User's Manual

Operation

16 3A0591U

Starting and Adjusting the Pump

See FIG. 3, page 12.

1. Be sure the pump air regulator (BE) is closed. Set

the ram air regulator (BB) to about 3.5 bar, 0.35

MPa (50 psi). Set the director valve (BC) to DOWN.

2. Start the pump as explained in the separate pump

instruction manual.

3. Keep the director valve (BC) set to DOWN while the

pump is operating.

NOTES ON ADJUSTING PRESSURE:

Different combinations of seal and ram pressure may be

necessary for proper seal and pump operation.

• If the pump does not prime properly with heavier flu-

ids, increase air pressure to the ram.

• If fluid is forced out around the inflatable seal,

decrease pressure to the ram.

• For diaphragm pump models, adjust DOWN pres-

sure to the minimum level, to ensure that the pump

inlet balls seat properly.

NOTE: If seal pressure builds when the seal enters a

tapered portion of the drum, the relieve valve will acti-

vate. Turn the seal bleed-off valve (BL) counterclockwise

to open it.

FIG. 4. Seal Bleed Valve and Muffler with Valve

TI16465a

TI15715a