Air Spring: Service and Repair

Air Spring Replacement

Removal Procedure

1. Block the wheels of the axle.
2. Drain the air pressure from the air springs.
3. Raise the frame of the vehicle in order to remove the load from the suspension.
4. Support the frame using jack stands.




5. Remove the locknuts (3) and the washers that connect the air spring (1) to the cross channel (2).
6. Remove the air line that connects to the air spring (1).
7. Remove the brass air fittings from the air spring (1).




8. Remove the locknuts (2) and the washers that connect the air spring (1) to the upper frame hanger.
9. Remove the air spring (1).

Installation Procedure




1. Connect the air spring (1) to the air spring frame hanger.




2. Connect the air spring (1) to the cross channel (2).

Notice: Refer to Fastener Notice .

3. Install the washers and the locknuts (3) that connect the air spring to the cross channel.

Tighten the locknuts to 330 Nm (243 lb ft).




4. Install the washers and the locknuts (2) that connect the air spring (1) to the air spring frame hanger.

Tighten the locknuts to 34 Nm (25 lb ft).

5. Install the brass air fitting to the air spring using a Teflon(R) thread seal.
6. Connect the air lines to the air springs.
7. Lower the frame of the vehicle.
8. Unblock the wheels.
9. Refill air into the system.