Snowmobile Arctic Cat (2007 year). Manual - part 116

9-79

9

REMOVING

1. Remove the cap screws, washers, and lock nuts

securing the rear inner idler wheel and the idler

wheel mounting block. Account for all mount-

ing hardware.

MS137

2. Note the location of the flat washer for assembly

purposes.

MS138

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 proce-

dure.

A. Remove the wheel insert (if applicable) and

the snap ring.

B. Using a hydraulic press, press the bearing out

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

E. Install the insert (if applicable).

MS008

INSTALLING

1. Secure the mounting block on the slide rail with

a cap screw and lock nut. Tighten to specifica-

tions.

! CAUTION

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

9-80

MS139

„ NOTE: For proper alignment, it is advisable to
install an idler wheel cap screw into the top mount-
ing block hole prior to tightening.

MS140A

2. Place the idler wheel into position against the

mounting block making sure there is a flat

washer on the cap screw. Tighten to specifica-

tions.

MS141

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 (p/n

0144-311), remove the spring from the adjusting

cam.

AG624DA

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

assembly purposes.

MS142

3. Remove the cap screws securing the offset pivot

idler arm assembly to the idler arm; then remove

the offset pivot arm idler assembly. Account for

a flanged axle, flared bushing, idler spacer col-

lar, and lock nuts.

MS064

! WARNING

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

9-81

9

4. Remove the idler wheel.

„ NOTE: Use Idler Wheel Puller Kit (p/n 0644-122)
to remove the wheel.

MS011

5. Remove the cap screw and flat washer securing

the front outer idler wheel to the mounting block

and remove the idler wheel.

MS002B

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

securing the spring slide to the slide rail.

Account for the spring slide and all mounting

hardware.

MS013A

MS014

7. Remove the spring and sleeve from the idler

arm.

MS145

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

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 proce-

dure.

A. Remove the wheel insert (if applicable) and

the snap ring.

B. Using a hydraulic press, press the bearing out

the inside of the wheel.

! CAUTION

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

9-82

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

E. Install the insert (if applicable).

MS005

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.

MS145

2. Place the spring slide and slide block (with

spring in slide block) into position on the slide

rail. Secure with a cap screw, lock nut, and

washer. Tighten to specifications.

MS014

MS015

3. Install the rear upper idler wheel on the idler

arm.