Hi-Frequency Issues - Lincoln Electric ASPECT 375 Operator's Manual

ASPECT™ 375

HI-FREQUENCY ISSUES

SYMPTOMS
No hi-freq
Hi-freq does not
initiate an arc
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.
Observe all Safety Guidelines detailed throughout this manual
POSSIBLE CAUSE
Wrong Process setting
Preflow time set too long
Faulty PC Boards or connections
Insufficient gas flow
Poor work clamp connection
Contaminated Tungsten
Faulty torch
Faulty PC Boards or connections
Verify Process is set for hi-freq
Tig
Set for typical 0.5 second
preflow time
Contact your local Lincoln
Authorized Field Service Facility.
Check gas flow
Check & secure work clamp
Grind to clean Tungsten
Check Tig torch & insulation
Contact your local Lincoln
Authorized Field Service Facility.
CAUTION
E-9
TROUBLE SHOOTING
RECOMMENDED COURSE OF
ACTION