Verify wheel end-play procedure – Spicer Single Drive Axles Service Manual: S135L, S135N, S135S, S150L, S150N, S150S User Manual

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Wheel Ends

Verify Wheel End-Play Procedure

Verify end-play meets specification using a dial indicator. An
indicator with 0.001" (0.03 mm) resolution is required. Wheel
end play is the free movement of the tire and wheel assembly
along the spindle axis.

Correct end-play is 0.001" - 0.005" (0.025 - 0.125 mm).

Adjust End-Play with Tire and Wheel Assembly

1.

Attach a dial indicator with its magnetic base to the
hub or brake drum.

2.

Adjust the dial indicator so its plunger or pointer is
against the end of the spindle with its line of action
approximately parallel to the axis of the spindle.

3.

Grasp the wheel assembly at the 3 o’clock and 9
o’clock positions. Push the wheel assembly in and
out while oscillating it to seat the bearings. Read
bearing end-play as the total indicator movement.

CAUTION: If end-play is not within specification, read-
justment is required.

Adjust End-play with Wheel Hub

Insufficient End-play - If end-play is not present, remove the
outer nut and pull the lock washer away from the inner nut,
but not off the spindle. Loosen the inner nut to the next
adjustment hole of the dowel-type washer (if used). Reassem-
ble the washer and re-torque the outer nut. Verify end-play
with a dial indicator.

Excessive End-play - If end-play is greater than 0.005" (0.127
mm), remove the outer nut and pull the lock washer away
from the inner nut, but not off the spindle. Tighten the inner
nut to the next alignment hole of the dowel-type washer (if
used). Reassemble the washer and re-torque the outer nut.
Verify end-play with a dial indicator.

Fine Tuning the End-play - If, after performing the readjust-
ment procedures, end-play is still not within the 0.001" -
0.005" (0.025 - 0.127 mm) range, disassemble and inspect
the components. If parts are found to be defective, replace the
defective parts, reassemble and repeat wheel bearing adjust-
ment procedure. Verify end-play with a dial indicator.

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