HyPrecision 50S/60S/75S Operator Manual 808690 201
9 – Installation
Installation
12. Touch the pierce-pressure mode symbol.
13. To remove air from the high-pressure lines, turn ON the cutting head. When water comes out of the cutting
head, turn it OFF.
The pump is on standby when the cutting head is turned off. The hydraulic pressure stays at the set
pressure and the intensifier does not stroke. When the cutting head is turned on, the intensifier strokes.
14. Slowly increase the pump pressure. Refer to page 51 for instructions.
15. Make sure that the value on the prefilter water-pressure gauge is between 3.45 bar and 7.93 bar or 345 kPa
and 793 kPa (50 psi to 115 psi). If the pressure is not in this range, adjust the boost pump pressure.
Adjust the boost pump pressure
When the low-pressure water is supplied from a tank, such as water from a reverse osmosis system, it is
frequently necessary to increase the pressure.
The boost pump operates with a supply water pressure of 2.76 bar to 4.8 bar or 275.8 kPa
to 482.63 kPa (40 psi to 70 psi), increasing the water pressure to 7.85 bar or 758 kPa (110 psi).
Do this task when the pump is not running.
1. Open the water valve to drain the water from the system. Make sure that the value on both water-pressure
gauges is 0.0 bar or 0 kPa (0 psi).
2. Loosen the jam nut on the bypass relief valve.
3. Turn the T-handle adjustment screw clockwise to increase pressure or anticlockwise to decrease pressure.
4. Close the water valve.
5. Turn ON the pump in cooling mode.
6. Make sure that the value on the prefilter water-pressure gauge is between 3.45 bar and 7.93 bar or 345 kPa
and 793 kPa (50 psi to 115 psi). If the pressure is not in this range, repeat the procedure.
7. Tighten the jam nut on the bypass relief valve.
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