Peterbilt 325 2017, Operator'S Manual

Page: 278 / 392

BRAKE SYSTEM
on page 5-69 for more information on
inspecting the brakes.
Any replacement components
in the brake system must meet
the specifications of the original
components. Any changes from the
original specifications can affect the
performance of the entire system.
WARNING!
Do not use any replacement part in
the brake system unless it conforms
exactly to original specifications. A
nonconforming part in your vehicle's
brake system could cause a mal-
function resulting in an injury acci-
dent. Consult you local dealer for
suitable replacement parts.
WARNING!
Do not work on the brake system
without the parking brake set, the
keys removed from the vehicle, and
wheels chocked securely. If the ve-
hicle is not properly secured to pre-
vent inadvertent vehicle movement,
it could roll and cause serious per-
sonal injury or damage to the vehi-
cle.
• Use wood blocks (4 in. X 4 in. X
6 in. or larger) against the front
and rear surfaces of the tires. Be
sure the vehicle cannot move.
Brake Fluid Check and Refill
WARNING!
Wear protective clothing when han-
dling hydraulic fluid. It is mildly toxic
and can cause skin and eye irrita-
tion.
WARNING!
Use only the type of hydraulic fluid
specified. Do not use or mix different
types of hydraulic fluid. The wrong
hydraulic fluid will damage the rub-
ber parts of the brake system which
may lead to loss of braking and pos-
sibly cause serious personal injury.
CAUTION
Hydraulic brake systems use two
distinct
and incompatible fluids.
Power steering fluid is used in the
hydraulic brake booster system.
Brake fluid is used in the master
cylinder and brake pipes.
Do not
mix these fluids when replenishing
the system or seal damage can re-
sult.
CAUTION
Hydraulic brake fluid may damage
painted surfaces of the vehicle.
5-68
Y53-6060-1C1 (03/17)
5