Lincoln Electric IM10015 TOMAHAWK 375 AIR - Manual (Page 27)

E-6 TROUBLESHOOTING E-6
TOMAHAWK™ 375 AIR
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
PROBLEMS
(SYMPTOMS)
POSSIBLE
CAUSE
RECOMMENDED
COURSE OF ACTION
Pilot arc starts but will not transfer
when brought near work.
Pilot arc initiates but turns off before
transferring to work. Cutting arc
appears to turn off while cutting.
1. Check work lead connection for
clean, secure connection.
2. Plasma will only cut conductive
material. Do not attempt to cut
fiberglass, plastic, rubber, PVC or
any other non-conductive material.
3. Make sure work piece is clean and
dry. Remove any scale, rust or
dross.
4. Possible faulty Inverter board.
5. Check all connections to Control
board.
1. Input voltage is below 208V.
2. Air pressure is set too high.
If all recommended possible areas of
misadjustment have been checked
and the problem persists, Contact
your local Lincoln Authorized
Field Service Facility.
Lower air pressure by turning regula-
tor knob. Pressure may require being
set lower than blue arrow indicator.