Specifications

17730-248 73 Component Replacement
AIRTEK
®
•
SOFTEK
®
for Blue Bird Buses
FIGURE 9-30
ASSEMBLY
1. Install the new axle wrap liner on the axle.
2. Spray the axle wrap liner and the axle wrap with a silicon lubricant.
3. Position the axle wrap on the axle, see Figure 9-31.
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.
FIGURE 9-31
4. Protect the top surface of the axle
wrap with a block of wood, card-
board, 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 locat-
ing bushing on the axle.
IMPORTANT NOTE For Flat Floor Models install the
intermediate dowel pin into the axle wrap.
7. Install the spring and wrap leaf
assembly on the axle wrap (indexing
the dowel pin if equipped).
8. Install the galvanized liner and 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 bolts, washers, and locknuts.
12. Snug the clamp group, DO NOT torque at this time.
13. Use a jack and raise the axle and spring assembly 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 in the front spring hanger and rear shackle assembly.
15. Ensure that the clamp group is properly aligned and the hex bolts are seated in the top pad,
and the bottom axle wrap is centered with the top axle wrap, see Figure 9-32.
10K Top
Axle Wrap
Top Axle
Wrap Liner
Axle Wrap
Guide Pin
Axle
14.6K Top
Axle Wrap
SERVICE MANUAL
L
115
FRONT AXLE & SUSPENSION
1
APPENDIX