Chrysler RAM TRUCK 2500 1994 Service Manual page 54

• LUBRICATION AND MAINTENANCE 0 - 29
Fig. 2 Front Wheel Bearing—2WD Vehicles
Fig. 3 Front Wheel & Spindle Bearings—4WD
Vehicles
(3) Inspect the bearing rollers for indications of
pitting. Light bearing roller discoloration is consid­
ered normal. A wheel bearing must be replaced i f any
serious damage exists.
(4) Re-pack the bearings with a multi-purpose
NLGI GC-LB lubricant. The use of a bearing packer
is recommended. A small amount of fresh lubricant
also should be added to the hub cavity.
BEARING INSTALLATION/ADJUSTMENT
(1) Install the hub/rotor (with inner bearing and
seal) on steering knuckle spindle.
(2) Install the outer bearing, the thrust washer
and the nut.
(3) Tighten wheel bearing nut to 27-34 N-m (240-
300 in. lbs.) torque while rotating hub/rotor. This will
seat the bearings.
(4) Loosen the nut 1/4 of-a-turn (90°), then tighten
it finger tight.
(5) Position nut lock on the nut with one pair of
slots aligned with the cotter pin hole. Install the cot­
ter pin.
(6) Install the dust cap and wheel/tire. Tighten the
wheel lug nuts to 115 N-m (85 ft. lbs.) torque. Install
the wheel cover.
SELECTING LUBRICANT
Use a multi-purpose NLGI GC-LB lubricant, or an
equivalent lubricant).
REAR WHEEL BEARINGS
The rear wheel bearings for vehicles equipped with
a Dana 60, 70 or 80 axle should be cleaned and re­
packed whenever the rear brakes are serviced. Refer
to Group 3, Rear Axles for the service procedure.
BRAKES
The brake fluid level should be inspected when
other underhood service is done. I f necessary, add
fluid to raise the level to the bottom of the split
rings. With disc-brakes, the fluid level can be ex­
pected to fall as the brake pads wear. However, a low
fluid level can also be caused by a leak, and repair
will then be necessary, refer to Group 5, Brakes for
proper service procedures.
SELECTING FLUID
Power brake systems require Mopar Heavy-Duty
Brake Fluid, or an equivalent product identified with
FMVSS No. 116, DOT-3 and SAE J-1703 Standard
designations.
Use brake fluid properly sealed container when
adding fluid to the reservoir. Never use reclaimed
fluid or fluid that does not conform to the DOT/SAE
Standards.
CAUTION: U s e of a brake fluid that h a s a lower ini­
tial boiling point then specified by FMVSS No. 116
or DOT 3 could result in sudden brake failure dur­
ing hard, prolonged braking.
Do not allow petroleum base fluids to contami­
nate the brake
fluid.
Seal damage will result.
BRAKE SYSTEM INSPECTION
(1) Inspect the brake pads and linings for excessive
wear, cracks and broken rivets.
(2) Inspect brake pads and linings for contamina­
tion with brake fluid, axle lubricant and/or other flu­
ids.