2020 Oregon Catalog

Saw Chain

Cutter and Tie Strap Wear

Edges burred and notch peened on tie straps

Severe damage on either side of top and/or side plates

Cause Chain chatter due to loose chain tension and improper filing Solution Correct chain tension. Refile chain properly. Replace sprocket if badly worn OREGON

Cause Cutters hit abrasive materials Solution File cutters to remove all damage

OREGON OREGON

OREGON O

OREGON

Peened notch in tie strap causing tight joints and broken drive links

Peening on front corner of cutters and intermediate tie straps – causes tight joints

Cause Chain run on badly worn spur sprocket or wrong pitch sprocket Solution Replace worn sprocket. Chain may need replac- ing

Cause Chain striking bar entry. Sprocket too small or loose chain tension Solution Use proper bar and sprocket. Adjust chain tension correctly

OREGON

Peening on bottom of cutters and tie strap – causes tight joints

Excessive wear on bottom of cutters and tie straps

Cause Loose chain tension. Result of dull cutters and forcing

Cause Depth gauges too high. Cutting edge cannot get into wood Solution Lower depth gauges to proper setting. Keep cutters filed correctly

dull chain into wood Solution

OREGON OREGON

OREGON

Keep proper tension. Keep cutters sharp. Chain may need replac- ing

Cracks under rear rivet holes on cutters and opposing tie straps

Concave wear on bottom of cutters – connecting tie straps

Cause Excessive pressure on dull or misfiled cutters – common during winter Solution File chain correctly. Use oil freely OREGON E

OREGON

Causes Chain tension too tight Normal wear from undercutting (cut- ting with top of bar)

Solution Adjust chain tension Reduce cutting with top of bar

Blunt depth gauge causes rough cutting

Uneven depth gauge height Chain won’t cut straight

Cause Uneven filing Solution

Cause Improperly filed depth gauge Solution Round off front corner to maintain original shape

Use correct depth gauge jointer to lower gauges evenly

Saw Chain

FOR 154

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