Specifications

Component Replacement 76 17730-248
AIRTEK
®
•
SOFTEK
®
for Blue Bird Buses
FIGURE 9-36
3. Position the axle wrap on the axle, see
Figure 9-36.
DO NOT STRIKE THE TOP AXLE WRAP WITH
A HAMMER. HENDRICKSON RECOMMENDS
USING A PLASTIC DEAD BLOW MALLET WITH
CARE WHEN INSTALLING THE AXLE WRAP.
4. Protect the top surface of the axle wrap
with a block of wood, cardboard, or
shop towels.
5. Install a bottle jack between the axle
wrap and frame rail flange.
6. Jack the axle wrap down into position
on the axle, using care to make sure
the axle wrap bore indexes the locating
bushing on the axle.
7. Install the spring and wrap leaf assembly on the axle wrap indexing the center bolt in
the locating hole.
8. Install the top pad on the spring and wrap leaf assembly.
9. Remove and replace the bottom axle wrap liner.
10. Install the bottom axle wrap.
11. Install the new ¾" clamp group U-bolts, washers, and locknuts.
12. Snug the clamp group, DO NOT torque at this time.
FIGURE 9-37 SOFTEK
13. Use a jack and raise the axle and spring assem-
bly into the front spring hanger and shackle
assembly.
SERVICE HINT A bottle jack may be required to raise the axle slightly
in order to install the spring eye bolts.
14. Install the M20 spring eye bolts, washer and
locknuts in the front spring hanger and rear
shackle assembly.
15. Ensure that the clamp group is properly aligned
and the U-bolts are seated in the top pad, and the
bottom axle wrap is centered with the top axle
wrap, see Figure 9-37.
FIGURE 9-38
16. Tighten the ¾" clamp group locknuts evenly to 285-305 foot
pounds torque in the proper sequence, see Figure 9-38.
17. Apply a thin coating of anti-seize to the lower shock mounting bolt.
18. Install shocks. (See shock absorber assembly in this section)
19. Remove the jack from the axle.
20. Remove the frame stands.
21. Tighten the M20 spring eye bolt locknuts to vehicle manufacturer's specifications.
22. Remove the wheel chocks.
8K/10K Top
Axle Wrap
Top Axle
Wrap Liner
Axle Wrap
Guide Pin
Axle
13.2K/14.6K
Top Axle Wrap
L
118
1
APPENDIX
SERVICE MANUAL