REMEDY
PROBABLE CAUSE
SYMPTOM
a. Replace.
a. Defective trigger switch.
No welding arc with power
ON and Gun trigger de-
b. Check continuity and
b. Defect in cable of water-
pressed.
replace if necessary.
out and cable assembly.
c. Disassemble Gun and
c. Wire within Gun discon -
repair.
netted.
a. Repair or replace.
a. Clogged or pinched gas
No gas flow with power ON
line on Gun.
and Gun trigger depressed.
b. Remove nozzle and
b. Gas orifices on Gun
clean.
barrel stopped up.
a. Repair or replace.
a. Clogged water hoses.
No water flow with power
ON and Gun trigger de-
b. Disconnect water
b. Blockage within barrel
pressed.
hoses and blow out
and transfer block as-
with compressed
sembly.
air.
a. Check and repair.
a. Break in welding wire.
Improper or no wire feed
with power ON and Gun
b. Check for proper
b. Flexible shaft mal-
trigger depressed.
coupling at each end,
function.
or replace.
c. Check, repair or
c. Defective wire guide
replace.
fitting in drive roll
housing assembly or
Gun barrel.
d. Check, repair or
d. Defective trigger wire
replace.
or connection within
Gun.
e. Replace.
e. Defective trigger switch.
f. Replace.
f. Defective trigger switch
compression spring.
a. Perform remedies
a. Check causes (a) thru
Improper or no wire feed
(a) thru (d), above
(d), above, for no
with power ON and jog
for no wire feed with
wire feed with trigger
button depressed.
trigger depressed.
depressed.
b. Replace.
b. Defective jog button.
c. Repair or replace.
c. Defective switch or
switch wiring.
a. Replace.
a. Defective compression
Drive roll housing does not
spring.
lock on Gun.
b. Replace.
b. Defective drive roll
housing lock.
c. Reposition or replace.
c. Shifted or damaged drive
roll houstng retainer.
d. Adjust or replace.
d. Defective backplate or
screws project.
31
