Repair Manual Mobile Generator - Wacker Neuson

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ECM/Sensor Troubleshooting G 70 Continued from the previous page. 5. Check the voltage between ECM pin 7 plug 1 (red wire #53) and pin 8 plug 1 (black wire #59). Is at least 9.8 VDC measured? Yes ____ No ____ Your reading Continue. Repair red wire #53 and/or black wire #59. 6. Open the engine compartment and locate the 10A fuse. Is the 10A fuse OK? Yes ____ No ____ Continue. Replace the fuse with one of the same size and rating. Check the function of the main circuit breaker. The shunt of the main circuit breaker is most likely the cause of a fuse failure. See Section 5.10 Checking the Main Circuit Breaker. 7. Check the voltage between ECM pin 5 plug 2 (red wire #18) and ground. Is at least 9.8 VDC measured? Yes ____ No ____ Your reading Power to the ECM is OK. Incoming power to the ECM has now been checked. wc_tx000956gb.fm 40 Check continuity of red wire #18 between ECM and fuse box. Also check red wire #48 between fuse box and B+ terminal strip. Repair the wiring as needed.
G 70 ECM/Sensor Troubleshooting 5.2 Checking Outgoing Power From the ECM Prerequisites Fully-charged (12+ Volts) battery At least 9.8 VDC incoming power to ECM on red wires #18 and #53 Procedure Follow the procedure below to check the outgoing power from the ECM. 1. Open the control panel and locate the ECM. 2. Place the START/RUN switch in the ON position. 3. Check the voltage between pin 1 plug 2 (yellow wire #63) and ground. Is at least 9.8 VDC measured? Yes ____ No ____ Your reading Continue. The ECM has failed. Call Wacker Neuson Service. 4. Check the voltage between pin 2 plug 2 (violet wire #64) and ground. Is at least 9.8 VDC measured? Yes ____ No ____ Outgoing power from the ECM is OK. The ECM has failed. Outgoing power from the ECM has now been checked. wc_tx000956gb.fm 41
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Page 3 and 4: Mobile Generator Repair Foreword Th
Page 5 and 6: G 70 Table of Contents 1 Safety Inf
Page 7 and 8: G 70 Table of Contents 8.13 Checkin
Page 9 and 10: G 70 Safety Information 1 Safety In
Page 11 and 12: G 70 Safety Information 1.1.17 ALWA
Page 13 and 14: G 70 Safety Information 1.2.11 ALWA
Page 15 and 16: G 70 Safety Information 1.4 Towing
Page 17 and 18: Mobile Generator Theory of Operatio
Page 23 and 24: Mobile Generator Electrical Testing
Page 25 and 26: Mobile Generator Repair ECM Backgro
Page 39: G 70 ECM/Sensor Troubleshooting 5.1
Page 43 and 44: G 70 ECM/Sensor Troubleshooting Con
Page 45 and 46: G 70 ECM/Sensor Troubleshooting Con
Page 47 and 48: G 70 ECM/Sensor Troubleshooting 5.6
Page 53 and 54: Mobile Generator Repair John Deere
Page 55 and 56: G 70 Troubleshooting Engine Start S
Page 67 and 68: G 70 Output Voltage Troubleshooting
Page 83 and 84: G 70 Disassembly and Assembly 9 Dis
Page 85 and 86: G 70 Disassembly and Assembly Conti
Page 87 and 88: G 70 Disassembly and Assembly 9.6 I
Page 89 and 90: G 70 Disassembly and Assembly Conti
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G 70 Disassembly and Assembly Conti
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G 70 Disassembly and Assembly 9.9 R
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G 70 Schematics 10.2 Engine Wiring
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G 70 Schematics 10.4 Generator Wiri
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G 70 Technical Data 11.2 Generator
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G 70 Technical Data 11.4 Dimensions
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Threadlockers and Sealants Threadlo
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Torque Values Torque Values (contin
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