164 HyPrecision 50S/60S/75S Operator Manual 808690
7 – Troubleshooting
Troubleshooting
A leaking high-pressure seal in the intensifier can force water past the rod seal and into the hydraulic fluid.
Hydraulic fluid contaminated with water has a milky appearance. Contaminated hydraulic fluid can damage the
hydraulic pump.
In water-cooled systems, water can enter the hydraulic system through the heat exchanger. If this is suspected to
be the case, contact a Hypertherm Technical Service Associate for assistance.
Replace the hydraulic fluid and examine all of the parts, including the inside of the hydraulic fluid tank, the
hydraulic hoses, and the seals. Refer to page 84 for instructions.
Sometimes it is necessary to drain and flush out other areas such as the shift valve, the hydraulic manifolds,
and the hydraulic pump.
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 nearest to the output
adapter has failed.
Static seal leak point
• A high-pressure seal has failed.
• The check valve O-ring nearest to the
high-pressure seal has failed.
Dynamic seal housing weep hole A high-pressure seal has failed.
Hydraulic fluid leak from Possible cause
Dynamic seal housing weep hole
• The rod seal has failed.
• The O-ring or O-ring backup on the seal housing
has failed.
Anywhere on the intensifier An O-ring has failed.
To Next Page
Loading...
Need help?
General
