17730-299
39
Component Replacement
ULTIMAAX
®
for Fire and Rescue Vehicles
FIGURE 8-17
7 . Raise the vehicle’s frame just enough to create a ½" (13 mm) gap between the saddles and
the center bushings . Support the vehicle’s frame at this height with safety stands .
THE WEIGHT OF THE EQUALIZING BEAM ASSEMBLY IS APPROXIMATELY 285 POUNDS (130
KILOGRAMS) . PRIOR TO REMOVING THE END BUSHING BOLTS FROM THE EQUALIZING BEAM, SUPPORT
THE END OF THE EQUALIZING BEAM TO PREVENT IT FROM DROPPING . CARE SHOULD BE TAKEN AT
REMOVAL AND INSTALLATION TO PREVENT PERSONAL INJURY OR DAMAGE TO COMPONENTS .
8 . Support both equalizing beams under the center bushing with floor jacks .
9 .
Adapter Style End Bushing –
Proceed to Step 11 .
NOTE
Prior to disassembly of the equalizing beam bar pin fasteners, note the orientation of the bar
pin alignment shims . It is required that the bar pin alignment shims are installed in the same
orientation and location as removed to preserve the existing vehicle alignment . Improper vehicle
alignment can increase tire wear .
10 .
Bar Pin Style End Bushing –
Note the orientation and location of the bar pin shims .
11 . Remove and discard end bushing fasteners .
SERVICE HINT
The center bushing will allow the cross tube and the equalizing beam to angle downward once
the equalizing beam end fasteners are removed .
12 . Slowly lower the floor jacks and remove the equalizing beams from the axle brackets .
PRIOR TO REMOVING BOTH EQUALIZING BEAMS, SUPPORT THE PINION OF EACH DRIVE AXLE . FAILURE
TO DO SO CAN RESULT IN PERSONAL INJURY OR ALLOW THE AXLES TO SHIFT MAKING REASSEMBLY
MORE DIFFICULT .
13 . Slide the equalizing beams off the cross tube and out from under the vehicle .
14 . Remove the floor jacks from under the equalizing beams .
ASSEMBLY
1 . Position the equalizing beams under the axles with floor jacks .