Thetford 19613 User manual

Form #19632 Rev. 1/15/08
Tools needed
• Flat-bladescrewdriver •PhillipsScrewdriver
• AdjustableWrench  •Scrapingtool
• SocketWrenchwith7/16”socket •Pliers
• SiliconeGrease 
• DAPDynaexCaulkorequivalent(availableatmosthardwarestores)
Note:
• Readallinstructionsbeforebeginningwork.
To Remove Toilet From Floor
1. TurnoffRVwatersupplyperRVOwner’sManual.
2. Pressbothkeypadbuttonsatthesametime,twice,toopenbladeand
drainbowlofwater.If control or mechanism does not work, you will have
to open the valve manually. Remove the Sound Deadening Insulation
(if present) from the back of the mechanism to access the mechanism
lead screw (Fig. E). Turn knob (if present – otherwise use a 5/16” socket
wrench) clockwise to open the valve.
3. Pry off Bolt Caps with Flat-blade screwdriver. Use
7/16-inchwrenchtoremoveLagScrews.
Mechanism Assembly
Part #19613
White Mechanism Plate
Mechanism
Fig. D
Mounting
Flange
Mechanism
Tube Lip
Fig. A
newer plates have
a 2nd hole at front
Switch
box
Fig. B
Mounting Flange
4. TurnoffpowertoToiletatRV’sDCdistributionpanel.
5. TiltToilettowardyoutogainaccesstoconnections.
6. DisconnectToilet’s12-voltpowerhookuptoRV.
7. DisconnectWaterSupplyLinefromelbowconnectorbyhand.Use
AdjustableWrenchifnecessary,withcare.
8. RemoveToiletfromoorandplaceupsidedownontowelorsoftfabric
mat.
9. RemoveoldClosetFlangeSeal(maybefoundontoiletorinoorat
ClosetFlange).Discard.
10. CoverHoldingTankopeningtocontainodor.
To Remove Old Part
1. UsingScrewdriverhandle,tapout2MountingBushings(Fig.B).Save
them.
2. RemoveMountingFlange(Fig.B).
3. High Prole models only:IfExtensionTube(Fig.C)didnotcomeout
withMountingFlange,removeitandtheExtensionTubeSeal.Save.
4. Removeandsave4MechanismScrews(MS,Fig.D).
5. EaseMechanismAssemblyoffwhiteMechanismPlate.TogetMecha-
nismout,youmayneedtoremoveotherparts(Fig.A).ToremoveMetal
Bracket,loosenscrewsandswingout.ToremoveControllerAssembly
and/orSwitchBox,useaat-bladedscrewdrivertoprythemfromwall
ofunit.Removeoldadhesivepad(s).
6. Disconnect2(green/yellow) Wire Motor Leadsfrom Mechanism As-
sembly(Fig.A).Usepliersifnecessary.
7. DisconnectOverowTubeifpresent(pre3-16-03)fromMechanism
Assembly.DiscardMechanismifnotreturning.
(not present
on all mod-
els)
Fig. C
Shown
separatefor
clarity–these
itemsnor-
mallyremain
assembled HIGHPRO-
FILEONLY
Extension
Tube
Mounting
Flange Seal
Extension
Tube Seal
Clamp
Mounting Bushing
Controller As-
sembly
Motor Leads
Metal Bracket
Mechanism
RVToiletService Parts for Aria/Aria Deluxe

Mechanism Assembly
Part #19613 Page 2
8. RemoveBladeSealfromwhitemechanismplate.Discard.
9. Important: Ifyourmechanismplatehastwoholesatfront(dottedlinesin
Fig.D),ANDnoleakageissuspectedatfoamgasketarea,youdonotneed
toinstallthenewplateprovidedinthiskit.Skipdowntotheheading“To
ReplaceMechanism.” 
 ToremoveMechanismPlate,loosenthe3Screwsinwellnuts(WN,
Fig.D)andpulltheplateoffthebowl.Ifwell-nutsdonotcomeoutwith
theplatescrews,eitherpushthemthroughtotheinteriororre-insertthe
screwstopullthemout.Discardplateandwell-nuthardware.
10. ScrapeoffoldSealfromchinawithsharptool.Usemineralspiritsor
alcoholtoremoveresidue.
To Replace Mechanism Plate (if it has been removed)
1. Applya1/4”widecontinuousringofcaulksealantaroundthetopofthe
exposedsideoftheatfoamseal.(Fig.E).
2. Lineupwell-nutassembliesonthemechanismplatewiththeholesin
thechinabowl.Thenlineuptheopeningsandpressintoplace.Lightly
hand-tighten the well-nuts to temporarily secure its position.
To Replace Mechanism
1. Wetbladesealwithcleanwater.
2. Fullyseatnewbladeseal,lipup,ontoMechanismPlate(Fig.E).
3. Toavoiddamagingbladeseal,makesurebladeinnewmechanismis
fullyclosed.Turnmechanismleadscrewcounter-clockwisetoclose
valve(Fig.E).
4. Connect2MotorLeads,yellow-yellow,green-green(Fig.A).
5. Workingfromtheback,positionMechanisminToilet.NOTE: on some
low-prole units, it may be a tight squeeze. Alignmechanismover
MechanismPlate,pressdownandsecurewithfourscrews(MS,Fig.
D).
6. Turntoiletovertocheckcentering.Loosenwell-nutstore-centerif
needed.Do the permanent tightening down of the well-nut screws
at this time by hand. Tighten in a diagonal pattern to get an even
seal. Be careful not to overtighten and cause deection of the plate
at the edges. Wipe off excess sealant when done.
7. If Overow tube present(pre-3-16-03Arias):Cutapproximately1”off
OverowTube.RemovesiliconecapfromMechanism.Formingafull
loop,reattachtoMechanism.Tuckinandawayfromleadscrew.
If Overow tube not present: LeavesiliconecaponMechanism;
proceedtonextstep.
8. IfyouremovedtheControllerAssemblyand/ortheSwitchBox,re-install
now,using the adhesive foampads provided. If youremoved Metal
Bracket,reinstall.
9. High Prole:ToinstallExtensionTube(RefertoFig.C):
 a.Lubricate sealing surface ofExtension Tube Seal withsilicone
grease.
 b.InstallExtensionTubeSealonExtensionTube.
 c.InstallExtensionTubeandsealassemblyonMechanism.Makesure
thatsealisseatedatleast1/2inchbelowMechanismtubelip.
 d.EnsureHoseClamponMountingFlangeSealistight.
 e.LubricateMounting Flange Seal sealingsurface with Silicone
Grease.
 f.InstallMountingFlangeandSealassemblyonExtensionTube.Make
surethereisatleasta1/2”overlapbetweentheExtensionTube
andMountingFlangeSeal.
Low Prole:ReplacetheMountingFlangeSealontothelipofthe
MountingFlange.InstallMountingFlangetoMechanism.(Noexten-
siontubeisused.)
10. Replace2MountingBushingswithatsurfaceout.
To Test Mechanism Operation
1. ConnecttoilettoRV’s12VDCpower.
2. Turnon12VDCtotoiletatRVpowerdistributionpanel.
3. PresstheFlushbuttononKeyPadandobservemechanismoperation.
Thesolenoidvalveswillclickonandoffduringtheushcycle.
4. PressbothKeyPadbuttons,twice,toopenblade.
To Replace Toilet To Floor
1. SecurenewClosetFlangeSeal,lipsideup,toToilet.
2. SetToiletcloseenoughtohookupwatersupply.
3. ReconnectWaterSupplyLine.
4. Turnonwaterandcheckforleaksatthewaterconnection.Correctany
leakage.
5. PositionToiletoverange.ArrangewiringclearofMechanismLead
Screw(Fig.E)andbaseoftoilet.
6. SecuretooorwithLagScrews.Tighten.
7. PressToiletushbuttoncontrolstoaddwaterandtoushtest.Check
forleaks.
8. ResecureBoltCaps.
Flat Foam
Seal
Mechanism
Lead Screw
Blade
Seal
Mechanism
Plate
Caulk Sealant
Fig. E
Well-nut
ass’y