Graco SaniForce 4150 - Maintenance; Lubrication; Flushing and Storage; Routine Cleaning of Product Contact Section of Pump

Repair
Reassemble Reassemble
Reassemble
the the
the
Standard Standard
Standard
Diaphragms Diaphragms
Diaphragms
NOTICE NOTICE
NOTICE
Afterreassembly,allowthethreadlockertocure
for12hours,orpermanufacturer’sinstructions,
priortooperatingthepump.Damagetothepump
willoccurifthediaphragmshaftboltloosens.
TIP: TIP:
TIP:
Ifyouarealsorepairingorservicingthecenter
section,followCenterSectionRepair,page19,
beforereplacingdiaphragms.
1.Lubricateandinstalltheshaftu-cups(106)so
thelipsface out out
out
ofthehousing(101).
2.Assemblediaphragm(10),backer(11)ifpresent,
andairsideplate(9)onto󰘱uidsideplate(12)
withscrew(14).Roundedsideofplate(9)should
facediaphragm.MakesurethesidemarkedAIR
SIDEfacesthecenterhousing.
NOTE: NOTE:
NOTE:
Threadlockermustbeappliedtoscrew
(14)asshownforalldiaphragmassemblies.
1
Applyahigh-strengththreadlockerto
attachthescrewtothediaphragmplate,
ifneeded.
2
Applyamedium-strengththreadlocker
totheshaftsideofthescrew.
3.Screwassembleddiaphragmassemblyintoshaft
(24)andhandtighten.
4.Greasethelengthofthediaphragmshaft(24),
andslideitthroughthehousing(101).
5.Assembletheotherdiaphragmassemblytothe
shaftasexplainedinstep2.
6.Usinga5/8in.wrenchholdthewrench󰘱atsof
onediaphragmassemblyandtorquetheother
diaphragmto60-70ft-lb(81-94N•m).
NOTE: NOTE:
NOTE:
Applywaterproof,sanitarylubricanttothe
clamp(21)andclampingsurfaceofthecover(4,
15)toeaseassembly.
NOTE: NOTE:
NOTE:
Toensureproperspacingandalignment
ofmanifolds,installclamps(21)looseenoughto
allowfor󰘱uidcovermovementbeforesecuring
thecoversandclampsinplace.
7.Alignthe󰘱uidcovers(4,15)andthecenter
housing.Securethecoverswiththeclamps(21)
andhandtighten.
NOTE: NOTE:
NOTE:
Applyafoodgradeanti-seizelubricanton
theclampthreadstoaidassembly.
NOTE: NOTE:
NOTE:
Ballpump󰘱uidcoversare
interchangeable.
NOTE: NOTE:
NOTE:
Flapper󰘱uidcoversarenot
interchangeableandtheirorientationis
criticalonhorizontalpumps.Horizontalpump
󰘱uidcoversmustbepositionedsothatthe
󰘱appershangdownfromthehingepinwhen
placedinthe󰘱uidcover.Installthe󰘱appervalves
(8)withthetextsidefacingtheseat.
8.Reassembletheballcheckvalvesandmanifolds
asexplainedinCheckValveRepair,page12.
3A6782F15