HyPrecision Predictive waterjet pump Operator Manual 810120 215
9 – Installation
Installation
Flush the pump and the high-pressure tubing
It is common for small pieces of metal and debris to be present in newly installed high-pressure tubing. Flush the
system to prevent damage to orifices, on/off valve parts, and other parts of the high-pressure system.
This procedure identifies 1 method to flush out the high-pressure tubing. If this pump was purchased through
an OEM, the OEM might recommend a different procedure.
This procedure can cause damage to the on/off valve sealing parts and orifices. Keep spare kits and orifices
available.
1. Remove the cutting head and the orifice.
2. Make sure that the on/off valve is closed.
3. Turn
ON the pump.
4. Set the pressure to 1,380 bar (20,000 psi).
5. Start the pump.
6. Make a program that turns the valve on and off in 1-second increments. Operate the program in a loop for 15
minutes.
If a program is not available, turn the cutting head on and off in 1-second intervals for 15 minutes. This
loosens debris in the high-pressure tubing.
7. Turn
OFF the pump.
8. Install a ruby orifice in the cutting head. For orifice sizes, refer to the
Orifices section, which begins on
page 186.
9. Turn
ON the pump.
10. Touch the R
UN symbol.
11 . Increase the pressure to 2,760 bar (40,000 psi). Operate the program in a loop for 15 minutes.
12. Increase the pressure to 4,140 bar (60,000 psi). Operate the program in a loop for 15 minutes.
If the on/off valve leaks, examine the needle, the seat, the seals, and the orifices for damage. Replace these
parts, if necessary.
This procedure can cause damage to the on/off valve seals parts and orifices. Keep spare kits
and orifices available.
Debris can cause damage to the on/off valve needle and the seat.
If this pump was purchased through an OEM, the OEM could recommend a different procedure to
flush out the high-pressure tubing.
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