Content .. 125 126 127 128 ..

Snowmobile Arctic Cat 2-Stroke (2007 year). Manual - part 127

9-21

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 (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

ASSEMBLING

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

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

ing, inner idler wheel with insert (if applicable),

and long spacer with a flat washer on the axle.

Slide the axle through the opposite slide rail axle

slot. Place the plastic adjuster bushings on the axle

(on the outside of each axle slot).

MS022

NOTE: Make sure the slot in the adjuster bushing
is aligned directly with the adjusting bolt.

MS058A

2. Place the outer idler wheels on the axle (with the

large flat of the insert directed inward) 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.

9-22

MS212

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).

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

4. Adjust track alignment (see Track Alignment in

this sub-section).

5. Adjust track tension deflection (see Track Tension

in this sub-section).

Idler Arm/Rear 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, lock nut, and bushings.

MS024A

AG553D

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

lock nut, spacer, flat washers, and axle links.

9-23

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.

MS012A

NOTE: If applicable, note the mounting hole from
which the rear arm was removed for assembly pur-
poses.

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

MS012B

MS028

5. Remove the two cap screws securing the rear arm

to the idler arm. Account for the aluminum axle

and bushing assemblies.

MS029A

MS030

9-24

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 upper 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.