CHAIN SAW CHAIN TENSION ADJUSTMENT

TM 5-2420-224-10

c. Hold file handle down 10 degrees and make a few firm strokes away from chain (1). Sharpen cutter top plate

cutting angle of 85 degrees, top plate filing angle of 30 degrees, and side plate angle of 60 degrees.

d. Move to other side of chain (1) and file all opposite cutters to complete chain sharpening. Make sure all cutters

are filed uniformly.

e. Set depth gage (P/N 11298) on chain (1) after every third or fourth sharpening. If depth gage extends above slot,

file level with flat file (P/N 11294).

f. After lowering depth gage, round off front edge to original shape.

3-9. CHAIN SAW CHAIN TENSION ADJUSTMENT

WARNING

Never replace or adjust chain with operating pressure on tool. To do so could

result in personal injury.

Chain cutters are sharp. Wear protective gloves when removing, installing, or

adjusting chain. Failure to do so could result in personal injury.

New chains will require frequent adjustments until broken in. Make sure

automatic oiler is working properly by ensuring presence of oil on chain bar.

Failure to do so may result in injury to personnel.