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Supply System Operation
313526J 21
Start and Adjust Pump
1. Connect pump outlet fittings and hose (not sup-
plied).
2. Be sure the pump air valve is closed. Then set the
ram air regulator (BB) to about 50 psi (0.35 MPa,
3.5 bar). Set the director valve (BC) or elevator
director valve (DD) to DOWN. Remote DataTrak: If
system has this feature, press the prime/flush key
(see page 26).
3. Start the pump as explained in the separate pump
instruction manual.
4. Keep the director valve (BC) or elevator director
valve (DD) set to DOWN while pump is operating.
Change Drums
1. Stop the pump.
a. For D200s, D200, S20, and D60: Push in the
air motor slider valve (BF) to stop the pump.
b. For L20c: Turn air motor valve (DC) off to stop
the pump.
2. Raise the platen out of the drum.
a. For D200s, D200, S20, and D60: Set ram
director valve (BC) to UP to raise the platen (D)
and immediately press and hold the blowoff air
button (BG) until the platen (D) is completely out
of drum. Use minimum amount of air pressure
necessary to push the platen out of the drum.
b. For L20c: Set elevator director valve (DD) to
UP to raise the platen (D) and immediately
press and hold the blowoff air button (DB) until
the platen (D) is completely out of drum.
3. Follow steps 4-8.
4. Release the blowoff air button and allow the ram to
rise to its full height. 2-Button Interlock: If system
has this feature, the ram will stop as it nears the top.
Press and hold both buttons to raise ram com-
pletely. See F
IG
. 4, page 12.
5. Remove empty drum.
6. Inspect platen and, if necessary, remove any
remaining material or material build–up.
7. Place full drum on ram base.
8. Lower the ram and adjust the position of the drum
relative to the platen. See Start and Adjust Ram on
page 19.
Be sure all components are adequately sized and
pressure rated to meet the system’s requirements.
Increase air pressure to the ram if the pump does
not prime properly with heavier fluids. Decrease air
pressure if fluid is forced out around the top seal or
platen.
Excessive air pressure in the material drum could
cause the drum to rupture, causing serious injury.
The platen must be free to move out of the drum.
Never use drum blowoff air with a damaged drum.