Pressure Relief Procedure
333587B
47
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 Disconnect
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.
F
IG
. 8: Air Control for Pressure Relief
BA
BC
Open
Close
