Dodge RAM TRUCK 1500 1995 Service Manual page 174

5 - 2 BRAKES
BR
slip when braking. Preventing lockup is accomplished
by modulating fluid pressure to the wheel brake
units. Refer to the antilock brake sections for opera­
tion and service information.
The RWAL antilock system uses one control valve.
The ABS antilock system uses two control valves. Re­
fer to the appropriate antilock brake section for valve
operation, diagnosis and service procedures.
BRAKE WARNING LIGHTS
A red warning light alerts the driver if a pressure
differential exists between the front and rear hydrau­
lic systems. The light also alerts the driver when the
parking brakes are applied. The light is located in
the instrument cluster.
An amber warning light is used for the antilock
system. This light is located in the same side of the
instrument cluster as the red indicator light. The an­
tilock light alerts the driver if a system fault occurs.
B i A I E FLUiD/LUBliCllTS/CLElliie SQLVE1TS
Recommended fluid for all BR models is Mopar
brake fluid or equivalent meeting SAE standard
J1703 and Federal standard DOT 3.
Use Mopar multi mileage grease to lubricate cali­
per slide surfaces, drum brake pivot pins and shoe
contact points on the backing plates. Use GE 661 or
Dow 111 silicone grease (or equivalent) on caliper
bushings and mounting bolts.
Use Mopar brake cleaner, or denatured alcohol to
clean or flush brake system components. These are
the only cleaning materials recommended.
CAUTION: Newer use gasoline, kerosene, methyl
(wood) alcohol, motor oil, transmission fluid, or any
fluid containing mineral' oil to clean the system
components. These fluids damage rubber cups and
seals. If system contamination is suspected, check
the'fluid for dirt, discoloration, or separation into
distinct layers. Drain and flush the system with new
brake fluid if contamination is suspected.
i i i E L iiElTiFiCATiOl
Truck model and capacity designations are:
• 1500 indicates 1/2 ton models
• 2500 indicates 3/4 ton model
• 3500 indicates 1-ton model
The model identification and capacity ratings are
used throughout this group to differentiate from, or
indicate application of a specific brake component.
BRAKE SAFETY PRECAUTIONS
WARNING: ALTHOUGH A S B E S T O S F R E E B R A K E -
LINING IS FACTORY INSTALLED ON A L L B R MOD­
E L S , E X E R C I S E C A R E W H E N REPAIRING A
VEHICLE WITH PRIOR B R A K E S E R V I C E . SOME AF­
T E R MARKET BRAKELINING MAY CONTAIN A S ­
B E S T O S . A S A RESULT, DUST AND DIRT ON
B R A K E PARTS MAY CONTAIN A S B E S T O S F I B E R S .
BREATHING E X C E S S I V E CONCENTRATIONS OF
A S B E S T O S F I B E R S CAN C A U S E S E R I O U S BODILY
HARM. E X E R C I S E C A R E W H E N SERVICING B R A K E
COMPONENTS. DO NOT C L E A N B R A K E COMPO­
NENTS WITH C O M P R E S S E D AIR OR B Y DRY
BRUSHING. U S E A VACUUM C L E A N E R S P E C I F I ­
CALLY DESIGNED FOR REMOVING B R A K E DUST.
IF A SUITABLE VACUUM C L E A N E R IS NOT AVAIL­
A B L E , CLEANING SHOULD B E DONE USING A WA­
TER DAMPENED CLOTH. DO NOT CREATE DUST
B Y SANDING, GRINDING, OR SHAVING B R A K E LIN­
INGS U N L E S S P R O P E R L Y VENTED EQUIPMENT IS
U S E D . DISPOSE OF A L L DUST AND DIRT THAT
MAY CONTAIN A S B E S T O S F I B E R S IN S E A L E D
B A G S OR CONTAINERS. THIS WILL MINIMIZE E X ­
P O S U R E TO Y O U R S E L F AND OTHERS. FOLLOW
ALL RECOMMENDED P R A C T I C E S P R E S C R I B E D B Y
THE OCCUPATIONAL S A F E T Y AND HEALTH ADMIN­
ISTRATION AND THE ENVIRONMENTAL PROTEC­
TION AGENCY FOR THE HANDLING, P R O C E S S I N G ,
AND DISPOSITION OF DUST OR DIRT WHICH MAY
CONTAIN A S B E S T O S F I B E R S .