308479 11
Operation
Pressure Relief Procedure
PRESSURIZED EQUIPMENT HAZARD
The equipment stays pressurized until pressure is
manually relieved. To reduce the risk of serious
injury from pressurized fluid, accidental spray from
the gun or splashing fluid, follow this procedure
whenever you
D Are instructed to relieve pressure
D Stop pumping
D Check, clean or service any system equipment
D Install or clean fluid nozzles
WARNING
1. Shut off the air to the pump.
2. Open the dispensing valve, if used.
3. Open the fluid drain valve to relieve fluid pressure,
having a container ready to catch the drainage.
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
TOXIC FLUID HAZARD
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 above before lifting the pump.
WARNING
1. Be sure the pump is properly grounded. Refer to
Grounding on page 4.
2. Check fittings to be sure they are tight. Use a
compatible liquid thread sealant on male threads.
Tighten fluid inlet and outlet fittings securely.
3. Place the suction tube (if used) in fluid to be
pumped.
NOTE: If fluid inlet pressure to the pump is more than
25% of outlet working pressure, the ball check valves
will not close fast enough, resulting in inefficient pump
operation.
4. Place the end of fluid hose (L) into an appropriate
container.
5. Close the fluid drain valve (J).
6. Back out the air regulator (C) knob, and 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 increase air pressure with 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. 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
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure at left.
At the end of the work shift, relieve the pressure.
To Next Page
Loading...
