Thermal Arc Viking 210GM, Operating Manual

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Viking 210GM, 250GM
32
Power Source Problems (continued)
FAULT CAUSE REMEDY
4 Mains supply voltage is
ON and Indicator light is
lit but when the torch
trigger switch is
depressed nothing
happens.
Torch trigger switch
leads are disconnected.
Reconnect.
5 Mains supply voltage is
ON, no wire feed but gas
flows from the MIG
Torch when the torch
trigger switch is
depressed.
A
B
Electrode wire stuck in
conduit liner or contact
tip (burn-back jam).
Faulty control PCB A
B Check for clogged / kinked
MIG Torch conduit or worn
contract tip. Replace faulty
component(s).
Have an Accredited
THERMAL DYNAMICS
Service Agent investigate the
fault.
6 Wire feeds when the
torch trigger switch is
depressed but arc can not
be established.
Poor or no work lead
connection.
Clean work clamp area and
ensure good electrical
contact.
7 Mains supply voltage is
ON and contactor in the
Power Source operates
but wire does not feed
when the torch trigger
switch is depressed.
Tweco Torch has been
damaged internally,
trigger wires are making
contact with welding
power cable.
Have an Accredited
THERMAL DYNAMICS
Service Agent repair torch &
replace PCB.
8 Jerky wire feed A Worn or dirty contact tip A Replace
B Worn feed roll. B Replace
C Excessive back tension
from wire reel hub.
C Reduce brake tension on
spool hub
D Worn, kinked or dirty
conduit liner
D Clean or replace conduit liner
9 No gas flow A Gas hose is cut. A Replace or repair.
B Gas passage contains
impurities.
B Disconnect gas hose from the
rear of Viking or wirefeeder
then raise gas pressure and
blow out the impurities.
C Gas regulator turned off. C Turn on.
10 Gas flow continues after
the torch trigger switch
has been released.
Gas valve has jammed
open due to impurities in
the gas or the gas line.
Have an Accredited
THERMAL DYNAMICS
Service Agent repair or
replace gas valve.