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20
Pump Disassembly (Continued)
8. Tounscrewtheimpellerfrom
theshaft,twisttheimpeller
counterclockwise.
9. Removetherotatingportionof
themechanicalsealfromtheimpeller.
10.Removethefourboltsfrom
thesealplatetothemotor,usinga
9/16inchwrench.
11.Placethesealplatefacedownon
aatsurfaceandtapout
thecarbonspringseat.
12.Cleanthesealplate,sealhousing,
andthemotorshaft.
Pump Reassembly/Seal Replacement
1. Wheninstallingthereplacementshaftseal,usesiliconesealantonthemetalportionbefore
pressingintothesealplateasshown.
2. Beforeinstallingtherotatingportionofthesealintotheimpeller,besuretheimpelleris
clean.Usealightdensitysoapandwatertolubricatetheinsideoftheseal.Pressthesealinto
theimpellerwithyourthumbsandwipeofftheceramicandcarbonfaceswithacleancloth.
3. Remountthesealplatetothemotor.
4. Greasethemotorshaftthreadandscrewimpellerontothemotorshaft.
5. Screwintheimpellerlockscrew(counterclockwisetotighten).
6. Remountthediffuserontothesealplate.Makesuretheplasticpinsandholdingscrewinserts
arealigned.
7. Greasethediffusero-ringandsealplategasketpriortoreassembly.
8. Greasetheboltthreads,assemblethemotorsubassemblytothestrainerpot-pumpbodyby
usingthetwo(2)throughboltsforproperalignment.Donottightenthethroughboltsuntil
allsix(6)boltsareinplaceandngertightened.
9. Fillthepumpwithwater.
10.Reinstallthepumplidandplasticclamp.
11.Primethepump.
Shaft Seal Replacement
TheShaftSealconsistsprimarilyoftwoparts,arotatingmemberandaceramicseal.Thepump
requireslittleornoserviceotherthanreasonablecare,however,ashaftsealmayoccasionally
becomedamagedandmustbereplaced.
Note: Thepolishedandlappedfacesofthesealcouldbedamagedifnothandledwithcare.
LOCK SCREW
SEAL
LOCK SCREW
SEAL
O-RING
SET SCREW
MOTOR
BOLT (4x)
MOTOR
BOLT (2x)
GASKET
SEAL
PLATE
IMPELLER
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