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model no. 054-5745-0 | contact us: 1.866.523.5218

Maintenance

CAUTION: A dull or improperly sharpened chain can cause

excessive motor speed during cutting, which may result in

severe motor damage.

WARNING: Improper chain sharpening increases the potential

for kickback.

WARNING: Failure to replace or repair a damaged chain can

cause serious injury.

TOP PLATE FILING ANGLE

• CORRECT 30°: file holders are marked with guide marks to align file properly to produce

correct top plate angle.

• LESS THAN 30°: for cross cutting.

• MORE THAN 30°: feathered edge dulls quickly.

• Remove filings from the file with a wire brush.

SIDE PLATE ANGLE

• CORRECT 80°: Produced automatically if you use the correct diameter file in the file holder.

• HOOK: “Grabs” and dulls quickly; increases the potential for KICKBACK. Results from using

a file with a diameter too small or a file held too low.

• BACKWARD SLOPE: Needs too much feed pressure; causes excessive wear to the bar and

chain. Results from using a file with a diameter too large or file held too high.

MAINTAINING DEPTH GAUGE CLEARANCE

• Maintain the depth gauge at a clearance of 0.025” (0.6 mm). Use a depth gauge tool for

checking the depth gauge clearances.

• Every time the chain is filed, check the depth gauge clearance.

• Use a flat file and a depth gauge jointer to lower all gauges uniformly. Use a 0.025” (0.6 mm)

depth gauge jointer. After lowering each depth gauge, restore original shape by rounding the

front. Be careful not to damage adjoining drive links with the edge of the file.

• Depth gauges must be adjusted with the flat file in the same direction the adjoining cutter was

filed with the round file. Use care not to contact cutter face with flat file when adjusting depth

gauges.

Yardworks 054-5745-0 User Manual

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