SECTION 6
LOW PRESSURE WATER
Page 6-9
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6.3.1 Water Filter Service
Replace water filter when booster pump inlet pressure drops below 30 psig
pressure switch (6), Figure 6-4 with 30 psig or greater on gage (8) Figure 6-4.
Components: Bleed Valve
Element
Head
Housing
Recommended Tools: Supplied filter thread/unthread tool
(to turn housing)
Container (to capture some water spill)
Rags
Parts: Elements for water: 10 micron (quantity 2)
Polymer mixer: 40 micron (quantity 2)
Water Filter Element Replacement Procedure
1. Turn off cutting water supply
2. Press bleed valve to relieve trapped pressure
3. Unscrew housing from head. Remove element.
4. Install new elements in housing. Screw housing into head.
5. Open cutting water supply.
6. Press bleed valve to remove trapped air.
7. Start waterjet pump. Verify satisfactory pressure readings.
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