Case 580SR Service Manual page 513

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SECTION 27 - REAR AXLE 21
MEASUREMENTS AND ADJUSTMENTS
PRELOAD OF PINION BEARING
The pinion bearing preload is set by selecting the
correct shim (spacer) which is placed between the
bearings.
Reassemble the pinion assembly, attach the fabri-
cated spanner 380002675 to the flange (1) and
torque to 406 Nm with spanner to the locknut (2).
MEASURING OF PINION ROLLING TORQUE
Use a torque metre (1) to check rolling resistance
when the assembly is fitted back into the axle.
The rolling resistance should be: 1.3 Nm. Leave pin-
ion retainer screws loose for this check.
If under specification, fit a smaller shim. If over spec-
ification, fit a larger shim.
AXLE SHAFT BEARING PRELOAD
The preload of the axle shaft bearing is realized by
X
placing the shims (1) between axle shaft (2) and
1 2
washer (3) as many as necessary to achieve value
X.
3
F29558