Lincoln Electric DLF-72 Operator's Manual page 26

DLF-72
®
PROBLEM
Err 82 Motor overload, long
term
Output Problems
The feeder does power up -
no voltage, no cold feed.
No shielding gas.
Inconsistent wire feeding or
wire not feeding but drive
rolls turning.
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
Observe all Safety Guidelines detailed throughout this manual
POSSIBLE CAUSE
The wire drive motor has
overheated.
1. No output from power
source.
2. Input ArkLink® cable is
disconnected or broken.
1. The gas supply is OFF or
empty.
2. The gas hose is cut or
crushed
3. Dirt or debris is in the
solenoid.
4. There is a loose solenoid
connection.
5. The solenoid has failed.
1. The gun cable is kinked
and/or twisted
2. The wire is jammed in the
gun and cable.
3. The gun liner is dirty or
worn.
4. The electrode is rusty or
dirty.
5. The contact tip is partially
melted or has spatter.
6. Improper gun liner, tip, drive
RECOMMENDED COURSE OF ACTION
1. Check that the electrode slides easily through the gun and cable.
2. Remove tight bends from the gun and cable.
3. Check that the spindle brake is not too tight.
4. Verify a high quality electrode is being used.
5. Wait for the error to reset and the motor to cool (approximately 1
minute).
6. Clean/inspect/replace liner.
1. Won't power up if power source is off.
2. Route the gas hose so it avoids sharp corners and make sure
nothing is on top of it. Repair or replace damaged hoses.
4. Remove the cover and check that all connections are in good
condition.
1. Keep the gun cable as straight as possible. Avoid sharp corners
or bends in the cable.
2. Remove the gun from the wire feeder and pull the jammed wire
out of the gun and cable.
3. Blow dirt out of the liner with low pressure (40psi or less).
Replace the liner if worn.
4. Replace contact tip.
E-2
TROUBLESHOOTING