TM 5-3895-382-24
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.
On a used machine the total movement should not
exceed 1.27 mm (.050 in).
10.
If the movement is too much, the steer pivot housing
should be disassembled. Bushings, bearings and any
other worn components should be replaced. With new
bearings, bushings and pins the total movement
recorded should be .10 to .76 mm (.004 to .030 in).
Oscillation Bearing Clearance
Check the oscillation bearing 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. Refer to Step 3 in the topic
"Brake/Shift Valve" in this module.
3.
Attach the base of Tool (A) to the front face of the steer
pivot bearing plate. Set the dial indicator actuator
against the front face of the oscillation shaft. Set the
dial indicator to zero.
4.
Release the parking brake on the operator control
console (parking brake will stay engaged when the
solenoid wire is disconnected in step 2).
5.
Start and run the engine at high idle.
6.
Propel the machine in the forward direction against the
parking brake. Observe the indicator reading.
7.
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.)
NOTE: When removing or adding shims behind the plate,
remove or add equal amounts at the top and
bottom of the plate.
8.
The maximum reading for a used assembly should be
.51 mm (.020 in). If the movement is too much, reduce
clearance by removing shims from behind the plate. If
the clearance is too small, add shims to increase the
clearance.
NOTE:
Inadequate bearing lubrication may result if zero
end play or a preload condition is present.
9.
If the proper clearance cannot be obtained with the
removal or addition of shims, the oscillation assembly
should be disassembled. Bushings and any other worn
components should be replaced. Total movement
should be .05 to .25 mm (.002 to .010 in) on a new
assembly.
Remove & Install Yoke & Steer Pivot
NOTE:
The bumper should be installed between the yoke
side plates to prevent the yoke from deflecting
when it is removed.
1.
Use lifting straps and a hoist to position bumper (2)
between yoke (1) as shown. Position the shims
between the bumper and yoke, and install the six bolts
that hold the bumper in place. The weight of the
bumper is 130 kg (286 lb).
16-48
