TM 5-3895-382-24
Vertical Steering Pivot Clearance
1.
Put the machine on a hard level surface. Stop the
engine, and apply the secondary brake.
2.
Attach the base of 8T5096 Dial Indicator to the top of
the steer pivot housing as shown. Set the dial indicator
actuator on the top of the rear frame.
3.
Set the dial indicator to zero.
4.
Place a hydraulic jack under the rear frame at the pivot
assembly.
Steering Pivot Area
Dial indicator position.
5.
Raise the hydraulic jack and record the reading on the
dial indicator.
NOTE:
When adjusting vertical clearance, top spacer (3)
is the only pivot point location to be shimmed.
6.
With new bearings and shims installed, total movement
should be .13 to 1.14 mm (.005 to .045 in) on a used
machine; total vertical movement should not exceed
1.91 mm (.075 in). If the movement is too much, the
clearance can be reduced by adding spacers at the
vertical pin joints. If the movement is too small, the
clearance can be increased by removing spacers at the
vertical pin joint.
7.
If the proper clearance cannot be obtained with the
spacers,
the
steer
pivot
housing
should
be
disassembled. Bushings or any other worn components
should be replaced.
Horizontal Steer Pivot Clearance
Steering Pivot Area
Dial Indicator position.
Check the horizontal steer pivot clearance as follows:
1.
Put the machine on a hard level surface. Stop the
engine, and apply the parking brake.
2.
Disconnect the wire from the brake solenoid on top of
the brake/shift valve.
3.
Attach the base of 8T5098 Dial Indicator or equivalent to
the top of the steer pivot housing. Set the dial indicator
actuator against the front face of the rear frame.
4.
Set the dial indicator to zero.
5.
Release the parking brake on the operator control
console. (Parking brake stays engaged when the
solenoid wire is disconnected in step 2.)
6.
Start and run the engine at high idle.
7.
Propel the machine in the forward direction against the
parking brake. Observe the indicator reading.
8.
Propel the machine in the reverse direction against the
parking brake. Observe the indicator reading sweep.
(Movement of the indicator needle from the position in
the forward direction to the position of the needle in the
reverse direction. Total indicator travel is the indicator
sweep.)
9.
With the new bearings, bushings and pins the total
movement recorded should be .10 to .76 mm (.004 to
.030 in). On a used machine the total movement should
not exceed 1.27 mm (.050 in).
14-18
