Table Of Contents; Sae-300® He; Service Manual - Lincoln Electric SAE-300 HE Service Manual

LINCOLN ELECTRIC SAE-300® HE Service Manual

SAE-300® HE

Service Manual

Last update: 2018/07/01
SAE-300® HE ............................................................................................................................................ 1
Service Manual ........................................................................................................................................ 1
Theory of Operation ................................................................................................................................ 3
AUTOMATIC ENGINE IDLE SYSTEM ........................................................................................................... 5
EXCITER / AUXILIARY ALTERNATOR OPERATION ...................................................................................... 6
EXCITER / AUXILIARY ALTERNATOR OPERATION (Continued) ................................................................... 7
WELDER GENERATOR AND EXCITOR ........................................................................................................ 8
WELDING GENERATOR OPERATION (Continued) ...................................................................................... 9
WELDING GENERATOR OPERATION (Continued) .................................................................................... 10
Troubleshooting & Repair ...................................................................................................................... 11
HOW TO USE TROUBLESHOOTING GUIDE .............................................................................................. 11
PC BOARD TROUBLESHOOTING PROCEDURES ........................................................................................ 12
Troubleshooting guide ........................................................................................................................... 13
Test Procedures ..................................................................................................................................... 26
BRUSH AND SLIP RING SERVICE PROCEDURE (EXCITER / AUXILIARY POWER ALTERNATOR) .................... 26
EXCITER ROTOR VOLTAGE TEST PROCEDURE .......................................................................................... 28
EXCITER ROTOR RESISTANCE AND GROUND TEST PROCEDURE (EXCITER / AUXILIARY POWER
ALTERNATOR) ....................................................................................................................................... 30
FLASHING VOLTAGE TEST PROCEDURE ................................................................................................... 32
EXCITER STATOR SHORT CICUIT AND GROUND TEST PROCEDURE ........................................................... 34
WELDING GENERATOR BRUSH AND COMMUTATOR INSPECTION AND SERVICE PROCEDURE .................. 35
WELD CIRCUIT GROUND AND SHORT CIRCUIT TEST PROCEDURE ............................................................ 38
SHUNT FIELD COIL RESISTANCE AND GROUND TEST PROCEDURE ........................................................... 40
SHUNT FIELD CIRCUIT VOLTAGE TEST PROCEDURE ................................................................................. 41
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