Snowmobile Arctic Cat 2-Stroke (2007 year). Manual - part 150

9-113

9

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.

0742-160

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 idler wheels for cracks, damage, or

poor bonding of the outer rubber portion.

4. Inspect the shaft for wear and damaged threads.

5. Inspect all idler wheel bearings. Turn each bearing

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

replace the bearing.

6. 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

ASSEMBLING

742-160A

1. In order from the right-hand side, slide the axle

through the slide rail axle slot; then place a bush-

ing (A), inner idler wheel (B), rear idler wheel

spacer (C), inner idler wheel (D), and bushing (E)

on the axle. Slide the axle through the opposite

slide rail axle slot.

2. Place the plastic adjuster bushings on the axle (on

the outside of each axle slot); then install the outer

idler wheels on the axle and secure with two cap

screws (coated with blue Loctite #243) and large

flat washers. Tighten cap screws only until snug.

! CAUTION

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

9-114

ZJ266

FC194

„NOTE: It is advisable to tighten the rear idler
wheel axle only until snug until the skid frame has
been installed and track tension has been
adjusted; then the axle assembly must be tight-
ened to specifications.

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

this sub-section).

4. Adjust track alignment (see Track Alignment in

this sub-section).

5. Adjust track tension deflection (see Track Tension

in this sub-section).

Rear Arm/Idler Arm

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

DISASSEMBLING

1. Remove the rear upper idler wheels and springs

(see Rear Upper Idler Wheels/Rear Springs in this

sub-section).

MS011

2. Remove the cap screw and lock nut securing the

upper shock eyelet to the idler arm. Account for a

spacer, cap screw, and lock nut.

MS024A

„NOTE: Mark the hole that the upper shock links
are mounted in for assembly purposes.

MS025

3. Remove the cap screw and lock nut securing the

upper shock links to the idler arm. Account for a

cap screw, lock nut, spacer, and axle links.

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9

MS026

MS031

4. Remove the cap screw and lock nut securing the

rear arm to the slide rail. Account for the serrated

axles and axle tube.

ZJ268A

„NOTE: To remove the rear arm, it may be neces-
sary to loosen the rear arm limiter.

ZJ269A

5. Remove the cap screw and lock nut securing the

rear arm to the idler arm. Account for the alumi-

num axle and bushing assemblies.

MS029A

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 each idler wheel for cracks or damage.

3. Inspect the bushings (located in the arm pivot

area) for wear or damage.

4. Inspect all welds and the tubing of the rear arm/

idler arm for cracks or unusual bends.

5. Inspect the two adjusting cams for damage.

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

check for binding or roughness.

7. 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.

! CAUTION

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

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MS006A

D. Install the snap ring making sure the “sharp

side” is directed away from the bearing.

MS007A

ASSEMBLING

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

minum axle, bushing assemblies, and two cap

screws (coated with blue Loctite #243). Tighten

only until snug.

MS029A

2. Place the rear arm assembly into position between

the slide rails. Secure with a cap screw and lock

nut. Tighten to specifications.

MS157

3. With the rear arm secured to the slide rails, place a

support beneath the rear arm; then tighten the two

cap screws (from step 1) to specifications.

MS033

„NOTE: If the rear arm limiter was loosened (after
step 4 of disassembling), treat the threads of the
cap screw with blue Loctite #243 and tighten to
specifications.

MS158

4. Position the shock links in the appropriate holes of

the idler arm brackets (see Chassis and Skid Frame

Mounting Locations in this section). Place a

spacer between the center of the brackets; then

place a flat washer on the cap screw. Insert the

axle links into the upper shock link eyelets; then

insert the cap screw through the eyelets. Secure

with a cap screw and lock nut. Tighten securely.