Section 5
Low Pressure Water System
20412955
8-2012/Rev 08
5-6
4. Stop the intensifier and 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.
5. 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 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.
6. Replace the acorn nut, resume normal operation and observe the booster discharge
pressure. Peak pressure should be in the range of 90 to 120 psi (6 to 8 bar). If it is not,
repeat the adjustment procedure.
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