Liebherr Hydraulic excavator R 974 C Operating manual - PDF DOWNLOAD

Page 290

Maintenance

Operating manual

Cleaning machine

5.2 Cleaning machine The machine should be cleaned before carrying out any maintenance or repair work. In particular, the connections and screws should be cleaned of oil, fuel and residue of cleaning agents. Note! High-pressure water jet cleaners (steam cleaners) can damage the coating. Do not use high-pressure water jet cleaners during the first two months after commissioning (or after recoating). Observe the prescribed safety distances. Before cleaning the machine: Before cleaning the machine with water or with a steam cleaner (high-pressure water jet cleaner), carry out the following tasks to protect the equipment against penetrating water. Lubricate all bearing points, bolt connections and the slewing ring; if necessary, use the central lubrication system to do this. Cover or seal all openings that must be protected against penetrating water for safety reasons (particularly at risk of damage are electric motors, electric components, switch cabinets, plug connections, measuring sensors and air filters). Cleaning: Use flint-free cleaning cloths. Do not use aggressive detergents or flammable liquids. When cleaning the engine compartment, ensure that the temperature sensor of the fire alarm and extinguishing systems (if installed) are not accidentally brought into contact with the hot cleaning solution, After cleaning: Remove all seals and covers. Check all fuel, engine oil and hydraulic lines for leakage, loose connections, chaffing and damage. Repair any defects without delay. Lubricate all bearing points, pin connections and the slewing ring to remove any water that might have been penetrated. If required, renew the preservation layer (anti-corrosion protection) on components and surfaces.

5.3 Care for rubber components The service life of rubber seals can be prolonged by treating them with a rubber care product.

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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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