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9
Operation
Flush the Pump Before First Use
The pump was tested in water. If the water could
contaminate the fluid you are pumping, flush the pump
thoroughly with a compatible solvent. Follow the steps
under
Starting and Adjusting the Pump.
Starting and Adjusting the Pump
WARNING
HAZARDOUS FLUIDS
To reduce the risk of serious injury,
splashing in the eyes or on the skin, and
toxic fluid spills,
never
move or lift a
pump under pressure. If dropped, the fluid section
may rupture. Always follow the
Pressure Relief
Procedure Warning
at right before moving or
lifting the pump.
1.
Be sure the pump is properly grounded. Refer to
Grounding
on page 4.
2.
Check all fittings to be sure they are tight. Be sure
to use a compatible liquid thread sealant on all
male threads. Tighten the fluid inlet and outlet
fittings securely.
3.
Place the suction tube (if used) in the fluid to be
pumped.
NOTE:
If the fluid inlet pressure to the pump is more
than 25% of the outlet working pressure, the ball check
valves will not close fast enough, resulting in inefficient
pump operation.
4.
Place the end of the fluid hose (L) into an appropri-
ate container.
5.
Close the fluid drain valve (J). See Fig. 2.
6.
With the pump air regulator (C) closed, open all
bleed-type master air valves (B, E).
7.
If the fluid hose has a dispensing device, hold it
open while continuing with the following step.
8.
Slowly open the air regulator (C) until the pump
starts to cycle. Allow the pump to cycle slowly until
all air is pushed out of the lines and the pump is
primed.
If you are flushing,
run the pump long enough to
thoroughly clean the pump and hoses. Close the
air regulator. Remove the suction tube from the
solvent and place it in the fluid to be pumped.
Operation of Remote Piloted Pumps
1.
Fig. 2 and Parts Drawings. Follow preceding steps
1 through 7 of
Starting and Adjusting Pump
.
2.
Open air regulator (C).
WARNING
The pump may cycle once before the external sig-
nal is applied. Injury is possible. If pump cycles,
wait until end before proceeding.
3.
Pump will operate when air pressure is alternately
applied and relieved to push type connectors (14).
NOTE
: Leaving air pressure applied to the air motor for
extended periods when the pump is not running may
shorten the diaphragm life. Using a 3-way solenoid
valve to automatically relieve the pressure on the air
motor when the metering cycle is complete prevents
this from occurring.
Pump Shutdown
At the end of the work shift and before checking,
adjusting, cleaning or repairing the system, follow the
Pressure Relief Procedure
below.
Pressure Relief Procedure
WARNING
To reduce the risk of serious injury, including
splashing fluid in the eyes or on the skin, follow this
procedure when this manual instructs you to
relieve pressure, when you shut off the pump, and
before checking, adjusting, cleaning, moving, or
repairing any system equipment.
1.
Shut off the air to the pump.
2.
Open the dispensing valve, if used.
3.
Open the fluid drain valve to relieve all fluid pres-
sure, having a container ready to catch the drain-
age.
