Lincoln Electric IMt913 MAGNUM 100SG SPOOL GUN - Manual (Page 34)

TROUBLESHOOTING
E-4
Observe all Safety Guidelines detailed throughout this manual If for any reason you do not under stand the test procedures or are unable to perfor m the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed. CAUTION PROBLEMS PROBLEMS (SYMPTOMS) POSSIBLE CAUSE
RECOMMENDED COURSE OF ACTION Low or no shielding gas flow. Wire feeder runs or begins feeding wire without pulling the gun trigger. 1. Out of gas. 2. Gas supply is turned off or discon- nected. 3. Gas supply flow regul ator 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 sup- ply. 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. 1. Check that an adequate gas sup- ply 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. Repl ace liner assembl y. (See Maintenance Section) 10. Damaged o-rings: replace both seals. Gun connector not fully inserted into machine (See Installation Section). 1. Repl ace tri gger. (S ee Maintenance Section) 2. See machine s instruction manual 3. Damaged control leads between machine s P6 connector and cabl e; repai r if possible. Ot herwise, replace gun cable. (See Maintenance Section) for both. 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
PROBLEMS
(SYMPTOMS)
POSSIBLE
CAUSE
RECOMMENDED
COURSE OF ACTION
Low or no shielding gas flow.
Wire feeder runs or begins feeding
wire without pulling the gun trigger.
1. Out of gas.
2. Gas supply is turned off or discon-
nected.
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 sup-
ply.
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.
1. Check that an adequate gas sup-
ply 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.