Oregon Harvester - Replacing Nose Sprockets with Replacement Nose Kits on; RH, SM, and SN Harvester Guide Bars

Guide Bar
81 Mechanical Timber Harvesting Handbook
Sprocket Nose Replacement Nose: RH, SM, and SN Guide Bars
Replacing Nose Sprockets with Replacement Nose
Kits on RH, SM, and SN Guide Bars
1. Using the Oregon heavy-duty
chain breaker #24548, break
out the bar tip attachment
rivets.
2. Using the heavy-duty chain
breaker #24548, break out the
remaining rivets. Use a punch
narrow enough to keep from
damaging the rivet holes in the
nose of the guide bar.
3. Remove the old nose. Clean the guide bar’s attachment area.
Insert the rivets through the underside of the nose.
4. With the guide bar
body, nose, and rivet
solidly supported on a
strong flat metal surface,
peen the rivet’s head
down with the flat end of
a hammer. Do not hit the
guide bar body; hit only
the rivet head. To check
installation, grip the guide
bar body in one hand and
twist. The nose and body
should feel like a single,
solid piece. If you feel any
movement in the nose guide bar joint area, or if you hear any
clicking sounds from the same area, tighten the rivet with a
few more hammer strokes.