Snowmobile Arctic Cat (2002 year). Manual - part 153

9-90

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

assembly purposes.

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

securing the offset pivot idler to the upper idler

wheel; then remove the offset pivot idler assem-

bly.

4. Remove the spacer.

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„

NOTE: It may be necessary to use the Idler

Wheel Puller Kit (p/n 0644-122) to remove the
wheel.

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

securing the front outer idler wheel; then remove

the idler wheel.

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6. Remove the cap screw and flat washer securing

the spring slide to the rail. Account for a slide

block and washer.

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

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9

„

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 procedure.

A. Remove the wheel insert 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.

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D. Install the snap ring making sure the “sharp

side” is directed away from the bearing.

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E. Install the insert.

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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.

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

in slide block) into position on the slide rail.

Secure with a cap screw (coated with red Loctite

#271) and washer. Tighten to 3.2 kg-m (23 ft-lb).

„

NOTE: Make sure the spring is located above the

spring slide mounting bolt.

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! CAUTION

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

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3. Install the front outer idler wheel; then secure with

the cap screw, washer, and lock nut. Tighten to

3.2 kg-m (23 ft-lb).

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4. Install the spacer.

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

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6. Making sure the marks made during disassembly

are aligned, install the offset pivot idler to the idler

arm and secure with the cap screws, washers, and

lock nuts. Tighten to 2.6 kg-m (19 ft-lb).

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7. Place the short spring leg onto the adjusting cam

using the rear suspension spring tool.

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9

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 insert from the idler wheel; then

remove the cap screw and large flat washer secur-

ing the outer rear idler wheel. Remove the outer

idler wheel from the shaft.

AG626D

„

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.

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3. Carefully slide the shaft out from the inner idler

wheels and note the position of the spacers and

washers.

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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 all idler wheel inserts (inner and outer) for

any cracks.

3. Inspect the outer rubber portion of the idler wheels

for cracks and poor bonding.

4. Inspect the plastic insert of each idler wheel for

cracks.

5. Inspect the shaft for wear and damaged threads.

6. Inspect all idler wheel bearings. Turn each bearing

(by hand) and if any roughness or binding is noted,

replace the bearing.

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

A. Remove the wheel insert and the snap ring.

! CAUTION

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