Specifications

17730-248 63 Component Replacement
AIRTEK
®
•
SOFTEK
®
for Blue Bird Buses
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.
3. See additional Air Spring Cautions and Warnings in the Important Safety Notice Section
of this publication prior to inflating or deflating the suspension system.
4. Install air lines into the air springs.
5. Install the height control valve linkage and inflate the suspension to normal ride height.
6. Tighten M20 locknuts to vehicle manufacturer's specifications.
7. Remove the wheel chocks.
SOFTEK THRUST WASHERS (If Equipped)
DISASSEMBLY
1. Place the vehicle on level floor.
2. Chock the wheels.
3. Raise the frame.
4. Support the vehicle with frame stands.
5. Suspend the front axle from the shocks.
6. Remove the M20 spring eye and shackle pivot bolts, washers and locknuts.
7. Remove the shackle plates and thrust washers (if equipped).
ASSEMBLY
1. Install the NEW thrust washers (if equipped) and shackle plates with the M20 bolts,
washers and locknuts, see Figure 9-16.
2. Remove frame stands and lower frame.
3. Tighten M20 locknuts to vehicle manufacturer's specifications.
4. Remove the wheel chocks.
AIRTEK LEAF SPRING ASSEMBLY
DISASSEMBLY
1. Place the vehicle on a level floor.
2. Chock the wheels.
3. Raise the frame.
4. Support the vehicle with frame stands.
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. Deflate the air springs by removing the height control valve linkage and lowering the
height control valve arm. This will exhaust the air pressure in the air springs.
SERVICE MANUAL
L
105
FRONT AXLE & SUSPENSION
1
APPENDIX