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GUmDE BAR MAmNTENANCE:
Most guide bar proMems can be prevented mereiy by
keeping the chain saw well maintained.
hsuffbbnt
guide bar iubrbafion and operating the saw
with chain that is too tight will contribute to rapid bar wear.
To heip minimize bar wear, the following guide bar
maintenance procedures are recommended.
BAR WEAR - Turn guide bar frequently at reguiar
intervais (for exampb,
after 5 hours of use), to ensure
even wear on top and bottom of bar.
BAR GROOVES - Bar grooves (or rains which support and
carry the chain) shouid be cbaned if saw has been used
heaviiy or if saw chain appears dirty. RaiNsshouid aiways
be cbaned every time saw chain is removed.
OIL PASSAGES - Oil passages on the bar should be
cleaned to ensure proper lubrication of the bar and chain
during operation.
NOTE: The condition of the oil passages can be easily
checked. If the passages are clear, the chain will
automatically
give off a spray of oil within
seconds of starting the saw. Your saw is
equipped with an automatic oiler system.
CHAIN
MAmNTENANCE
Chain
Tension
Check the chain tension frequently and adjust as often as
necessary to keep the chain snug on the bar, but loose
enough to be pulled around by hand.
Breaking
in a New Saw Chain
A new chain and bar will need chain readjustment after
as few as 5 cuts. This is normal during the break-in
period, and the interval between future adjustments
will
begin to lengthen quickly.
WARNING: Never have more
than 3 links
removed from a loop of chain. This could
cause damage to the sprocket.
i
Chain
Lubrication
Always make sure the automatic oiler system is working
properly. Keep the oil tank filled with Genuine Factory
Parts Chain, Bar and Sprocket Oil.
Adequate lubrication of the bar and chain during cutting
operations is essential to minimize friction with the guide bar.
Never starve the bar and chain of lubricating oil. Running
the saw dry or with too little oil will decrease cutting
efficiency, shorten saw chain life, cause rapid dulling of
chain, and lead to excessive wear of bar from
overheating. Too little oil is evidenced by smoke or bar
discoloration.
Chain
Sharpening
Chain sharpening requires special tools to ensure that
cutters are sharpened at the correct angle and depth. For
the inexperienced chain saw user, we recommend that
the saw chain be professionally sharpened by the
nearest Authorized Service Center. If you feel
comfortable sharpening your own saw chain, special
tools are available from your Authorized Service Center.
CHAIN
REPLACEMENT
mNFORMATmON
There may be other quality equivabnt
replacement
components
for achieving kickback protection.
Bar Length
Drive Links
Part
Number
16" Bar
54 DL
6220=210816
18" Bar
60 DL
6220=210805
mNERTmA CHAroN BRAKE@
ACTmON
NOTE: THIS SAW IS EQUIPPED WITH AN INERTIA
CHAIN BRAKE. IF THE SAW KICKS BACK
WHILE IN USE, THE INERTIA OF THE MOVING
SAW WILL ACTPTATE THE BRAKE. A BRAKE
BAND AROUND THE CLUTCH DRUM
ACTIVATES AND STOPS THE MOVING CHAIN.
CHAroN BRAKE@ OPERATmONAL
TEST
Test the Chain Brake@ periodically to ensure proper
function.
Perform a Chain Brake@ test prior to initial cutting,
following extensive cutting, and definitely following any
Chain Brake@ service. Test the Chain Brake:
1.
Place saw on a clear, firm, flat surface.
2.
Start engine.
3.
Grasp the rear handle (A) with your right hand (Fig. 33).
4.
With your left hand, hold the front handle (B) [not
Chain Brake@ lever (C)] firmly (Fig. 33).
5.
Squeeze the throttle trigger to 1/3 throttle, then
immediateiy activate the Chain Brake@ lever (C) (Fig. 33).
anything;
don't let the saw tip forward.
6.
Chain should stop abruptly. When it does,
immediately release the throttle trigger.
7.
If Chain Brake@ functions properly, turn the engine
off and return the Chain Brake@ to the DISENGAGED
position.
A
Fig. 33
19
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