Thetford 19624 - Mechanism Plate - Manual

Form #19642B Rev. 01/17/08
Fig. B
Mounting Flange
Mounting Bushing
White Mechanism Plate
Mechanism
Fig. C
Fig. A
Power supply
connector
Mechanism
End Cap
Mechanism
Lead Screw
Overflow Tube
newer plate shape
older plate shape
Water sup-
ply hookup
Tools needed
• Flat-blade screwdriver
• Adjustable Wrench
• Pliers
• DAP Dynaflex 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 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. A). Turn the knob shown if present or use a 5/16” socket wrench to
turn the screw and open the valve.
3. Pry off Bolt Caps with Flat-blade screwdriver. Use wrench to remove
1/2-inch Lag Screws.
4. Swivel Toilet to gain access to back.
5. Turn off RV’s power supply to the Toilet.
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. Place an old towel or soft cloth on work surface. Remove Toilet from floor
and place upside-down on work surface.
9. Remove old Closet Flange Seal (may be found in toilet or in floor at Closet
Flange). Discard.
10. Cover Holding Tank opening to contain odor.
To Remove Old Part
1. Tap out 2 Mounting Bushings (Fig. B) and remove Mounting Flange.
2.
High profile models only: Remove Extension Tube from Mechanism
Assembly (if it did not come out with the Mounting Flange).
3. Remove 4 Mechanism Screws (MS, Fig. C).
4. Remove Mechanism Assembly from white Mechanism Plate.
5. Loosen 3 Well Nut Screws (WN, Fig. C). Pull Mechanism Plate with 3
Well Nuts/screws from china toilet body. Discard plate and hardware.
6. Scrape off old Seal with sharp tool. Use mineral spirits to remove resi-
due.
To Replace Mechanism Plate
1. Apply a 1/4” wide continuous ring of caulk sealant around the top of the
exposed side of the flat foam seal. (Fig. E).
Mechanism Plate Package
Part #19624
NOTE: this Mechanism
Plate works only with units
manufactured after 7/6/01.
See label on lower front of
toilet bowl.
RV Toilet Service Parts for
Aria/Aria Deluxe