Drive Belt; Rear Suspension; Drive Train/Track/Brake Systems - Arctic Cat Sno Pro 120 Service Manual

Drive Train/Track/Brake
Systems
This section has been organized into sub-sections for ser-
vicing drive train, track, and brake systems; however,
some components may vary from model to model. The
technician should use discretion and sound judgment
when removing and installing components.
 NOTE: Some illustrations and photographs used in
this section are used for clarity purposes only and
are not designed to depict actual conditions.
 NOTE: Whenever a part is worn excessively, cracked,
or damaged in any way, replacement is necessary.
SPECIAL TOOLS
A number of special tools must be available to the technician
when servicing the drive train, track, and brake systems.
Description
Drive Clutch Bolt Tool
Driven Shaft Bearing Spanner Wrench Kit - Socket
Bearing Removal and Installation Tool
Brake Disc Socket Wrench
Clutch Alignment Bar (Bearcat/F-Series/T-Series)
Clutch Alignment Bar (F/M/XF)
Drive Clutch Puller
Drive Clutch Spanner Wrench
Driven Pulley Compressor Tool
Driven Pulley Puller
Clutch Alignment Bar (Parallelism)
Rear Suspension Spring Tool
Reverse Gear Adjustment Gauge
Roller Pin Removal Tool
Gear Case Drain Fitting
Deep Socket
Brake Caliper Bearing Puller
 NOTE: Special tools are available from the Arctic
Cat Service Parts Department.
CAUTION
Never attempt to substitute any other drive clutch puller for
the recommended puller or severe clutch damage will occur.

Drive Belt

If the drive belt is longer than specified, the drive clutch
and driven pulley will not achieve full shift ratio. This will
result in poor acceleration and a decrease in top speed.
If the drive belt is shorter than specified, the starting ratio
will be higher causing the belt to slip. A too-short drive
belt will cause a bog on engagement and will not allow
the engine to reach peak RPM.
 NOTE: A thinly-worn drive belt may produce the
same effect as one that is too long.
6-2
 NOTE: A stiff belt causes a HP loss to the track. As
a belt warms up, it gets more flexible and transmits
power with less HP loss.
 NOTE: When installing a new drive belt, see After
Break-In Checkup - Drive Belt Break-In in Section 1.
REMOVING
1. With the engine off, open the left-side access panel;
then remove the belt guard. On the F/M/XF, loosen
the 1/4 turn screws on the lower console.
2. Remove the cap screw, lock washer and sheave
adjuster from the end of the driven pulley; then
remove the cap screw, lock washer, and washer from
the adjuster.
 NOTE: Assure that the shims and O-ring are not
removed from the adjuster.
p/n
0644-281
0644-516
0644-167
0644-481
0644-496
0644-428
0744-062
0644-136
0644-444
0644-469
3. On 500, 570, and 1100 cc, reverse the adjuster and
0644-509
install the cap screw without washers into the
0144-311
adjuster. Install the sheave adjuster and cap screw
0644-244 onto the driven pulley; then tighten the cap screw
until the movable sheave opens far enough to allow
0644-276
the belt to be removed.
0644-552
0444-237
4. On 800 cc models, remove the adjuster. Install the
0744-067
large washer from tool kit onto the cap screw; then
tighten the cap screw until the movable sheave opens
far enough to allow the belt to be removed.
5. Remove the drive belt from the driven pulley first;
then from the drive clutch.
INSTALLING
1. Place the drive belt (so the part number can be read)
on the drive clutch; then between the sheaves of the
driven pulley.
2. Install the sheave adjuster in its original position
(beveled side out); then install the cap screw, lock
washer, and washer into the driven pulley. Tighten
the cap screw to 32 ft-lb (Bearcat/F-Series/T-Series)
or 20 ft-lb (F/M/XF).
Do not apply Loctite to the driven pulley cap screw or
component damage may occur.
3. Install the belt guard; then close the left-side access
panel.
CAUTION
0743-395