Emergency Stop; Pump Shutdown; System Shutdown; Flushing And Storage - Graco SaniForce STU Operation

Operation
Emergency

Emergency Stop

Emergency Stop Stop
Manual control systems do not have this feature.
The STU 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. Restarting the pump
will start in slow mode for a period of time and
then switch to fast mode.
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

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

System Shutdown

Shutdown
System System Shutdown
Follow the Pressure Relief Procedure, page
Depending on the type of material, it may
be best to deflate the seal and raise the ram
plate out of the material or keep the ram plate
lowered in the bin. Some materials dry and
harden when exposed to air. Cover materials
when they are not being used.
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Flushing and
Flushing Flushing
• Flush before fluid can dry in the equipment, at
the end of the day, before storing, and before
repairing equipment.
• Flush at the lowest pressure possible. Check
connectors for leaks and tighten as necessary.
• Flush with a fluid that is compatible with the
fluid being dispensed and the equipment
wetted parts.
• Always flush the pump and relieve the
pressure before storing it for any length of
time.
• For long-term storage, thoroughly clean and
dry pump and platen parts.
Flush the pump often enough to prevent the
fluid you are pumping from drying or freezing
in the pump and damaging it. Store the pump
25.
at 32°F (0°C) or higher. Exposure to extreme
low temperatures may result in damage to
plastic parts.
25.
and Storage Storage
and Storage
NOTICE NOTICE NOTICE
3A5416L