New Holland MH6.6 MH8.6 MH6.6 Industry MH8.6 Tier III Industry Service Repair Manual
FILE DETAILS:
New Holland MH6.6 MH8.6 MH6.6 Industry MH8.6 Tier III Industry Service Repair Manual
Language : English
Pages : 783
Downloadable : YES
Format : PDF
Size : 61.1 MB
Print No. 87677418A
DESCRIPTION:
New Holland MH6.6 MH8.6 MH6.6 Industry MH8.6 Tier III Industry Service Repair Manual
GENERAL SAFETY INSTRUCTIONS :
Carefully read this Manual before proceeding with maintenance, repairs, refuelling or other machine operations. Repairs have to be carried out only by authorized and instructed staff; specific precautions have to be taken when grinding, welding or when using mallets or heavy hammers. Not authorized persons are not allowed to repair or carry out maintenance on this machine. Do not carry out any work on the equipment without prior authorization. Ask your employer about the safety instructions in force and safety equipment.
- Nobody is allowed to seat on the operator’s place during machine maintenance unless he is a qualified operator helping with the maintenance work. If it is necessary to move the equipment to carry out repairs or maintenance, do not lift or lower the equipment from any other position than the operator’s seat.
- Never carry out any operation on the machine when the engine is running, except when specifically indicated. Stop the engine and ensure that all pressure is relieved from hydraulic circuits before removing caps, covers, valves, etc. All repair and maintenance operations should be carried out with the greatest care and attention.
- Service stairs and platforms used in a workshop or in the field should be built in compliance with the safety rules in force. Any functional disorders, especially those affecting the safety of the machine, should therefore be rectified immediately.
TABLE OF CONTENTS:
New Holland MH6.6 MH8.6 MH6.6 Industry MH8.6 Tier III Industry Service Repair Manual
INDEX
SECTION 01 – SAFETY PRECAUTIONS
1 GENERAL SAFETY INSTRUCTIONS 2
2 USE INSTRUCTION 11
SECTION 02 – CONTROLS AND INSTRUMENTS
1 SWITCHES AND PUSH-BUTTONS 1
2 CONTROLS AND PEDALS 11
3 MULTI-FUNCTION DISPLAY 15
SECTION 03 – TECHNICAL SPECIFICATIONS
1 MAIN COMPONENTS 1
2 DIMENSIONS – OPERATING WEIGHTS 4
3 DIGGING PERFORMANCE 14
4 LIFTING CAPACITIES 24
5 HYDRAULIC SYSTEM 30
6 ROTATION 31
7 TRAVEL 32
71 TYRES 33
8 BRAKES 33
9 STEERING 33
10 ELECTRICAL SYSTEM 34
11 BUCKETS 35
12 TIGHTENING TORQUES 36
13 CENTRALIZED LUBRICATION PUMP (OPTIONAL) 36
14 FUEL SYSTEM 36
15 ENGINE 37
16 SUPPLY SUMMARIZING CHART 38
SECTION 04 – UPPER STRUCTURE
1 MAIN COMPONENTS 1
2 SLEWING BEARING 3
3 ROTATION GEARMOTOR 7
31 DISASSEMBLY AND ASSEMBLY 12
4 MULTI-COOLER 13
41 TECHNICAL SPECIFICATIONS 14
5 HYDRAULIC PUMPS 17
6 MUFFLER 18
7 HYDRAULIC OIL TANK 19
8 AIR FILTER 25
9 COUNTERWEIGHT 25
10 FUEL SYSTEM 26
11 CAB AND OPERATOR’S SEAT 32
111 CAB AT VARIABLE HEIGHT (MH 66 Industry – MH 86 Industry) 43
12 CENTRALIZED LUBRICATION PUMP 44
SECTION 05 – UNDERCARRIAGE
1 UNDERCARRIAGE COMPONENTS 1
2 REAR RIGID AXLE 2
21 TECHNICAL SPECIFICATIONS 3
22 DISASSEMBLY AND ASSEMBLY 6
23 DISASSEMBLY AND ASSEMBLY 8
24 TROUBLESHOOTING 87
25 SPECIAL TOOLS 89
3 TRAVEL MOTOR 90
31 TECHNICAL SPECIFICATIONS 90
32 DISASSEMBLY AND ASSEMBLY 91
33 DISASSEMBLY AND ASSEMBLY 92
4 CARDAN SHAFT 103
41 DISASSEMBLY AND ASSEMBLY 104
5 FRONT STEERING AXLE 106
51 TECHNICAL SPECIFICATIONS 107
52 DISASSEMBLY AND ASSEMBLY 110
53 DISASSEMBLY AND ASSEMBLY 112
54 TROUBLESHOOTING 184
55 SPECIAL TOOLS 186
6 WHEELS AND TYRES 187
7 BLADE 191
71 BLADE CYLINDER 193
8 AXLE FLOATING LOCKING CYLINDERS 201
81 TECHNICAL SPECIFICATIONS 202
82 DISASSEMBLY AND ASSEMBLY 203
83 AIR BLEEDING 204
84 DISASSEMBLY AND ASSEMBLY 205
85 TROUBLESHOOTING 207
9 STABILIZERS 208
91 STABILIZER CYLINDERS 211
92 TROUBLESHOOTING 221
10 LEFT LADDER 223
11 RIGHT LADDER AND TOOL STORAGE BOX 224
12 ROTARY CONTROL VALVE AND ELECTRIC ROTOR 225
121 TECHNICAL SPECIFICATIONS 225
122 DISASSEMBLY AND ASSEMBLY 226
123 DISASSEMBLY AND ASSEMBLY 227
124 ELECTRIC ROTOR 229
SECTION 06 – FRONT ATTACHMENT
1 TYPES OF FRONT ATTACHMENT 2
2 HYDRAULIC CYLINDERS 4
21 BOOM CYLINDER 6
22 DIPPER CYLINDER (MH 66 – MH 86) 16
23 DIPPER CYLINDER (MH 66 Industry – MH 86 Industry) 26
24 SPECIAL TOOLS 55
3 BUCKETS MH 66 – MH 86 56
4 MH 66 – MH 86 QUICK COUPLER 60
5 CLAMSHELL BUCKET 64
SECTION 07 – STEERING SYSTEM
1 OPERATION 1
2 POWER STEERING 3
21 DISASSEMBLY AND ASSEMBLY 5
3 PRIORITY VALVE 23
4 TROUBLESHOOTING 24
SECTION 08 – BRAKE SYSTEM
1 OPERATION 1
2 SERVICE BRAKE 4
3 PARKING BRAKE 7
4 PEDAL BRAKE VALVE 8
5 ACCUMULATORS 9
6 TROUBLESHOOTING 11
SECTION 09 – HYDRAULIC SYSTEM
1 HYDRAULIC SYSTEM 1
2 HYDRAULIC SYSTEM DIAGRAMS 5
21 HYDRAULIC SYSTEM DIAGRAMS – UPPER STRUCTURE 5
22 HYDRAULIC SYSTEM DIAGRAMS – UNDERCARRIAGE 21
23 HYDRAULIC SYSTEM DIAGRAMS BLADE AND/OR STABILIZERS 25
3 HYDRAULIC PUMPS 28
4 UPPER STRUCTURE CONTROL VALVE 48
5 UNDERCARRIAGE CONTROL VALVE 60
6 PILOT CONTROL ASSY 62
7 ROTATION SYSTEM 71
8 TRAVEL 75
9 STABILIZATION HYDRAULIC SYSTEM 87
10 BOOM HYDRAULIC SYSTEM 93
11 HYDRAULIC SYSTEM 100
12 HYDRAULIC SYSTEM OF DIPPER 106
13 HYDRAULIC SYSTEM OF PLACING BOOM 110
14 HYDRAULIC SYSTEM WITH COMBINATION OF DIFFERENT FUNCTIONS
(BOOM, PLACING BOOM, DIPPER AND BUCKET) 117
15 HYDRAULIC SYSTEM OF HAMMER (WITH PLACING BOOM) 119
16 HYDRAULIC SYSTEM OF HAMMER AND SHEARS (WITH PLACING BOOM) 122
17 HYDRAULIC SYSTEM OF SHEARS (WITH PLACING BOOM) 127
18 HYDRAULIC SYSTEM OF HAMMER (WITH MONOBOOM) 130
19 HYDRAULIC SYSTEM OF HAMMER AND SHEARS (WITH MONOBOOM) 133
20 HYDRAULIC SYSTEM OF SHEARS (WITH MONOBOOM) 138
21 TROUBLESHOOTING 141
SECTION 10 – ELECTRICAL SYSTEM
1 ELECTRICAL DIAGRAMS 1
11 MH 66 – MH 86 1
12 MH 66 Industry – MH 86 Industry 39
2 FUSES 77
3 BATTERIES 80
4 BULBS 84
5 TROUBLESHOOTING 88
SECTION 11 – ELECTRONICS
1 MAIN COMPONENTS 1
11 ELECTRICAL POWER SUPPLY DIAGRAM 3
2 COMPONENTS OF LINE 1 6
3 COMPONENTS OF LINE 2 10
31 TRAVEL PEDAL 16
32 ATTACHMENT PEDAL (PLACING BOOM AND HAMMER) 17
33 ELECTRO-HYDRAULIC SYSTEM 18
34 POWER CONTROL SYSTEM 19
4 ENGINE SPEED ACTUATOR 26
5 COOLANT TEMPERATURE DETECTION 27
6 CHARGE AIR TEMPERATURE DETECTION 28
7 HYDRAULIC OIL TEMPERATURE DETECTION 29
8 PROPORTIONAL VALVE – FAN MOTOR 30
9 PROPORTIONAL VALVES – CONTROL BLOCK 31
SECTION 12 – CALIBRATION
1 NECESSARY OPERATIONS BEFORE CALIBRATION 1
2 DISPLAY: CALIBRATION MENU 3
3 CALIBRATIONS WITH THE ENGINE RUNNING 4
31 VDO CALIBRATION 6
32 POWER CALIBRATION 8
33 MAIN VALVE CALIBRATION (CONTROL VALVE) 10
34 TRAVEL CALIBRATION 13
35 PUMP DELIVERY CALIBRATION 15
36 ROTATION PUMP CALIBRATION 18
37 AUXILIARY PRESSURE CALIBRATION 20
4 CALIBRATIONS WITH THE ENGINE STOPPED 22
41 CALIBRATIONS, ALL SOLENOID VALVES, MAIN PUMP, ROTATION PUMP,
AUXILIARY PRESSURE 24
42 MAIN VALVE CALIBRATION (CONTROL VALVE) 26
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PLEASE NOTE:
- This is not a physical manual but a digital manual – meaning no physical copy will be couriered to you. The manual can be yours in the next 2 mins as once you make the payment, you will be directed to the download page IMMEDIATELY.
- This is the same manual used by the dealers inorder to diagnose your vehicle of its faults.
- Require some other service manual or have any queries: please WRITE to us at [email protected]