Section 4
Low Pressure Water System
20425577
5-2005/Rev 0
4-4
4. Install the new element. Apply FML-2 grease to the o-ring in the filter housing and use
the filter wrench to replace the housing.
5. Turn the cutting water supply on.
6. Press the red bleed valve to remove any air inside the housing.
7. Start the machine and verify satisfactory pressure readings.
Booster Pump Adjustment
If the discharge pressure from the booster pump is less than 90 psi (6 bar), the relief valve on the
booster pump should be adjusted.
Figure 4-3: Booster Pump
1. Turn the cutting water supply on.
2. Start the machine and observe the discharge pressure from the booster pump.
3. Remove the acorn nut on the side of the pump to access the adjustment screw. It is
normal for water to leak out when the acorn nut is removed.
4. Use a flat screwdriver and turn the adjustment screw clockwise to increase the discharge
pressure or counter-clockwise to decrease the pressure. Adjust the pressure to the highest
desired pressure, within the normal booster pump range.
If the adjustment screw is turned too far out (counter-clockwise) an internal spring
and relief will fall down inside the pump. If this occurs, the pump must be
removed and the parts must be reinstalled to avoid component damage.
5. Replace the acorn nut and resume normal operation.
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