114 HyPrecision Predictive waterjet pump Operator Manual 810120
5 – Preventive maintenance
Preventive maintenance
1. Put the seal installation spacer tool on a clean, dry surface.
2. Put the high-pressure cylinder over the spacer tool so that the tool fits in the cylinder bore.
3. Put the poppet spring on the low-pressure poppet.
HyPrecision P-50S/P-60S/P-75S pumps do not have a low-pressure poppet spring.
4. Put the low-pressure poppet into the low-pressure poppet basket.
Make sure that the poppet moves easily.
5. Put the low-pressure poppet basket with the low-pressure poppet into the spacer tube.
Intensifiers for HyPrecision P-50S/P-60S/P-75S pumps do not have a low-pressure poppet
spring.
Keep the poppet and the poppet basket clean. Grease can cause the poppet to stick.