Group 26, Steer Axle
SM 765, Dec ’06 Steering Axle Removal and Replacement • 26-3-3
Steer Axle Mounting
Steer Axle Replacement
Replacement is the reverse of removal. Refer to Figure A
for replacement.
CAUTION
!
Make sure truck is correctly raised and
safely blocked using hardwood blocks under
the frame. Be sure the blocking will permit
installation of the axle without disturbing the
blocking.
1. If silent blocks have been removed from axle, install
new silent block assemblies. Use a rubber or plastic
mallet to seat the silent mounts onto the axle trun-
nions.
2. Make sure that the silent blocks are positioned cor-
rectly front and rear on the steer axle trunnions at the
start of installation. Align the silent blocks square
with the axle.
3. Use a fork lift truck or mobile floor jack to tempo-
rarily support and raise the axle into place under the
truck. If another lift truck is used to handle axle, cen-
ter the forks with about 305 mm (12 in) spread
between them. Place steer axle assembly in secure
position on fork tips.
If hydraulic jack is used, be sure axle is securely sup-
ported on jack pad.
WARNING
!
Heavy components can fall and cause severe
injury. Keep your body clear at all times.
4. Install axle assembly into frame by slowly raising it
up while guiding silent block bushings into frame
sockets.
5. Install silent block mounting bolts through frame
socket holes and silent block, front and rear.
Reset the two mounting plates under the silent blocks
of the axle.
6. Install silent mount fasteners and tighten to 240-265
N⋅m (180-196 ft-lb).
7. Remove temporary axle support from under truck.
8. Connect the hydraulic lines to steering cylinder.
Tighten fittings to 12-14 N⋅m (106-123 in-lb; 8.8-
10.3 ft-lb).
IMP
RTANT
Make sure all fittings and openings on the
hydraulic lines are clean.
Steering Link
Steering Knuckle
Steer Axle
Silent Mount
Steering Link
Steering Knuckle
Steer Axle
Silent Mount
New Steer Axle
Old Steer Axle
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