6
OPERATING INSTRUCTIONS
Installing or removing bit
Important:
Always be sure that the tool is switched off and
unplugged before installing or removing the bit.
This tool accepts bits either with or without a collar on its
shank.
Bit with collar (Fig. 1)
Bit without collar (Fig. 2)
To install the bit, follow either procedure (1) or (2)
described below.
(1) For bits with a collar (Fig. 3):
Pivot the tool retainer back and slightly downward. Insert
the bit into the tool holder as far as it will go. To securely
retain the bit, return the tool retainer to its original position.
(a) When the bit is inserted.
(b) When the bit is retained.
CAUTION:
Always assure that the bit is securely retained by
attempting to pull the bit out of the tool holder after com-
pleting the above procedure.
(2) For bits without a collar (Fig. 4):
Pivot the tool retainer forth and slightly downward. With
the notched portion of the bit facing the tool retainer
shaft, insert the bit into the tool holder as far as it will go.
Then pivot the tool retainer further downward toward the
cylinder A to securely retain the bit.
(a) When the bit is inserted.
(b) When the bit is retained.
CAUTION:
• Always assure that the bit is securely retained by
attempting to pull the bit out of the tool holder after
completing the above procedure.
• The bit without a collar cannot be retained by the
method shown in Fig. 3.
Switch action (Fig. 5)
To start the tool, simply squeeze the switch lever.
Release the switch lever to stop.
Operation
Hold the tool firmly with both hands. Turn the tool on and
apply slight pressure on the tool so that the tool will not
bounce around, uncontrolled. Pressing very hard on the
tool will not increase the efficiency.
MAINTENANCE
CAUTION:
Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
Replacement of carbon brushes (Fig. 6 & 7)
Whenever carbon brushes must be replaced, they cut out
the tool automatically. When this occurs, remove the motor
housing cover and then replace both carbon brushes at
the same time. Use only identical carbon brushes.
Lubrication (Fig. 8 & 9)
This tool requires no hourly or daily lubrication because it
has a grease-packed lubrication system. It should be
relubricated after every 6 months of operation. Send the
complete tool to Makita Authorized or Factory Service
Centre for this lubrication service. However, if circum-
stances require that you should lubricate it by yourself,
proceed as follows.
First, switch off and unplug the tool. Remove the plate 50
using a screwdriver, then replenish with fresh grease
(60 g). Use only Makita genuine grease (optional acces-
sory). Filling with more than the specified amount of
grease (approx. 60 g) can cause faulty hammering action
or tool failure. Fill only with the specified amount of
grease. Reinstall plate 50 and secure with the screws.
To maintain product safety and reliability, repairs, mainte-
nance or adjustment should be carried out by a Makita
Authorized Service Centre.
