Snowmobile Arctic Cat 2-Stroke (2007 year). Manual - part 149

9-109

9

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. Secure the mounting block on the slide rail with a

cap screw and lock nut. Tighten to specifications.

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

ZJ265A

2. Place the idler wheel into position against the

mounting block making sure there is a flat washer

on the cap screw. Tighten to specifications.

3. Place the spring slider block into position and

tighten to specifications; then install the spring

onto the adjusting cam.

ZJ263A

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.

! WARNING

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

9-110

MS142

3. Remove the cap screws securing the offset pivot

idler arm assembly to the idler arm; then remove

the offset pivot idler arm assembly. Account for a

flanged axle, flared bushing, idler spacer collar,

and lock nuts.

MS064

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, flat washer, and lock nut

securing the spring slide to the slide rail. Account

for the spring slide and all mounting hardware.

ZJ263A

MS014

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

MS145

„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 for cracks, damage, or

poor bonding of the outer rubber portion.

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

inspect for binding or roughness.

9-111

9

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

A. Remove the bearing snap ring.

B. Using a suitable 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

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 and washer. Tighten to

specifications.

MS014

ZJ263A

3. Install the rear upper idler wheel on the idler arm.

AG545D

! CAUTION

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

9-112

MS072A

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

MS064

5. Place the flared bushing with a thin flat washer

through the notched side of the offset pivot idler

arm assembly.

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

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

of the offset pivot idler arm assembly. Secure the

offset pivot idler arm to the idler arm with cap

screws and lock nuts. Tighten to specifications.

MS146A

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

MS019B

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

2. Loosen the track adjusting bolts. Slide the outer

adjuster bushings off the axle.

! 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.