Pump Pressure Setting - Graco ToughTek MP Series Operation

Pump Pressure Setting

1. Attach the pressure test hose (A) to the pump outlet
(L) with the pressure test hose ball valve turned to
OPEN.
L
2. Place the end of the hose in a waste container.
3. Press the START button (U). Water should flow from
the outlet of the pressure test hose.
4. Set the water flow meter (R) to the approximate
level needed for pumping material by adjusting the
water flow adjustment valve (GG).
• 2.5 gpm for MP-20
• 5 gpm for MP-40
3A4789E
A
5. Use the speed selector knob (V) to change the
pump speed to level 2.
6. Slowly close the pressure test hose ball valve.
7. Observe the pressure setting on the pressure
gauge.
8. Slowly open the pressure test hose ball valve to
relieve any remaining pressure.
9. Press the STOP button (U).
10. To increase pressure, evenly tighten the stator bolts.
Evenly loosen the stator bolts to decrease pressure.
11. Repeat steps 3-10 until desired pressure is
achieved.
NOTE: Over-tightening the stator can wear out the
stator prematurely. Under-tightening the stator will
cause the pump to under perform and have reduced
output. System is factory-set to a pressure of
approximately 300 psi.
12. Remove the pressure test hose (A) from the pump
outlet (L).
Operation
13