57MS 441
English / USA
Definitions
1. Carburetor Box Cover with clips
Lock for carburetor box cover.
2. Carburetor Adjusting Screws
For fine tuning the carburetor.
3. Switch for handle heating
(Special accessory)
For switching the electric handle
heating on and off.
4. Spark Plug Boot
Connects the spark plug with the
ignition wire.
5. Shutter
With summer and winter positions.
Carburetor is heated in winter
position.
6. Decompression Valve –
(automatically resetting)
Reduces compression resistance -
to make engine starting easier -
when activated.
7. Chain Brake
A device to stop the rotation of the
chain if activated in a kickback
situation by the operator's hand or
by inertia.
8. Chain Sprocket
The toothed wheel that drives the
saw chain.
9. Chain Sprocket Cover
Covers the clutch and the sprocket.
10. Chain Catcher
Helps to reduce the risk of operator
contact by a chain if it breaks or
comes off the bar.
11. Chain Tensioning Screw
Permits precise adjustment of chain
tension.
12. Bumper Spike
Toothed stop for holding saw steady
against wood.
13. Guide Bar
Supports and guides the saw chain.
14. Oilomatic Saw Chain
A loop consisting of cutters, tie
straps and drive links.
15. Oil Filler Cap
For closing the oil tank.
16. Muffler
Reduces engine exhaust noise and
directs the exhaust gases.
17. Front Hand Guard
Provides protection against
projecting branches and helps
prevent left hand from touching the
chain if it slips off the handlebar. It
also serves as the lever for chain
brake activation.
18. Front Handle
Handlebar for the left hand at the
front of the saw.
19. Starter Grip
The grip of the starter, for starting
the engine.
20. Fuel Filler Cap
For closing the fuel tank.
21. Master Control Lever
(On/Off/Stop control, Choke
control)
Lever for choke control, starting
throttle, run and stop switch
positions.
22. Throttle Trigger
Controls the speed of the engine.
23. Throttle Trigger Lockout
Must be depressed before the
throttle trigger can be activated.
24. Rear Handle
The support handle for the right
hand, located at or toward the rear
of the saw.
25. Rear Hand Guard
Gives added protection to
operator's right hand.
Guide Bar Nose
The exposed end of the guide bar.
(not illustrated, see chapter
"Tensioning the Saw Chain")
Clutch
Couples engine to chain sprocket
when engine is accelerated beyond
idle speed. (not illustrated)
Anti-Vibration System
The anti-vibration system includes a
number of anti-vibration elements
designed to reduce the
transmission of vibrations created
by the engine and cutting
attachment to the operator's hands.
(not illustrated)
