MAINTENANCE
WARNING:
Failure to replace or repair damaged chain can cause serious injury.
WARNING:
The saw chain is very sharp, always wear protective gloves when performing maintenance to the chain failure to do so may result in serious personal injury.
CORRECT TOP PLATE
FILING ANGLE
30°
INCORRECT TOP PLATE FILING
ANGLE
LESS | MORE |
THAN 30° | THAN 30° |
Fig. 36
TOP PLATE FILING ANGLE
See Figure 36.
nCORRECT 30° - File holders are marked with guide marks to align file properly to produce correct top plate angle.
nLESS THAN 30° - For Cross Cutting.
nMORE THAN 30° - Feathered Edge Dulls Quickly.
SIDE PLATE ANGLE
See Figure 37.
nCORRECT - 80o Produced automatically if correct diam- eter file is used in file holder.
nHOOK - “Grabs” and dulls quickly. Increases potential of KICKBACK.
Results from using a file with diameter too small, or file held too low.
nBACKWARD SLOPE - Needs too much feed pressure, causes excessive wear to bar and chain.
Results from using a file with diameter too large, or file held too high.
DEPTH GAUGE CLEARANCE
See Figure 38.
nThe depth gauge should be maintained at a clearance of
.025 in. Use a depth gauge tool for checking the depth gauge clearances.
nEvery time the chain is filed, check the depth gauge clear- ance.
CORRECT SIDE | INCORRECT SIDE PLATE | |
PLATE FILING | FILING ANGLE | |
ANGLE |
|
|
| HOOK | BACKWARD |
|
| SLOPE |
80° |
|
|
Fig. 37
RAKER CLEARANCE
.025 in. (0.6 mm)
Fig. 38
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