1. Carburetor Box Cover Twist Lock
Lock for carburetor box cover.
2. Spark Plug Boot
Connects the spark plug with the
ignition wire.
3. Decompression Valve
Releases compression pressure to
make starting easier.
4. 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.
5. Chain Sprocket
The toothed wheel that drives the
saw chain.
6. Chain Sprocket Cover
Covers the clutch and the sprocket.
7. Chain Catcher
Helps to reduce the risk of operator
contact by a chain when it breaks
or comes off the bar.
8. Chain Tensioner
Permits precise adjustment of chain
tension.
9. Adjusting Wheel
Permits precise adjustment of chain
tension.
10. Bumper Spike
Toothed stop for holding saw steady
against wood.
11. Guide Bar
Supports and guides the saw chain.
12. Oilomatic Saw Chain
A loop consisting of cutters, tie
straps and drive links.
13. Oil Filler Cap
For closing the oil tank.
14. Muffler
Reduces engine exhaust noise and
directs the exhaust gases.
15. Front Hand Guard
Provides protection against
projecting branches and helps
prevent left hand from touching the
chain if it slips off the handle bar.
It also serves as the lever for chain
brake activitation
16. Front Handle
Handle bar for the left hand at
front of saw.
17. Starter Grip
The grip of the starter, for starting
the engine.
18. Fuel Filler Cap
For closing the fuel tank.
19. Master Control Lever
Lever for choke control,
starting throttle, run and
stop switch position.
20. Throttle Trigger
Controls the speed of the engine.
21. Throttle Trigger Interlock
Must be depressed before the
throttle trigger can be activated.
22. Rear Handle
The support handle for the right
hand, located at or toward the
rear of the saw.
23. 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 buffers designed to
reduce the transmission of
vibrations created by the engine and
cutting attachment to the
operator’s hands.
(not illustrated).
Definitions
017, 018 3
