Snowmobile Arctic Cat (2008 year). Manual - part 114

7-16

MS210A

MS210B

2. Place the idler wheel and axle assembly into posi-

tion between the slide rails. Tighten to 50 ft-lb.

MS211

Rear Upper Idler 

Wheels/Rear Springs

„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.

MS063

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

purposes.

MS142

3. Remove the cap screws securing the pivot arm to

the idler arm; then remove the pivot arm assembly.

Account for a flanged axle, washer, flared bush-

ings, idler spacer collar, and lock nuts.

MS064

4. Using Idler Wheel Puller Kit, remove the wheel.

! WARNING

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

7-17

7

MS065

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

securing the spring slide to the rail. Account for a

slide block and washer.

MS067A

MS068

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

MS069

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

CLEANING AND INSPECTING

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

1. Clean the bearing with a clean cloth.

2. Inspect each idler wheel and plastic hub for cracks

or damage.

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

inspect for binding or roughness.

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

A. Remove the wheel insert (if applicable) and the

snap ring.

B. Using a hydraulic 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.

! CAUTION

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

7-18

MS007A

E. Install the insert (if applicable).

MS008

5. Inspect the spring, spring slide, sleeve, washers,

slide block insert, and shaft area for wear.

6. Inspect the adjusting cams and arms for cracks.

INSTALLING

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

MS069

2. Place the slide spacer and slide block (with spring

in slide block) into position on the slide rail.

Secure with a cap screw, flat washers, and lock

nut. Tighten to 20 ft-lb.

„NOTE: Make sure the spring is located above
the spring slide mounting bolt.

MS070

MS068

MS071

3. Using a suitable driving tool, install the rear upper

idler wheel on the idler arm.

MS074

7-19

7

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

MS064

5. Place the flared bushings 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.

6. 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 40 ft-lb.

MS146A

„NOTE: When tightening the pivot arm lock nuts,
tighten the lower lock nut first or binding may
occur.

7. Install the skid frame (see Installing Skid Frame in

this sub-section).

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

Rear Axle and

Idler Wheels

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

DISASSEMBLING

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

„NOTE: The large flat side of the wheel insert is
positioned next to the inner plastic adjuster bush-
ing. The idler wheel must be installed with the
wheel insert properly positioned.

2. Loosen the track adjusting bolts. Slide the outer

adjuster bushings off the axle.

MS020

! 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.