Graco SaniForce Parts list manual

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

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
Kits.................................................................... 8
Priming Piston Displacement Pump Model
25M906, 25M906C31 ............................ 9
Product Dimensions............................................ 11
Performance chart .............................................. 12
Technical Data ...................................................13
Graco Standard Warranty.................................... 14
Models
Pump Model Pump Lower
Replacement
Pump Type Approvals
25M912 25M906
25M912C31 25M906C31
Priming Piston Pump
EC 1935/2004
Related Manuals
Manual Number Title
3A5400 SaniForce Pail Unloader (SPU) System, Operation
3A5401 SaniForce Pail Unloader (SPU) System, Repair/Parts
3A5402 SaniForce Drum Unloader, Operation
3A5404 SaniForce Drum Unloader, Parts
3A1211 SaniForce Air Motors
23A5564A

Related Manuals
3A5564A 3

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 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 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.
Notes:
•Be sure to follow your national and state sanitary
standard codes and local regulations.
• Use appropriate cleaning and disinfecting agents,
at intervals appropriate for product processed.
• Follow cleaning product manufacturer’s
instructions.
• The pump must be disassembled to thoroughly
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.
43A5564A

Priming Piston Service
Priming Piston Service
Disconnect thePump
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 PROTECTIVE EQUIPMENT
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.
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 center of
the poppet (114).
Figure 2 Remove priming piston.
6. Push the displacement rod (117) out through the
bottom of the cylinder (101).
3A5564A 5

Priming Piston Service
7. Remove the retaining pin (118), o-ring (119), and
ball (110). Pull the connecting rod (109) from the
displacement rod (117). Remove the seal (120).
Figure 3 Disassemble piston valve.
8. Remove the packing housing (103) from the top
of the cylinder (101). Remove the bearing (106),
packing (105), and o-ring (104).
9. Clean and inspect all parts. Refer to
Cleaning, page 4 . Replace the parts as
necessary.
Figure 4 Remove packing housing.
Reassemble After Cleaning
Note: Any damaged parts must be replaced.
Note: Lubricate the o-rings, throat packings, and
piston seals with appropriate waterproof sanitary
lubricant.
1. Install the v-block packing (105) and bearing
(106) in the packing housing (103). The lips of
the packing must face down into the housing,
and the lip of the bearing must face up. Install
the o-ring (104) on the outside of the housing.
2. Install the seal (120) on the piston valve housing
at the top of the connecting rod (109). Place
the ball (110) on the seat of the housing. Install
the displacement rod (117) over the top of the
connecting rod so the holes in both parts align.
Secure with the retaining pin (118) and o-ring
(119).
3. Lubricate and place the packing housing (103) in
the top of the cylinder.
4. Lubricate and slide the displacement rod (117)
up through the cylinder so it protrudes from the
packing housing (103).
5. Lubricate and install the packings (115) into the
center of the poppet (114).
6. Lubricate and install the bearing (112) into the
center of the valve stop (111).
7. Slide the valve stop (111), spring (113), and
poppet (114) onto the connecting rod (109).
8. Install the gasket (102) and the intake valve
housing (107). Secure the housing (107) to the
cylinder (101) with the clamp (123).
9. Install the priming piston (108) and retaining pin
(116) on the connecting rod (109).
10. Slide the displacement rod (117) into the coupler.
Then, attach the clamp (123) to hold the pump
to the motor base.
63A5564A

Parts
Parts
Complete Pump Models
25M912
25M912C31
1Apply PTFE tape to threads.
2Hand tighten only.
3Apply sanitary lubricant to ease
assembly.
4Apply medium-strength (blue)
thread locker.
5Apply an appropriate
medium-strength thread locker
on the nut (13) every time it
is installed to prevent it from
coming loose during operation.
Torque to 30-36 ft-lb (41–49
N-m). Do not over tighten.
3A5564A 7

Kits
Complete Pump Model 25M912, 25M912C31
Ref. Part Description Qty.
124G785 MOTOR, SaniForce; 3.5 in; see manual 3A1211 1
2DISPLACEMENT PUMP: 1
25M906 EN 10204, type 2.1
25M906C31 EN 10204, type 3.1
3 16A938 COUPLER 1
4 16A947 TIE ROD, 7 in. (178 mm) between shoulders 3
5102216 NUT, lock, 5/8-11, sst 3
616G464 SHIELD, upper; includes grommets (Ref. 21) 1
716G465 SHIELD, lower; includes fasteners (Ref. 8) and grommets (Ref. 21) 1
8 118134 SCREW, cap; M8 x 1.25, sst 4
10 24G862 FITTING, air inlet, 1/2 npt, includes Ref. 23 1
11 16C946 FITTING, 3/4 npt 1
12 165053 O-RING, PTFE 1
13 16C306 NUT, hand 1
15▲ 17W547 LABEL, warning, not shown 1
21 —GROMMET;
see Kits
6
22 16G084 FITTING, air inlet, 1/2 npt 1
23 166702 O-RING, air inlet, buna-n, included with Ref. 10 1
▲Replacement Danger and Warning labels, tags, and cards are available at no cost.
‡ These parts are not used with Model 25D363.
Kits
Grommet Kit 16G628
Ref. Part Description Qty.
21a* —GROMMET, air motor
piston rod
1
21b —GROMMET, air fitting 2
21c —GROMMET, tie rod 3
* Order Kit 16H925 for qty. 3 of the piston rod grommet.
83A5564A

Priming Piston Displacement Pump Model 25M906, 25M906C31
Priming Piston Displacement Pump Model 25M906,
25M906C31
3A5564A 9

Priming Piston Displacement Pump Model 25M906, 25M906C31
Priming Piston Displacement Pump Model 25M906, 25M906C31
Ref. Part Description Qty.
101 902980 CYLINDER, pump1
102* 166117 GASKET, 2 1/2 in. (64 mm),
buna-n
2
103 180918 HOUSING, packing 1
104* 166119 CYLINDER SEAL, buna-n 1
105* 180238 THROAT PACKING, buna-n 1
106* 605752 BEARING, sleeve 1
107 17S673 HOUSING, inlet valve 1
108 195214 PISTON, priming 1
109 16C195 ROD, connecting 1
110 103462 BALL, 3/4 in. (19 mm),
stainless steel
1
111 195215 STOP, inlet valve 1
112* 604016 BEARING, priming piston 1
113* 501095 SPRING, ball check 1
Ref. Part Description Qty.
114 604018 POPPET, inlet valve 1
115* 603778 PACKING, inletvalve,
neoprene
2
116 604008 PIN, retaining, priming piston 1
117 902983 ROD, displacement 1
118 169845 PIN, retainer 1
119* 167972 O-RING 1
120* 167971 SEAL, piston, neoprene 1
122 16A945 PLATE, tie rod 1
123 620223 CLAMP, 2 1/2 in. (64 mm) 2
130 172687 TAG, Instruction, not shown 1
* Parts included in Repair Kit 24G550.
10 3A5564A