Snowmobile Arctic Cat 2-Stroke (2007 year). Manual - part 151

9-117

9

MS031

MS026

5. Place the upper shock eyelet with bushings

between the idler arm brackets making sure the

spacer is properly positioned between the brack-

ets. Secure with a cap screw and lock nut. Tighten

securely.

MS027

„NOTE: Do not over-tighten the shock absorber
cap screw as the shock eyelet must be free to
pivot.

0742-145

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

6. Grease the idler arm and rear arm grease fittings

with a low-temperature grease.

7. Install the rear upper idler wheels, rear springs,

and offset pivot idler (see Rear Upper Idler

Wheels/Rear Springs in this sub-section).

Front Arm/Front Arm 

Brackets/Front Shock 

Absorber

„NOTE: The skid frame must be removed for this
procedure (see Removing Skid Frame in this sub-
section), and the rear springs must be removed
from the adjusting cams.

REMOVING

1. Remove the cap screws and lock nuts securing the

limiter straps to the front arm. Account for flat

washers.

ZJ270A

2. Remove the cap screw and lock nut securing the

upper front shock absorber eyelet to the front arm.

Pull the shock eyelet free of the bracket. Account

for a serrated axle.

! CAUTION

Make certain that the shock pivot assembly is prop-
erly positioned prior to securing the shock absorber
to the idler arm.

9-118

ZJ271A

3. Remove the cap screw and lock nut securing the

front arm to the front arm mounting bracket.

ZJ272

4. Remove the lock nut and cap screw securing the

rear shock pivot to the front arm.

ZJ273

5. Remove the front arm and account for the two

front arm bushings.

6. Remove the cap screw securing the front outer

idler wheel to the idler wheel mounting block.

Account for lock nut, cap screw, and flat washer.

ZJ274

„NOTE: Remove the front outer idler wheel from
the side of the slide rail in which the front arm
shock axle cap screw was installed.

7. Remove the cap screw and lock nut securing the

idler wheel mounting block to the slide rail.

8. Remove the cap screws, washer, and lock nut from

the front shock axle; then from one side, tap the

assembly rearward far enough for the axle assem-

bly to clear the slide rails. Account for an axle, two

spacers, and two shim washers.

„NOTE: It is advisable to loosen the front rail sup-
port cap screws enough to gain clearance to
remove the front shock axle.

ZJ275A

MS167

9. Move the rear arm assembly rearward far enough

to gain access to the front arm mounting bracket

lock nuts; then remove the cap screws and lock

nuts securing the brackets to the slide rails.

9-119

9

MS106A

INSPECTING

„NOTE: Whenever a part is worn excessively,
cracked, or damaged in any way, replacement is
necessary.

1. Inspect all front arm weldments for cracks or

unusual bends; then inspect the front arm mount-

ing brackets for cracks and for elongated holes.

2. Closely inspect all tubing for cracks or unusual

bends.

3. Inspect the bearings, bushings, and front arm spac-

ers for wear or damage.

4. Inspect the shock absorber for damage and for any

signs of oil leakage especially at the point where

the shock shaft enters the shock body.

5. Inspect the shock absorber eyelet welds (at each

end) for any cracks, signs of separation, or for

unthreading.

INSTALLING

1. Install the front arm mounting brackets to the slide

rails. Secure with cap screws and lock nuts tight-

ened to specifications.

MS106A

2. Install the axle into the lower shock eyelet bushing

assembly; then install the two spacers and the two

shim washers.

MS167

3. Place the front arm shock axle assembly into posi-

tion on the skid frame making sure the spacers and

washers are properly positioned. Secure with the

cap screw, washer, and a new lock nut. Tighten to

specifications.

„NOTE: If the front rail support cap screws were
loosened (after step 8), treat the threads with blue
Loctite #243 and tighten to specifications.

ZJ275A

4. Position the front arm with bushings into the

mounting brackets. Secure with cap screws and

lock nuts. Tighten to specifications.

„NOTE: Assure that the rear shock pivot is posi-
tioned beneath the front arm prior to securing the
front arm to the mounting brackets.

ZJ272

5. Secure the rear shock pivot to the front arm with

cap screw and lock nut. Tighten to specifications.

9-120

ZJ273

6. Secure the upper shock eyelet and serrated axle in

the mounting hole of the front arm. Secure with a

cap screw and lock nut. Tighten securely.

ZJ271A

„NOTE: Do not over-tighten the shock absorber
cap screw as the shock eyelet must be free to
pivot.

7. Secure the mounting block on the slide rail with a

cap screw and lock nut. Tighten to specifications.

MS009

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

MS009A

8. Secure the idler wheel assembly with a cap screw

and a lock nut. Tighten cap screw to specifications.

MS010

9. Secure the limiter straps to the front arm with cap

screws, washers, and lock nuts. Tighten to specifi-

cations.

ZJ270

Rear Shock Absorber 

and Shock Links

„NOTE: Before removing the skid frame by using
the Rear Suspension Spring Tool (p/n 0144-311),
remove the spring from the adjusting cam.

! CAUTION

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