Hypertherm HyPrecision 50S User Manual

HyPrecision 50S/60S/75S Operator Manual 808690 107
5 – Preventive maintenance
Preventive maintenance
Repair the check valves and the low-pressure poppets
This procedure is for a moderately worn check valve. Severe wear requires replacement.
Required parts, tools, and materials
12-micron lapping paper (included in the 12084 HyPrecision standard tool kit)
15-micron lapping paper (included in the 12084 HyPrecision standard tool kit)
Granite surface plate (included in the 12084 HyPrecision standard tool kit)
Clean, lint-free towels
Isopropyl alcohol
Masking tape
1. Tape a sheet of lapping paper on a granite surface block. Make sure that the paper is smooth and flat.

For best results, start with the 12-micron lapping paper and finish with the 15-micron lapping paper.
2. Put the check valve or poppet face flat on the lapping paper and slide it back and forth. Apply light pressure.
Service Interval
Repair the check valves and the low-pressure poppets After every 500 hours of operation
CAUTION
Rocking the part or using too much pressure can damage the part face.
1 2
1 Check valve 2 Low-pressure poppet
1
2

Hypertherm HyPrecision 50S Specifications

General

Brand	Hypertherm
Model	HyPrecision 50S
Category	Water Pump
Language	English