Specifications

Component Replacement 56 17730-248

AIRTEK

•

SOFTEK

for Blue Bird Buses

10. Remove the ¾" upper air spring locknut from the air spring bracket.

11. Remove the air spring.

ASSEMBLY

1. Compress the air spring and slide into vertical position.

2. There is a locating ½" stud and ¾" threading stud on top of the air spring.

3. There are two studs on the bottom of the air spring. Guide studs through the air spring

bracket and properly seat the lower air spring piston into the top axle pad. Secure the

½" locknut to the piston, see Figure 9-10.

FIGURE 9-10

4. Tighten the ¾" upper air spring locknuts to vehicle manufacturer's specifications and

the lower ½" lower air spring locknuts to 20-30 foot pounds.

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. Install the air line into the air spring.

7. Air up the suspension.

8. Check the air spring for leaks.

9. Check the ride height and adjust if necessary. See Alignment & Adjustments Section of

this publication for the proper ride height adjustment.

10. Remove the wheel chocks.

APPENDIX

SERVICE MANUAL