Hypertherm HyPrecision 100D, Instruction Manual

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Inlet Cutting Water Filtration
All Hypertherm HyPrecision 100D/150D pumps come with two or three water filters that remove
contaminants from the cutting water. Two water gauges are located on the front panel of the pump or on
either side of the filters to show the pressure before and after the filters. These gauges are used to
determine the pressure drop across the filters. Swivel connections are provided at the HP end caps for
easy removal for service. A manual ball valve
(4) is provided to discharge the accumulator prior to
performing maintenance. If the filters start to clog to the point that the post-filter water pressure is
below 40 psi and/or the pressure drop across the filters is greater than 15 psi, you must replace
the filters.
In order to maintain necessary water pressure for the pump and to keep the water clean for proper
operation, it is necessary to replace the water filters periodically. The filters should be replaced as
needed.
Water Filter Service
Replace filter elements when there is a 10-psi pressure differential between the two gauges located on
the pump control panel.
Replacement Parts:
•
10 Micron Filter (1) (Models with Three Filter
Elements)- AS part # 11107
•
1 Micron Filter (2) (All Models) - AS part
#11106
•
0.45 Micron Filter (3) (All Models) – AS part
# 11105
Recommended Tools:
Strap Wrench or Filter Wrench (for turning filter housing)
Water Filter Element Replacement Procedure
Replacing the filter components
1. Turn the pump off.
2. Open the discharge ball valve (4) to relieve trapped pressure.
3. Unscrew the filter housing from head. Remove element.
4. Install new elements in the housing. Screw the housing into head.
5. Close the discharge ball valve ( 4 ).
6. Turn the pump motor on to turn on the inlet valve and boost pump.
7. Press the bleed valve located on the top of the filter housing to remove trapped air.
8. Start the waterjet pump. Verify satisfactory pressure readings.
Low-Pressure Water Switch (Not all Models)
A pressure switch located after the filters senses low water pressure to the intensifier. A sustained
pressure of below
40 psi will result in pump shutdown. This protects the system from running without
enough feed pressure to the intensifiers.
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