Rear Disc Brakes; Wheel Bearings - DaimlerChrysler LH New Yorker 1994 Electronic Service Manual

5 - 74 BRAKES
FRONT WHEEL BEARINGS
Front wheel drive vehicles are equipped with per-
manently sealed front wheel bearings. There is no
periodic lubrication or maintenance recommended for
these units. However if during servicing of the brake
system, service to the front wheel bearing is required
refer to Group 2, Suspension in this service manual.
REAR WHEEL BEARINGS
The L.H. platform vehicles are equipped with per-
manently lubricated and sealed rear wheel bearings.
There is no periodic lubrication or maintenance rec-
ommended for these units. However if servicing of a
rear wheel bearing is required. Refer to procedures
below for the inspection, removal and replacement of
rear wheel bearing.
INSPECTION
The rear hub and bearing assembly is designed for
the life of the vehicle and should require no mainte-
nance. The following procedure may be used for
evaluation of bearing condition.
With wheel disc brake caliper, and rotor or brake
drum removed, rotate flanged outer ring of bearing.
Excessive roughness or resistance to rotation may indi-
cate dirt intrusion or bearing failure. If the rear wheel
bearings exhibit these conditions during inspection,
the hub and bearing assembly should be replaced.
Damaged bearing seals and resulting excessive
grease loss may also require bearing replacement.
Moderate grease loss from bearing is considered nor-
mal and should not require replacement of the hub
and bearing assembly.
REMOVE
(1) Remove rear hub and bearing assembly dust
cap (Fig 1). Remove cotter pin and nut lock from rear
spindle.
Fig. 1 Rear Hub And Bearing Dust Cap Removal

WHEEL BEARINGS

(2) Remove rear hub and bearing assembly cotter
pin, nut retainer and hub/bearing assembly retaining
nut and washer (Fig. 2). Then remove rear hub and
bearing assembly from spindle.
Fig. 2 Rear Hub And Bearing Retaining Nut Removal
REPLACE
(1) Install rear hub and bearing assembly on rear
spindle. Install hub and bearing assembly washer and
retaining nut (Fig. 2). Torque hub and bearing assem-
bly retaining nut to 168 N m (124 ft.lbs.). Install nut
lock and cotter pin on spindle.
(2) Install rear hub and bearing dust cap (Fig. 1).
(3) Install rear brake drum or rotor on hub.
(4) If vehicle is equipped with rear disc brakes,
install rear disc brake caliper onto the adapter. In-
stall the caliper assembly to adapter guide pin bolts
and torque to 22 N m (17 ft. lbs.).
(5) Install the wheel and tire assembly. Tighten the
wheel mounting stud nuts in proper sequence (Fig. 3)
until all nuts are torqued to half specification. Then
repeat the tightening sequence to the full specified
torque of 129 N m (95 ft. lbs.).
Fig. 3 Tightening Wheel Nuts