PRO-POINT MIG-ARC-TIG 145A Manuel De L'utilisateur page 32

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MIG WIRE FEED
PROBLEM(S) POSSIBLE CAUSE(S)
No wire feed 1.
2.
Inconsistent / 1.
interrupted wire
2.
feed
3.
4. Voltage setting incorrect.
5.
6.
7.
8.
9.
10. Blocked or worn inlet
11. Wire misaligned in drive
12. Incorrect drive roller size.
13. Wrong type of drive roller
14. Worn drive rollers.
15. Drive roller pressure too
16. Too much tension on wire
17. Wire crossed over on the
18. Contaminated MIG wire.
TIG WELDING
PROBLEM(S) POSSIBLE CAUSE(S)
Tungsten 1. Incorrect Gas.
burning away
2. No gas.
quickly.
3. Inadequate gas flow.
4. Back cap not fitted
5. Torch connected to DC+.
6. Incorrect tungsten being
7. Tungsten oxidized after
32
145A MULTI-PROCESS MIG-ARC-TIG WELDER
Wrong mode selected.
Wrong torch selector
switch.
Adjusting wrong dial.
Wrong polarity selected.
Incorrect wire speed
setting.
MIG torch lead too long.
MIG torch lead kinked or
too sharp angle being held.
Contact tip worn, wrong
size, wrong type.
Liner worn or clogged (the
most common causes of
bad feeding).
Wrong size liner.
guide tube.
roller groove.
selected.
high.
spool hub.
spool or tangled.
correctly.
used.
weld is finished.
SUGGESTED SOLUTION(S)
1. Check that the TIG/ARC/MIG selector switch set
to MIG position.
2. Check that the standard/spoolgun selector switch
is set to standard position for MIG welding and
spoolgun when using the spoolgun.
1. Be sure to adjust the WIRE FEED and VOLTAGE
dials for MIG welding. The AMPERAGE dial is for
STICK and TIG welding mode.
2. Select the correct polarity for the wire used - see
Installation & Operation For MIG With Gas or
Installation & Operation For Gasless MIG.
3. Adjust the wire feed speed.
4. Adjust the voltage setting.
5. Small diameter wires and soft wires like aluminum
don't feed well through long torch leads - replace
the torch with a lesser length torch.
6. Remove the kink, reduce the angle or bend.
7. Replace the tip with correct size and type.
8. Try to clear the liner by blowing out with
compressed air as a temporary cure, it is
recommended to replace the liner.
9. Install the correct size liner.
10. Clear or replace the inlet guide tube.
11. Locate the wire into the groove of the drive roller.
12. Fit the correct size drive roller eg; 0.030 in. wire
requires 0.030 in. drive roller.
13. Fit the correct type roller (e.g. knurled rollers
needed for flux cored wires).
14. Replace the drive rollers.
15. Can flatten the wire electrode causing it to lodge
in the contact tip - reduce the drive roller
pressure.
16. Reduce the spool hub brake tension.
17. Remove the spool untangle the wire or replace
the wire.
18. Use clean dry rust free wire. Do not lubricate the
wire with oil, grease etc.
SUGGESTED SOLUTION(S)
1. Check that pure Argon is being used.
2. Check that the gas cylinder contains gas is connected
and the torch gas valve is open.
3. Check the gas is connected, check hoses, gas valve and
torch are not restricted. Set the gas flow between
25 to 31 CFH flow rate.
4. Make sure the torch back cap is fitted so that the o-ring
is inside the torch body.
5. Connect the torch to the negative DC output terminal.
6. Check and change the tungsten type if necessary.
7. Keep shielding gas flowing 10 to 15 seconds after arc
stoppage. One second for each 10 amps of weld
current.
For technical questions call 1-800-665-8685
V1.0