Operation
Emergency Sto
p
Manual control systems do not have this feature.
The STU electr
o-pneumatic control box has an
emergency sto
p button below the display screen.
Pressing the
emergency stop button will stop
the pump but d
oes not depressurize the system.
Resetting th
e emergency stop places the system in
a ready state
. The system must be restarted by the
operator. R
estarting 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 Shut
down
At the en
d of the work shift and before you check,
adjust,
clean, or repair the system, follow the
Pressur
e Relief Procedure, page 24.
System Shutdown
Follow
the Pressure Relief Procedure, page 24.
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.
Flushing and S
torage
• 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.
NOTICE
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 at
32°F (0°C) or higher. Exposure to extreme low
temperatures may result in damage to plastic parts.
3A5416C
27
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