OREGON
®
GUIDE-BAR MAINTENANCE
6. ● 7. ●
8. ◆ 9. ◆
10.
◆
With chain on the bar, hold a straightedge against the bar body
and against a cutter side plate. A good groove will hold the chain
straight, leaving a small gap between the straightedge and bar body.
A worn grove will let the chain lean until straightedge is flush with bar
body. Replace bar if groove is worn.
11.
◆
On sprocket-nose bars, check for clearance around the bar’s tip
between the tops of rails and the bottoms of cutters or tie straps. Replace
nose sprockets before cutters or tie straps contact the bar rails.
Oil Hole
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