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Priming Piston Lower Cleaning

10. Remove the valve plate (108) and the piston

(107). Remove the bearings (110) from the
piston.

11. Stand cylinder upright. Remove the u-cup seal

assembly, which includes the base (103a), insert
(103b), o-ring (103d), and u-cup (103c).

12. Clean the parts and inspect them for wear or

damage. Replace them as necessary.

Reassemble

Reassemble

Reassemble After

After

After Cleaning

Cleaning

Cleaning

Note:

Note:

Note: Any damaged parts must

must

must be replaced as they

could harbor microorganisms that can contaminate
the fluid.

Note:

Note:

Note: Lubricate the o-rings, throat packings, and
piston seals with appropriate waterproof sanitary
lubricant prior to installation.

1.

Wash all pump parts with an appropriate cleaning
solution at the cleaning product manufacturer’s
recommended temperature and concentration.

2.

Rinse all pump parts again with water and allow
them to dry.

3.

Inspect all pump parts and reclean if needed.

4.

Immerse all pump parts in an appropriate
sanitizer before assembly. Take the pump parts
out of the sanitizer one-by-one as needed.

5.

Lubricate the moving pump parts and o-rings,
packings, and seals with appropriate waterproof
sanitary lubricant.

6.

Install the bearings (110) and the u-cup seal
(109) on the piston (107). The lips of the piston
u-cup must face up. Install the valve plate (108)
and piston assembly on the displacement rod
(105). Cutout on piston must face down.

7.

Use wrenches on the displacement rod flats and
the piston rod flats to reconnect. Torque to 60-70
ft-lb (81-95 N•m).

8.

Install the packing stack (116*) into the intake
valve housing (115). Maintain the following
order: shims (116a), female gland (116b), five
v-packings (116c) with the lips facing up, and
male gland (116d). Loosely thread packing nut
(117) into the valve housing (115).

9.

Install the u-cup (103c) and insert (103b) into
the u-cup seal assembly base (103a). Throat
u-cup lips must face down. Then install the o-ring
(103d).

10. Lubricate the displacement rod/piston rod

assembly and slide into the cylinder from the top.

11. Install the u-cup assembly (103) in the top of the

cylinder (101). Reassembly may be difficult. Use
steady force until the assembly drops into place.

12. Turn the pump on its side. Use a rubber mallet

to tap the displacement rod so the piston rod
extends well out of the cylinder.

13. Install the valve plate (112) and the spacer (113)

into the bottom of the cylinder. Install the cylinder
o-ring (123).

14. Lubricate the piston rod and the inside of the

packing nut (117) and intake valve housing (115).
Slide the assembly onto the piston rod, then use
two wrenches to tighten the valve housing.

3A5799E

5

Содержание SaniForce 3A5799E

Страница 1: ...er unloader unloader systems systems systems For For For professional professional professional use use use only only only Important Important Important Safety Safety Safety Instructions Instructions...

Страница 2: ...oduct Dimensions 11 Performance chart 12 Technical Data 13 Graco Standard Warranty 14 Models Models Models Pump Model Pump Lower Replacement Pump Type Approvals 25N008 25N004 25N008C31 Priming Piston...

Страница 3: ...p 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 Prior to pe...

Страница 4: ...the valve plate guide 119 with a wrench Use another wrench to remove the priming piston nut 122 3 Remove the priming piston 121 and the valve plate 120 4 Remove the clamp 118 from the base 102 Then re...

Страница 5: ...ngs 110 and the u cup seal 109 on the piston 107 The lips of the piston u cup must face up Install the valve plate 108 and piston assembly on the displacement rod 105 Cutout on piston must face down 7...

Страница 6: ...h a wrench Use another wrench to tighten the priming piston nut 122 Reconnect Reconnect Reconnect the the the Pump Pump Pump 1 Set the displacement pump in place Align the air motor and set it on top...

Страница 7: ...hten only 3 Apply sanitary lubricant to ease assembly 4 Apply medium strength blue thread locker 5 Apply an appropriate medium strength thread locker on the nut 18 every time it is installed to preven...

Страница 8: ...6C010 TIE ROD 3 8 102216 NUT lock 5 8 11 sst 3 9 16E030 SHIELD upper includes grommets Ref 27 1 10 118134 SCREW cap M8 x 1 25 sst 4 12 16E028 SHIELD lower includes fasteners Ref 8 and grommets Ref 27...

Страница 9: ...Priming Piston Displacement Pump Model 25N004 Priming Priming Priming Piston Piston Piston Displacement Displacement Displacement Pump Pump Pump Model Model Model 25N004 25N004 25N004 3A5799E 9...

Страница 10: ...86138 GLAND female 1 116c 167484 PACKING 5 116d 186139 GLAND male 1 117 167486 NUT packing 1 118 24C658 CLAMP 2 119 167480 GUIDE valve plate 1 120 167479 PLATE valve 1 121 172200 PISTON priming 1 122...

Страница 11: ...Product Dimensions Dimensions Dimensions Model Model Model A A A in cm B B B in cm C C C in cm D D D in cm 25D363 45 0 114 3 20 6 52 3 15 6 39 6 6 5 16 5 Add 4 7 in 12 cm to allow for full extension o...

Страница 12: ...Performance chart Performance Performance Performance chart chart chart 12 3A5799E...

Страница 13: ...xhaust 3 4 npt m Fluid Inlet Type 4 1 in 10 4 cm Priming Piston with flange for 6 in 15 2 cm Tri Clamp Fluid Outlet 2 in 5 1 cm Tri clamp Weight 122 lb 55 3 kg Wetted Parts 316 Stainless Steel Buna N...

Страница 14: ...ARRANTY WARRANTY WARRANTY AND AND AND DISCLAIMS DISCLAIMS DISCLAIMS ALL ALL ALL IMPLIED IMPLIED IMPLIED WARRANTIES WARRANTIES WARRANTIES OF OF OF MERCHANTABILITY MERCHANTABILITY MERCHANTABILITY AND AN...

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