MTU 20 V 4000 C22 Operations Instructions Page 124
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- Table of contents
- TROUBLESHOOTING
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7.19.6 Battery-charging generator drive – Drive belt replacement
Preconditions
☑Engine is stopped and starting disabled.
Special tools, Material, Spare parts
Designation / Use Part No. Qty.
Drive belt
(→ Spare Parts Catalog)
Note: In the event of drive belt failure during engine operation fit a new drive belt as quickly as possible. Non-
compliance with these instructions may lead to severe consequential damage to drive unit and gear
train, since pretension by the drive belt is no longer provided. Therefore, engine operation without drive-
belt connection is not allowed.
Battery-charging generator drive
– Drive belt replacement
1. Remove guard cover.
2. Loosen locknut (2) and screws (1).
3. Release drive belt with tensioning nut (3)
and take off belt.
4. Clean belt pulleys.
5. Fit new drive belt.
6. Tension drive belt with tensioning nut (3)
and check belt tension (→ Page 122).
7. Tighten locknut (2).
8. Tighten screws (1).
9. Install guard cover.
10. Check belt tension after 30 minutes and
again after 8 hours engine runtime.
124 | Task Description | M015675/06E 2013-04
TIM-ID: 0000000965 - 001
- Operating Instructions 1
- Table of Contents 3
- 1 Safety 5
- Personnel requirements 6
- 1.3 Transport 7
- Transport 8
- TIM-ID: 0000004012 - 001 9
- Operation 10
- TIM-ID: 0000040535 - 001 11
- Welding work 12
- Working with batteries 12
- Fire prevention 14
- Used oil 14
- Safety notices 16
- 2 General Information 17
- 2.2 Engine layout 18
- TIM-ID: 0000002072 - 002 19
- Engine model designation 20
- TIM-ID: 0000012921 - 003 21
- COMBUSTION AIR / EXHAUST GAS 25
- COOLING SYSTEM (HT circuit) 25
- COOLING SYSTEM (LT circuit) 25
- LUBE OIL SYSTEM 25
- FUEL SYSTEM 26
- GENERAL OPERATING DATA 26
- CAPACITIES 26
- WEIGHTS / MAIN DIMENSIONS 26
- ACOUSTICS 27
- 3.2 Firing order 28
- 3.3 Main engine dimensions 29
- 4 Operation 30
- Preparation 32
- Start engine 32
- 4.4 Operational checks 33
- Stop engine 34
- 4.7 Cleaning the plant 36
- 5 Maintenance 37
- 6 Troubleshooting 38
- TIM-ID: 0000002541 - 002 39
- Component Cause Action 40
- 6.2 ECU 4 alarms 41
- TIM-ID: 0000003161 - 001 42
- 7 Task Description 52
- Barring engine manually (tool 53
- TIM-ID: 0000000950 - 003 54
- TIM-ID: 0000003285 - 003 57
- 7.3 Crankcase Breather 59
- Checking diaphragm 60
- Clean crankcase breather 61
- Clean filter element 62
- TIM-ID: 0000003532 - 003 64
- Installing grounding device 66
- Replace carbon brush 67
- 7.5 Valve Drive 68
- Checking valve-bridge balance 70
- TIM-ID: 0000004355 - 001 71
- Adjusting valve clearance 73
- Removing cylinder head cover 74
- 7.6 Injection Pump / HP Pump 75
- HP pump – Relief bore check 76
- 7.7.1 Injector – Replacement 77
- Remove injector 79
- Install injector 80
- TIM-ID: 0000000952 - 010 81
- 7.8 Fuel System 83
- 7.9 Fuel Filter 84
- 7.9.2 Draining fuel prefilter 85
- 7.10 Charge-Air Cooling 88
- 7.11 Air Filter 89
- Checking signal ring position 92
- 7.12 Starting Equipment 93
- TIM-ID: 0000006161 - 004 94
- 7.14 Oil Filtration / Cooling 96
- TIM-ID: 0000006401 - 006 97
- Removing strainer 99
- Checking strainer 100
- Cleaning strainer 100
- Installing strainer 100
- Preconditions 101
- TIM-ID: 0000000934 - 012 102
- Engine coolant change 104
- Engine coolant – Draining 105
- Preparatory steps 105
- Filling with coolant using a 107
- Final steps 107
- TIM-ID: 0000000961 - 010 108
- 7.16 Low-Temperature Circuit 111
- Charge-air coolant – Change 112
- Charge-air coolant – Draining 113
- Charge-air coolant pump – 116
- Checking pressure relief port 116
- Engine mounting – Check 117
- 7.18 Belt Drive 118
- 7.19.3 Generator – Cleaning 121
- Adjusting belt tension 122
- Checking drive belt tension 123
- – Drive belt replacement 124
- 7.20 Fan Drive 125
- Adjusting drive belt tension 126
- Replacing drive belt 127
- 7.21.1 Engine wiring – Check 128
- TIM-ID: 0000000948 - 011 129
- Checking engine control unit 130
- 8 Appendix A 131
- TIM-ID: 0000000858 - 011 132
- Local support 134
- 24h hotline 134
- Spare parts service 134
- 9 Appendix B 135
- DCL-ID: 0000014250 - 002 136
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