Change The Drum; Emergency Stop; Pump Shutdown - Graco SaniForce SDU Series Manual

Operation
Change the the Drum Drum
Change Change the Drum
Excessive air pressure in the material drum could
cause the drum to rupture, causing serious injury.
The ram plate must be free to move out of the
drum. Never use blowoff air while the ram plate
seal is inflated.
1. Turn off the pump.
2. Raise the ram plate out of the drum:
NOTE: When raising the ram, the vacuum NOTE: NOTE:
between drum or its contents and the ram plate
must be broken by use of the blowoff button.
When the air assist (blowoff) button is pushed,
the facility-supplied air supply raising the ram is
diverted to the blowoff connection on the ram
plate and creates a pressure to release the ram
plate from the drum or its contents.
a. Deflate the ram plate seal.
b. Raise the ram out of the drum.
c. If the ram raises the drum off of the base,
press the air assist (blowoff) button to break
the vacuum between the ram plate and
product.
d. When the ram plate is free of the drum and
the ram reaches its full height, leave the ram
control in the UP setting or use the manual
ram lock. See Manual Ram Lock, page
3. Remove the empty drum.
To reduce the risk of injury, including
pinching fingers, while cleaning material
from the ram plate, relieve pump pressure
before using tools to clean. Follow the
Pressure Relief Procedure, page
22
4. Inspect the ram plate and, if necessary, remove
any remaining material or material build-up.
a. Perform pump pressure relief. See
b. Use a tool to remove material build-up.
5. To empty another drum, perform the steps of
Start and Adjust the Ram, page

Emergency Stop

Emergency Emergency
The SDU electro-pneumatic control box has an
emergency stop button (CC) below the display
screen. Pressing the emergency stop button will stop
the pump but does not depressurize the system.
Resetting the emergency stop places the system in
a ready state. The system must be restarted by the
operator.
To reset the emergency stop button, rotate the knob
in a clockwise direction until a click is heard or felt.
Do not use the emergency stop button to stop the
system during normal operation.

Pump Shutdown

Pump Pump
At the end of the work shift and before you check,
15.
adjust, clean, or repair the system, follow the
Pressure Relief Procedure, page
18.
Pressure Relief Procedure, page
Stop
Stop
Shutdown
Shutdown
18.
19.
18.
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