Specifications

Component Replacement 70 17730-248
AIRTEK
®
•
SOFTEK
®
for Blue Bird Buses
AIRTEK BOTTOM AXLE WRAP
DISASSEMBLY
1. Place the vehicle on 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 disconnecting the height control valve linkage and lowering
the height control valve arm. This will exhaust the air pressure in the air springs.
DO NOT USE A CUTTING TORCH TO REMOVE CLAMP GROUP BOLTS OR ATTACHING
FASTENERS. THE USE OF SUCH HEAT ON SUSPENSION COMPONENTS CAN ADVERSELY AFFECT
THE STRENGTH OF THESE PARTS. A COMPONENT DAMAGED IN THIS MANNER CAN RESULT IN
THE LOSS OF VEHICLE CONTROL AND POSSIBLE PERSONAL INJURY OR PROPERTY DAMAGE.
SERVICE HINT If a clamp group nut fails to come off bolt, cut half way through the bolt with an abrasive
cut off wheel, taking care not to contact axle beam or other components. Using an impact
wrench, spin the locknut to fracture the bolt and remove.
7. Remove ¾" hex bolts, washers and locknuts. Removal of the air spring will be
required. See Air Spring Replacement instructions in this section. Discard fasteners.
8. Remove bottom axle wrap. It may be necessary to use a dead blow mallet to dislodge
axle wrap.
9. Once removed inspect axle wrap for damage. Replace if necessary.
10. Discard used bottom axle wrap liner.
ASSEMBLY
1. Install new bottom axle wrap liner into bottom axle wrap.
2. Install bottom axle wrap on axle.
FIGURE 9-27 AIRTEK
L
112
1
APPENDIX
SERVICE MANUAL