27
100642 - ChAiNSAw
MAiNTENANCE
Left-hand cutters
Right-hand cutters
Filling angle
Figure 33
80º
30º
Top plate
Side plate
Correct Filling angle
Figure 34
Flat file
Depth gauge joiner
Figure 35
Restore original rounded shape
Figure 36
Maintaining the Guide bar
1. Inspect the guide bar frequently, at regular intervals (for
example, after every 5 hours of operation), to ensure even
wear on the top and bottom of the guide bar. Refer to
Removing and Installing the Guide Bar and Saw Chain
.
2. Clean the guide bar groove and oil passages whenever
the saw chain is removed, when the chainsaw has been
used heavily or when the saw chain appears dirty. Use a
screwdriver, putty knife, wire brush or similar instrument
to remove debris from the guide bar groove (Fig. 37). Use
a small, soft wire to remove any debris from the chain oil
discharge hole (Fig. 38).
NOTiCE
If the oil passages are clear, the saw chain will give off a spray
of oil shortly after it begins to rotate during operation.
3. Frequently check the guide bar for damage (Fig. 39).
Feathering and burring of the guide bar rails (the ridges on
either side of the bar groove) is a normal process of guide
bar wear. Such faults should be smoothed with a file as soon
as they occur (Fig. 39). A guide bar with the following faults
should be replaced:
3a. Wear inside the guide bar rails that permits the chain to
lay sideways
3b. Bent guide bar
3c. Cracked or broken rails
3d. Spread rails
Refer to
Replacing the Guide Bar and Saw Chain
.
Lubricating the Guide bar Sprocket Tip
The guide bar sprocket tip was lubricated at the factory, but
requires regular lubrication. Failure to lubricate the guide bar
sprocket tip will result in poor performance, damage to the
chainsaw and will VOID the warranty.
NOTiCE
This procedure can be performed while the guide bar and saw
chain are still assembled on the chainsaw.
1. Clean the guide bar sprocket tip thoroughly with a damp cloth
(Fig. 40).
2. Use a guide bar tip lube gun (not included) to inject grease
into the lubrication hole (Fig. 40). Inject grease until it
appears on the outer edge of the guide bar sprocket tip.
3. Rotate the saw chain by hand. Always wear heavy-duty
protective gloves. Make sure the chain brake is disengaged.
4. Repeat the lubrication process until the entire guide bar
sprocket tip is lubricated.
