Hypertherm HyPrecision 50S, Operator'S Manual

Page: 129 / 202

HyPrecision 50S/60S/75S Operator Manual 808690 129
5 – Preventive maintenance
Preventive main
tenance
High-pressure water system: Bleed-down valve
Examine the bleed-down valve for leaks or damage

Weep hole 1 will leak hydraulic fluid. The others will leak water.
Do this task when the pump is running.
1. Remove the pump end panel.
2. Monitor for leaks. Identify the source of a leak and correct the problem. Refer to
Leaks
on page 163.
CAUTION
Failure to correct the cause of a leak can cause damage to the water fittings.
Service Interval
Examine the bleed-down valve for leaks or damage Every work shift
WARNING
Do not attempt to repair a leak with pressure in the system.
WARNING
Use a piece of cardboard or other solid material to check for leaks when the pump is on. Do not
use hands, cloth, paper, or towels.
1
3
2
4
5
1 O-ring
2 High-pressure seal
3 High-pressure water connection
4 Poppet seat
5 Output connection