Craftsman 196.205680 Manual Del Usuario página 21

TROUBLE
Dirty, porous, brittle weld
Wire feed works but no arc
Arc works but not
feeding wire
Nothing works
Low output or non-
)enetrating weld
Wire is jamming or
"birdnesting" at the
drive roller
Wire burns back to
i contact tip
POSSIBLE CAUSE
Plugged welding nozzle
1. Bad ground or loose
connection
2. Bad connection to gun or
faulty gun
1. Faulty wire speed circuit
board
2. No tension on the drive
roller
3. Faulty drive motor (very
rare)
1. Faulty trigger on gun
2. Exceeded duty cycle;
thermal protector opened
3. Faulty transformer (rare)
1. Loose connection inside
machine
2. Too long or improper
extension cord
3. Wrong type or size wire
4. Poor ground connection
5. Wrong size contact tip
6. Loose gun connection or
faulty gun assembly
1. Too much tension on drive
miler
2. Gun liner worn or damaged
3. Contact tip is clogged or
damaged
4, Liner is stretched or is too
long
1. Gun liner is worn or
damaged
2. Liner stretched or is too
long
3. Wrong size contact tip
4. Contact tip clogged or
damaged
POSSIBLE REMEDY
Clean or replace nozzle
1 Check ground and
connections. Tighten as
necessary.
2. Check connection to gun
or replace gun
1. Replace wire speed circuit
board
2. Adjust the drive tension
3. Replace the drive motor
1. Replace trigger
2. Allow welder to cool at
least 10 minutes (observe
and maintain proper duty
cycle)
3. Replace transformer
1. Blow inside of machine out
with compressed air, clean
and tighten all connections
2. See EXTENSION CORDS
in this manual
3. Use only 0.030 (0.8mm)
E71T-GS self shielding
flux-core wire
4. Reposition clamp and check
cable to clamp connection
5. Use only 0.030 inch
(0.8mm) contact tip
6. Tighten gun or replace gun
1. Adjust the drive tension
(see INSTALL THE
WELDING WIRE)
2. Replace gun liner
3. Replace contact tip
4. Tdm liner to proper length
1. Replace gun liner
2. Trim liner to proper length
3. Use correct size contact tip
4. Replace contact tip
Ground clamp and/or ground Bad connection from cable -Rghtenconnectionor replace
cable gets hot to clamp cable
Gun nozzle arcs to work Slag buildup inside nozzle or Clean or replace nozzle as
surface nozzle is shorted needed
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