Spicer Tandem Drive Axles Service Manual J340-S, J380-S, J400-S, W460-S - Manual (Page 34)

WHEEL BEARING ADJUSTMENT
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NOTE: Wheel bearings should be adjusted following vehicle
manufacturers recommended maintenance schedule.
1. Block wheels not being adjusted to insure that vehicle will
not roll. Release emergency brake.
2. Raise wheel to be adjusted off of the ground. Make certain
wheel rotates freely.
3. Remove axle shaft.
4. Remove outer adjusting nut and lock if tabs are broken.
5. Torque inner wheel nut to 50 Lb-Ft (68 N-m) while
rotating wheel one direction, then the other direction.
Back off inner nut 1/4 turn.
NOTE: When replacing wheel bearings, new bearings must be
seated to insure maximum service reliability. After the hub and
bearings are assembled in place on the spindle, install the
inner adjusting nut. Tighten the inner adjusting nut to 120 -
140 Lb-Ft (163-190 N-m), while rotating the hub to seat the
bearings. Back off the adjusting nut 1/2 turn and follow the
procedure outlined in step #5.
6 . Install lock against inner wheel nut, with locking portion
positioned on either the flat side of inner nut or peak of
inner nut, as shown.
7. Install outer wheel nut and torque to 250-275 Lb-Ft
(340-373 N-m). Rotate wheel in both directions. Wheel
must rotate freely, without binding.
8 . Bend one tang of lock over flat portion of outer wheel to
secure.
9 . Remove old axle flange gasket and clean mating surfaces
of hub and axle flange.
10 . Install new axle flange gasket.
11. Install axle shaft. Torque axle nuts to specifications. (See
Axle/Torque Specifications, Pg. 33).
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