Component Replacement
50
17730-299
ULTIMAAX
®
for Fire and Rescue Vehicles
CROSS TUBE
A cross tube seldom requires replacement, usually only when it has been bent, possibly due to
hitting an object . A bent cross tube may cause misalignment of the axles, and must be replaced
immediately to eliminate abnormal tire wear .
Method A
Equalizing Beam Removal Method
- Follow the steps in the Equalizing Beam
Component Replacement procedure in this section .
Within the procedure, after removal of the equalizing beams when the equalizing beams are
separated, remove and replace cross tube .
Method B
Center Bushing End Plug Removal
You will need:
■
Cross Tube Service Kit 60961-759 (see Parts Lists Section)
■
Cutting Torch
■
Welding Equipment
■
Hole Saw
DISASSEMBLY
1 . Use a work bay with a level on a flat surface .
2 . Chock the front steer axle wheels .
FOLLOW THE SAFETY GUIDELINES FOR OPERATING THE TORCH . USE CAUTION AS PARTS MAY BE HOT .
3 . Using a cutting torch, make two cuts in the cross tube, see Figure 8-44 .
4 . Remove the cut section of the cross tube, slide each remaining section of the cross tube and
discard .
5 . Use a 2" hole saw and remove only one center bushing end plug from the suspension .
FIGURE 8-44
ASSEMBLY
1 . Clean the open end of the center bushing bore to approximately 1" depth of weld and debris .
2 . From the open center bushing slide the new cross tube into both center bushings .
3 . It may be necessary to use a floor jack under one or both equalizing beams to align the cross
tube .