Liebherr R 974 C Litronic 449 1010 1011 1057 1058 1084 1124 1137 1146 1152 Hydraulic Excavator Operating Manual SN 27700 – PDF DOWNLOAD

– The technical data.

– The safety requirements.

– The operating instructions.

–  The maintenance instructions.

1 Product description 1-1

11 Assembly – overview 1-1
111 Machine with backhoe attachment 1-1
112 Machine with shovel attachment 1-2
113 Uppercarriage 1-2
114 Undercarriage 1-3
12 Vibration emissions 1-3
13 Sound emission 1-5
14 EC Declaration of Conformity 1-6
15 Technical data 1-6

2 Safety instructions, Signs on the machine 2-1
21 Meaning of the symbols in this manual 2-1
22 Use in accordance with the regulations 2-2
23 Safety Instructions 2-2
24 Servicing the machine safely 2-14
25 Signs on the machine 2-20
251 Introduction 2-20
252 Arrangement of signage 2-21
253 Explanation of signage 2-22
254 Nameplates on the machine 2-27

3 Control and operation 3-1
31 Operating and control elements 3-1
311 Controls in the operator’s cab 3-1
312 The joysticks 3-3
313 Control unit 3-7
314 Monitoring display 3-12
315 Main screen 3-16
316 Controls on side control desks 3-38
31 7 Controls and instrumentation for optional equipments 3-40
318 Display for LIEBHERR particle filter (optional) 3-45
32 Access and equipment of the cab 3-46
321 Entering or leaving the cab 3-47
322 The safety lever 3-49
323 Operator’s seat 3-50
324 Windscreen 3-53
325 Sunshade 3-54
326 Emergency exit – rear window 3-55
32 7 Interior lighting 3-55
328 Fire extinguisher” 3-55
329 The heater and air conditioner 3-56
3210 Additional standstill heater (Option) 3-62
33 Setting the machine into operation 3-66
331 Before starting the machine 3-68
332 Turning on the electrical system 3-69
333 Starting the Diesel engine 3-70
334 Speed adjustment and operating modes 3-71
335 Notes after starting the engine 3-73
336 Warm-up phase for Diesel engine and hydraulic circuit 3-73
337 Switching the Diesel engine off 3-74
338 Starting aids 3-75
339 Jump start procedure 3-77
3310 Anti-theft device with code key (option) 3-77
3311 Immobilizer with electronic ignition key (option) 3-78
34 Working with the machine 3-80
341 The travel movements 3-85
342 Drive warning device (optional extra) 3-90
343 The uppercarriage swing movements 3-91
344 Working position 3-94
345 Working attachment control 3-95
346 Lowering the working attachment with the engine shut down 3-97
347 Control of a rotating device 3-97
348 Lifting magnet control system (optional equipment) 3-99
349 Control of special equipments via the additional pedals 3-100
3410 Commutation of the controls for an additional user AHS (special equipment) 3-103
3411 Special control system of the joysticks (Option) 3-104
3412 Cut off by end switches of attachment movements (option) 3-105
3413 Use of the excavator for lifting loads overhead 3-109
3414 Overload warning device (Option) 3-110
3415 Hydraulically adjustable cab (option) 3-111
35 Operating the excavator in safety modes 3-114
351 Board E52 for safety mode of Diesel engine & servo control 3-114
352 Safety operation of the main working pumps 3-117
353 Emergency attachment lowering with defective servo circuit 3-118
354 Emergency supply of the boom cylinders (optional) 3-119
355 Towing with the machine, emergency towing of the machine 3-121
36 Removal and installation of attachment parts 3-124
361 Removal and installation of a bucket 3-126
362 Attaching and dismounting the bucket with improved sealing 3-128
363 Attaching and dismounting the grab on stick 3-130
364 Attaching and dismounting the grab on the industrial stanchion 3-133
365 Attaching and dismounting the stick to the boom 3-135
366 Mechanical quick-change adapter (optional extra) 3-137
367 Hydraulic quick-change adapter (optional extra) 3-141
368 LIKUFIX – hydraulic coupling system (optional extra) 3-148
37 General working methods 3-151
371 Minimum impact working methods for your machine 3-151
3 7 2 Preparatory activities 3-151
373 Using a backhoe bucket 3-152
374 Loading a transport vehicle 3-154
3 7 5 Skimming 3-154
3 7 6 Using a clamshell bucket ( earthmoving attachment) 3-155
377 Using a multiple tine grapple (industrial attachment) 3-158
378 Using an hydraulic hammer 3-159
379 Working with a bottom dump bucket 3-160
38 Adjustment of undercarriage width (option) 3-162
381 Hydraulic adjustment of undercarriage width 3-162
39 Installing & removing the serial counterweight 3-163
310 Hydraulic removable counterweight 3-165
3101 Safety guidelines for lifting and lowering the counterweight 3-166
3102 Removal and lifting up of counterweight 3-166
311 Transport 3-172
3111 Transporting the excavator on flatbed trailers 3-173
3112 Loading the machine with a crane 3-175

4 Malfunctions 4-1
411 Electrical errors in the engine control system (PLD-CR) 4-2 ~
412 System errors in the electrical servo control circuit 4-5 ~
413 Communication and coding errors 4-8 ~~
414 Other electrical errors (general switches and transmitter circuits, ) 4-10 LL
I 415 Operation errors (also displayed as warning symbols in field SY) 4-12
42 Faults and remedies 4-14
421 Diesel engine and fuel system 4-14
422 Hydraulic system 4-15
423 Transmission 4-16
424 Electrical system 4-16
425 Work equipment 4-17
426 Heating/air-conditioning system 4-18
427 LIEBHERR particles filter system 4-19
43 Fuses and relays 4-21
431 Electrical power box E50 with main fuses 4-21
432 Control plate A1010 with fuses 4-22

5 Maintenance 5-1
51 Servicing the machine safely 5-1
52 Maintenance access doors 5-7
521 Overview of access doors 5-7
522 Door retaining rods 5-8
523 Opening, closing, locking the engine hood 21 5-9
53 Lubricants and operating fluids 5-10
531 General information on changing lubricants and operating fluids 5-10
532 Lubrication chart 5-11
533 Lubricants chart 5-12
534 Operating material chart 5-13
54 Lubricants and fluids specification 5-14
541 Diesel fuel 5-14
542 Lubricating oil for the Diesel engine 5-15
543 Coolant for the diesel engine 5-17
544 Hydraulic liquids 5-23
545 Lubricating grease and other lubricants 5-27
55 Diesel engine 5-28
551 Checking the oil level in the Diesel engine 5-28
552 Replacing the engine oil and the engine oil filter elements 5-29
553 Polyvee belt for the airco compressor and alternator drive 5-31
554 Lubricating the starter ring gear 5-32
555 Checking mounting bolts 5-34
556 Oil separator (old version) 5-35
557 Oil separator (new version from serial number 30111) 5-35
558 Heater flanges 5-37
559 Checking and adjustment of valve clearance 5-38
56 Cooling system 5-40
561 Checking and cleaning the cooling system 5-40
562 Checking the coolant level 5-40
563 Coolant antifreeze and anti-corrosion fluid 5-41
564 Changing the coolant 5-41
5 7 Fuel system 5-44
5 7 1 Refuelling 5-44
572 Electrical refuelling pump (optional extra) 5-45
573 Draining the fuel tank 5-48
574 Emptying and cleaning the fuel tank 5-48
5 7 5 Draining the fuel prefilter 5-49
5 7 6 Replacing the fuel filter elements 5-49
577 Bleeding the fuel system 5-52
58 Dry air filter 5-53
581 Changing the main element 5-55
582 Changing the safety element 5-56
583 Checking the intake air lines 5-56
59 LIEBHERR particles filter (In option) 5-57
591 Drain the condensation water: 5-57
592 Water separator maintenance: 5-57
510 Hydraulic system 5-58
5101 Depressurizing the hydraulic system 5-58
5102 Checking the oil level, emptying and refilling the hydraulic tank 5-59
5103 Checking and cleaning the oil cooler system 5-62
5104 Return filter 5-63
5105 Servofilter 5-64
5106 Replenishing oil filter in swing circuit 5-65
5107 Servo control circuit 5-65
5108 Air bleeding of the servo control chambers 5-66
5109 Bleeding the hydraulic pumps 5-66
51010 Bleeding the hydraulic cylinders 5-67
51011 Removing the suction hose to the pumps 5-69
51012 Breather filter on the hydraulic tank 5-70
51013 High pressure filters in working circuit 5-70
51014 Bypass oil filter for hydraulic system (Special equipment) 5-71
51015 Servicing the hydraulic cylinder 5-72
51016 Replacing hydraulic hoses 5-73
Oil changes on components 5-7 4
5111 General information 5-74
5112 Swing gear – Oil level check and oil change 5-75
5113 Travel gear oil change 5-76
5114 Splitterbox – Oil change 5-77
The track components 5-77
5121 Checking the mounting screws of the track components 5-78
5122 Checking the track chains tension 5-78
5123 Retensioning the track 5-80
5124 Releasing the track chain tension 5-80
5125 Cleaning the track components 5-81
24 V circuit 5-82
5131 General checks on the 24 V electrical system 5-82
5132 Batteries care 5-83
5133 Batteries switch 5-84
5134 Protection of the 24 V circuit during maintenance works 5-84
Heating/air-conditioning system 5-85
5141 Recirculated and fresh air filters 5-85
5142 Heating system 5-86
5143 Air-conditioning system 5-86
Greasing the machine 5-89
5151 The centralized lubrication system 5-89
5152 Operation of the full automatic system 5-91
5153 Emergency lubrication with defective lubrication system 5-93
5154 To refill a grease container 5-93
5155 Changes in the lubrication circuit 5-94
5156 Greasing the grab (optional extra) 5-95
Quick-change systems 5-96
5161 Greasing the mechanical quick-change adapter (optional extra) 5-96
5162 Hydraulic quick-change adapter (optional extra) 5-96
5163 LIKUFIX (optional extra) 5-97
Check mounting bolts for tightness 5-98
517 1 Mounting bolts of the counterweight 5-99
517 2 Mounting screws of the swing ring 5-99 ~
517 3 Mounting screws of the hydraulic oil and fuel tank 5-100
5174 Mounting bolts of the swing gear and motor 5-100 0q;
5 17 5 Mounting bolts central piece to side frames (option “removable side frames”) 5-100 i
Drive unit brakes and swing gear brakes 5-101 ~
General maintenance points 5-101 ~
5191 Replacing working parts 5-101 ~
5192 Checking or replacing the teeth on the bucket 5-102
5193 Welding work on the machine 5-104
520 Maintenance chart 5-106