Claas Forage Harvesters MAN industrial diesel engines Repair Manual – PDF DOWNLOAD

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Claas Forage Harvesters MAN industrial diesel engines Repair Manual – PDF DOWNLOAD

 IMAGES OF MANUAL:

THE DESCRIPTION:

Claas Forage Harvesters MAN industrial diesel engines Repair Manual – PDF DOWNLOAD

FOREWORD
This repair manual is intended to provide assistance in performing repairs properly. The technical details were
correct at the time of going to press.
This publication assumes that persons who use it possess the necessary technical knowledge.
Pictures and the corresponding descriptions are typical snapshots; they do not always correspond to the unit in
question or its peripherals, but this does not necessarily mean they are incorrect. In cases such as these, plan
and execute the repair measures accordingly.
Repair work on complex attachment units should be entrusted to our customer service or to the customer
service of the manufacturing company. These units are mentioned specifically in the text.
Important instructions concerning technical safety and the safety of personnel are specifically highlighted,
as indicated below.

TABLE OF CONTENTS:

Claas Forage Harvesters MAN industrial diesel engines Repair Manual – PDF DOWNLOAD

IMPRINT………………………………………………………………… 4
FOREWORD……………………………………………………………….. 5
ABBREVIATIONS…………………………………………………………… 8
1. INTRODUCTION…………………………………………………………. 10
1.1 Safety instructions………………………………………………. 10
1.2 Engine overview………………………………………………….. 17
2 SYSTEM DESCRIPTION…………………………………………………….. 18
2.1 General…………………………………………………………. 18
2.2 Structure and mode of function…………………………………….. 18
2.3 Schematic diagram of EDC………………………………………….. 19
2.4 Schematic diagram of SCR dosing system……………………………… 20
2.5 System diagram of inline engine with SCR in accordance with US Tier 4….. 21
2.6 System diagram of inline engine in accordance with EU Stage III A……… 22
2.7 System diagram of V-engine with SCR………………………………… 23
2.8 Overview of CAN network and power supply……………………………. 24
2.8.1 Inline engine (6 cylinder)…………………………………… 24
2.8.2 V-engine (12-cylinder)………………………………………. 25
2.9 Overview of full EDC 17 Master / Slave……………………………… 26
3 EDC17 ENGINE CONTROL…………………………………………………… 27
3.1 Layout of engine control unit……………………………………… 27
3.2 Functional description……………………………………………. 28
3.3 Plug connector A pin assignment……………………………………. 29
3.4 Plug connector B pin assignment……………………………………. 31
3.5 Plug connector C pin assignment……………………………………. 33
3.6 Plug connector D pin assignment……………………………………. 37
4 FUNCTIONAL DESCRIPTION OF COMPONENTS…………………………………….. 38
4.1 High-pressure pump CP3.4………………………………………….. 38
4.2 Proportional valve……………………………………………….. 39
4.3 High-pressure accumulator (rail)…………………………………… 40
4.4 Pressure-limiting valve…………………………………………… 41
4.5 B487 Rail pressuresensor………………………………………….. 42
4.6 Y341 Injector cylinder 1………………………………………….. 43
4.7 B488 Speed increment sensor……………………………………….. 44
4.8 B489 Speed segment sensor…………………………………………. 45
4.9 B104 Oil pressure sensor………………………………………….. 46
4.10 B377 Fuel pressuresensor…………………………………………. 47
4.11 B323 Air flow meter……………………………………………… 48
4.12 B623 Charging pressure/temperature sensor………………………….. 49
4.13 B123 Charge air temperature sensor………………………………… 50
4.14 B124 coolant temperature sensor…………………………………… 51
4.15 Fuel temperature sensor………………………………………….. 52
4.16 Oil temperature sensor…………………………………………… 53
4.17 B696 EGR temperature sensor………………………………………. 54
4.18 B634 Exhaust temperature sensor downstream of SCR catalytic converter…. 55
4.19 A1191 Exhaust gas thermocouples…………………………………… 56
4.20 M289 EGR servomotor……………………………………………… 57
4.21 B322 Lambda probe……………………………………………….. 58
4.22 A808 Supply module………………………………………………. 59
4.23 A1279 Dosing unit……………………………………………….. 60
4.24 Y437 Tank heater valve (AdBlue®/DEF)………………………………. 61
4.25 A1192 AdBlue®/DEF combination sensor (example)……………………… 62
4.26 B1055 NOx sensor I, untreated emissions……………………………. 63
4.27 B994 NOx sensor II diagnostics……………………………………. 64
4.28 A1154 electronic relay for flame-start system………………………. 65
4.29 Fuel pre-filter water level prove…………………………………. 66
4.30 Coolant level sensor expansion tank (example)………………………. 67
4.31 VTG actuator and speed sensor (turbocharger)……………………….. 68
5 INSTALLATION LOCATIONS OF COMPONENTS…………………………………….. 69
5.1 A435 Control unit EDC17…………………………………………… 69
5.2 High-pressure pump CP3.4………………………………………….. 70
5.3 Proportional valve……………………………………………….. 71
5.4 High-pressure accumulator (rail)…………………………………… 72
5.5 Pressure-limiting valve…………………………………………… 73
5.6 B487 Rail pressure sensor…………………………………………. 74
5.7 Y341 Injector cylinder 1………………………………………….. 75
5.8 B488 Speed increment sensor……………………………………….. 76
5.9 B489 Speed segment sensor…………………………………………. 77
5.10 B104 Oil pressure sensor…………………………………………. 78
5.11 B377 Fuel pressuresensor…………………………………………. 79
5.12 B323 Air flow meter……………………………………………… 80
5.13 B623 Charging pressure/temperature sensor………………………….. 81
5.14 B123 Charge air temperature sensor………………………………… 82
5.15 B124 coolant temperature sensor…………………………………… 83
5.16 Fuel temperature sensor………………………………………….. 84
5.17 Oil temperature sensor…………………………………………… 85
5.18 VTG turbocharger………………………………………………… 86
5.19 B696 EGR temperature sensor………………………………………. 87
5.20 B634 Exhaust temperature sensor downstream of SCR catalytic converter…. 88
5.21 A1191 Exhaust gas thermocouples…………………………………… 89
5.22 M289 EGR servomotor……………………………………………… 90
5.23 B322 Lambda probe……………………………………………….. 91
5.24 A808 AdBlue®/DEF supply module®…………………………………… 92
5.25 Dosing unit…………………………………………………….. 93
5.26 Y437 Tank heater valve (AdBlue®/DEF)………………………………. 94
5.27 A1192 AdBlue®/DEF combination sensor………………………………. 95
5.28 B1055 NOx sensor I, untreated emissions……………………………. 96
5.29 B994 NOx sensor II diagnostics……………………………………. 97
5.30 A1154 electronic relay for flame-start system………………………. 98
6 DIAGNOSTICS with MAN-cats® III………………………………………….. 99
6.1 General…………………………………………………………. 99
6.1.1 Diagnostic socket HD-OBD (X200)………………………………. 99
6.1.2 Pin assignment……………………………………………… 99
6.1.3 Fault storage……………………………………………….100
6.1.4 Display in MAN-cats®…………………………………………102
6.1.5 Control unit identification…………………………………..103
6.2 Test step list, EDC 17…………………………………………….104
6.3 MAN-cats® III diagnostic memory…………………………………….110
6.3.1 Status displays, FMI (Failure Mode Identification)………………110
6.4 Troubleshooting in the CAN-network for D26 engines……………………111
6.5 Troubleshooting in CAN network for D28 V-engines……………………..116
6.6 Troubleshooting with MAN-cats® III………………………………….123
6.6.1 Monitoring………………………………………………….123
6.6.1.1 Freely definable monitoring……………………………..124
6.6.2 Actuator tests………………………………………………124
6.6.2.1 Charge air throttle valve……………………………….124
6.6.2.2 EGR flap………………………………………………124
6.6.2.3 Fan test………………………………………………124
6.6.3 Engine test routines…………………………………………125
6.6.4 Rev-up test…………………………………………………125
6.6.5 Compression test…………………………………………….128
6.6.6 Cylinder shut-off test……………………………………….130
6.6.7 High-pressure test…………………………………………..131
6.6.8 Injector test……………………………………………….132
6.6.9 Resetting the pressure-limiting valve………………………….134
6.6.10 Pressure-limiting valve test…………………………………134
6.6.11 Reading/writing IQA data…………………………………….136
6.6.12 SCR dosing quantity test…………………………………….137
6.6.13 Resetting SCR system faults………………………………….138
6.6.14 DEF (AdBlue®) filter change service routine……………………139
6.6.15 System test for SCR dosing system…………………………….140
6.6.16 Inducement counter reset…………………………………….141
7 Troubleshooting in SCR dosing system……………………………………..142
7.1 Speed plausibility………………………………………………..143
7.2 Blocked pump……………………………………………………..144
7.3 Suction line leakage………………………………………………145
7.4 Blocked return……………………………………………………146
8 Fault overview for SCR dosing system……………………………………..147
9 SCR dosing system SPN list………………………………………………184
10 SPN list 6 cylinder……………………………………………………187
11 SPN list 12 cylinder…………………………………………………..239
12……………………………………………………………………..292
12 CIRCUIT DIAGRAMS………………………………………………………293
12.1 Brief overview plans……………………………………………..293
12.1.1 Brief overview plan, EDC17 electrics, engine D20/D26, page 1…….293
12.1.2 Brief overview plan, EDC17 electrics, engine D20/D26, page 2…….295
12.1.3 Brief overview plan, fuel engine D20/D26………………………297
12.1.4 Brief overview plan, EDC17 electrics, engine D2862 LE1xx………..299

PLEASE NOTE:

• This is the exact same manual used by your dealerships to service your vehicle.
• The same can be yours in the next 2-3 minutes as you will be directed to the download page immediately after paying for the manual.
• For any questions/doubts regarding your purchase, please do not hesitate to contact [email protected]

S.M.