Liebherr Hydraulic excavator R 974 C Operating manual - PDF DOWNLOAD

Page 210

Control and operation

Operating manual

Installation and removal of attachment parts

Dismounting a bucket Position the bucket to be attached in such a way that its entire lower part is laying on the ground. Remove the covers 5 and 6. Remove the protection rings 8 of all the bearing points and draw the O-rings 9 up onto the bushing 1.1 on the bucket side. Drive out the pins 3 and 4. If necessary, lift the attachment slightly to remove the pin 4. Take off the O-rings 9 and if necessary replace them.

Attaching a new bucket Position the bucket 1 so that the flat part of the bucket rests on the ground. Draw the O-rings 9 up onto the bushing 1.1 of the digging bucket, as well on bearings bucket to stick as on bearings bucket to connecting link 7. Start the engine and move the attachments until the stick and bucket bore holes A align. Insert pin 4 and reinstall the covers 6 with O-rings. Slowly extend the stick cylinder until the bore of the connecting link 7 is exactly between bore holes B. Insert pin 3 and reinstall the covers 5 with O-rings. Slip the O-rings 9 laterally until they are in the grooves between bushings 1.1 and 2.1 (see detail D) and install the two piece protection rings 8. Lubricate all greasing points of pins 3 and 4 directly or with the automatic grease system (if mounted) until clean grease comes out of the greasing points. Note! After installation of a new digging bucket, the restrictor check valves 222 and 232 for stick, respectively bucket tilt cylinders must be eventually readjusted so to have the correct velocity of the working attachment (due to weight differences of the digging bucket).If necessary, consult a LIEBHERR mechanic. In particular on machines, which are delivered without digging bucket or grapple, this restrictor check valves must be (if mounted) adjusted after installation of the digging tool, so to avoid uneven or jerky movements of the attachment parts.

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3 - 120

MJFCIFSS

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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