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Dry O-rings
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Over-lubricated O-rings
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Cracks in the torch main body
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Cracks in the torch insulator
2. Replace any O-rings that have damage or excess wear.
Torch rebuild kits are available from Hypertherm. Refer to Preventive maintenance kits on page 434.
3. If you find cracks in the torch main body or torch insulator, replace the entire torch main body.
Refer to Install the torch into the torch receptacle on page 145.
4. Replace the torch water tube if you find pitting or bends.
5. Clean and lubricate the torch if it does not need replacement:
a. Use a clean, lint-free cloth to wipe the internal and external surfaces.
b. Use compressed air to remove debris from the internal and external surfaces.
A cotton swab can be used for internal surfaces that are difficult to reach. Do not leave cotton
fibers inside of the torch.
c. Apply a thin film of silicone lubricant (027055) to any O-ring that does not need replacement
and that looks dry.
The O-rings should look shiny. Too much lubricant can prevent gas flow. Remove excess
lubricant if found.
Maintenance
7
257811530Instruction ManualXPR460
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