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12157
Lincoln Electric 12157 Manuals
Manuals and User Guides for Lincoln Electric 12157. We have
1
Lincoln Electric 12157 manual available for free PDF download: Service Manual
Lincoln Electric 12157 Service Manual (86 pages)
Brand:
Lincoln Electric
| Category:
Welding System
| Size: 2 MB
Table of Contents
Table of Contents
6
Ranger® 305G Efi
6
Service Manual
6
Troubleshooting & Repair
8
How to Use Troubleshooting Guide
8
Pc Board Troubleshooting Procedures
9
Troubleshooting Guide
10
Test Procedures
28
Case Cover Removal and Replacement Procedure
28
Chopper Module Capacitor Discharge Procedure
30
Brush and Slip Ring Service Procedure
32
Rotor Resistance and Ground Test Procedure (Static)
34
Rotor Resistance and Ground Test Procedure (Dynamic) (also Refered to as Flying Resistance Test)
36
Rotor Voltage Test Procedure
37
Flashing Voltage Test Procedure (Engine Not Running)
40
Stator Voltage Test Procedure
43
Stator Short Circuit & Ground Test Procedure
46
Output Rectifier Bridge Test Procedure
49
Chopper Module Function Test Procedure
51
Chopper Module Resistance Test Procedure
53
Weld Control Board Pwm Gate Signal Test Procedure
55
Weld Control Feedback Test Procedure
58
Control Potentiometer and Mode Switch Resistance Test Procedure
61
Remote Receptacle Resistance Test Procedure
64
Idle Solenoid Test Procedure
67
Removal and Replacement Procedures
69
Output Rectifier Bridge and Choke Removal and Replacement Procedure
69
Field Bridge Rectifier Removal and Replacement Procedure
73
Weld Control Board Removal and Replacement Procedure
75
Chopper Module Board Removal and Replacement Procedure
77
Idle Solenoid Removal and Replacement Procedure
80
Stator and Rotor Removal and Replacement Procedure
82
Retest after Repair
86
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