Black plate (47,1)
DURAMAX Diesel Engine (LML/LGH) - 2011
Driving and Operating
9-47
Variable PTO Mode
In this mode, the vehicle can be
programmed for stationary or mobile
operation.
The variable PTO mode controls
engine speed and PTO load
engagement is selected by either
the PTO in-cab or remote switches.
Engine speed selection is variable
between base engine idle speed
and a maximum of 3100 rpm
(factory setting 2100 rpm).
In the mobile PTO mode, the
vehicle will operate at a vehicle
speed resulting from the current
PTO engine speed request and
current transmission gear range
selected.
Vehicle speed stability is greatly
improved by shifting into the
transmission manual mode because
upshifts are limited. This reduces
the maximum vehicle speed while
allowing high engine speed
operation. Therefore, low vehicle
speed operation 16
‐
40 km/h
(10
‐
25 mph) and high PTO
engine speed (1,500
–
2,000 rpm)
can be achieved in the manual
mode 1 and 2 transmission ranges.
PTO Switch Operation
The In-cab PTO Switch has four
positions:
R
,
9
,
−
/SET, and +/RES.
R
:
This is the PTO switch On
position.
To engage PTO, press and release
the in
‐
cab 1 switch position or, press
and release the remote PTO arming
switch, then within five seconds,
assert the remote enable switch to
on. The vehicle will increase engine
speed to a factory preset engine
speed (800 rpm). This PTO stand
‐
by
speed is not intended to be an
operational PTO speed, but allows
the engagement of the PTO at lower
initial start-up rpm to match with the
engagement of the PTO load relay.
The initial stand
‐
by speed can be
adjusted by holding the accelerator
to the desired engine speed, then
pressing and releasing the 1 in
‐
cab
PTO switch position. The current
engine speed will become the new
stand
‐
by speed. This adjustment
can only be done once at the initial
engagement of PTO. The initial
stand
‐
by speed adjustment must be
between engine base idle speed
and 1800 rpm (maximum PTO
engage speed).
9
:
This is the PTO switch Off
position.
Press and release the in
‐
cab
9
switch position or assert the
remote enable switch to off to
disengage PTO. The engine speed
will be reduced to the base idle
speed and the PTO load relay will
be disengaged.
All manuals and user guides at all-guides.com