Peterbilt 579 - Fuse or Relay Blows

WHAT TO DO IF...
2
3 to 5 minutes before shutting it
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
and 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 5-71, for
instructions on
checking and lling 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 re, never leave the engine
idling without an alert driver present.
If the engine should overheat, as indi
-
cated by the engine coolant tempera-
ture light, immediate 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 re.
Do not remove the radiator ll cap
while the engine is hot. Scalding
steam and uid under pressure may
escape. You could be badly burned.
Failure to comply may result in death
or personal injury.
WARNING!
Fuse or Relay Blows
Fuses are located behind the drivers
side kick panel, below the ignition
switch, and accessible by a door panel.
See Power
Distribution Box on page
5-83.
The vehicle
main power relays are
located in the engine compartment.
See Power
Distribution Center (PDC)
on page
5-80.
WARNING!
Do not replace a fuse with a fuse of a
higher rating. Doing so may damage
the electrical system and cause a re.
Failure to comply may result in death,
personal injury, equipment or property
damage.
2-6 Y53-6047–2C (04/13)