E-9
TROUBLE SHOOTING
Observe all Safety Guidelines detailed throughout this manual
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Lincoln Authorized Field Service Facility
for technical troubleshooting assistance before you proceed.
CAUTION
ASPECT™ 375
SYMPTOMS
POSSIBLE CAUSE
No hi-freq
Wrong Process setting
Verify Process is set for hi-freq
Tig
Preflow time set too long
Faulty PC Boards or connections
Contact your local Lincoln
Authorized Field Service Facility.
Contact your local Lincoln
Authorized Field Service Facility.
Hi-freq does not
initiate an arc
Insufficient gas flow
Check gas flow
Poor work clamp connection
Check & secure work clamp
Contaminated Tungsten
Grind to clean Tungsten
Faulty torch
Check Tig torch & insulation
Faulty PC Boards or connections
HI-FREQUENCY ISSUES
RECOMMENDED COURSE OF
ACTION
Set for typical 0.5 second
preflow time