Campbell Hausfeld WK250000AV, Operating Instructions And Parts Manual

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WK250000AV
www.chpower.com 11
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.
◆
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.
Troubleshooting Chart
Plasma Cutter
Symptom Possible Cause(s) Corrective Action
No output 1. Tripped circuit breaker
2. Blown house fuse
3. Poor work clamp connection
4. Duty Cycle exceeded
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
Arc goes out
while cutting
1. Duty Cycle exceeded
2. Poor work clamp connection
3. Hand travel speed too slow
4. Tip to workpiece gap too great
5. Worn tip or electrode
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
Arc goes on and
off while cutting
1. Hand travel speed too slow
2. Poor work clamp connection
3. Tip to workpiece gap too great
4. Worn tip 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
Sparks bounce
back from
workpiece
1. Hand travel speed too fast
2. Insufficient air pressure / flow
3. Air line obstructed
4. Poor work clamp connection
5. Metal too thick
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
Edge of cut not
perpendicular
to top of work
piece
1. Torch held at angle while cutting
2. Worn torch tip
3. Air pressure too high / low
1. Hold the torch perpendicular to work piece while cutting
2. Replace tip
3. Adjust air pressure lower or higher
Duty Cycle Light
Illuminates
1. Duty Cycle exceeded
2. Louvers in side panels obstructed
3. Inverter malfunction
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
Malfunction Light
Illuminates
1. Air line obstruction
2. Improperly assembled torch
3. Inverter malfunction
1. Clear air line obstruction or kink
2. Reassemble torch correctly
3. Call technical support at 1-800-746-5641
For Information about this product, call 1-800-746-5641.
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.