Hypertherm HyPrecision 15, Руководство оператора

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158 HyPrecision15/30/50 Operator Manual 808240
7 – Troubleshooting
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8. If the intensifier overstrokes in one direction, check these possible causes.
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Instructions about how to disassemble the intensifier and how to repair or replace its parts begin on page 102.
9. A worn or damaged orifice can increase the demand for high-pressure water from the intensifier and cause an
overstroke fault. Make sure that the orifice is not damaged.
Possible cause Solution
The high-pressure water seals are worn or damaged. Replace the high-pressure water seals.
A low-pressure poppet is sticking, worn, or damaged.
Overstroking to the left means that there is a failure of the
low-pressure poppet on the left side of the intensifier.
Overstroking to the right means that there is a failure of the
low-pressure poppet on the right side of the intensifier.
• Examine the face of the poppet and the mating
face on the check valve. Both surfaces should
have a mirrorlike finish.
• Repair or replace the poppet.
• Make sure that the low-pressure poppet fits in the
basket without sticking.
• Repair or replace the check valve.
A high-pressure poppet is sticking, worn, or damaged.
Overstroking to the left means that there is a failure of the
high-pressure poppet on the right side of the intensifier.
Overstroking to the right means that there is a failure of the
high-pressure poppet on the left side of the intensifier.
• Check for heat from the output adapter on the
intensifier end opposite the direction of overstroke.
If the output adapter is hot, remove it from the
check valve and examine the high-pressure
poppet, spring, and seat.
• Replace the high-pressure poppet, seat, and
spring.