
Instructions and Parts
SaniForce™ 6:
Specially de
only.
Maximum Working Air Pressure: 100
psi (0.7 MPa, 6.9 bar)
Maximum Working Fluid Pressure: 650
psi (4.5 MPa, 44.8 bar)
signed for use only in Graco SaniForce pail or drum unloader systems. For professional use
Important
Read all wa
system manuals. Save all instructions.
Safety Instructions
rnings and instructions in this manual and in related
1 Sanitary Pumps
3A5564A
EN
ROVEN QUALITY. LEADING TECHNOLOGY.
P

Contents
Models............................................................... 2
Related Manuals ................................................ 2
Usage................................................................ 4
Cleaning ............................................................ 4
Priming Piston Service........................................ 5
Disconnect the Pump ................................... 5
Disassemble the Pump................................. 5
Reassemble After Cleaning .......................... 6
Parts.................................................................. 7
Models
Pump Model Pump Lower
Replacement
25M912 25M906
25M912C31 25M906C31
Kits.................................................................... 8
Priming Piston Displacement Pump Model
25M906, 25M906C31 ............................ 9
Product Dime
Performance chart .............................................. 12
Technical Data ...................................................13
Graco Stand
Pump Type Approvals
Priming Piston Pump
nsions............................................ 11
ard Warranty....................................14
EC 1935
/2004
Related Manuals
Manual Number Title
400
3A5
3A5401
3A5402
5404
3A
3A1211
SaniForce Pail Unloader (SPU) System, Operation
iForce Pail Unloader (SPU) System, Repair/Parts
San
SaniForce Drum Unloader, Operation
SaniForce Drum Unloader, Parts
aniForce Air Motors
S
2
3A5564A

Usage
Usage
This pump must be used as part of a SaniForce pail
or drum unloader system. Refer to the appropriate
system manuals for operation instructions of this
pump when installed in those systems.
Cleaning
WARNING
PRESSURIZED FLUID HAZARD
This equi
relieved
from mov
as splas
Pressur
when you
check, o
PERSONAL PROTECTIVE EQUIPMENT
Wear appropriate protective equipment when
in the work area to help prevent serious injury,
including eye injury, hearing loss, or inhalation of
toxic fumes.
This procedure involves thoroughly disassembling
and cleaning the individual parts in the pump lower
unit. Prior to performing this procedure, flush the
pump and relieve pressure as described in the
system manuals, disconnect all hoses, and remove
thepumpfromthesystem.
pment stays pressurized until pressure is
manually. To help prevent serious injury
ing parts, or from pressurized fluid, such
hing in the eyes or on skin, follow the
e Relief Procedure in your system manual
stop pumping and before you clean,
r service the equipment.
Notes:
• Be sure to follo
standard code
• Use appropriate cleaning and disinfecting agents,
at intervals appropriate for product processed.
• Follow cleaning product manufacturer’s
instructions.
• The pump must
clean it.
1. Loosen the hand screw (13) and remove the
upper shield (6).
2. Clean thoroughly the surface between the upper
and lower shields.
3. Disassemble the fluid pump. See
Priming Piston Service, page 5 .
4. Wash all pump parts with an appropriate cleaning
solution at the cleaning product manufacturer’s
recommended temperature and concentration.
5. Rinse all pump parts again with water and allow
them to dry.
6. Inspect all pump parts and reclean if needed.
NOTE: Any damaged rubber parts must be
replaced as they could harbor microorganisms
that can contaminate the fluid.
7. Immerse all pump parts in an appropriate
sanitizer before assembly. Take the pump parts
out of the sanitizer one-by-one as needed.
8. Lubricate the moving pump parts and o-rings,
packings, and seals with appropriate waterproof
sanitary lubricant.
9. Circulate the sanitizing solution through the pump
and the system prior to use.
w your national and state sanitary
s and local regulations.
be disassembled to thoroughly
4
3A5564A

Priming Piston S
ervice
Priming Pisto
Disconnect th
ePump
n Service
WARNING
PRESSURIZED FLUID HAZARD
This equipment stays pressurized until pressure is
relieved manually. To help prevent serious injury
from moving parts, or from pressurized fluid, such
as splashing in the eyes or on skin, follow the
Pressure Relief Procedure in your system manual
when you stop pumping and before you clean,
check, or service the equipment.
PERSONAL
Wear appropriate protective equipment when
intheworkareatohelppreventseriousinjury,
including eye injury, hearing loss, or inhalation of
toxic fumes.
This procedure involves thoroughly disassembling
and cleaning the individual parts in the pump lower
unit. Prior to performing this procedure, flush the
pump and relieve pressure as described in the
system manuals, disconnect all hoses, and remove
thepumpfromthesystem.
1. Release the upper clamp (123) holding the
displacement pump to the tie rod plate (122).
2. Slide the pump down from the air motor. Tilt the
pump and pull the displacement rod (117) out of
the coupler (C). Remove the gasket (102).
Note: Be careful not to scratch the displacement
rod.
PROTECTIVE EQUIPMENT
Figure 1 Remove displacement pump.
Disassemble the Pump
Note: Pump Repair Kit 24G550 is available.
Purchase the kit separately. Kit parts are
marked with an * in the parts section. See
Priming Piston Displacement Pump Model 25M906,
25M906C31, page 9 .
1. Remove the retaining pin (116) from the
connecting rod (109). Slide off the priming piston
(108).
2. Release the lower clamp (123) to remove the
intake valve housing (107) from the pump
cylinder (101). Remove the gasket (102).
3. Remove the poppet (114), spring (113), and
valve stop (111) off the connecting rod (109).
4. Remove the bearing (112) from the center of the
valvestop(111).
5. Remove the packings (115) from the cen
the poppet (114).
ter of
3A5564A 5
Figure 2 Remove priming piston.
6. Push the displacement rod (117) out through the
bottom of the cylinder (101).