a danger pictogram. Your authorised Hako dealer is available at all times to
answer further questions about the vehicle or the operating manual.
We would expressly advise you that no legal claims may be asserted based
on the contents of these operating manual. In the case of necessary repair
work, please make sure that only original spare parts are used. Spare parts
must be original spare parts to guarantee safety. We reserve the right to make
changes in the interests of further technical development.
Hako GmbH
23843 Bad Oldesloe, Germany
Hamburger Str. 209-239
Phone +49 4531 806-0
Issue:
Index Book number Revision number Valid as from:
0 88-00-3046 3273-33 09.2015
00-7175-00-00.fm 3
Introduction
Intended use
Scrubmaster B75 R is a scrubber-drier for the wet cleaning of hard indoor floor
surfaces. This machine is intended for commercial use, e.g. in shopping cen-
tres, swimming pools, shops, airports, schools and hotels. Any use extending
beyond this is not intended use. The manufacturer is not liable for any damage
resulting from this and the user alone bears the risk. Intended use also includes
compliance with the operating, maintenance and servicing conditions specified
by the manufacturer.
The Scrubmaster B75 R may be used, maintained and repaired only by
persons who are familiar with this work and instructed about the dangers.
The relevant accident prevention regulations as well as the other generally
recognised safety engineering and occupational medical rules must be com-
plied with.
The machine corresponds by virtue of its design and construction as well as in
the version distributed by us to the usual health and safety requirements of the
EC Directives (see Declaration of Conformity). This declaration loses its validity
in the event of a modification to the machine not authorised by us. The manu-
facturer is not deemed liable for any damage resulting from unauthorised mod-
ifications to the machine.
Notes on warranty
The terms defined in the purchase agreement apply. Claims for compensation
in relation to damage are excluded from the terms of the warranty when the
damage is the result of the failure to observe rules concerning servicing and
maintenance. Maintenance work must be carried out by an authorised Hako
service workshop and confirmed in the Maintenance Report, which serves as
a warranty logbook.
The following are excluded from the terms of warranty: wear and tear through
overuse, defective fuses, improper handling and use and unauthorised modifi-
cations. Claims under the terms of the warranty are also annulled when dam-
age occurs to the machine resulting from the use of parts or accessories not
explicitly approved of by us or from failure to observe maintenance rules.
4 00-7175-00-00.fm
Introduction
Acceptance of the machine
Inspect the machine immediately on delivery for signs of transport damage.
You will be compensated for transport damage provided you immediately have
the damage confirmed by the transport company and send in the damage
report together with the consignment note to us.
Machine data
Your machine is described clearly by the following data. Please always quote
these data in correspondence or when making a telephone query to your
authorised Hako dealer or our company.
Machine type
Manufacturing no.
Start-up on:
Your nearest authorised Hako dealer:
Address:
Telephone:
88-00-3046-00IVZ.fm 5
Table of contents
Introduction...................................................................... 2
1 Safety instructions .......................................................... 8
1.1 Marking of warning and danger symbols ......................... 8
1.2 General safety instructions .............................................. 9
1.3 Operating safety instructions ........................................... 9
1.4 Maintenance instructions ............................................... 11
1.5 Information about special risks ...................................... 12
1.6 Environmental protection instructions and disposal ...... 14
1.7 Labels on the machine .................................................. 15
2 Operation........................................................................ 18
2.1 Overviews ...................................................................... 18
2.1.1 Front view ...................................................................... 19
2.1.2 Rear view ....................................................................... 21
2.1.3 Control panel ................................................................. 22
2.1.4 Display panel ................................................................. 23
2.2 Controls and display elements ...................................... 25
2.2.1 Control panel ................................................................. 25
2.2.2 Controls at the machine ................................................. 29
2.3 General principle of operation ....................................... 31
2.3.1 Solution tank .................................................................. 31
2.3.2 Brush head .................................................................... 31
2.3.3 Squeegee ...................................................................... 32
2.3.4 Waste water tank ........................................................... 32
2.3.5 Drain hose for waste water ............................................ 32
3 Putting into service ....................................................... 33
3.1 Instruction ...................................................................... 33
3.2 Before putting into service ............................................. 33
3.3 Checklist – before machine start-up .............................. 33
3.3.1 Installing the mains cable .............................................. 34
3.3.2 Adjusting the driver's seat .............................................. 34
3.4 Cleaning ........................................................................ 35
3.4.1 Turning on the machine ................................................. 35
3.4.2 Useful cleaning tips ....................................................... 36
3.4.3 Turning off the machine ................................................. 36
3.4.4 Checklist – after cleaning .............................................. 37
3.5 Loading and transporting ............................................... 38
3.6 Service code tables ....................................................... 39
6 88-00-3046-00IVZ.fm
Table of contents
4 Technical data................................................................ 41
5 Maintenance and Servicing .......................................... 44
5.1 Maintenance certificate .................................................. 45
5.2 Maintenance plan .......................................................... 46
5.3 Battery system ............................................................... 49
5.3.1 Type of battery ............................................................... 49
5.3.2 Battery management system (BMS) .............................. 50
5.3.3 Checking the charging state .......................................... 50
5.3.4 Charging the batteries (7175.1x/.2x) ............................. 51
5.3.5 Checking the charging process (7175.1x/.2x) ............... 52
5.3.6 Information on quick-charging technology
(only 7175.30) ................................................................ 53
5.3.7 Table – charging times for quick-charging technology
(only 7175.30) ................................................................ 53
5.3.8 Charging the battery (only 7175.30) .............................. 54
5.3.9 Replacing batteries (all variants) ................................... 55
5.3.10 Maintaining drive batteries ............................................. 55
5.3.11 Disposing of batteries .................................................... 55
5.4 Solution tank .................................................................. 56
5.4.1 Filling the solution tank .................................................. 56
5.4.2 Emptying the solution tank ............................................. 57
5.4.3 Cleaning the solution tank ............................................. 58
5.4.4 Cleaning the fresh water filter ........................................ 59
5.5 Waste water tank ........................................................... 60
5.5.1 Emptying the waste water tank ...................................... 60
5.5.2 Cleaning the waste water tank ....................................... 61
5.5.3 Cleaning the suction filter .............................................. 62
5.5.4 Checking the gasket at the drain hose .......................... 62
5.5.5 Checking the gasket in the tank cap .............................. 62
5.6 Brush head .................................................................... 63
5.6.1 Cleaning the brushes ..................................................... 63
5.6.2 Replacing the brushes ................................................... 64
5.6.3 Decoupling the brushes ................................................. 64
5.6.4 Coupling the brushes ..................................................... 65
5.6.5 Replacing the deflecting roller ....................................... 65
5.6.6 Replacing the sealing strip of the brush head ................ 65
5.7 Squeegee ...................................................................... 66
5.7.1 Cleaning the squeegee .................................................. 66
5.7.2 Replacing the sealing strips ........................................... 67
5.7.3 Adjusting the sealing strips ............................................ 68
88-00-3046-00IVZ.fm 7
Table of contents
5.8 Options .......................................................................... 70
5.8.1 On-board chemical metering system ............................. 71
5.8.2 Working spotlight ........................................................... 72
5.8.3 Warning device forwards gear ....................................... 72
5.8.4 Coarse dirt sieve of waste water tank ............................ 72
5.8.5 Wiper and squeegee 760 .............................................. 73
5.8.6 Tray ............................................................................... 73
5.8.7 Automatic filling unit ....................................................... 74
5.8.8 Fleet-Recorder Standard ............................................... 75
EC Declaration of Conformity...................................... 76
8 01-7175-00-00.fm
Safety instructions
1 Safety instructions
1.1 Warning and danger symbols
Important tasks concerning the safety of the operator and machine are named
as follows in this operating manual and emphasised by symbols.
Danger
Indication of a direct danger with high risk, in which death or severe
physical injury can occur if it is not avoided.
Warning
Indication of a possible danger with average risk, in which death or
severe physical injury can occur if it is not avoided.
Caution
Indication of a danger with low risk, in which light to medium severe
physical injury or material damage can occur if it is not avoided.
Attention
Indication of a danger with low risk, in which light to medium severe
physical injury or material damage can occur if it is not avoided.
Note
Indication of information that facilitates more effective and economi-
cal use of the machine.
Environmental danger
Environmental danger due to the use of substances from which a
health and environmental risk proceeds.
01-7175-00-00.fm 9
Safety instructions
1.2 General safety instructions
Apart from the instructions in this operating manual, the general safety and
accident prevention regulations of the legislation must be taken into
account.
Before the machine is put into service, please carefully read the operating
manual you receive as well as further separate instructions for additional
implements or attachments and observe them in all aspects of your work.
The machine may be used, maintained and repaired only by persons who
have been instructed by Hako experts.
The machine is not intended for use by persons (including children) with
reduced physical, sensory or mental capabilities or by persons lacking the
required experience and knowledge.
The operating manual should always be available at the machine's place of
use and should therefore be stored with the machine.
Please hand over these documents to the new owner/operator on sale or
rental of the device. Have the hand-over confirmed!
The labels attached to the machine provide important information for safe
operation. Renew labels that are no longer legible or present.
With AntiBac machine variants, the plastic inner surface of the fresh water
and waste water tanks contains silver ions in nanoparticle form.
Spare parts must be original spare parts to guarantee safety.
1.3 Operating safety instructions
Before putting into service
Before initially starting up the machine, charge the used battery fully and
appropriately with commissioning charge. Please observe the operating
manual of the charger and the operating manual of the battery manufac-
turer. Hako assumes no liability for battery damage resulting from insuffi-
cient commissioning charge.
Check the machine for operating safety before every start-up! Eliminate
faults immediately.
Before starting work, the operator must familiarise himself with all the
equipment, controls and actuating elements as well as with their function! It
is too late to do this during operation!
Note
Before starting up the machine, read the following safety instructions
and act accordingly. Machine operating errors can be avoided and
trouble-free operation can be guaranteed only with precise factual
knowledge.
10 01-7175-00-00.fm
Safety instructions
During operation
Sturdy and slip-proof shoes must be worn when working with the machine.
Only those surfaces approved by the contractor or its authorised represent-
ative for use of the machine may be driven on.
Never use the machine at places where objects can fall down.
When working with the machine, pay special attention to third persons,
especially children.
When driving over thresholds, raise the brush head.
Only use cleaning agents suitable for automatic machines (foam retarded)
and observe the application, disposal and warning instructions provided by
the cleaning agent manufacturer.
The machine is not suitable for removing liquids, dusts or materials that are
dangerous to health, combustible or explosive. It is also prohibited to collect
burning objects, e. g. glowing cigarettes. The collection of wood dust, e. g.
beech and oak dust, is also prohibited – health hazard!
For reasons of safety, the driver's seat is equipped with a seat contact
switch. The machine can only be started when the driver is sitting on the
driver's seat. The function of the seat contact switch must not be bypassed.
The machine must not be used in potentially explosive atmospheres.
It is not permitted to transport other people or heavy objects.
During transportation, raise the squeegee and the brush head. Adjust your
way of driving to local conditions.
Drive slowly on wet surfaces, particularly in bends, due to the risk of
skidding.
The machine may be used only on level surfaces with a maximum slope of
2%.
Warning! Never use the machine on sloping surfaces.
Manipulating the switches and protective devices is forbidden.
After operation
Always remove the key when leaving the machine to prevent unauthorised
use.
After use, park the machine in a dry, indoor location with the brush head
and squeegee raised.
01-7175-00-00.fm 11
Safety instructions
1.4 Maintenance instructions
Daily and weekly maintenance work must be done in accordance with the
maintenance plan by the operating staff. In all other maintenance work,
please contact your nearest Hako service centre.
The maintenance work and maintenance intervals specified in the
operating manual must be complied with.
Use suitable tools for the cleaning and maintenance work.
Have the machine checked for safe condition by an expert in accordance
with the accident prevention regulations at appropriate intervals (we
recommend at least once yearly).
Spare parts must at least comply with the technical requirements specified
by the manufacturer. This is guaranteed by original spare parts.
Turn the machine off for cleaning and maintaining the machine as well as
before replacing parts.
To prevent unauthorised use, remove the key.
Cleaning the machine with a high-pressure cleaner or steam jet is not
allowed.
Application of aggressive and corrosive cleaning agents is not allowed.
After cleaning, let the machine air dry, e.g. over the weekend.
Only put the machine into service when all the protective devices are
attached and in protection position.
12 01-7175-00-00.fm
Safety instructions
1.5 Information about special risks
Electrical system
If the electrical system is faulty, always turn off the machine and eliminate
the fault.
Work on the electrical system must be done only in accordance with
electrical engineering standards by a specialist trained for this work.
Regularly inspect/check the electrical system. Defects such as loose
connections, loose nuts of electrified bolts, electrical components or
damaged cables must be eliminated immediately.
Only use original fuses with the specified current. If stronger fuses are
used, the electrical system can be destroyed and there can be fires.
Batteries
Observe the operating manuals and safety instructions provided by the
battery manufacturer.
Never connect or disconnect batteries when the machine is turned on.
Make sure the batteries are never fully discharged; recharge them as
quickly as possible.
Only instructed maintenance personnel must handle and replace batteries.
Only batteries approved by Hako may be used at the intended position.
Danger! Make sure that the insulation of the battery cables is not damaged.
The battery cables should not rub against anything. If the insulation is
defective, no longer use the machine and have the battery cables replaced
by the Hako customer service immediately.
Caution! Always make sure that the batteries are clean and dry to avoid
creeping currents and corrosion damage. Protect the batteries, in
particular, against conductive contamination, e. g. metal dust.
Risk of short circuits and spark formation! Never place tools or other electri-
cally conductive objects on the battery!
Do not remove insulating caps and covers, if necessary re-install them after
carrying out work on the battery cables.
Caution! Explosive gases may develop when charging the batteries.
Avoid smoking, fire or naked light in the vicinity of batteries. Ensure suffi-
cient ventilation when charging the batteries.
For further safety instructions, see Hako supplementary sheet 88-60-2556
– information for drive batteries.
01-7175-00-00.fm 13
Safety instructions
Power connection and mains plug
Danger!
Only connect the machine to an electrical connection installed by an
electrician in accordance with IEC 60364-1.
We recommend connection to a fused socket with a residual current
circuit breaker (max. 30 mA).
We recommend use of splash water protected sockets according to
DIN VDE 0620-1.
Make sure the socket is dry!
Only touch the mains plug and the mains cable with dry hands.
Never insert the mains plug into the socket when the floor is wet or damp.
Never dip the mains cable or mains plug in water or other liquids or clean
it under running water.
Damp mains plugs or mains plugs that have become wet must no longer
be used. Water can enter the mains plug. Only qualified electricians must
carry out recommissioning.
Check the mains cable regularly for damage. If damage is detected, the
machine must no longer be used. Have a qualified electrician replace the
mains cable.
Make sure that no water or liquid can come into contact with live parts. If
water has still entered parts, immediately disconnect the mains plug and
have the machine checked by the authorised Hako service.
14 01-7175-00-00.fm
Safety instructions
1.6 Environmental protection instructions and disposal
If the end of use of the machine or of its components is reached and this is
handed over for scrapping, the components must be correctly disposed of.
Further information about disposal is available through the competent local
authorities and the authorised Hako dealers.
Observe the applicable laws and local regulations when disposing of dirt,
waste water and cleaning agents, also see the German Water Resources
Law (WHG).
Used batteries with the recycling symbol contain reusable commodities. In
accordance with the symbol showing the crossed-out garbage bin, these
batteries must not be disposed of in the domestic waste. Return and
recycling have to be arranged with the authorised Hako dealer as required
in § 6 and § 8 of the German battery law (BattG)!
Do not dispose of products with this symbol in domestic waste.
Disposal takes place through local collecting points or the
manufacturer.
Recycle used materials with this symbol according to their
labelling and do not dispose of them in domestic waste.
01-7175-00-00.fm 15
Safety instructions
1.7 Labels on the machine
The following safety and instruction labels are affixed to the machine in a
clearly visible and legible manner.
Attention
Renew missing or illegible labels immediately!
A
A
B
C
D
D
E
Fig. 1:
1
2
3
F
C
E
F
B
16 01-7175-00-00.fm
Safety instructions
Label – Logo Fig. 1-A
The Hako logo is located at the front on the steering column and at the rear on
the hopper.
Label – Type plate Fig. 1-B
The type plate is located on the left hand side of the chassis in front of the rear
wheel.
Labels
- Read and observe the operating manual Fig. 1-C1
- Maximum permissible slope 2 % Fig. 1-C2
- Never clean the machine with a high-pressure cleaner Fig. 1-C3
The label is located on the left hand side next to the driver's seat.
G
H
I
Fig. 2:
J
G
I
J
A
H
01-7175-00-00.fm 17
Safety instructions
Label – 24 V Fig. 1-D
The label is located on the left hand side of the battery compartment.
Label – Maintenance-free batteries Fig. 1-E
The label is located on the left hand side of the battery compartment.
Label – Explosive gases Fig. 1-F
The label is located on the right hand side of the battery compartment.
Label – Maintenance parts (yellow dot) Fig. 2-G
The yellow dot is located on the cover of the fresh water filter.
Label – Drain waste water Fig. 2-H
The label is located on the drain hose.
Label – Drain fresh water Fig. 2-I
The label is located on the cover of the maintenance opening.
Label – Keep off! Fig. 2-J
The label is located on the plate of the brush head.
18 02-7175-00-00.fm
Operation
2 Operation
2.1 Overviews
The description in chapter 2 contains information on the function and handling
of the individual controls on the vehicle. The controls always have the same
item number in all chapters.
Fig. 3:
321 4
8
7
5
6
13 12 11 910
14
15
16
02-7175-00-00.fm 19
Operation
2.1.1 Front view
Item Designation
1
Steering wheel
2
Mains cable on-board charger
3
Driver's seat
4
Cover with vacuum system
5
Filling opening solution tank
6
Level indicator solution tank
7
Solution tank
8
Foot lever brush decoupler
9
Brush head
10
On-board chemical metering system (option)
11
Parking brake
12
Operating brake
13
Travel drive
14
Working spotlights (option)
15
Steering column
16
Warning device forwards gear (option)
20 02-7175-00-00.fm
Operation
Fig. 4:
23
22
21
25 242627
28
3032 31
19
17
18
20
29
02-7175-00-00.fm 21
Operation
2.1.2 Rear view
Item Designation
17
Suction filter
18
Waste water tank
19
Coarse dirt sieve (option)
20
Maintenance opening solution tank
21
Adjusting lever fresh water metering
22
Accelerator pedal
23
Wiper (option)
24
Fresh water filter
25
Squeegee
26
Drain hose waste water
27
Manual suction tool, including holder (option)
28
Suction hose squeegee
29
Tray (option)
30
Automatic filling unit (option)
31
Battery
32
Seat console
22 02-7175-00-00.fm
Operation
2.1.3 Control panel
Item Designation
33
Display panel
34
Button – chemical metering system (option)
35
Button – squeegee / manual suction tool (option)
36
Button – brush head
37
Button – brush head and squeegee
38
Button – speed reduction forwards gear
39
Driving direction selector switch
40
Key switch
41
Button – signal horn
42
Button – warning device forwards gear (option)
43
Button – working spotlights (option)
44
Button – brush decoupling (only 7175.1x)
45
Release button – Fleet-Recorder Standard (option)
44
35
33
37
36
34
Fig. 5:
43
38
41
42
3940
45
02-7175-00-00.fm 23
Operation
2.1.4 Display panel
Item Designation Meaning
46
Fresh water supply The symbol is displayed when the fresh water
supply is switched on and the brush head is
lowered.
47
Number field Display panel for:
-Operating hours meter
-Service code
-Release indicator for Fleet-Recorder option
-Counter for brush decoupling
48
Speed reduction The symbol is displayed when the machine is
driving at reduced speed.
49
Operating brake/
Parking brake
The warning symbol appears if the operating
brake/parking brake is actuated.
50
Seat contact The warning symbol flashes if the driver gets
up from the driver's seat during operation.
Main functions, e.g. scrubbing, vacuuming
and driving, are no longer possible.
Fig. 6:
55
56
57
515046 48 4947
5254 53
24 02-7175-00-00.fm
Operation
51
Indicator – battery
management system
(BMS) and charging
process
If the machine is ready for use, the current
charging state of the batteries is displayed.
When the battery is charged, the charge con-
trol indicator appears in the display panel
(7175.1x/.2x).
52
Service indicator The symbol is displayed in case of a system
fault. A warning signal is additionally output
and a service code displayed in the number
field, see section 3.6.
53
Brush head The symbol is displayed when the brush head
is lowered.
54
Suction turbine drive The symbol is displayed when the suction tur-
bine drive is switched on. After switching off
the suction function, the suction turbine con-
tinues to run for 15 seconds as standard. The
symbol flashes during this time.
55
Acoustic warning
signal (option)
The symbol is displayed when the acoustic
warning signal is switched on.
56
Warning lamp (option) The symbol is displayed when the optical
warning signal is switched on.
57
Chemical metering
(option)
The symbol is displayed when chemical
metering is switched on.
02-7175-00-00.fm 25
Operation
2.2 Controls and display elements
2.2.1 Control panel
The individual functions of the buttons on the control panel are described
below. The respective activated functions are visible as corresponding
symbols in the display panel.
Key switch Fig. 5-40
The electrical system is switched on and off with the key switch.
Position 0: The electrical system is switched off. The key can be pulled out.
Position 1: The electrical system is switched on.
The software version is displayed for approx. 1 second in the number field
Fig. 6-47, possibly followed by the last service code for approx.
3 seconds. The operating hours meter is then displayed.
The current charging state of the batteries is displayed in the BMS display
panel Fig. 6-51.
Driving direction selector switch Fig. 5-39
The driving direction is selected with the driving direction selector switch.
Only select a driving direction when the machine is at standstill.
Gear lever forwards: Forwards gear
Gear lever 0: Neutral position
Gear lever backwards: Reverse gear
Note
A warning signal is output when in reverse gear. The maximum
speed when reversing is half of the maximum speed when driving
forwards.
26 02-7175-00-00.fm
Operation
Speed reduction button Fig. 5-38
The maximum speed when driving forwards is reduced by approx. 50 % with
this button.
Push the button: Speed reduction ON
Push the button again: Speed reduction OFF
Signal horn button Fig. 5-41
The signal horn is switched on and off with this button.
Push the button: Signal horn ON
Release the button: Signal horn OFF
Squeegee button Fig. 5-35
The squeegee is lowered/raised and the suction turbine switched on and off
with this button.
Push the button: The squeegee is lowered and the suction turbine switched
on.
Push the button again: The squeegee is raised. The symbol for the suction
turbine drive begins to flash in the display panel. After a delay time of
approx. 15 seconds, the suction turbine is switched off.
Note
The suction turbine drive works independently of the driving direction.
The squeegee is raised automatically when reversing.
Note
When working with the manual suction tool option, the squeegee
button is used to switch this option on and off. In this case, the
squeegee is not lowered. The parking brake must be actuated!
02-7175-00-00.fm 27
Operation
Brush head button Fig. 5-36
The brush head is lowered and raised with this button.
Push the button: The brush head is lowered. When actuating the
accelerator pedal, the brush drive and the water supply are switched on.
Push the button again: The brush drive and the water supply are switched
off. The brush head is raised.
Brush head and squeegee button Fig. 5-37 (Hakomatic button)
The brush and suction turbine drive are switched on and off simultaneously
with this button.
Push the button: The brush head and the squeegee are lowered. The brush
drive, water supply and suction turbine are switched on when the accel-
erator pedal is actuated.
Push the button again: The brush head is raised. The brush drive and the
water supply are switched off. The squeegee continues to run for approx.
15 seconds to absorb residual water.
Chemical metering button (option) Fig. 5-34
Chemical metering is switched on and off with this button.
Push the button: Chemical metering ON
Push the button again: Chemical metering OFF
Note
If the accelerator pedal is not actuated, the brush drive and the water
supply are switched off.
28 02-7175-00-00.fm
Operation
Warning device button (option) Fig. 5-42
Two functions can be selected with this button:
Push the button once: Warning lamp flashes
Push the button twice: Warning lamp flashes. A warning signal is
additionally output when driving forwards.
Push the button again: Warning device OFF
Working spotlights button (option) Fig. 5-43
The working spotlights can be switched on and off with this button.
Push the button: Working spotlights ON
Push the button again: Working spotlights OFF
Brush decoupling button Fig. 5-44 (only 7175.1x)
The brush can be decoupled with this button.
Push the button for approx. 5 seconds until the four consecutively flashing
symbols in the display panel have gone out.
After decoupling, the upper and lower symbol row flash alternately. The
machine is not ready for use. To complete brush decoupling, acknowledge the
process with the key switch OFF/ON.
02-7175-00-00.fm 29
Operation
2.2.2 Controls at the machine
Mains connection Fig. 7-2
The mains connection supplies voltage to the charger.
Filling opening fresh water Fig. 7-5
The solution tank is filled via a hinged filling opening.
Optionally, the solution tank can be filled via the automatic filling unit,
see section 5.8.7.
Foot lever brush decoupler Fig. 7-8
By actuating the brush decoupler, the rotating brushes can be disassembled
quickly and without tools.
Locking lever parking brake Fig. 7-11
The parking brake stops the machine from rolling away accidentally.
Engage the parking brake:
1. Push down the operating brake Fig. 7-12 fully.
2. Engage the locking lever of the parking brake with the rear part of the foot.
Release the parking brake:
Actuate the operating brake pedal.
Operating brake pedal Fig. 7-12
When the accelerator pedal is released (forwards or reverse) the machine
comes to a stop due to the braking effect of the travel drive. If this braking
effect is not sufficient, the operating brake can be applied in addition.
Fig. 7:
5
2
12
8
11
30 02-7175-00-00.fm
Operation
Maintenance opening Fig. 8-20
The maintenance opening is used to drain the fresh water and clean the
solution tank.
Adjusting lever fresh water metering Fig. 8-21
Metering of the fresh water to the brush head is set using the adjusting lever.
The water quantity can be set between 0.8 l/min and 3.3 l/min.
Accelerator pedal Fig. 8-22
The accelerator pedal is used to drive forwards or reverse and continuously
adjust the speed at the same time.
If the accelerator pedal is released, it automatically returns to the zero position
and the machine stops.
Fresh water filter Fig. 8-24
When supplying water from the solution tank to the brush head, the fresh
water is cleaned by the filter insert.
Drain hose waste water Fig. 8-26
The absorbed waste water is drained with the drain hose of the waste water
tank.
Note
Set the driving direction in advance with the driving direction selector
switch Fig. 5-39.
Fig. 8:
24
21
20
26
22
02-7175-00-00.fm 31
Operation
2.3 General principle of operation
Scrubmaster B75 R is a ride-on scrubber-drier for wet cleaning hard floor
surfaces.
In cleaning mode, the cleaning solution is supplied from the solution tank to
the rotating brushes in the brush head. Fresh water metering takes place
manually via an adjusting lever. When the machine is moving forwards, the
used cleaning agent is absorbed by the squeegee and conveyed into the
waste water tank.
2.3.1 Solution tank
The solution tank Fig. 9-5 is filled via a hinged opening. The solution tank has
a capacity of 75 litres. The level can be determined via a transparent hose
Fig. 9-6. Fresh water metering can be set via an adjusting lever Fig. 8-21.
2.3.2 Brush head
The brushes in the brush head Fig. 9-9 are driven by an electric motor. The
brush head is lowered with the brush head button Fig. 5-36. When actuating
the accelerator pedal, the brush motors and the water supply are switched on.
The floor is cleaned by the rotating brushes and the supply of cleaning solu-
tion. For maintenance purposes, the brushes can be decoupled via the foot
lever brush decoupler Fig. 7-8.
Fig. 9:
5
6
9
25
8
32 02-7175-00-00.fm
Operation
2.3.3 Squeegee
The movable, hinged squeegee Fig. 9-25 is lowered and switched on with the
squeegee button Fig. 5-35. The squeegee withdraws the waste water from
the floor using a sealing strip. The suction turbine vacuums the waste water
from the floor. If the machine passes through narrow sections, e. g. checkout
areas, the squeegee can be removed by loosening the star-shaped handle
and hooked into the cover Fig. 10-A of the waste water tank.
2.3.4 Waste water tank
The vacuumed waste water is conveyed via a suction hose Fig. 10-28 from
the squeegee into the waste water tank Fig. 10-18. A manual suction tool is
optionally available for cleaning and water absorption in difficult-to-reach
positions.
2.3.5 Drain hose for waste water
The waste water is drained from the waste water tank with the drain hose
Fig. 10-26.
03-7175-00-00.fm 33
Putting into service
3 Putting into service
3.1 Instruction
Instruction is required before the first start-up. The first-time instruction of the
machine may be provided only by a specialist of your authorised Hako dealer.
This person will be notified immediately after delivery of the machine from the
factory and will contact you to make an instruction appointment.
3.2 Before putting into service
3.3 Checklist – before machine start-up
Attention
Before initially starting up the machine, charge the used batteries
fully and appropriately with commissioning charge. Please
observe the operating manual of the charger and the operating
manual of the battery manufacturer. Hako assumes no liability for
battery damage resulting from insufficient commissioning charge.
Before the machine is initially put into service, install the country-
specific Hako mains cable.
Check the machine for operating safety before every start-up!
Eliminate faults immediately.
Before starting work, the operator must familiarize himself with all
equipment, operating and actuating elements as well as with their
function.
No. Description
1 Checking the parking area for signs of leaks. Cables and tanks must not
show any sign of leaks or damage
2 Installing the mains cable
3 Mounting the brushes and squeegee, see chapter Maintenance
4 Adjusting the driver's seat, if necessary, see section 3.3.2
5 Checking the battery charge and recharge it as required,
see chapter Maintenance
6 Emptying the waste water tank and clean it as required,
see chapter Maintenance
7 Filling the solution tank (see chapter Maintenance) and add cleaning
agent according to the manufacturer's specifications
34 03-7175-00-00.fm
Putting into service
3.3.1 Installing the mains cable
1. Remove the cover Fig. 11-A.
2. Route the cable of the mains plug Fig. 11-B through the opening in the
bracket Fig. 11-C. Ensure that the side of the strain relief without a latch
faces the front towards the opening.
3. Press the strain relief into the bracket until all latches have engaged.
4. Plug the mains plug Fig. 11-D straight and firmly into the holder.
5. Reinstall the cover using the available screws.
3.3.2 Adjusting the driver's seat
The driver's seat can be adjusted to three positions.
1. Open the seat console.
2. Loosen the screws and remove the washers. Hold the seat while doing this.
3. Set the seat to the desired position.
4. Tighten the screws and washers at the respective position.
Attention
For reasons of safety, the driver's seat is equipped with a seat
contact switch. The function of the seat contact switch must not be
bypassed.
Fig. 11:
A
C
B
D
Fig. 12:
03-7175-00-00.fm 35
Putting into service
3.4 Cleaning
3.4.1 Turning on the machine
1. Disconnect the mains plug from the socket and place it in the storage
recess.
2. Turn the machine on with the key switch.
3. Release the parking brake.
4. Select the driving direction with the driving direction selector switch.
5. Actuate the accelerator pedal.
No. Description
1 Turn on the machine
2 Select the driving direction via the driving direction selector switch
3 Select the cleaning programme
4 Loosen the parking brake and actuate the accelerator pedal. The
brushes and water supply are switched on.
5 Adjust the fresh water quantity as required using the adjusting lever of
the fresh water metering system.
Attention
Make sure that the adjusting lever has been opened
sufficiently. Water supply only starts from mark (1)
onwards!
•Position 0: Water supply OFF
•Position 1: Water supply MINIMUM
•Position 2: Water supply MAXIMUM
Attention
Before operating the machine, read and observe the safety
instructions in chapter 1.
The machine can only be put into service when the driver is sitting
on the driver's seat.
The travel drive can only be started when the accelerator pedal is
not actuated when turning the machine on.
0
1
2
36 03-7175-00-00.fm
Putting into service
3.4.2 Useful cleaning tips
Sweep the floor before carrying out wet cleaning. This not only enhances the
cleaning effect but also reduces wear of the machine's working tools.
If the floors are really dirty or wax needs to be removed, treat the floor twice.
In the first step, scrub the floor with a cleaning agent suitable for the degree of
soiling; the squeegee remains raised for this.
Leave the cleaning agent for approx. 5 to 10 minutes; subsequently scrub the
floor again and work with a lowered squeegee.
3.4.3 Turning off the machine
1. Slowly bring the accelerator pedal to the zero position. The machine slows
down to standstill. A better braking effect is achieved when the machine is
slowed down by applying the brake.
2. Bring the driving direction selector switch to the zero position.
3. Switch off the cleaning functions.
4. Turn off the machine with the key switch and hold it with the parking brake.
Note
Use only cleaning agents suitable for automatic machines (foam
retarded). We recommend use of our cleaning and care agents
specifically developed for the machine. These products meet the
requirements of the German Detergent and Cleaning Agent Act
(WRMG).
Observe correct metering of the cleaning agent. Correct metering
saves money and protects the environment. Strong foam
formation is a sign of excessive metering and impairs machine
operation.
Note
Remove the key when leaving the machine to prevent unauthorised
use.
03-7175-00-00.fm 37
Putting into service
3.4.4 Checklist – after cleaning
Environmental danger
Observe the applicable laws and local regulations when disposing of
cleaning agents.
No. Description
1 Drive to a suitable maintenance location
2 Turn off the machine, remove the key and engage the parking brake
3 Empty and flush the waste water tank
4 Check the fresh water filter (adjusting lever for fresh water metering
must be set to 0)
5 Check the sealing strips and suction hose
6 Check the functions and settings
7 Charge the battery
8 Clean the machine. If the machine is not used over a longer period of
time, the solution tank must be fully emptied.
Attention
Do not use a high-pressure cleaner or steam cleaner to clean the
machine.
38 03-7175-00-00.fm
Putting into service
3.5 Loading and transporting
Loading
When loading the machine, observe its weight, see Section 4 Technical data.
Transporting
When transported on a vehicle or trailer, the machine must be secured
against tilting and rolling away. Tie the machine down tightly. To do this, use
tension belts to secure the machine on the supports Fig. 13-10 at the front
and on the eyes Fig. 13-A at the rear.
Attention
When loading and transporting the machine to the work site, the
squeegee and brush head must be raised.
When loading the machine, reverse it (empty drive) up the ramp
(maximum slope 18 %).
Risk of skidding! Drive extremely carefully, especially on wet
ramps.
Fig. 13:
10
A
03-7175-00-00.fm 39
Putting into service
3.6 Service code tables
In case of system errors, a four-digit error code is output in the display panel
in addition to the service indicator (tool key).
The dots of the service code flash. Eliminate the error or note down the ser-
vice code and inform your authorised Hako dealer.
If the cause has been eliminated, the error must be acknowledged via the key
switch OFF/ON.
Service
code
Fault Cause Remedy
1.2.5.2. Brushes stop Foreign particles
between brush and
shaft
Inspect the brushes for
foreign particles and
remove them if
necessary
1.2.6.1. Brushes stop Foreign particles block
the brush
Inspect the brushes for
foreign particles and
remove them if
necessary
1.2.6.3. Brush lift
system, brush
and suction
turbine have
been switched
off
Foreign particles
between brush head
and machine
Foreign particles
between squeegee
and machine
Squeegee jammed
Inspect the brush
head for foreign
particles and remove
them if necessary
Inspect the lift system
for foreign particles
and remove them if
necessary
Make the squeegee
accessible
1.4.6.3. Suction turbine
stops
Foreign particles in
the suction turbine
Faulty suction turbine
Contact the customer
service
3.2.6.5. Error message
when turning
on the machine
Low capacity of the
internal back-up battery
of the machine control
Contact the customer
service
3.2.6.6. Error message
when turning
on the machine
Discharged capacity of
the internal back-up
battery of the machine
control
Contact the customer
service
40 03-7175-00-00.fm
Putting into service
Continued service code table
Service
code
Fault Cause Remedy
3.3.1.1. Service interval
expired
See maintenance
plan
3.4.1.2. Driving not
possible
Error in the drive control Turn the machine
OFF/ON, contact
the customer ser-
vice if necessary
3.4.5.1. Cleaning function
switches off
Drive wheel becomes
sluggish due to foreign
particles
Drive motor overheats
Remove foreign
particles
Let the engine
cool down
3.6.6.4. Driving and clean-
ing not possible
Seat permanently loaded Relieve seat
5.8.7.0. Batteries are not
being charged
Cables on the battery
poles loose or detached
Incorrect type of battery
installed
Contact the
customer service
5.8.7.1. Batteries are not
being charged
Mains plug not inserted
correctly
Incorrect type of battery
installed
Insert the mains
plug correctly
Flashing
number
field
Driving not
possible
Seat not occupied
Start sequence not
observed
Occupy seat
Observe start
sequence
04-7175-00-00.fm 41
Technical data
4 Technical data
Dimensions
Working width
Weights
Driving performance
Wheels
Name Unit 7175.1x 7175.2x 7175.30
Length of machine with squeegee mm 1475 1475 1475
Width of machine with squeegee mm 785 885 885
Width of machine without squeegee mm 700 750 750
Height of machine mm 1215 1215 1215
Brush head mm 550 650 650
Squeegee mm 760 860 860
Weight (empty, without batteries) kg 234 244 244
Total weight (ready for use) kg 377 max. 453 389
Driving speed transportation (forwards/
reverse)
km/h 6/3 6/3 6/3
Climbing capacity when cleaning % 2 2 2
Climbing capacity when loading (reverse) % 18 18 18
Ramp angle/Slope angle % 18 18 18
Turning circle (with squeegee) mm 1795 1795 1795
Wheel diameter mm 250 250 250
Specific wheel contact pressure
front/rear
N/mm
2
0.67/0.43 0.67/0.43 0.67/0.43
42 04-7175-00-00.fm
Technical data
Tank contents
Brush head
Vacuum system
Electrical system
On-board charger
Name Unit 7175.1x 7175.2x 7175.30
Solution tank Litre 75 75 75
Waste water tank Litre 75 75 75
Number of brushes Piece 1 2 2
Brush speed rpm 180 180 180
Brush contact pressure kg 29 35 35
Air quantity
m
3
/h
110 110 110
Vacuum (maximum) mbar 170 170 170
Nominal voltage V 24 24 24
Nominal output (max.) (P1) W 1800 2520 2520
Power consumption drive motor (P1)
S2-40 min
W 530 530 530
Power consumption vacuum motor (P1) W 528 528 528
Power consumption brush motor (P1) W 720 2x720 2x720
Protection class III III III
Type of protection IPX3 IPX3 IPX3
Nominal voltage V 100-230 120-230
Nominal output W 440 750
Protection class II II
04-7175-00-00.fm 43
Technical data
Noise emission value
Vibration
The sound power level (L
wAd
) measured under the customary
conditions of use according to DIN EN 60335-2-72 is:
dB (A) 77
The sound pressure level (L
pA
) (at the ear of the driver) measured
under the customary conditions of use according to
DIN EN 60335-2-72 is:
dB (A) 61
Measuring uncertainty (K
pA
)dB (A)3.5
Under the customary conditions of use, the weighted effective
value of the acceleration to which the upper limbs (hand-arm) are
subjected to according to DIN EN ISO 5349 is:
m/s
2
2.5
Under the customary conditions of use, the weighted effective
value of the acceleration to which the body (feet or seat surface) is
subjected to DIN EN ISO 2631-1 is:
m/s
2
0.5
44 05-7175-00-00.fm
Maintenance and Servicing
5 Maintenance and Servicing
General
The operator is instructed fully on delivery of the machine.
Compliance with the maintenance work recommended by us gives you the
certainty of always having an operational machine available.
Daily and weekly maintenance and repair work can be undertaken by a driver
trained for this, all further Hako system maintenance work may be undertaken
only by trained and qualified personnel.
Please contact your nearest Hako service centre or authorised Hako dealer.
Any warranty claim is null and void if this is not complied with and damage
results.
Please always state the serial number in all enquiries and spare parts orders,
see section 1.7 – type plate.
Hako system maintenance
The Hako system maintenance specifies in single modules the special techni-
cal work to be done and the periods of time for the maintenance activities.
Parts to be replaced for the individual maintenance tasks are determined.
Hako system maintenance:
Assures the reliable readiness for use of the Hako working machines
(preventive maintenance).
Minimises operating costs, repair costs, costs for maintenance.
Assures long life and readiness for use of the machine.
Attention
Before undertaking servicing and maintenance work, read and
observe the safety instructions in chapter 1 of this operating manual!
Note
The machine‘s parts to be serviced are marked with a yellow dot and
yellow areas.
05-7175-00-00.fm 45
Maintenance and Servicing
5.1 Maintenance certificate
Handover
Equipment
Trial run
Handover to customer
Instruction
performed on:
at _______________ operating hours
Hako system maintenance I
125 operating hours
Workshop stamp
performed on:
at _______________ operating hours
Hako system maintenance II
250 operating hours
Workshop stamp
performed on:
at _______________ operating hours
Hako system maintenance I
375 operating hours
Workshop stamp
performed on:
at _______________ operating hours
Hako system maintenance S
500 operating hours
Workshop stamp
performed on:
at _______________ operating hours
Hako system maintenance I
625 operating hours
Workshop stamp
performed on:
at _______________ operating hours
Hako system maintenance II
750 operating hours
Workshop stamp
performed on:
at _______________ operating hours
Hako system maintenance I
875 operating hours
Workshop stamp
performed on:
at _______________ operating hours
Hako system maintenance S
1000 operating hours
Workshop stamp
performed on:
at _______________ operating hours
Hako system maintenance I
1125 operating hours
Workshop stamp
performed on:
at _______________ operating hours
Hako system maintenance II
1250 operating hours
Workshop stamp
performed on:
at _______________ operating hours
Hako system maintenance I
1375 operating hours
Workshop stamp
performed on:
at _______________ operating hours
Hako system maintenance S
1500 operating hours
Workshop stamp
performed on:
at _______________ operating hours
Hako system maintenance I
1625 operating hours
Workshop stamp
performed on:
at _______________ operating hours
Hako system maintenance II
1750 operating hours
Workshop stamp
performed on:
at _______________ operating hours
46 05-7175-00-00.fm
Maintenance and Servicing
5.2 Maintenance plan
Hako system maintenance customer:
Work to be performed by the customer by reference to the servicing and
maintenance instructions specified in the operating manual.
Activity / interval
Daily
Empty the waste water tank, clean the waste water tank and the suction
filter
Check the cover gasket of the waste water tank, clean if necessary
Check the battery, charge if necessary
Fill the solution tank and meter the cleaning agent
Check the squeegee, clean if necessary
Check the drain hose of the waste water tank for soiling, clean if necessary
Weekly
Clean the machine as required
Check the sieve insert in the fresh water filter, clean or replace if necessary
Check the rotating brush, clean if necessary
Check the rotating brushes/pads for wear, replace if necessary
Check the sealing strip at the rotating brush head for wear, replace if
necessary
Check the sealing strips at the squeegee for wear, turn or replace if
necessary
Check the fresh water supply to the brushes, clean if necessary
Clean the suction hose
Check the rubber of the lateral wiper, replace if necessary (option)
Trial run and function test
05-7175-00-00.fm 47
Maintenance and Servicing
Hako system maintenance I:
Performance by an expert of an authorised Hako workshop by reference to
the machine-specific system maintenance.
Activity / interval
Every 125 hours
Check the battery and the charger
Check the vacuum capacity and sound level of the suction turbine
Check the lateral steering stop on the left and right-hand side
Check the cover gasket of the waste water tank, replace if necessary
Check the gasket at the drain hose, replace if necessary
Check the transparency of the level indicator hose, replace if necessary
Check the rear wheel mounting screws, re-tighten if necessary (42 Nm)
Check the condition of tyres
Check correct functioning of the operating and parking brake, readjust if
necessary
Check the electrical system (lighting, fuses and relays), replace parts if
necessary
Check the leak tightness of the gasket at the inspection cover, replace if
necessary
Check the sieve insert of the fresh water filter for damage, replace if
necessary
Check the cover gasket of the fresh water filter, replace if necessary
Check the sealing strip/slot strip of the squeegee, turn or replace if
necessary
Remove fluff and dirt from the air inlet grilles of the brush motors
Check the supporting rollers at the squeegee, replace if necessary
Check the optical condition of the machine (corrosion and labels)
Trial run and function test
48 05-7175-00-00.fm
Maintenance and Servicing
Hako system maintenance II:
Performance by an expert of an authorised Hako workshop by reference to
the machine-specific system maintenance.
Hako system maintenance III/S (safety check)
Performance by an expert of an authorised Hako workshop by reference to
the machine-specific system maintenance. Performance of all legally stipu-
lated safety-relevant tests according to the BGV specifications.
Activity / interval
Every 250 hours
All maintenance work according to Hako system maintenance I
Check the deflecting rollers of the brush head for ease of operation,
replace if necessary
Check the squeegee attachment, reset if necessary
Check the suction hose for damage and firm seating, replace if necessary
Check the drain hose of the waste water tank, replace if necessary
Check the suspension and bearing assembly of the wheel motor for ease
of movement, replace wear parts if necessary
Trial run and function test
Activity / interval
Every 500 hours
All maintenance work according to Hako system maintenance II
Read the error memory and evaluate the error messages
Check electrical performance (drive motor, brush motor and suction
turbine)
Remove coal dust from the drive and brush motors and check the carbon
brushes for ease of movement and wear, replace carbon brushes if
necessary (at the latest after 1000 operating hours)
Check the brake linings and Bowden cables of the brake system for wear,
re-tighten Bowden cables or replace brake linings if necessary
Replace the backup battery of the electrical control and set a real-time
clock
Trial run and function test
05-7175-00-00.fm 49
Maintenance and Servicing
5.3 Battery system
5.3.1 Type of battery
The machines are equipped with different maintenance-free battery systems.
When using other batteries which have been approved by Hako, correspond-
ing settings must be carried out in the configuration menu. These settings
should only be carried out by a workshop authorised by Hako!
Variant Type of battery
Connection
diagram
7175.1x
2x drive battery 12V/115Ah AGM maintenance-free
Driving direction:
7175.2x
4x drive battery 6V/180AH GiV maintenance-free
7175.30
4x AGM/Optima YellowTop S4,2 maintenance-free
50 05-7175-00-00.fm
Maintenance and Servicing
5.3.2 Battery management system (BMS)
The battery management system (BMS) ensures the battery is monitored and
secure. The BMS is responsible for:
Determining the battery charging state during operation
Switching off the cleaning functions when the discharge limit has been
reached to protect the battery against total discharge
When using other batteries which have been approved by Hako, the BMS
must be reset.
5.3.3 Checking the charging state
During operation, the charging state of the batteries is displayed in the display
panel Fig. 14-51. Different numbers of fields are displayed depending on the
charging state:
Four fields visible: Battery is fully charged
Three fields visible: Battery is charged to approx. 2/3
Two fields visible: Battery is charged to approx. 1/3
One field visible: Cleaning functions are switched off after 3 minutes
One field is flashing and a signal is output: Machine can only be further
operated at reduced speed.
Charge the batteries immediately!
Attention
The settings of the BMS should only be carried out by a workshop
authorised by Hako!
Fig. 14:
51
05-7175-00-00.fm 51
Maintenance and Servicing
5.3.4 Charging the batteries (7175.1x/.2x)
The batteries are loaded via the integrated on-board charger. The batteries
can already be charged if one segment of the charging state indicator
Fig. 14-51 has gone out, at the latest, however, after the cleaning functions
have been switched off (one field flashes).
1. Place the machine on a level surface and turn it off.
2. Remove the mains plug Fig. 3-2 from the tray and plug it into a 230 V
socket.
3. The charging process now starts automatically.
Danger
Explosive gases can develop when charging the batteries.
Avoid smoking, fire or naked light in the vicinity of batteries.
Ensure sufficient ventilation when charging the batteries. Do not
inhale battery gases!
Danger of explosion due to short circuits and spark formation!
Never place tools or other electrically conductive objects on the
battery!
Attention
Before initially starting up the machine, charge the used batteries
fully and appropriately with commissioning charge. Please
observe the operating manual of the charging device and the
operating manual of the battery manufacturer. Hako assumes no
liability for battery damage resulting from insufficient commis-
sioning charge.
Never leave batteries discharged, always recharge them
immediately.
If possible, charge the batteries fully to ensure optimum service
life of the batteries. The charger is designed as a continuous
charger and retains the charging state of the batteries (trickle
charge) after completing the charging process.
The seat console must remain open when charging the batteries.
Note
Always charge the batteries after each application. If the battery is
not used for a longer period of time, interim charge the batteries.
52 05-7175-00-00.fm
Maintenance and Servicing
5.3.5 Checking the charging process (7175.1x/.2x)
During the charging process, the charging progress is displayed in the display
panel Fig. 15-51:
Field 1 permanently ON, running light in fields 2,3 and 4:
Main charge <50 % charged battery capacity
Fields 1 and 2 permanently ON, running lights in fields 3 and 4:
Main charge >50 % charged battery capacity
Fields 1, 2 and 3 permanently ON, field 4 flashes: Recharge
All fields permanently ON: End of charging process
Note
The battery should always be charged without being interrupted.
During the charging process it is not possible to turn on the
machine.
An error is present when the battery symbol flashes in connection
with a field, see operating manual of the charger.
Fig. 15:
1
2
3
4
51
05-7175-00-00.fm 53
Maintenance and Servicing
5.3.6 Information on quick-charging technology (only 7175.30)
The daily operating period of the battery can be extended by using quick-
charging technology, i.e. by using free time for interim charging.
At the beginning of the charging process, additional capacity, which is
available immediately, is charged at a very high charge current for
25 minutes. Quick charges are possible when two or three segments are
displayed.
For a full charging process, the machine remains connected to the quick-
charger. Change-over from quick to normal charging takes place automati-
cally.
Charge the batteries fully after completing the daily cleaning tasks.
5.3.7 Table – charging times for quick-charging technology (only
7175.30)
*Part charge includes up to 25 minutes of quick charging
Battery
charging state
indicator
Charging
state
Cleaning time Charging time Additional
cleaning time
4 segments:
Battery full
approx.
100 minutes
3 segments: approx.
65 minutes
2 segments: approx.
30 minutes
25 minutes
quick charging
+ 50 minutes
1 segment
flashing
3 minutes
Battery
discharged
0 minutes Part charge *
25 minutes
Part charge *
60 minutes
Full charge *
5 hours
50 minutes
66 minutes
see 1st line
54 05-7175-00-00.fm
Maintenance and Servicing
5.3.8 Charging the battery (only 7175.30)
The batteries are charged with the charger Fig. 16-A. The batteries can
already be charged when one segment in the charging status indicator
Fig. 14-51 has gone out.
1. Place the machine on a level surface and turn it off.
2. Disconnect the battery plug Fig. 16-B on the machine.
3. Connect the battery plug of the machine to the charger Fig. 16-C.
4. Switch on the quick-charger. For charging times, please refer to the table,
see section 5.3.7.
5. During the charging process, the battery charging status is displayed in the
display Fig. 16-D of the quick-charger. In the meantime, the charging con-
trol indicator Fig. 14-51 in the display panel is not active!
6. Terminate the charging process:
Switch off the quick-charger
Disconnect the battery plug from the charger and reconnect it to the
machine Fig. 16-E.
Attention
The number of quick charging processes is limited to four a day.
More frequent utilisation may result in excessive heat and
premature failure of the batteries.
Only charge the battery with the supplied quick-charger!
Note
An error is present when the battery symbol flashes in connection
with a field, see operating manual of the charger.
Fig. 16:
AC
B
E
D
05-7175-00-00.fm 55
Maintenance and Servicing
5.3.9 Replacing batteries (all variants)
5.3.10 Maintaining drive batteries
For information on maintaining drive batteries, see Hako supplementary sheet
88-60-2556.
5.3.11 Disposing of batteries
Used batteries with the recycling symbol contain reusable commodities. They
must not be disposed of in domestic waste, see Chapter 1 Environmental pro-
tection instructions and disposal.
Attention
Only use batteries approved by Hako at the intended position!
Only Optima YellowTop S4,2 must be used for variant 7175.30,
otherwise the battery might be damaged.
Only use maintenance-free, sealed batteries!
Use suitable lifting equipment when inserting/replacing batteries.
When changing the type of battery, the battery holder in the
battery compartment might have to be adjusted to prevent
slipping.
The batteries should only be replaced by qualified service
personnel!
Note
For reasons of safety, we recommend that an authorised Hako
workshop carries out these tasks.
56 05-7175-00-00.fm
Maintenance and Servicing
5.4 Solution tank
5.4.1 Filling the solution tank
Fill the solution tank Fig. 1
-7 before commencing work or as required.
1.
Place the machine on a level surface.
2. Remove the insert of the filling opening Fig. 18-A.
3. Fill the solution tank up to the maximum (1/1) mark Fig. 17-6 (maximum
water temperature 50 °C).
4. Add detergent according to the manufacturer's regulations via the sieve
insert Fig. 18-B.
Note
Optionally, the solution tank can be filled via the automatic filling
unit, see Chapter 5 Options.
Fig. 17:
5
6
7
A
B
Fig. 18:
05-7175-00-00.fm 57
Maintenance and Servicing
5.4.2 Emptying the solution tank
There are three options to empty the solution tank:
Emptying the solution tank via the fresh water filter
Position the machine ensuring the fresh water filter Fig. 19-24 is above a
drain in the ground.
1. Set the adjusting lever of the fresh water metering system Fig. 19-21 to 0.
2. Unscrew the filter cover.
3. Open the adjusting lever of the fresh water metering system as far as possi-
ble. The solution tank is emptied via the fresh water filter.
Emptying the solution tank via the maintenance opening
Position the machine ensuring that the maintenance opening Fig. 19-20 is
above a drain in the ground.
1. Turn and remove the cover of the maintenance opening.
2. The solution tank is emptied via the maintenance opening.
3. After emptying the tank, place the cover on the maintenance opening and
screw tight.
Note
To facilitate loosening and closing the cover, use the supplied
handle Fig. 19-A.
Fig. 19:
21
24
20
A
58 05-7175-00-00.fm
Maintenance and Servicing
Emptying the solution tank via the vacuum system
This method is recommended if no drain is available and the waste water tank
is empty.
1. Turn off the machine and engage the parking brake.
2. Set the adjusting lever of the fresh water metering system Fig. 19-21 to 0.
3. Turn and remove the filter cover of the fresh water filter Fig. 19-24.
4. Remove the suction hose Fig. 20-28 from the squeegee and plug it onto
the filter housing Fig. 20-A.
5. Open the adjusting lever of the fresh water metering system as far as
possible.
6. Switch on the suction turbine via button Fig. 20-35. The fresh water is
conveyed into the waste water tank.
5.4.3 Cleaning the solution tank
1. Empty the solution tank, see section 5.4.2
2. Turn and remove the cover of the maintenance opening Fig. 19-20.
3. Thoroughly clean the solution tank with a water hose.
4. After cleaning the tank, place the cover onto the maintenance opening and
screw tight.
5. After filling the solution tank, check the cover of the maintenance unit for
leak tightness. If necessary, screw the cover tighter.
Note
To facilitate loosening and closing the cover, use the supplied
handle Fig. 19-A.
Fig. 20:
35
A
28
05-7175-00-00.fm 59
Maintenance and Servicing
5.4.4 Cleaning the fresh water filter
Check the filter sieve Fig. 21-B of the fresh water filter Fig. 19-24 weekly and
clean or replace it as required.
1. Set the adjusting lever of the fresh water metering system Fig. 19-21 to 0.
2. Turn and remove the filter cover Fig. 21-A.
3. Remove the filter sieve Fig. 21-B from the filter housing and clean it under
running water. Replace the filter sieve as required.
4. Reinsert the filter sieve and filter cover.
Fig. 21:
A
B
60 05-7175-00-00.fm
Maintenance and Servicing
5.5 Waste water tank
5.5.1 Emptying the waste water tank
Empty the waste water tank Fig. 22-18 daily, as required or when an acoustic
signal is output (increased suction turbine speed).
1. Drive to a suitable disposal centre.
2. Position the machine, ensuring the drain hose Fig. 23-26 reaches the drain
in the ground.
3. Turn off the machine.
Environmental danger
Observe applicable laws and local regulations when disposing of
cleaning agents!
Fig. 22:
26
18
Fig. 23:
B
C
D
A
05-7175-00-00.fm 61
Maintenance and Servicing
4. Remove the drain hose from the holder. Push the suction hose Fig. 23-A
slightly to the side so that the waste water tank can be emptied fully via the
drain hose.
5. Bend the squeeze nozzle in the front section Fig. 23-B.
6. Open the cap Fig. 23-C.
7. Return the drain hose to its original position Fig. 23-D and empty the waste
water tank fully.
8. After emptying the tank, close the cap.
5.5.2 Cleaning the waste water tank
Clean the waste water tank daily or as required.
1. Empty the waste water tank, see section 5.5.1.
2. Open the tank cap Fig. 24-4 of the waste water tank.
Put one hand in the recessed grip Fig. 24-A of the tank cap.
Open the tank cap until the support Fig. 24-B engages.
3. Remove the drain hose from the holder and position it above a drain in the
ground. Open the cap of the drain hose.
4. Flush out the residual dirt with fresh water.
5. Also flush the drain hose.
6. Close the tank cap:
Put one hand into the recessed grip Fig. 24-A and open the tank cap a
little further.
Unlock the support Fig. 24-B with your left hand and close the tank cap.
4
A
B
Fig. 24:
17
62 05-7175-00-00.fm
Maintenance and Servicing
5.5.3 Cleaning the suction filter
Check the function of the suction filter Fig. 24-17 daily and clean it as
required.
1. Remove the suction filter from the neck.
2. Clean the suction filter under running water.
3. Mount the suction filter on the neck again.
5.5.4 Checking the gasket at the drain hose
Check the function of the gasket at the drain hose Fig. 25-A daily, replace it
after 125 operating hours at the latest.
After use, check the drain hose for soiling and clean if necessary.
5.5.5 Checking the gasket in the tank cap
Check the function of the gasket in the tank cap Fig. 26-C daily and replace it
if damaged.
When replacing the gasket:
Ensure that the installation position is correct.
Ensure that the gasket is pressed fully into the groove.
Ensure that the gasket is seated correctly.
Fig. 25:
A
A
Fig. 26:
05-7175-00-00.fm 63
Maintenance and Servicing
5.6 Brush head
5.6.1 Cleaning the brushes
Clean the brushes Fig. 27-A in the brush head Fig. 27-9 daily or as required.
1. Decouple the brush, see section 5.6.3.
2. Thoroughly clean the brush under running water.
3. Couple the brush, see section 5.6.4.
Note
If the brush head has two brushes, make sure that the cleaned
brushes are installed on the same side in the brush head where they
were removed.
7175.1x
7175.2x/.30
Fig. 27:
9 8A
B
C
44 36 37
B
C 9
64 05-7175-00-00.fm
Maintenance and Servicing
5.6.2 Changing the brushes
Use the indicator Fig. 28-A on the brush head to:
determine the wear of the brushes.
determine whether the brushes have been assembled.
Change the brushes at the latest when the red pointer is in the red zone.
1. Decouple the brushes, see section 5.6.3.
2. Couple the new brushes, see section 5.6.4.
5.6.3 Decoupling the brushes
Variant 7175.1x:
To decouple the brush, push button Fig. 27-44 for approx. 5 seconds until the
four consecutively flashing symbols in the display panel have gone out.
After the brush has been decoupled, the upper or lower symbol bar flashes
alternately. The machine is not ready. To complete brush decoupling,
acknowledge the process with the key switch OFF/ON.
Variant 7175.2x/.30:
1. Turn off the machine.
2. To decouple the brushes, press down the lever Fig. 27-8 with your foot.
Attention
If no brushes have been assembled, the red pointer is in the red
zone of the indicator.
Fig. 28:
A
05-7175-00-00.fm 65
Maintenance and Servicing
5.6.4 Coupling the brushes
Variant 7175.1x:
1. Turn on the machine.
2. Position the brushes centrally to the brush head.
3. Push the brush head button Fig. 27-36 or the brush head and squeegee
button Fig. 27-37.
4. Slightly actuate the accelerator pedal; the brush is coupled automatically.
Variant 7175.2x/.30
:
1. Place the brush underneath the brush head holder.
2. Raise the brush and push it firmly into the holder Fig. 28.
3. Turn the brush 360° and push by hand until it engages fully.
5.6.5 Replacing the deflecting roller
Check the deflecting roller Fig. 27-B weekly for damage and replace it as
required.
5.6.6 Replacing the sealing strip of the brush head
Check the sealing strip Fig. 27-C weekly for wear and replace it as required.
To do this, loosen the fastener and remove the sealing strip. Assembly is in
reverse order.
Fig. 29:
66 05-7175-00-00.fm
Maintenance and Servicing
5.7 Squeegee
Optimum vacuuming is achieved through:
Clean and undamaged or not worn sealing strips.
Correctly set inclination angle and correct height adjustment of the sealing
strips.
.
5.7.1 Cleaning the squeegee
Check the squeegee Fig. 30-23 daily for soiling and foreign particles and
clean it as required.
1. Pull out the suction hose Fig. 30-28, loosen the two star-shaped handles
Fig. 30-A and remove the squeegee.
2. Thoroughly clean the squeegee and remove foreign particles.
3. Assembly is in reverse order.
Fig. 30:
23
A
C
A
E
D
B 28F
05-7175-00-00.fm 67
Maintenance and Servicing
5.7.2 Replacing the sealing strips
Check the sealing strip Fig. 31-G and slot strip Fig. 31-H at the squeegee
weekly for wear and intactness. If the used sealing edge of the sealing strip is
worn or damaged, turn or replace the sealing strip. Each sealing strip can be
used four times before it needs replacing.
1. Pull out the suction hose Fig. 30-28.
2. Loosen the star-shaped handles Fig. 30-A and remove the squeegee.
3. Press together the protective caps Fig. 31-I and pull them out.
4. Loosen the clamping band Fig. 31-B and remove it from the catch
Fig. 30-C.
5. Pull out the aluminium body Fig. 31-J from the top.
6. Remove the sealing strip Fig. 31-G and slot strip Fig. 31-H from the plastic
body Fig. 31-K.
7. Before turning or replacing the sealing strips, thoroughly clean the plastic
body!
8. Assembly is in reverse order.
H
G
J
K
I
B
Fig. 31:
I
68 05-7175-00-00.fm
Maintenance and Servicing
5.7.3 Adjusting the sealing strips
Inclination adjustment
The correct inclination adjustment is decisive for:
Ensuring that the sealing strips of the squeegee rest evenly with the
complete contact surface on the ground.
Ensuring that the squeegee runs smoothly and evenly during the suction
process.
1. Place the machine on a level surface and lower the squeegee.
2. Loosen the lock nuts Fig. 30-D and turn the threaded bar Fig. 30-E to
adjust the squeegee ensuring both ends of the sealing strips barely have
contact with the ground.
Turn the threaded bar counter-clockwise: The distance of the sealing strip
to the ground increases at the ends Fig. 32.
Turn the threaded bar clockwise: The distance of the sealing strip to the
ground decreases at the ends Fig. 33.
3. Turn on the machine and check the suction pattern. When driving, the seal-
ing strips must be turn over evenly everywhere (centre and outside).
4. Tighten the lock nuts of the threaded bar to 54 Nm.
Fig. 32:
Fig. 33:
05-7175-00-00.fm 69
Maintenance and Servicing
Height adjustment
The height adjustment (X) of the supporting rollers Fig. 34-F has been set to
3 mm in the factory. If striping still occurs despite optimum inclination adjust-
ment, set the distance of the supporting rollers to the lower edge of the sealing
strip by adjusting the number of washers under the supporting roller holder.
Number of washers /
Distance to the
ground (X)
Use
1/2mm Very smooth floor surfaces, e.g. coated screed,
PVC, linoleum
2/3mm Standard setting
3/4mm Very uneven floor surfaces, e.g. poorly laid tiles
(water does not drain off)
Fig. 34:
F
X
2 mm
3 mm
4 mm
70 05-7175-00-00.fm
Maintenance and Servicing
5.8 Options
The following options are available for Scrubmaster B75 R.
Item Designation Order no.
10 On-board chemical metering system 7678.30
14 Working spotlight 7092.50
16 Warning device forwards gear 7091.50
19 Coarse dirt sieve 7060.50
23 Wiper and squeegee 760 7176.05
27 Hand suction tool, including holder 7036.60
29 Tray 7009.50
30 Automatic filling unit 7743.00
45 Fleet-Recorder Standard 5305.00
Fig. 35:
45
14
10
16
29
19
2327
19
30
6
05-7175-00-00.fm 71
Maintenance and Servicing
5.8.1 On-board chemical metering system
The on-board chemical metering system is used for optimum metering of the
cleaning agent.
Putting into service
1. Fill the canisters Fig. 36-A with cleaning agent.
2. Turn the machine on with the key switch.
3. Switch on the chemical metering system via the button Fig. 36-34.
4. Press the quick ventilation switch Fig. 36-B at the dosing pump until
cleaning agent is available at the non-return valve.
Setting the mixing ratio
1. Remove the grey cover Fig. 36-C at the dosing pump.
2. Set the mixing ratio according to the used cleaning chemicals.
3. Basic setting = 1:700
Set the rotary knob between stage 1 and 2, see the table.
Maintenance
Check the hose section Fig. 36-D in the hose pump (length approx. 23 mm)
and replace it if necessary.
Attention
Only use cleaning agents suitable for automatic machines (foam
retarded). We recommend use of our cleaning and care agents
specifically developed for the machines. These products meet the
requirements of the German Detergent and Cleaning Agent Act
(WRMG).
Fig. 36:
A
34
Stage Detergent Mixing ratio
1 0.1 % 1:1000
2 0.2 % 1:500
3 0.3 % 1:333
4 0.4 % 1:250
5 0.5 % 1:200
6 0.6 % 1:167
7 0.7 % 1:143
8 0.8 % 1:125
9 0.9 % 1:111
10 1.0 % 1:100
B
C
D
72 05-7175-00-00.fm
Maintenance and Servicing
5.8.2 Working spotlight
The working spotlight is used to enhance lighting of the working area and
must be aligned accordingly.
Use the button to switch the working spotlight on and off.
Push the button: Working spotlights ON
Push the button again: Working spotlights OFF
5.8.3 Warning device forwards gear
When activating the warning device forwards gear, the warning lamp flashes
and an acoustic signal is output.
Use the button to toggle between two options:
Push the button once: Warning lamp flashes
Push the button twice: Warning lamp flashes In forwards gear, a warning
signal is additionally output.
Push the button again: Warning device OFF
5.8.4 Coarse dirt sieve of waste water tank
The coarse dirt sieve filters coarse dirt particles from the waste water tank and
thus prevents clogging of the drain hose.
05-7175-00-00.fm 73
Maintenance and Servicing
5.8.5 Wiper and squeegee 760
This option is recommended when the working area is larger than 790 mm.
To replace the brushes, raise the wiper at the handle Fig. 37-A and swivel
it to the side.
If the wiper is not required, it can be hooked at the intended position using
the locking lever Fig. 37-B.
Maintenance
Maintenance and servicing squeegee see section 5.7.
Check the rubber of the wiper weekly for wear and replace it if necessary.
The wiper rubber can be used four times.
5.8.6 Tray
The tray is used to transport cleaning utensils.
Note
Before opening the cover of the waste water tank, remove the tray!
Fig. 37:
A
B
74 05-7175-00-00.fm
Maintenance and Servicing
5.8.7 Automatic filling unit
Optionally, the solution tank can be filled via the automatic filling unit.
1. Fit the water connection Fig. 38-A. Do not yet open the water supply!
2. Push the operating button Fig. 38-B. The indicator knob Fig. 38-C pro-
trudes.
3. Open the water supply – water starts to flow.
4. The filling unit switches off automatically when the tank is full. The indicator
knob Fig. 38-C no longer protrudes.
5. Close the water supply and remove the water connection. Use a water line
fitted with a stop valve!
Attention
According to DIN EN 1717, the automatic filling unit must not be
operated without a system separator (operating manual).
Note
The machine can also be filled manually through the opening in the
operating button Fig. 38-B. Check the level in the level indicator
Fig. 35-6.
Fig. 38:
A
B
max. 50 °C
min. 2.5 bar
max. 6 bar
C
05-7175-00-00.fm 75
Maintenance and Servicing
5.8.8 Fleet-Recorder Standard
The Fleet-Recorder records operating times and further operating conditions
of the machine.
Putting into service
1. Turn on the machine with the ignition key Fig. 39-A.
Red LED of the I-Button ON.
2. Press the I-Key Fig. 39-B against the I-Button Fig. 39-C for one to 2 sec.
Red LED OFF.
The operating data recording system is active.
If the machine is not registered with the I-Key, the following condition arises
according to the selected option:
*deviating machine functions depending on the respective customer configuration possible
Ending operation
1. Turn off the machine with the key switch.
Optional Indicator LED Machine function* Data recording
Standard Red LED ON Fully functional The operating data
recording is acti-
vated or fully sup-
pressed according to
the presetting.
GPS data is recorded
as standard.
Option
5400.00
Red LED ON Function of the
working tools is
locked, transporta-
tion is possible
Option
5400.10
Red LED ON, a
warning signal is
additionally output after
approx. 5 seconds
Fully functional
Note
Red illuminated LED or warning signal request the activation of the
operating data recording system via the I-Key!
Fig. 39:
A
B
C
76
EC Declaration of Conformity
EC Declaration of Conformity
Hako GmbH
Hamburger Str. 209-239
23843 Bad Oldesloe, Germany
declare in sole responsibility that the following products
Scrubmaster B75 R type: 7175
on which this declaration is based correspond with the relevant basic safety
and health requirements of the EC Directive 2006/42/EC as well as the require-
ments according to 2004/108/EC.
The following standard(s) and technical specifications was/were referred to for
the correct implementation of the safety and health requirements named in the
EC Directive:
EN 60335-2-72
EN 55012
EN 61000-6-2
Name of the authorised person who compiles the technical documents for
Hako:
Ludger Lüttel
Bad Oldesloe, 24.03.2015
Dr. Rainer Bavendiek
Development Manager
(corresp. to the EC Directive 2006/42/EC)
77
Hako: environmental-
friendly right from the
start
It is our legacy to leave
behind a clean planet.
That is why resources-,
environmental- and cli-
mate protection charac-
terize each and every
process at Hako which
has been certifi ed by in-
dependent institutions.
Learn more about our
on-going commitment at
www.hako.com
We are available 24/7
Hako’s spare part ex-
press- and on-call ser-
vice guarantees best
possible availability.
Close to you wherever
you are
Our effi cient close-knit
sales & service network
guarantees close proxi-
mity and rapid help.
Cleanliness combined
with safety
Our machines meet
the highest standards.
Reliable quality
“Made by Hako”.
Buying, leasing, renting
We offer you a number
of individual and attractive
nancing & procurement
options.
Hako GmbH
H e a d O f fi c e
Hamburger Str. 209-239
23840 Bad Oldesloe
Tel. +49 (0) 45 31- 806 0
info@hako.com
www.hako.com
DIN EN ISO 9001:2008
DIN EN ISO 14001:2009
5

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