The crane is equipped with two axles, one on the
either the carrier or superstructure cab. The axles
front of the carrier and one on the rear of the carrier.
are mounted to the carrier frame by means of an
To provide maximum maneuverability, both axles
oscillation lockout cylinder and leaf spring located at
are drive and steer axles and can be controlled from
each end of each axle.
For more detailed information refer to the applicable SM package.
Wheel and axle alignment will be easier
if the tie rods are not removed from the
The axles do not have to be removed
from the crane to remove the planetary
wheel ends or the drive units.
Fully extend and set the outriggers. Install
Step 6 applies only to the front axle.
blocking under the frame at the outboard ends of the
Mark position of washers removed from
torque rod to ensure proper positioning
Deplete the air pressure in the brake system.
Remove the cotter pin and hex nut securing
the drag link to the steering arm and the hex nut,
washer(s), and capscrew securing the torque rod to
Each tire and wheel assembly weighs
the axle assembly. Disconnect the drag link and
approximately 540 pounds (245 kg).
torque rod from the axle.
Remove the tire and wheel assemblies from
Tag and disconnect the air lines to the brake
the axle to be removed.
chambers. Cap or plug all lines and openings.
Remove the drive lines. Refer to DRIVE
Tag and disconnect the hydraulic lines to the
LINES in Section 3 - DRIVE TRAIN.
steer cylinders. Cap or plug all lines and openings.
Each axle weighs approximately 1600
Ensure any lifting device used is capable
lbs (726 kg).
of supporting the weight of the axle.
Place adequate blocking beneath the axle(s) to