Peterbilt 579 - Page 135

SWITCHES
19. Engine, Overspeed Air
Shutdown (Manual)
Turn
switch on to engage the
Engine Overspeed Air Shutdown
system. A system reset will be
required before re-starting engine.
See EOAS system manufacturer's
instruction manual for details.
20. Engine, Overspeed
Air
Shutdown (Test)
Hold down
switch and increase
engine RPM to test that Engine
Overspeed Air Shutdown system
functions correctly. A system
reset will be required before
restarting engine. See EOAS
system manufacturer's instruction
manual for details.
21. Engine, Remote
Throttle
Turn
switch on to activate Remote
Throttle Control.
22. Exhaust, Diesel
Particulate
Filter (DPF) Regeneration Switch
Manually controls
the diesel
particulate lter regeneration process.
Refer to Engine After-treatment
Controls Operator's Manual for
additional information.
23. Fifth Wheel Slide
Turn
switch on to “Unlock” Fifth
Wheel Slide mechanism.
The switch is guarded to protect
you from accidentally activating
or releasing the lock.
NOTE
Vehicles having an air slide fth wheel
have a fth wheel slider lock controlled
by a switch on the instrument panel.
By placing the switch in the unlock po
-
sition you can slide the fth wheel to
various positions to adjust weight dis
-
tribution.
WARNING!
Do not move the fth wheel while the
tractor-trailer is in motion. Your load
could shift suddenly, causing you to
lose control of the vehicle. Never op
-
erate the vehicle with the switch in the
UNLOCK position. Always inspect the
fth wheel after you lock the switch to
be sure the fth wheel slide lock is en
-
gaged. Failure to comply may result
in death, personal injury, equipment or
property damage.
24. Fuel Heater
Turn
switch on to activate Fuel Heater.
25. Generic, Air,
Accessory
Provides accessory
air to the
end of frame connection when
switch is turned on.
3
(04/13) Y53-6047–2C 3-63