Shutdown the System
333587D
49
NOTE:
If using a Tandem system, perform steps 6
through 12 on both units.
6. If using an ambient system, turn the Disconnect
Switch (AZ) OFF. If using a heated system, turn the
Power Junction Box Switch (AK) and the Discon
-
nect Switch (AZ) OFF.
7. Open the Pump Bleed Valve (AM). Have a container
ready to catch the drainage.
8. Leave the Pump Bleed Valve (AM) open until ready
to dispense again.
9. If you suspect the dispense valve is clogged or that
pressure has not been fully relieved:
a. VERY SLOWLY loosen the hose end coupling
to relive pressure gradually.
b. Loosen the coupling completely.
c. Clear the obstruction in the tip/nozzle of the
valve.
10. Close the Main Air Slider Valve (BA).
11. Set the Ram Director Valve (BC) to DOWN. The
Ram (AA) will slowly drop.
12. Once the Ram (AA) is completely down, jog the
Ram Director Valve (BC) up and down to bleed air
from the Ram (AA) cylinders.
Shutdown the System
1. Follow the
Pressure Relief Procedure
on page
NOTE:
If using a Tandem system, perform these steps
on both units.
2. Set the Ram Director Valve (BC) to DOWN, and
lower the Ram (AA) to the desired position for
shutdown.
3. Set the Ram Director Valve (BC) to neutral.
4. Stop the Pump at the bottom of the stroke to pre
-
vent fluid from drying on the exposed displacement
rod and damaging the throat packings. See
Pump
Maintenance Screen 1
on page
for information
about manually moving the pump using the ADM.
5. Always flush the Pump before the fluid dries on the
displacement rod. See the E-Flo iQ Supply System
Operation manual for steps to flush the pump.
F
IG
. 8: Air Control for Pressure Relief
BA
BC
Open
Close
NOTICE
To prevent damage to the pump from rust, never
leave water or water-based fluid in a carbon steel
pump overnight. If you are pumping a water-based
fluid, flush with water first. Then flush with a rust
inhibitor, such as mineral spirits. Relieve pressure,
but leave the rust inhibitor in the pump to protect
parts from corrosion.