Service Procedure

1. Raise the vehicle on an appropriate hoist.

2. Mark each tire with its mounting location on the vehicle.

3. Remove the wheel bolts and wheel covers on all four wheel and tire assemblies.

4. Remove the four wheel and tire assemblies.

5. Transport the four wheel and tire assemblies to the appropriate tire mounting/dismounting equipment location.

6. Mark the location and size of all tire weights on the side wall of the tire. This will ensure that the tire does not need to be rebalanced.

7. Using a tire valve core and stem tool, unscrew and remove the valve core to deflate the tire.

8. Using the appropriate tire mounting/dismounting equipment, disengage the outer wall of the tire from the wheel in the area of the tire valve stem.





9. Cut and remove the outer portion of the tire valve stem with a pair of diagonal pliers (Figure 1). Use a shop rag or towel to protect the wheel from damage.





10. Reach between tire and wheel and removing remaining portion of the tire valve stem (Figure 2).

CAUTION:
Do not allow the remaining portion of the tire valve to fall into the tire.

11. Using the valve stem inserter tool (Snap-On P.N. VT1A or equivalent), install the new tire valve stem into wheel. Use a shop rag or towel to protect the wheel from damage.

CAUTION:
The new tire valve must be inserted dry with no lubricant applied.

12. Before mounting tire on wheel, make sure the wheel rim bead is clean to ensure a proper seal between the rim and tire.

13. Remount tire to wheel rim using appropriate tire mounting device.

CAUTION:
Be sure that the alignment mark made in Step 6 is still aligned with the outer wheel weight.





14. Inflate the tire to the specified pressure. The specified tire pressures can be found on the vehicle label located on the driver's side outboard seat riser (Figure 3).

NOTE:
If the tire pressure label is missing or unreadable, use the following tire pressures for the appropriate tire size and axle location:

15 Inch Tires
Front Axle: 51 psi
Rear Axle: 70 psi
16 Inch Tires
Front Axle: 55 psi
Rear Axle: 80 psi

NOTE:
Use the front tire pressure specification for the spare tire.

15. Repeat Steps 6 through 11 for all four tire and wheel assemblies removed from the vehicle.

16. Install the wheels on vehicle in the same position from which they were removed. Snug tighten the wheel bolts. Use a cross pattern sequence when tightening the wheel bolts.

WARNING:
Never apply oil or grease to the wheel bolts.

17. Snap the wheel covers onto the wheel bolts.

18. Lower the vehicle.

19. Tighten the wheel bolts to 177 ft-lb (240 N.m) for steel wheel applications. Tighten the wheel bolts to 138 ft-lb (190 N.m) for alloy wheel applications. Use a cross pattern sequence when tightening the wheel bolts.

20. Locate and remove the spare tire and wheel assembly.

> Vehicles with the spare tire mounted under the vehicle:





a. Remove the bolts for the spare tire hold down (Figure 4).

b. Push up on the spare tire carrier and push the hold down hooks to the side, then lower the carrier.

c. Remove the spare tire.

> Vehicles with the spare tire mounted inside the cargo area:

a. Turn the spare tire holder to loosen.

b. Remove the spare tire.

21. Repeat Steps 6 through 14 to replace the tire valve stem on the spare tire.

22. Install the spare tire into the vehicle.

> Vehicles with the spare tire mounted under the vehicle:

a. Place the spare tire onto the spare tire carrier with the valve stem side down to accommodate future pressure checks.

b. Push up on the spare tire carrier and push the hold down hooks back into position to hold the carrier.

c. Install the retaining bolts.

> Vehicles with the spare tire mounted inside the cargo area:

a. Place the spare tire onto the spare tire carrier with the valve stem side of the wheel exposed to accommodate future pressure checks.

b. Tighten the spare tire holder.

23. Return the vehicle to the customer.