Cleaning The Pump Lower; Flushing And Storage - Graco SaniForce SDU Series Manual

Maintenance
Cleaning the the Pump Pump Lower
Cleaning Cleaning the Pump
This equipment stays pressurized during the
removal of the ram plate and pump lower from the
pump. To help prevent serious injury from moving
parts while you remove the parts for cleaning, keep
fingers above the ram plate. Do not attempt to
grab the ram plate at the edges while it is above
the baseplate.
When done using the SDU for the day, or when
cleaning is needed so that a different product can be
pumped, perform the following:
1. Remove the drum.
Change the Drum, page
2. Perform the Pressure Relief Procedure, page
3. Lower the ram so that the ram plate is resting flat
against the baseplate.
4. Disconnect the blowoff air hose and ram plate
seal air hose at the ram plate.
B B B Blowoff air hose attachment location
P P P Ram plate support rod attachment locations
S S S
Seal air hose attachment location
5. Remove the ram plate mounting clamps where
the ram plate attaches to the ram plate support
rods.
6. Refer to the pump manual for instructions on how
to disconnect the pump lower from the air motor.
24
Lower
Lower
See
22.
7. Raise the ram assembly to lift the air motor off of
the pump lower. Stop raising the ram when the
air motor clears the pump lower.
8. Slide the ram plate and pump lower out from
under the air motor.
9. Clean the pump lower. See the pump manual for
instructions on cleaning.
10. Clean the ram plate.
Cleaning the Ram Plate, page
11. Once all ram plate and pump lower parts are
cleaned, install the ram plate and pump lower
on the air motor. Attach all air fittings and flange
clamps.
Flushing Flushing and Flushing and Storage and
18.
• 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
the pump and ram plate 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 at
32°F (0°C) or higher. Exposure to extreme low
temperatures may result in damage to plastic parts.
See
23.
Storage Storage
NOTICE
NOTICE NOTICE
3A5402J