Snowmobile Arctic Cat (2008 year). Manual - part 139

7-116

INSPECTING

„NOTE: Whenever a part is worn excessively,
cracked, or damaged in any way, replacement is
necessary.

1. Inspect the pad and retaining brackets for damage

or wear.

2. Inspect the rivet holes in the slide rail for damage

or elongation.

INSTALLING

1. Place the front pads and retaining brackets into

position on the slide rail.

2. Secure the front pads with rivets.

AG531D

3. Place the rear pads into position on the slide rails.

4. Secure the rear pads with the torx-head screws.

MS117A

Rear Arm/Rear Shock 

Pivot Assembly

„NOTE: The skid frame must be removed for this
procedure (see Removing Skid Frame in this sub-
section).

REMOVING

1. Using the Rear Suspension Spring Tool, remove

the spring from the adjusting cam.

TZ002A

2. Mark the pivot arm and the idler arm for assembly

purposes.

TZ003

3. Loosen the cap screws and lock nuts securing the

pivot arm assembly to the idler arm; then remove

the pivot arm assembly. Account for a flanged

axle, idler spacer, and washer.

TZ004A

! WARNING

Care must be taken when removing the spring or
damage or injury could result.

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7

FZ036

4. Remove the idler wheel.

„NOTE: Use Idler Wheel Puller Kit to remove the
wheel.

TZ005

5. Remove the cap screw, flat washers, and lock nut

securing the spring slide and overload spring to the

slide rail. Account for the spring slide and all

mounting hardware.

TZ007A

„NOTE: If the overload spring is being removed,
use a punch to drive the bushing out from the back
side of the slide rail and remove the spring.

TZ006A

TZ008

6. Remove the spring and sleeve from the idler arm.

TZ009

„NOTE: Use the same procedure for the other
side.

7. Remove the cap screw and lock nut securing the

upper shock eyelet to the idler arm; then remove

the cap screw and lock nut securing the upper

shock links to the idler arm. Account for the cap

screws, lock nuts, and sleeves.

7-118

TZ010A

TZ011A

„NOTE: For assembling purposes, note the
mounting location of the shock links to the idler
arm.

8. Remove the cap screw and lock nut securing the

rear shock pivot/idler wheel assembly to the slide

rails; then remove the assembly and account for

the axle, axle spacers, and shim washers (if appli-

cable).

TZ012A

9. Remove the cap screw and lock nut securing the

rear arm shock absorber and shock links to the rear

shock pivot. Account for the cap screws, lock nuts,

and sleeves.

TZ013A

TZ014

10. Remove the cap screws securing the idler arm to

the rear arm. Account for the aluminum axle.

TZ015A

11. Remove the cap screw and lock nut securing the

rear arm to the slide rail. Account for the bushings

and axle tube.

TZ016A

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7

CLEANING AND INSPECTING

„NOTE: Whenever a part is worn excessively,
cracked, or damaged in any way, replacement is
necessary.

1. Clean the bearings with a clean cloth.

2. Inspect each idler wheel for cracks or damage.

3. Inspect the bushings (located in the arm pivot

area) for wear or damage.

4. Inspect all welds and the tubing of the rear arm/

idler arm for cracks or unusual bends.

5. Inspect the two adjusting cams for damage.

6. Rotate the idler wheel bearings (by hand) and

check for binding or roughness.

7. If a bearing must be replaced, use this procedure.

A. Remove the bearing snap ring.

B. Using a suitable press or suitable driving tool,

remove the bearing from the inside of the

wheel.

C. Press the new bearing (on its outer race) into

the idler wheel.

MS006A

D. Install the snap ring making sure the “sharp

side” is directed away from the bearing.

MS007A

INSTALLING

1. Place the rear arm assembly into position between

the slide rails. Secure with a cap screw and lock

nut. Tighten to 40 ft-lb.

TZ016A

2. Install the rear arm onto the idler arm with an alu-

minum axle and two cap screws. Tighten to 40 ft-

lb.

TZ015A

3. With the sleeves installed, install the shock

absorber and links to the mounting hole of the rear

shock pivot with cap screws and lock nuts. Tighten

securely.

„NOTE: The shock absorber and links must be
secured to the rear shock pivot before installing to
the slide rails.

! CAUTION

Do not remove the bearing unless it is absolutely
necessary. The bearing will be damaged during
removal.