Maintenance - Campbell Hausfeld WK250000AV Operating Instructions And Parts Manual

Maintenance

Risk of electrical shock. DO NOT attempt to
diagnose or repair unless you are professionally
trained in power electronics measurement and troubleshooting
techniques. There are extremely dangerous voltage and power levels
present inside this unit. Disconnect power before servicing.
Before each use, disassemble Air Nozzle, Torch Tip, Diffuser
◆
Ring, and Electrode.
Inspect these parts for cracks, obstructed holes, and slag
◆
build-up. Remove slag and clear holes.
Replace worn parts for best performance.
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Troubleshooting Chart
Plasma Cutter
This guide covers basic troubleshooting. It is helpful for solving many of the common problems that can arise with this system.
If major complex subassemblies are faulty, the unit must be returned to an authorized service center for repair.
Follow safety instructions.
Symptom Possible Cause(s)
No output 1. Tripped circuit breaker
2. Blown house fuse
3. Poor work clamp connection
4. Duty Cycle exceeded
Arc goes out 1. Duty Cycle exceeded
while cutting 2. Poor work clamp connection
3. Hand travel speed too slow
4. Tip to workpiece gap too great
5. Worn tip or electrode
Arc goes on and 1. Hand travel speed too slow
off while cutting 2. Poor work clamp connection
3. Tip to workpiece gap too great
4. Worn tip or electrode
Sparks bounce 1. Hand travel speed too fast
back from 2. Insufficient air pressure / flow
workpiece 3. Air line obstructed
4. Poor work clamp connection
5. Metal too thick
Edge of cut not 1. Torch held at angle while cutting
perpendicular 2. Worn torch tip
to top of work 3. Air pressure too high / low
piece
Duty Cycle Light 1. Duty Cycle exceeded
Illuminates 2. Louvers in side panels obstructed
3. Inverter malfunction
Malfunction Light 1. Air line obstruction
Illuminates 2. Improperly assembled torch
3. Inverter malfunction
Reassemble parts in reverse order of disassembly. Make sure
◆
the Electrode is threaded in fully and tightened lightly. Make
sure the Diffuser Ring is seated properly on shoulder of the
torches brass body. Make sure the Torch Tip is seated in the
Diffuser Ring. Make sure the Air Nozzle is screwed down fully
and hand-tightened on Torch Body.
Inspect all cables for tears of cracks. Replace if damaged.
◆
Inspect the unit for external damage and make sure nothing
◆
is obstructing airflow through the louvers on the outer
panels.
For Information about this product, call 1-800-746-5641.
Corrective Action
1. Reset breaker / use a 20 amp branch circuit
2. Replace fuse
3. Reattach clamp in a clean bare metal location
4. Allow unit to cool for 15 minutes
1. Allow unit to cool for 15 minutes
2. Reattach clamp in a clean bare metal location
3. Increase hand travel speed
4. Move tip closer to workpiece
5. Replace tip and/or electrode
1. Increase hand travel speed
2. Reattach clamp in a clean bare metal location
3. Move tip closer to workpiece
4. Replace tip and/or electrode
1. Decrease hand travel speed
2. Increase air pressure at regulator
3. Make sure there are no kinks in air line inside torch cable sheath
4. Reattach clamp in a clean bare metal location
5. Do not exceed the maximum cutting thickness of 1/8 inch steel
1. Hold the torch perpendicular to work piece while cutting
2. Replace tip
3. Adjust air pressure lower or higher
1. Allow unit to cool for 15 minutes
2. Clear obstruction from louvers and provide at least 8 inch clearance
to all sides
3. Call technical support at 1-800-746-5641
1. Clear air line obstruction or kink
2. Reassemble torch correctly
3. Call technical support at 1-800-746-5641
WK250000AV
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