Chevrolet/GMC 2013 DURAMAX Diesel Service Manual Page 71
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Black plate (47,1)
Chevrolet/GMC DURAMAX Diesel Supplement - 2013 - crc - 8/10/12
Driving and Operating 9-47
Maximum PTO Operating Speed:
During PTO operation, the
accelerator pedal can be pressed to
adjust the engine speed. To protect
the PTO from over-speed, the PTO
system will disengage when the
engine speed exceeds 2100 rpm.
The Stationary PTO Mode provides
both in-cab and remote controls.
The in-cab controls are enabled as
the factory preset. The remote
controls are disabled. This factory
preset configuration can also be
reprogrammed to enable the remote
controls, and disable the in-cab
PTO controls (i.e., PTO switch,
accelerator pedal). See your dealer
for more information.
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 at 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 switch
R 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 (850 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 in-cab
PTO switch
R. 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).
- Supplement M 1
- Canadian Vehicle Owners 2
- Using this Supplement 3
- In Brief 5
- Performance and 6
- Instruments and 9
- Controls 9
- Instrument Cluster 10
- Instruments and Controls 5-3 11
- Fuel Gauge 12
- Engine Oil Pressure 13
- Malfunction 14
- Indicator Lamp 14
- Instruments and Controls 5-7 15
- Wait-to-Start Light 16
- Diesel Exhaust Fluid 16
- (DEF) Warning Light 16
- Information Displays 17
- Vehicle Messages 18
- Messages 19
- Diesel Particulate Filter 19
- Service Vehicle Messages 20
- Starting the Vehicle 20
- Transmission Messages 21
- Vehicle Speed Messages 21
- Personalization 22
- Instruments and Controls 5-15 23
- 5-16 Instruments and Controls 24
- Driving and 25
- Operating 25
- 9-2 Driving and Operating 26
- Driving and Operating 9-3 27
- Winter Cover 28
- Driving and Operating 9-5 29
- 9-6 Driving and Operating 30
- Driving and Operating 9-7 31
- 9-8 Driving and Operating 32
- Engine Heater 33
- Diesel Particulate 34
- Driving and Operating 9-11 35
- Driving and Operating 9-13 37
- 9-14 Driving and Operating 38
- Driving and Operating 9-15 39
- 9-16 Driving and Operating 40
- Driving and Operating 9-17 41
- Exhaust Brake 42
- Fuel for Diesel Engines 43
- What Fuel to Use in 44
- The U.S 44
- Driving and Operating 9-21 45
- 9-22 Driving and Operating 46
- Driving and Operating 9-23 47
- Canada and Mexico 48
- Driving and Operating 9-25 49
- 9-26 Driving and Operating 50
- Driving and Operating 9-27 51
- Cold Weather Operation 52
- Water in Fuel 52
- Driving and Operating 9-29 53
- 9-30 Driving and Operating 54
- Driving and Operating 9-31 55
- 9-32 Driving and Operating 56
- Running Out of Fuel 57
- Fuel Filter Replacement 58
- Driving and Operating 9-35 59
- Filling the Tank 60
- Driving and Operating 9-37 61
- Filling a Portable Fuel 62
- Container 62
- Trailer Towing 62
- Driving and Operating 9-39 63
- 9-40 Driving and Operating 64
- Driving and Operating 9-41 65
- 9-42 Driving and Operating 66
- Conversions and 67
- R on the PTO 68
- R on the 68
- R on the PTO switch 69
- 9 on the 69
- 9 switch position on 70
- R, 9 , −/SET, and +/RES 71
- R : This is the PTO switch ON 71
- R or, press and 71
- R. The current engine 71
- 9-48 Driving and Operating 72
- Driving and Operating 9-49 73
- 9-50 Driving and Operating 74
- Driving and Operating 9-51 75
- 9-52 Driving and Operating 76
- Driving and Operating 9-53 77
- 9-54 Driving and Operating 78
- Vehicle Care 79
- 10-2 Vehicle Care 80
- Vehicle Checks 81
- 10-4 Vehicle Care 82
- Vehicle Care 10-5 83
- Engine Oil 84
- Vehicle Care 10-7 85
- 10-8 Vehicle Care 86
- Engine Oil Life System 87
- Vehicle Care 10-11 89
- 10-12 Vehicle Care 90
- Vehicle Care 10-13 91
- 10-14 Vehicle Care 92
- Vehicle Care 10-15 93
- Engine Air Cleaner/Filter 94
- Vehicle Care 10-17 95
- Cooling System 96
- Vehicle Care 10-19 97
- Engine Coolant 98
- Vehicle Care 10-21 99
- 10-22 Vehicle Care 100
- Vehicle Care 10-23 101
- Engine Overheating 102
- Starter Switch Check 103
- Automatic Transmission 103
- Shift Lock Control 103
- Function Check 103
- Ignition Transmission 104
- Lock Check 104
- Park Brake and P (Park) 104
- Mechanism Check 104
- Electrical System 105
- 10-28 Vehicle Care 106
- Vehicle Care 10-29 107
- 10-30 Vehicle Care 108
- Service and 109
- Maintenance 109
- 11-2 Service and Maintenance 110
- Schedule 111
- 11-4 Service and Maintenance 112
- Service and Maintenance 11-5 113
- 11-6 Service and Maintenance 114
- Service and Maintenance 11-7 115
- Special Application 116
- Services 116
- Additional 116
- Maintenance and Care 116
- Service and Maintenance 11-9 117
- 11-10 Service and Maintenance 118
- Recommended Fluids 119
- 11-12 Service and Maintenance 120
- Service and Maintenance 11-13 121
- Maintenance Replacement Parts 122
- Maintenance Records 123
- 11-16 Service and Maintenance 124
- Technical Data 125
- Vehicle Data 126
- Technical Data 12-3 127
- Engine Drive Belt Routing 128
- INDEX i-1 129
- Black plate (2,1) 130
- INDEX i-3 131
- Black plate (4,1) 132
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