Graymills DDP 1' Pump OMI - Manual (Page 12)

12
Operation
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 signal 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 occur-
ring.
Pump Shutdown
WARNING
To reduce the risk of serious injury whenever you are
instructed to relieve pressure, always follow the Pres-
sure Relief Procedureon page 11.
At the end of the work shift, relieve the pressure.