Filter
Top Products
. Complete Parts List available at www.MillerWelds.com
OM-4417 Page 29
SECTION 9 − TROUBLESHOOTING
9-1. Troubleshooting
A. Welding
Trouble Remedy
No weld output or generator power out-
put at 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.
No weld output; generator power out-
put okay at ac receptacles.
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
Low weld output. 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
High weld output. Check Weld Output control setting.
Check engine speed, and adjust if necessary (see Section 8-3 or 8-4).
Erratic weld output. 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.
B. Generator Power
Trouble Remedy
No output at generator power ac re-
ceptacles; no weld output.
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.
No output at generator power ac re-
ceptacles; weld output okay.
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.
High output at generator power ac
receptacles.
Check engine speed, and adjust if necessary (see Section 8-3 or 8-4).