Graco SaniForce SPU.A01AAA1AA0C21, Operation

Page: 11 / 14

Maintenance
Cleaning Cleaning
Cleaning the
the
the Platen
Platen
Platen
This equipment stays pressurized during the
removal of the platen from the pump. To help
prevent serious injury from moving parts while you
remove the platen for cleaning, keep fingers above
the platen. Do not attempt to grab the platen at the
edges while it is above the baseplate.
PTFE PTFE PTFE platen platen platen shown shown shown
When done using the pail unloader system for the
day, or when cleaning is needed so that a different
product can be pumped, perform the following:
1. Remove the pail. See Change Pail, page 9 .
2. Lower the ram so that the platen is resting flat
against the baseplate.
3. Disconnect the blowoff air hose at the blowoff
port (K).
4. Remove the clamp at the large flange (L)
connection where the platen attaches to the
pump lower.
5. If the platen doesn’t independently separate from
the pump, use the air controls to slightly raise
the platen off the baseplate. Then, using open
hands on opposite sides of the platen, apply
downward hand pressure to break the seal.
When the platen is loose from the pump lower
unit, continue raising the ram until the lower unit
clears the platen. Move the ram director valve
(BD) handle to neutral to stop raising the ram.
6. Slide the platen out from under the pump lower
and lower the ram as far as possible.
7. If more than flushing of the pump is necessary,
follow the steps in the pump manual for cleaning
the pump lower unit.
8. Clean the platen:
a. Refer to the drawing at left for items of the
platen assembly.
b. Remove the cap nuts and disassemble the
platen assembly.
c. Use a solvent compatible with the product
being unloaded and the materials of platen
construction.
d. Reassemble the platen assembly. Tighten
the cap nuts hand tight, then torque to 40–50
in-lb in a crisscross pattern.
e. Raise the ram and locate the platen under
the pump lower. Move fingers and tools out
of the way and slowly lower the pump into
the platen.
9. If necessary, remove the lower unit of the pump
and disassemble for cleaning as specified in the
pump manual.
10. Attach the platen to the pump lower at the flange
(L) and re-attach the blowoff hose to the blowoff
port (K) on the platen, routing the hose through
the sanitary clamp handle eyelets.
3A5400B 11
Tel: 866-777-6060
Fax: 866-777-6383
Springer Pumps, LLC
Website: www.springerpumps.com
Int'l: +001 267 404 2910