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 (1) rotate on steel pins (2),
limiting wear to the inside of the rollers.
As they wear, the rollers become thinner,
but will continue to function and perform
as long as they are rotating.
Visually inspect rollers every 50 hours
and replace any that show signs of
cracking or wear-through.
In order to replace sprocket rollers, the
drive sprocket must be removed from
the undercarriage. Track removal is rec-
ommended and makes the replacement
process more efficient, but is not
required. For specific instruction regard-
ing roller replacement, consult your
machine specific service manual.
Fuse Panel
The electrical systems in PT machines
are equipped with fuses that help to pro-
tect the electrical components from dam-
age. They are found in the fuse panel
which is located on the left side of the
engine compartment.
In the event of an electrical malfunction,
check the fuse panel. Remove the fuse
related to the component that is not
working properly and inspect it. If it
appears damaged in any way, replace it.
21
Steel Pin
New Roller
Normal Roller Wear
at 50% life
2
1
M
MA
AC
CH
HIIN
NE
E M
MA
AIIN
NT
TE
EN
NA
AN
NC
CE
E
Replace fuses with correct amperage fuse
only. A fuse with a lower amp rating will fail
more easily whereas one of a higher rating
may cause electrical system damage.
CAUTION