Snowmobile Arctic Cat (2008 year). Manual - part 134

7-96

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 32 ft-lb.

FZ043

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

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

lb.

FZ044

3. With the sleeves installed, install the shock

absorber link to the lower mounting hole of the

rear shock pivot; then install the shock absorber

with cap screws and lock nuts. Tighten securely.

FZ041B

! CAUTION

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

7-97

7

FZ041A

0742-877

4. With the sleeves installed, install the shock

absorber link to the lower mounting hole of the

idler arm along with the cap screw and lock nut;

then secure the shock absorber to the idler arm

with cap screws and lock nuts. Tighten securely.

FZ040B

FZ040A

„NOTE: Do not over-tighten the shock absorber
cap screw as the shock eyelet must be free to
pivot.

„NOTE: It is advisable to install the rear arm
springs onto the adjuster blocks after the skid
frame has been installed.

5. Slide the sleeve and spring onto the idler arm.

MS145

6. Place the spring slide and slide block (with spring

in slide block) into position on the slide rail.

Secure with a cap screw and washer. Tighten to 20

ft-lb.

MS014

! CAUTION

When installing the shock absorber link, note that
the offset of the link is directed away from the rear
arm shock absorber.

7-98

FZ045

7. With a suitable driving tool, install the rear upper

idler wheel on the idler arm.

FZ046

MS072A

8. Install the idler spacer collar onto the idler arm.

FZ047

9. Place the flared bushing with a thin flat washer

through the notched side of the pivot arm assem-

bly.

„NOTE: If the flared bushing in the pivot arm is
loose, it must be cleaned and green Loctite #609
must be applied to it prior to installation.

10. Align the marks on the idler arm to the centerline

of the pivot arm assembly. Secure the pivot arm to

the idler arm with cap screws and lock nuts.

Tighten to 18 ft-lb.

FZ048A

„NOTE: When tightening the pivot arm lock nuts,
tighten the lower lock nut first or binding may
occur. Make sure the flared side of the bushing is
directed outward.

FZ048B

11. Grease the idler arm and rear arm grease fittings

with a low-temperature grease.

! CAUTION

When driving the idler wheel onto the idler arm, use
a tool to contact the inside race of the bearing or
damage to the wheel or bearing may occur.

7-99

7

Rear Axle and Slide Rail 

Idler Wheels

DISASSEMBLING REAR AXLE

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

1. Remove the cap screw and large flat washer secur-

ing the outer rear idler wheel. Remove the outer

idler wheel from the shaft.

FC194

2. Loosen the track adjusting bolts. Slide the outer

adjuster bushings off the axle.

ZJ266

3. Carefully slide the shaft out from the slide rails

and inner idler wheels. Account for the rear idler

wheel spacer and adjuster bushings.

0742-873

REMOVING SLIDE RAIL IDLER 
WHEELS

„NOTE: The skid frame does not have to be
removed for this procedure.

1. Remove the cap screw and lock nut securing the

idler wheel to the idler wheel mounting block;

then remove the cap screw and lock nut securing

the mounting block to the slide rail.

FZ029A

FZ030A

2. Account for a flat washer from the idler wheel cap

screw.

CLEANING AND INSPECTING

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