Bucking a log
When bucking a log, (cutting it into lengths)
If log supported on one end (Fig. 29)
If log supported on one end cut 1/3 of the
MAINTENANCE
it is important to make sure your footing is firm and your weight is evenly distributed. In general, try to have the log raised and supported near the cut. Having the log raised and supported near the cut will re- duce binding and kickback.
If bucking log on hill (Fig. 27)
The operator should be on the uphill side of the cut so when the cut off piece rolls, it rolls away from the operator. Do not let the chain come into contact with the ground. Toward the end of the cut reduce cutting pressure, maintain firm grip, and be prepared for log to roll away from the saw and the operator.
Fig. 27
After completing the cut, wait for the saw chain to stop before moving the saw. Al- ways stop the motor before continuing to another tree.
If log supported along entire length (Fig. 28)
If log supported along entire length, such as on the ground, cut from the top (A) roll log over and finish the cut. Rolling the log over and finishing the cut from the top will prevent the cutting into the ground where the dirt and stones will dull the chain.
Fig. 28
A
way through the log from the bottom (A) and finish the cut from the top (B). Cutting this way will make the cut off portion fall away cleanly and easily.
Fig. 29
B
A
If log supported on both ends (Fig. 30)
If log supported on both ends cut 1/3 of the way through the log from the top (A) and finish the cut from the bottom (B). Use ex- tra caution to make sure that the chain saw does not bind up in the cut.
Fig. 30 | A |
B
Under normal usage, your chain saw will require regular inspection and maintenance. Examine the saw for dirt and debris that might prevent safety and
Cleaning guide bar, chain and chain brake
Remove the guide bar and chain after each use or as needed to clean out chips and debris from the sprocket area. Clean guide bar groove, soak in light oil and wipe clean. Clean out chips and debris from the chain brake after each use or as needed. Check the brake for normal operation before each use. See "Cleaning" for further cleaning instructions.
Sharpening chain (Fig. 31 & 32)
Use a 5/32" diameter round file to sharpen cutter links (A).
Fig. 31 | A |
A
•Fig. B shows the link from the front.
•Fig. C shows the link from the top.
Fig. 32
90°
30°
BC
Replacing the chain
To replace the chain, refer to instructions under “Assembly”. Use only
Setting the Depth (Fig. 33)
The front part (A) of the cutter link is de- signed to limit the depth of cut of the tooth.
Fig. 33
A
•If the tooth is limited too much, the chain saw will not cut as effectively as it can.
•If the tooth is not limited enough, the tooth will take too big a bite and contrib- ute to kickback.
File the front of the cutter link so that it is
.025" lower than the cutting tooth.
The Clutch (Fig. 34)
This chain saw is equipped with a disc clutch designed to protect the motor from overload. It has been preset at the factory. The clutch should slip when the saw is bogged down in a cut. If the clutch slips during a normal cut, or does not slip when the saw is bogged down in a cut, adjust it as follows.
1.Engage the brake.
2.Remove the sprocket cover.
3.Note the stamped mark on the flange
(B).
Fig. 34 A B
CD
E
4.Rotate the adjusting bolt flange (A) so that the mark on the flange (B) lines up with the next reference mark on the thrust washer (C).
If the clutch is slipping during a normal cut, tighten the adjusting bolt flange to the next mark clockwise (E).
14 | 15 |
