Machine Maintenance
Drive Sprocket Rollers
Rubber Track Loaders use rollers on
each drive tooth of the two drive sprock-
ets. These rollers help minimize friction
between lugs on the track and the
sprocket. Sprocket rollers should be
treated as wear items that are inspected
regularly and replaced as needed.
The rollers rotate on steel pins, limit-
ing wear to the inside of the rollers. As
they wear, the rollers become thinner,
but will continue to function and per-
form as long as they are rotating.
Visually inspect rollers every 50 hours
and replace any that show signs of
cracking or wear-through.
Rollers can be replaced without
removing the track. Simply remove the
bolt (1) holding the steel pin (2) and the
roller (3) in place. Install a new roller
over the steel pin and re-install the pin
and roller into the sprocket. Normally,
two rollers can be replaced before the
sprocket needs to be rotated.
21
!WARNING!
Make sure the machine is turned
off, the key removed and the
battery disconnected before performing this
procedure.
Steel Pin
New Roller
Normal Roller Wear
at 50% life
2
1
3
