Chevrolet/GMC 2013 DURAMAX Diesel Service Manual Page 69

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Black plate (45,1)
Chevrolet/GMC DURAMAX Diesel Supplement - 2013 - crc - 8/10/12
Driving and Operating 9-45
The operator must take the action
indicated, then again press and
release the
R on the PTO switch.
.
PTO: SHIFT TO PARK OR
NEUTRAL (Stationary only)
.
PTO: SET PARK BRAKE
(Stationary only)
.
PTO: PRESS & RELEASE
BRAKE (Mobile only)
.
PTO: RELEASE BRAKE
.
PTO: REDUCE VEHICLE
SPEED
.
PTO: REDUCE ENGINE SPEED
.
PTO: DISENGAGE CRUISE
CONTROL (Mobile only)
.
PTO: SPEED RANGE (Program
ECM to match PTO Mode)
In addition to these messages, the
PTO switch indicator light will
indicate when all conditions required
to engage PTO have not been met.
When enabling PTO, the indicator
light will turn on, then off after
one second. Under normal
operating conditions, the PTO
indicator light will remain on
throughout the PTO operating cycle.
PTO load relay engagement/
disengagement is disabled at the
factory. See Factory Preset
Parameters later in this section.
PTO Disengage Conditions
To disengage the stationary or
mobile PTO operation, do one of the
following:
.
Press the brake. PTO will
disengage immediately. The
PTO indicator light will blink
slowly, indicating that the PTO
set speed is stored in memory.
Pressing the +/RES switch
position will restore engine
speed to the stored PTO set
speed. PTO can also be
programmed to reengage at
PTO standby speed upon
releasing the brake pedal
(mobile PTO only).
.
Press and release the 9 on the
PTO in-cab switch. The engine
speed will return to normal
engine idle. The PTO indicator
light will go off indicating the
PTO load relay has been
disengaged and PTO set speed
has been cleared from memory.
.
From the remote PTO controls,
move the speed enable switch to
the off position. The engine will
return to normal idle. The PTO
load relay is disengaged. PTO
memory speed is also cleared
(Stationary PTO only).
.
From the remote PTO controls,
press the remote engine
shutdown switch. PTO is
disengaged and the engine is
shutdown simultaneously
(Stationary remote PTO only).
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