Graco Husky 2200 - Operation and Startup; Pressure Relief Procedure; Pre-Use Pump Flushing; Pump Startup and Adjustment

Repair
Diaphragm Diaphragm
Diaphragm
and and
and
Center Center
Center
Section Section
Section
Repair Repair
Repair
NOTE: NOTE:
NOTE:
Diaphragmkitsareavailableinarangeof
materialsandstyles.Seepages28–29.ACenter
RebuildKitalsoisavailable.Seepage23.Parts
includedintheCenterRebuildKitaremarkedwithan
*.Forbestresults,useallkitparts.
Disassemble Disassemble
Disassemble
the the
the
Diaphragm Diaphragm
Diaphragm
and and
and
Center Center
Center
Section Section
Section
1.FollowthePressureReliefProcedure,page10.
2.Removethemanifoldsanddisassemble
theballcheckvalvesasexplainedin
CheckValveRepair,page13.
NOTE: NOTE:
NOTE:
Youmaywishtoremovetheinner󰘱uid
coverbolts(5)asyouremoveeachmanifold,for
convenience.
3.Overmolded Overmolded
Overmolded
Diaphragms Diaphragms
Diaphragms
( (
(
PO PO
PO
models) models)
models)
a.Orientthepumpsooneofthe󰘱uidcovers
(2)facesup.Usea17mmsocketwrenchto
removethe󰘱uidcoverbolts(5,6),thenpull
the󰘱uidcoverupoffthepump.
b.Theexposeddiaphragm(12)willscrewoffby
hand.Theshaftwilleitherreleaseandcome
offwiththisdiaphragm,orremainattachedto
theotherdiaphragm.Ifthediaphragmshaft
bolt(14)remainsattachedtotheshaft(108),
removeit.Removetheairsidediaphragm
plate(11)andwasher(17).
c.Turnthepumpoverandremovetheother
󰘱uidcover.Removethediaphragm(andthe
shaft,ifnecessary).
d.Iftheshaftisstillattachedtoeither
diaphragm,graspthediaphragm󰘰rmlyand
useawrenchonthe󰘱atsoftheshaftto
remove.Alsoremovetheairsidediaphragm
plate(11)andwasher(17).Continuewith
Step5.
4.All All
All
Other Other
Other
Diaphragms Diaphragms
Diaphragms
a.Orientthepumpsooneofthe󰘱uidcovers
facesup.Usea17mmsocketwrenchto
removethe󰘱uidcoverscrews(5,6),thenpull
the󰘱uidcover(2)upoffthepump.Turnthe
pumpoverandremovetheother󰘱uidcover.
b.Holdthehexofone󰘱uidsidediaphragm
plate(15)witha1–1/2socketorboxend
wrench.Useanotherwrench(samesize)
onthehexoftheotherplatetoremove.
Thenremoveallpartsofeachdiaphragm
assembly.
5.Inspectthediaphragmshaft(108)forwearor
scratches.Ifitisdamaged,inspectthebearings
(107)inplace.Iftheyaredamaged,usea
bearingpullertoremovethem.
NOTE: NOTE:
NOTE:
Do Do
Do
not not
not
remove remove
remove
undamaged undamaged
undamaged
bearings. bearings.
bearings.
6.Useano-ringpicktoremovetheu-cuppackings
(106)fromthecenterhousing.Bearings(107)
canremaininplace.
7.Ifnecessary,useasocketwrenchtoremovethe
pilotvalves(111).
8.Removethepilotvalvecartridgesonlyif
necessaryduetoaknownorsuspectedproblem.
After After
After
removing removing
removing
pilot pilot
pilot
valves, valves,
valves,
useahextoremove
thecartridges(109),thenremovecartridge
o-rings(110).Ifstripped,usetwoscrewdriversto
screwoutthecartridge.
NOTE: NOTE:
NOTE:
Do Do
Do
not not
not
remove remove
remove
undamaged undamaged
undamaged
pilot pilot
pilot
valve valve
valve
cartridges. cartridges.
cartridges.
14
3A2714H