Troubleshooting
122 810770 Operator Manual Echion
If both sides of the intensifier are stroking too fast, is a leak visible?
Is the bleed-down valve hot?
Yes The high-pressure tubing or a fitting is leaking. Identify the source of a leak and correct the
problem.
A high-pressure water seal is worn or
damaged.
• Disassemble the intensifier.
• Examine the parts. Look for flaws,
deterioration, erosion marks, corrosion, or
cracks.
• Make sure that the mating surfaces are
smooth and clean.
• If damage is found, replace the component.
The bleed-down valve is leaking or has failed. Repair or replace the bleed-down valve.
The needle and the seat in the cutting head are
leaking.
The on/off valve has failed.
The cutting head has failed.
• Examine the parts. Look for flaws,
deterioration, erosion marks, corrosion, or
cracks.
• Make sure that the mating surfaces are
smooth and clean.
• If damage is found, replace the component.
No The orifice is worn, has failed, or is incorrectly
installed.
A worn or damaged orifice can increase the
demand for high-pressure water from the
intensifier.
Replace the orifice.
The orifice is the wrong size.
Yes The bleed-down valve has failed. Repair or replace the bleed-down valve.
The bleed-down valve is not getting air. • Make sure that the compressed air source
is on.
• Make sure that the compressed air hose is
not damaged.
• Make sure that the compressed air hose is
connected correctly.
No The postfilter water-pressure gauge shows that
the low-pressure water is lower
than2.8bar(280kPa/40psi).
Replace the water filter if the difference
between the values on the prefilter
water-pressure gauge and the postfilter
water-pressure gauge is lower
than0.7bar(70kPa/10psi).
The prefilter water-pressure gauge shows that
the low-pressure water is lower
than2.8bar(280kPa/40psi).
• Make sure that the water to the pump is on.
• Make sure that the low-pressure water line
is connected to the intensifier.
• If the pump has a boost pump, examine the
water filter. If the filter is black, the boost
pump has failed and must be replaced.
Contact a Hypertherm Technical Service
Associate for information and support.
Low water pressure can cause an
overstroke without triggering the
low-pressure alarm for the low-pressure
water.