Peterbilt 325 2017, Operator'S Manual, Page: 48 / 392

WHAT TO DO IF...
off. This allows the engine to cool
gradually and uniformly.
7. If overheating came from
severe operating conditions, the
temperature should have cooled
by this time. If it has not, stop
the engine and let it cool before
checking to see if the coolant is
low.
For further information on engine
temperature and operating engines
properly, see the Engine Operation
and Maintenance Manual and Starting
& Operating the Vehicle on page 4-5.
Check the coolant level after each
trip when the engine has cooled.
The coolant level should be visible
within the surge tank—add coolant if
necessary. See Topping Off in Engine
Cooling System on page 5-80, for
instructions on checking and filling the
coolant expansion tank.
WARNING!
To reduce the chance of death, per-
sonal injury and/or vehicle damage
from overheated engines, which can
result in a fire, never leave the en-
gine idling without an alert driver
present. If the engine should over-
heat, as indicated by the engine
coolant temperature light, immedi-
ate action is required to correct the
condition.
Continued unattended
operation of the engine, even for
a short time, may result in serious
engine damage or a fire.
WARNING!
Do not remove the radiator fill cap
while the engine is hot.
Scalding
steam and fluid under pressure may
escape. You could be badly burned.
Failure to comply may result in death
or personal injury.
Fuse or Relay Blows
Fuses are located behind the drivers
side kick panel, below the ignition
switch, and accessible by a door panel.
See Fuse Panel on page 5-88.
WARNING!
Do not replace a fuse with a fuse of a
higher rating. Doing so may damage
the electrical system and cause a
fire. Failure to comply may result in
death, personal injury, equipment or
property damage.
CAUTION
Before replacing a fuse, turn OFF all
lights and accessories and remove
the ignition key to avoid damaging
the electrical system.
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Y53-6060-1C1 (03/17)
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