Hypertherm HyPrecision 15, Operator'S Manual

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HyPrecision15/30/50 Operator Manual 808240 159
7 – Troubleshooting
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oubleshoo
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Leaks
Make sure that the tubing, water fittings, and quick disconnects inside and outside of the pump are not leaking.
Damage to the high-pressure water seals and the hoops is the most common cause of water leaking from the intensifier.
Water dripping from the high-pressure cylinder shows that the seals will soon require changing. One drip every few
strokes means that the seals should be watched. More than 1 drip with each stroke means that the seals in that
high-pressure cylinder should be changed at the first opportunity.
Weep holes throughout the high-pressure water system let water escape from leaking parts. Leaks can mean that there is
a faulty part, loose fitting, or damaged seat. Failure to correct the problem can result in damage to the mating fittings.

Look for leaks at both ends of the high-pressure cylinder.
Water leak from Possible cause
Output adapter weep hole
• A fitting on the high-pressure water tubing is not

tight enough.
• The tubing end is cracked or damaged.
• The output adapter has failed.
High-pressure seat weep hole
• The output adapter is loose.
• The high-pressure poppet seat has failed.
• The seat face of the check valve is cracked.
• The check valve O-ring closest to the output adapter
has failed.
Static seal leak point
• A high-pressure seal has failed.
• The check valve O-ring closest to the high-pressure
seal has failed.
Dynamic seal housing weep hole A high-pressure seal has failed.
1 2 3 4
1 Output adapter weep hole
2 High-pressure seat weep hole
3 Static seal leak point
4 Dynamic seal housing weep hole