Trebor 50U Maxim - Manual (Page 22)

PAGE 22 MAXIM 50E/U PUMP OPERATION / MAINTENANCE MANUAL
4.9 TESTING
4.9.a Performance Test

Start with air regulator at low (< 15 psi) pressure setting.

Pump must prime once pressure is increased

60 psig Supply Pressure

Check for fluid leaks, listen for air leaks, check for irregularity
4.9.b 80/80 Leak Test

While cycling the pump supply 80 psi air

Close the discharge valve to create deadhead conditions

Leave at this condition for 2 minutes and check for air or fluid leaks

If a leak is witnessed, repair/replace components as necessary

Open discharge valve and expel the remaining DI water

Prepare the pump for drying
4.9.c Dry Pump

Connect vacuum hose to discharge line

Connect purge line to fluid inlet

60 psig Supply Pressure

Cycle pump & vacuum dry by rotating pump side to side for 30 seconds.

Turn off Air Supply and allow the pump to purge for 5 minutes.
4.9.d Dry Suction

20 psig Supply Pressure Target

Record Suction Value

Target = 12in-Hg