Liebherr Hydraulic excavator R 974 C Operating manual - PDF DOWNLOAD

Page 112

Control and operation

Operating manual

Operating and control elements

End of preheating Preheating will stop automatically after about 20 seconds and the symbol End of preheating is displayed for approx. 2 seconds on the main screen. Manual Diesel speed adjustment This symbol informs the excavator's operator that the Diesel engine is actually operated in safety mode, either after starting the engine using the switch S71, or due to an automatic commutation consecutive to a communication default in the control system. Service due This symbol indicates that the moment for carrying out the next recurring service work is due. When the electrical system of the machine is turned on, this symbol and the hours for the next service falling due are displayed for approx. 10 seconds in place of the current operating hours. Get the the service work carried out within the prescribed delay,or report the falling due to your supervisor. The symbol will go out after the execution of the programmed service work has been confirmed, see the menu "set service" thereafter. Acknowledge error This symbol appears if an operating fault of the machine (E5xx type error code) has occurred and the buzzer sounds simultaneously. It informs the operator that he can, after having recognised the occured fault, press the back key to stop the buzzer. “Increased care required” - servo-control circuit in safety mode This symbol alerts the operator that the servo-pressure circuits have been turned into safety mode (switch S73 is tilted in safety position). Swing brake not operative This symbol alerts the operator that the swing brake control circuit is out of function due to the turning into safety mode of the servo-control via switch S73. Servo control operation changed This symbol appears if switch S73 is tilted into the safety mode position.

Overload warning device (optional equipment) For a machine fitted with the optional equipment "overload warning device", and if this equipment has been turned on via the switch S18, this symbol alerts the operator that the load limit of the machine has been reached At the same time the buzzer sounds to alert the operator to this fact. No overload warning device recognized This symbol appears if switching on the overload warning device via switch S18 though no overload warning device has been installed and/or correctly initialised on the machine.

copyright by

3 - 22

MJFCIFSS

R 974 C / 10069856


Turn static files into dynamic content formats.

Create a flipbook

Articles inside

5.2Cleaning machine

1hr
pages 290-394

5Maintenance

2min
pages 287-289

Troubleshooting

1min
pages 284-285

Troubleshooting

6min
pages 278-283

Troubleshooting

10min
pages 266-271

4Troubleshooting

3min
pages 263-265

Control and operation

1min
pages 260-262

Control and operation

3min
pages 256-259

Control and operation

2min
pages 254-255

Control and operation

4min
pages 248-253

Control and operation

2min
pages 246-247

Control and operation

1min
pages 244-245

Control and operation

10min
pages 230-243

Control and operation

5min
pages 224-229

Control and operation

4min
pages 220-223

Control and operation

8min
pages 212-219

Control and operation

1min
pages 210-211

Control and operation

2min
pages 206-209

Control and operation

1min
pages 204-205

Control and operation

1min
pages 202-203

Control and operation

3min
pages 198-201

Control and operation

3min
pages 194-197

Control and operation

1min
pages 192-193

Control and operation

6min
pages 186-191

Control and operation

1min
pages 184-185

Control and operation

4min
pages 180-183

Control and operation

1min
pages 178-179

Control and operation

2min
pages 176-177

3.4Working with the machine

4min
pages 170-175

the machine into operation

14min
pages 157-169

Control and operation

1min
pages 156-157

Control and operation

12min
pages 142-155

Control and operation

3min
pages 138-141

Control and operation

1min
pages 136-137

Control and operation

2min
pages 134-135

Control and operation

9min
pages 126-133

Control and operation

4min
pages 120-125

Control and operation

1min
pages 118-119

Control and operation

6min
pages 112-117

Control and operation

8min
pages 106-111

Control and operation

1min
pages 104-105

Control and operation

1min
pages 102-103

Control and operation

1min
pages 100-101

Control and operation

3min
pages 96-99

Safety instructions, Signs on the machine

1min
pages 86-87

Safety instructions, Signs on the machine

4min
pages 78-81

Safety instructions, Signs on the machine

3min
pages 76-77

2Safety instructions, Signs on the machine

28min
pages 61-75

1Product description

1min
pages 11-15
Issuu converts static files into: digital portfolios, online yearbooks, online catalogs, digital photo albums and more. Sign up and create your flipbook.
Liebherr Hydraulic excavator R 974 C Operating manual - PDF DOWNLOAD by www.heydownloads.com - Issuu