Specifications

17730-248 53 Component Replacement

AIRTEK

•

SOFTEK

for Blue Bird Buses

AIRTEK AIR SPRING – 10K

DISASSEMBLY

1. Place the vehicle on level floor.

2. Chock the wheels.

3. Raise the frame.

4. Support the vehicle with frame stands.

WHEN SERVICING THE VEHICLE OR ATTACHING AN AIR SPRING AND THE VEHICLE IS ON THE

GROUND, PRIOR TO AIRING THE SUSPENSION SYSTEM MAKE CERTAIN THE AIR SPRING

LOCATOR IS INDEXED INTO THE UPPER AIR SPRING BRACKET PROPERLY, AND THE AIR

SPRING IS FULLY SEATED ON THE SPRING TOP PAD. FAILURE TO FOLLOW THESE

INSTRUCTIONS CAN RESULT IN PREMATURE AIR SPRING FAILURE, CAUSE PERSONAL INJURY,

OR PROPERTY DAMAGE.

PRIOR TO AND DURING DEFLATION AND INFLATION OF THE FRONT AIR SUSPENSION SYSTEM,

ENSURE THAT ALL PERSONNEL AND EQUIPMENT ARE CLEAR FROM UNDER THE VEHICLE AND

AROUND THE SERVICE AREA, FAILURE TO DO SO CAN CAUSE SERIOUS PERSONAL INJURY,

DEATH, OR PROPERTY DAMAGE.

5. See additional Air Spring Cautions and Warnings in the Important Safety Notice Section

of this publication prior to inflating or deflating the suspension system.

6. Remove the air from the air system by disconnecting the height control valve linkage

at the rubber grommet of the height control valve arm and allow the arm to drop. This

will exhaust air from the system.

IF THE AIR SPRING IS TO BE RE-INSTALLED; INSPECT LOCK-TABS FOR DAMAGE OR CRACKS

PRIOR TO RE-INSTALLATION. CARE MUST BE TAKEN TO REMOVE DIRT AND DEBRIS FROM THE

PUSH-TO-CONNECT FITTING. FAILURE TO DO SO CAN RESULT IN THE PUSH-TO-CONNECT

FITTING FAILING TO SEAL WITH THE AIR LINE.

7. Disconnect the air line to the air spring.

8. Raise the frame to allow for air spring removal.

9. Separate the air spring from the upper air spring bracket by applying downward pres-

sure on air spring, see Figure 9-6, pushing outward on the lock-tabs outside the

bracket, and inward on inlet lock-tabs. This will dislodge the air spring from the upper

air spring bracket.

10. Apply upward pressure between the base of the air spring and the top pad. This will

dislodge the air spring from the top pad, see Figure 9-7.

11. Remove the air spring.

FIGURE 9-6 FIGURE 9-7

SERVICE MANUAL

FRONT AXLE & SUSPENSION

APPENDIX