Liebherr Hydraulic excavator R 974 C Operating manual - PDF DOWNLOAD

Page 142

Control and operation

Operating manual

Access and equipment of the cab

Adjusting lumbar support (in models with pneumatic adjusting mechanism)*: Adjust the curve of the upper and lower section of the backrest upholstery by pressing the two switches 2 at the rear of the seat. Adjusting shock absorber*: The shock absorption level can be adjusted to suit the actual road or terrain conditions. Turn the handle 10 to the desired position and release it. • Position 1 = hard • Position 2 = medium • Position 3 = soft Adjusting horizontal cushioning*: Under certain operating conditions, you can improve the operator comfort by adjusting the horizontal cushioning mechanism. This helps reduce impact stress in travel direction on the operator as these impacts are better cushioned by the seat. Move the handle 6 to the desired position. • Position 1 = horizontal cushioning OFF • Position 2 = horizontal cushioning ON After the handle has been moved to position 1, ensure that is engages properly in this position: push the seat back until you hear an audible click. Adjusting armrests: Turn the hand wheel 5 until the armrests are in the desired position. If required, the height can be adjusted individually for each armrest: Remove the cover cap 4 from the seat covering. Loosen the hex (wrench size 13 mm). Set the armrest to the desired position. Tighten the hex nut (25 Nm). Replace the cover cap on the hex nut. Adjusting headrest: Adjust the headrest 16 by pulling it from the engaging mechanism. Adjust the headrest angle by pushing it forward or back. To remove the headrest, move it to the upper stop and then pull it with force from the seat. Seat heating: Actuate the switch 1 to switch on the seat heating. • Position 0 = seat heating OFF • Position 1 = seat heating ON * Model variant

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R 974 C / 10069856


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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
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