Linkoln Electric Magnum PRO 100SG Manuel De L'opérateur page 23

MAGNUM PRO 100SG
Observe all Safety Guidelines detailed throughout this manual
PROBLEM
(SYMPTOMS)
Low or no shielding gas
flow.
Wire feeder runs or begins
feeding wire without pulling
the gun trigger.
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Lincoln Authorized Service Facility for technical troubleshooting assistance before you proceed.
WWW.LINCOLNELECTRIC.COM/LOCATOR
POSSIBLE AREAS OF
MISADJUSTMENT(S)
1. Out of gas.
2. Gas supply is turned off or disconnected.
3. Gas supply flow regulator is improperly
set.
4. Machine s gas solenoid valve has
malfunctioned.
5. Blockage in gun along gas path.
6. Gun cable kinked or flattened.
7. Blockage due to excessive spatter
accumulation on gas cone or gas
diffuser.
8. Excessive gas leakage from supply.
9. Gas leakage in gun between liner
assembly and cable connector.
10. Gas leakage at gun-to-feeder
connection.
1. Defective trigger. (contacts closed)
2. Defective (closed) trigger circuit in the
welding machine.
3. Trigger lead(s) inside gun cable are
shorted together or commonly shorted to
either welding or motor circuits.
RECOMMENDED COURSE OF ACTION
1. Check that an adequate gas supply is available.
2. Check that all gas supply valves are open.
3. Check that gas flow is set between 20 to 50 SCFH.
4. See machine s instruction manual.
5. Gently blow out debris from core tube.
6. Attempt to straighten out cable, or replace cable.
(See Maintenance Section)
7. Clean or replace gas cone or gas diffuser.
8. Find and repair all leaks.
9. Replace liner assembly. (See Maintenance Section)
10. Damaged o-rings: replace both seals. Gun
connector not fully inserted into machine (See
Installation Section).
1. Replace trigger. (See Maintenance Section)
2. See machine s instruction manual
3. Damaged control leads between machine s P6
connector and cable; repair if possible. Otherwise,
replace gun cable. (See Maintenance Section) for
both.
F-4
TROUBLESHOOTING