Section 9 − Troubleshooting - Miller Electric 145 DXR, 145 Owner's Manual

SECTION 9 − TROUBLESHOOTING
9-1. Troubleshooting
A. Welding
Trouble
No weld output or generator power out-
put at ac receptacles.
No weld output; generator power out-
put okay at ac receptacles.
Low weld output.
High weld output.
Erratic weld output.
B. Generator Power
Trouble
No output at generator power ac re-
ceptacles; no weld output.
No output at generator power ac re-
ceptacles; weld output okay.
High output at generator power ac
receptacles.
Be sure all equipment is disconnected from receptacles when starting unit.
Have Factory Authorized Service Agent check brushes, slip rings, rotor, stator, integrated rectifier
SR2, and Weld Output control R1.
Check Weld Output control setting.
Check weld connections.
Have Factory Authorized Service Agent check Weld Output control R1, stator, integrated rectifier
SR2, stabilizer DC-Z, main rectifier SR1, and reactor AC-Z
Check Weld Output control setting.
Check engine speed, and adjust if necessary (see Section 8-3 or 8-4).
Service engine air cleaner.
Check weld cable size and length.
Have Factory Authorized Service Agent check Weld Output control R1, stator, integrated rectifier
SR2, stabilizer DC-Z, main rectifier SR1, and reactor AC-Z
Check Weld Output control setting.
Check engine speed, and adjust if necessary (see Section 8-3 or 8-4).
Check Weld Output control setting.
Tighten and clean connections to electrode and workpiece.
Use dry, properly-stored electrodes for Stick welding.
Remove excessive coils from weld cables.
Clean and tighten connections both inside and outside welding generator.
Check engine speed, and adjust if necessary (see Section 8-3 or 8-4).
Check throttle/governor linkage for smooth, non-binding operation.
Be sure all equipment is disconnected from receptacles when starting unit.
Have Factory Authorized Service Agent check brushes, slip rings, rotor, stator, integrated rectifier
SR2, and Weld Output control R1.
Reset and check supplementary protector (see Section 7-1).
Check receptacle wiring and connections.
Have Factory Authorized Service Agent check stator windings and connections at terminal block 1T.
Check engine speed, and adjust if necessary (see Section 8-3 or 8-4).
.
Complete Parts List available at www.MillerWelds.com
Remedy
Remedy
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