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100647 - ChAiNSAw
2d. Apply a few firm strokes to each tooth. When filed
correctly, the top plate will be at a 30º angle and the side
plate will be at an 80º angle (Fig. 34). Using the correct
file and file holder will automatically produce the correct
angles.
2e. File all the left-hand cutters in one direction (Fig. 33).
Then move to the other side of the saw chain and file all
of the right-hand cutters in the opposite direction (Fig. 33).
2f. Occasionally remove filings with a wire brush.
3. Use a depth gauge tool (not included) to measure the depth
gauge clearance (Fig. 35) of each cutter. The depth gauge
clearance must be maintained at 1/32 inch (0.6 mm). The
depth gauge clearance determines the depth at which the
cutter enters the wood during operation and the size of the
wood chips produced. Too much clearance increases the
chance of kickback. Too little clearance decreases the size of
the wood chips, thus deceasing the ability to cut.
3a. Use a 1/32 inch (0.6 mm) depth gauge jointer and a flat
file (tools not included) to lower the depth gauge to the
correct clearance (Fig. 35).
3b. After lowering the depth gauge, use the flat file to restore
the original rounded shape to the depth gauge (Fig. 36).
Take care not to damage the cutting edges or nearby
links.
Depth gauge clearance
1/32 in. (0.6 mm)
Top plate
Figure 32
Filling angle
Right-hand cutters
Figure 33
Depth gauge
Side plate
Left-hand cutters
Correct Filling angle
80º
Side plate
Figure 34
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 unit 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).
If the oil passages are clear, the saw chain will give off a spray
of oil shortly after it begins to rotate during operation.
MAiNTENANCE
Top plate
30º
Flat file
NOTiCE
26
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