Chevrolet 2013 Duramax Diesel, Руководство пользователя

Страница: 70 / 132

Black plate (46,1)
Chevrolet/GMC DURAMAX Diesel Supplement - 2013 - crc - 8/10/12
9-46 Driving and Operating
The mobile PTO mode will also
disengage if the following conditions
are detected by the vehicle
electronics:
. The PTO load becomes
disengaged. (See service
manual.)
. Vehicle speed exceeds 80 km/h
(50 mph).
. Engine speed exceeds the
maximum allowed PTO
operating speed of 3100 rpm
(factory setting 2100 rpm).
. The PTO control system will
attempt to limit accelerator pedal
and PTO switch input as the
vehicle approaches the above
operational limits. There are
some vehicle conditions, such
as downhill acceleration, which
may cause vehicle speed and/or
engine speed limits to be
exceeded. Under these
conditions, PTO is disengaged.
The stationary PTO mode will also
disengage if any of the following
conditions are detected by the
vehicle electronics:
. Movement of the vehicle.
. The park brake is released.
. The transmission is shifted from
P (Park) or N (Neutral) to
D (Drive) or R (Reverse).
. The PTO load becomes
disengaged. (See service
manual.)
Preset PTO Mode
Preset PTO can only be used when
the vehicle is not moving. The
engine speed is initially set to a
stand-by engine speed (850 rpm) by
pressing the PTO in-cab switch
R
,
or by pressing and releasing the
remote arming switch. Then within
five seconds, assert the remote
PTO enable switch to on. This
provides an initial start-up engine
speed to match the engagement of
the PTO load. The PTO standby
engine speed can be reprogrammed
to a higher speed by your dealer.
Choose one of two factory presets
by pressing the PTO in-cab
− /SET
or +/RES switch positions or the
remote PTO SET switch.
Speed 1 and Speed 2 are
programmable by a service
technician from base engine idle
rpm to max PTO operation speed
(3100 rpm).
. Speed 1: Pressing the − /SET
position of the PTO switch
results in a preset speed of
1250 rpm.
. Speed 2: Pressing the +/RES
position of the PTO switch
results in a preset speed of
1700 rpm.
Pressing the
9
switch position on
the PTO in-cab switch or moving the
remote PTO enable switch to OFF
results in the return of the engine
speed back to normal idle. The PTO
load relay is also disengaged.