Sharpening the Chain (cont.)
Correct Filing Technique
Correct angle on | Slightly protruding hook |
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top plate | or point (curve on non- |
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| chisel chain) |
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Additional Safety Precautions
WARNING!
DESCRIPTION
MAINTENANCE
Top of depth |
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gauge at correct | |
height below top |
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| plate | Keep all cutter lengths equal |
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| Front of depth |
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gauge rounded |
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Filing Problems
Top plate angle | Cause | Top plate angle | Cause |
less than | File held at less than | more than | File held at more than |
recommended | recommended angle. | recommended | recommended angle. |
| Result |
| Result |
Slow cutting. Requires extra | Cutting angle is very sharp | ||
30° | effort to cut. | 60° | but will dull fast. Cutting |
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| Remedy |
| action rough and erratic. |
| File cutters to recommended |
| Remedy |
| angle. |
| File cutters to recommended |
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| angle. |
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Hook in side | Cause | Backslope on | Cause |
plate cutting | File held too low or the file | side plate | File held too high or the file |
edge | was too small. | cutting edge | was too large. |
| Result |
| Result |
| Rough cutting. Chain grabs. |
| Cutters won’t feed into wood. |
| Cutters dull quickly or won’t |
| Slow cutting. Must force |
| hold a cutting edge. |
| chain to cut. Causes |
Remedy | excessive bottom wear. | ||
| File cutters at recommended |
| Remedy |
| angle. Check file size. |
| File cutters at recommended |
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| angle. Check file size. |
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High depth | Cause | Low depth | Cause |
gauge | Depth gauge never filed. | gauge | Wrong gauge setting or no |
| Result |
| gauge used. |
| Slow cutting. Must force |
| Result |
| chain to cut. Will cause |
| Rough cutting. Chain grabs. |
| excessive wear on the cutter |
| Saw won’t pull chain through |
heel. | wood. Excessive wear on the | ||
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| Remedy |
| cutter heel. |
| Lower gauges to recom- |
| Remedy |
| mended setting. |
| If depth gauges are too low, |
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| the chain is no longer |
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| serviceable. |
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NOTE:
These safety precautions are intended primarily for consumers or occasional users. When using this chain saw for logging purposes, refer to: CFR Section 1910. 266 (5); 2.5.1 of the American National Safety Standard; Requirements for Pulp- wood Logging ANSI
■Never operate this chain saw with one hand!
■Wear safety footwear,
■Do not allow other persons to be near the chain saw when starting or running the chain saw. Keep bystanders and animals out of the work area.
■Never allow young children or any person unfamiliar with chain saws to operate this saw!
■Clear the work area before using the saw. Never start cutting until you are sure you have a secure footing and have planned a retreat path from the falling tree.
■Before starting the saw engine, make sure nothing is touching the saw chain.
■Keep all parts of your body away from the saw chain whenever the engine is running!
■Stop the engine before carrying the saw. Carry the saw with the engine stopped, the guide bar and saw chain pointing to the rear, and the engine muffler away from your body.
■Never operate this chain saw if you are fatigued.
■Stop the engine before setting the chain saw down.
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