Maintenance; Lubrication; Cleaning The Ram Plate - Graco SaniForce SDU Series Manual

Maintenance

Maintenance Maintenance

Lubrication

Lubrication Lubrication
The pump is lubricated at the factory. It is designed
to require no further lubrication for the life of the
packings. There is no need to add an inline lubricator
under normal operating conditions.
Cleaning Cleaning Cleaning the the Ram the Ram Plate Ram
This procedure only pertains to cleaning the ram
plate. If the pump lower also needs to be cleaned,
perform Cleaning the Pump Lower, page 24
This equipment stays pressurized during the
removal of the ram plate from the pump. To help
prevent serious injury from moving parts while you
remove the ram plate 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 tube 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
3A5402J
Plate Plate
instead.
See
22.
5. Remove the clamp at the large flange connection
where the ram plate attaches to the pump lower
and remove the ram plate mounting clamps
where the ram plate attaches to the ram plate
support rods.
6. If the ram plate doesn't independently separate
from the pump, use the air controls to slightly
raise the ram plate and pump off the baseplate.
Then, using open hands on opposite sides of
the ram plate, apply downward hand pressure to
break the seal. When the ram plate is loose from
the pump lower unit, continue raising the ram
until the pump lower unit clears the ram plate.
Stop raising the ram.
7. Slide the ram plate out from under the pump
lower and lower the ram as far as possible.
8. If more than flushing of the pump
is necessary, follow the steps in
Cleaning the Pump Lower, page
9. Clean the ram plate:
a. Remove the ram plate inflatable seal or
disassemble the static wiper seal.
b. Open the blowoff assembly and clean if
necessary. Inspect parts prior to reassembly.
c. Use a cleaning solution compatible with the
product being unloaded and the materials of
ram plate construction.
d. Reassemble the ram plate assembly. For
directions on installing a ram plate seal, see
Install a Ram Plate Inflatable Seal, page
18.
e. Locate the ram plate under the pump lower.
Move fingers and tools out of the way and
slowly lower the pump into the ram plate.
10. Attach the ram plate to the pump lower and
re-attach the blowoff air hose, seal air hose, and
ram plate support rods to the ram plate.
Maintenance
24.
15.
23