Operating Precautions
Correct Filing Technique
Correct angle on | Slightly protruding hook or point |
top plate | (curve on |
SAFETY
Top of depth
gauge at correct height below top plate
A 
A=B 
B
0.020"
Front of depth gauge rounded
Keep all cutter lengths equal
Figure 3
CAUTION!
■ Always maintain the P231 | ■ When transporting the pruner in | |
pole pruner according to the | a vehicle, tie it down securely to | |
this owner’s manual and | prevent damage and fuel | |
follow the recommended | spillage. | |
scheduled maintenance. | ■ Always clear your work area of | |
■ Never modify or disable any of | ||
trash or hidden debris to help | ||
the pole pruner’s safety | ensure good footing. | |
devices. | ■ Keep the saw chain sharp and | |
■ Always use genuine | ||
properly adjusted. | ||
Shindaiwa parts and accesso- | ■ Keep the pruner as clean as | |
ries when repairing or main- | ||
possible. Keep it free of loose | ||
taining this unit. | ||
vegetation, mud, etc. | ||
■ Do not make unauthorized | ||
■ Make sure the scabbard is | ||
modifications or substitutions | ||
in place when transporting the | ||
to the guide bar or chain. | ||
pruner. | ||
■ Never allow the engine to run | ||
■ When carrying by hand, the | ||
at high RPM without a load. | ||
chain should be pointing | ||
Doing so could damage the | ||
backward. See Figure 3. | ||
engine. | ||
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Filing Problems
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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. | |||||||||
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| Result |
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| Result |
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| Slow cutting. Requires |
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| Cutting angle is very |
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| extra effort to cut. | 50¡ |
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| sharp but will dull fast. |
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| 20¡ |
| Remedy |
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| Cutting action rough and | |
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| File cutters to recom- |
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| erratic. |
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| mended angle. |
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| Remedy |
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| File cutters to |
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| recommended angle. |
Hook in side | Cause | Backslope on | Cause | |||||||||
plate cutting | File held too low or the | side plate | File held too high or the | |||||||||
edge | file was too small. | cutting edge | file was too large. | |||||||||
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| Result |
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| Result |
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| Rough cutting. Chain |
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| Cutters won’t feed into |
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| grabs. Cutters dull quickly |
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| wood. Slow cutting. Must |
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| or won’t hold a cutting |
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| force chain to cut. Causes |
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| edge. |
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| excessive bottom wear. |
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| Remedy |
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| Remedy |
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| File cutters at recom- |
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| File cutters at recom- |
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| mended angle. Check file |
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| mended angle. Check file |
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| size. |
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| size. |
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High depth | Cause | Low depth | Cause | |||||||||
gauge | Depth gauge never filed. | gauge | Wrong gauge setting or | |||||||||
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| Result |
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| no gauge used. |
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| Slow cutting. Must force |
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| Result |
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| chain to cut. Will cause |
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| Rough cutting. Chain |
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| excessive wear on the |
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| grabs. Saw won’t pull |
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| cutter heel. |
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| chain through wood. |
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| Remedy |
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| Excessive wear on the |
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| Lower gauges to |
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| cutter heel. |
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| recommended setting. |
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| Remedy |
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| If depth gauges are too |
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| low, the chain is no |
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| longer serviceable. |
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MAINTENANCE
8 | 29 |
