Snowmobile Arctic Cat 2-Stroke (2007 year). Manual - part 160

9-153

9

FS141

2. While holding the end cap; unscrew the air

chamber.

FS142

„ NOTE: The air chamber should only be hand-
tight.

3. Drain the oil from the air chamber.

FS143

4. Remove the air chamber from the bottom of the

shock body.

FS144

5. Using a pick, remove the nylon pellet from the

nitrogen bladder.

FS145A

6. Using a 3/16-in. Allen-wrench, loosen the nitrogen

bladder ½ turn.

FS146

7. Using Inflation Needle (p/n 0744-020), remove all

the nitrogen from the shock.

9-154

FS147

8. Using a 5/64-in. Allen-wrench, remove the set

screw from the bearing cap.

FS148

9. Using a magnet on an Allen-wrench, remove the

check ball. 

FS149

10. Using Spanner Wrench (p/n 0644-453), loosen the

bearing cap.

FS150

11. Remove the shock rod/piston assembly from the

shock body.

FS151

12. Drain the oil from the shock body into a suitable

container.

13. Using Floating Piston Removal Tool (p/n 0644-

402), remove the floating piston.

FS152

„NOTE: For ease in removing the piston, use the
inflation needle to help vent the shock body.

9-155

9

FS153

14. Clean and inspect all components.

ASSEMBLING/CHARGING

1. Lubricate the O-ring and wiper on the floating pis-

ton with shock oil.

FS154

2. Carefully install the floating piston into the shock

body until it is below the threads.

FS155

3. Using Floating Piston Installation Tool (p/n 0644-

402), install the floating piston while using the

inflation needle to vent the shock body.

„NOTE: Refer to the 2007 Rebuildable Shock
Specifications sub-section in this section.

FS156

4. Using standard Arctic Cat Shock Oil, fill the shock

body to the bottom of the threads; then, allow to sit

1-2 minutes to ensure no air is in the oil.

FS157

5. Lubricate the O-ring on the underside of the end

cap with shock oil.

FS158

6. Lower the shock rod into the shock body until the

piston is submerged in oil.

9-156

FS159

7. While keeping the shock rod fully extended,

thread the bearing cap into position.

FS160

8. Using Spanner Wrench (p/n 0644-453), tighten the

bearing cap.

FS161

„NOTE: When tightening the bearing cap, note air
and excess oil being bled from the hole in the cap.

FS150A

9. Install the check ball and set screw into the bearing

cap.

FS162

FS163

10. Charge the shock with nitrogen to 200 psi.

FS164

11. Using a 3/16-in. Allen-wrench, tighten the

nitrogen bladder.