Sprockets - Oregon CHAINSAW Maintenance And Safety Manual

PRO-LITE
➏
Align the sprocket's innerrace holes with the
holes in the bar nose. Insert rivets into each
hole through the bar. On used bars the nose
rails may tend to spread apart. Use a small
clamp to hold the nose rails together when
inserting and securing the rivets.
➏
With the bar and rivets solidy supported on
a strong, flat metal surface, carefully peen
the rivet heads down with the flat end of a
hammer. Be careful to hit only the rivet head.
Do not hit the bar body-this will pinch the
nose sprocket. Rivet heads must be snug and
secure while still allowing the sprocket to turn
freely.
➐
Grease the new nose sprocket. Clean out guide-bar grease hole
before using lubricant. Pump grease into hole until excess grease
appears around the nose-sprocket teeth of the guide bar.
62.
GUIDE BARS
NOSE SPROCKETS (CONTINUED)
®
GUIDE BARS GUIDE BARS