Thetford C2 Assembly instructions

TOILET REPAIR GUIDE
CONTENTS
Porta Potti
Bellows, Inlet Tube & Flush Tube Replacement Page 1-2
Float Arm Replacement Page 3
Vent seal, Lipseal & Vent Button Replacement Page 4-5
Bellows to Piston Pump Exchange Page 6
Cassette C2/C4
Pump Replacement Page 7-8
Vent Seal and Lip Seal Replacement pre 2000 Page 9-10
Bellows, Inlet Tube & Flush tube for Early C4 Page 11-12
C2 Vent Button Replacement Page 13
Flush Mechanism C2 Page 14-15
Drain Tube Page 16-17
Automatic Vent Page 18
Float Arm Replacement Page 19
Level Indicator Page 20
Flush tube Page 21
Blade Mechanism Page 22-23
C2
Lip Seal After 2000 Page 24
Cassette C200
Blade Opener Page 25-26
Level Indicator Page 27-29
Manual Pump Page 30-31
Float Arm Page 32
Seat Hinge Pin Page 33
Lip Seal Page34
Blade Handle Page 35-36
Cassette C400
Fuse Replacement Page 37
Reed Switch Page 38
Control Panel Removal Page 39-40
Pump Replacement Page 41-43

1. 07016-07024 Inlet tube / 07862 Bellow
A.
Disassemble water tank from waste tank and, take
seat & cover off.
B. Cut half off the
bellow with the
knife and, take
the bellow out.
C.
D.
Take the inlet tube off the bellow and, (re)place
it on the new bellow.
Note: Make sure that the flapper inside inlet tube
is pointing downwards when assembled on the
new bellow.
Inlet tube Flapper
E. Connect bellow
to the flush tube
and, press it back
into the water tank.
Flush tube
F. Place seat & cover back onto the water tank.
Note : Turn the
water tank around
when holding the
bellow with the
pincers.
Take the bellow off
the flush tube.
1

Leaflet no. 07032/062001
2. 07031 Flush tube
D. Go inside nozzle
with the long nose
pliers and, push it
into the water tank.
Nozzle
E. Bend the new flush tube into a horseshoe shape and place an
elastic band around it half way down, forcing it to remain in
this position.
For taking out the bellow see point A, B and C on the front page.
F. Once in view the nozzle
may then be gripped with
a long nose pliers and
pulled back into the toilet
bowl through the hole.
G. When pulling the nozzle through the hole,
make sure that the small rib on the nozzle
is pulled inside the toilet bowl.
Due to the horseshoe shape of the flush tube, when refitted, the
nozzle will be guided back up towards the hole at the entrance of
the bowl.
Small rib
Note : Before refitting,
remove the elastic band.
2

21322 Float arm
2. Porta Potti
Note : If the float retainer is still in the waste tank (float arm has fallen off), the new float arm can not be
assembled. Float retainer has to be taken out first. This can be done with a small flat screwdriver.
As the waste tank is welded, this can only be done through the hole in the middle.
Inside view to take the
float retainer out.
Place screwdriver
between rib and float
retainer and lift it up.
A.
Float arm
Float retainer
B.
For placing the new
float arm, open the
blade and go with
your hand in the
waste tank.
Magnet always has to
point to the outside of
the waste tank.
Inside view
waste tank. Press the float retainer
in.
C.
Leaflet no. 21774/052001
Place where float arm
has to be assembled
Position float arm,
view from the outside.
Magnet pointed
to the outside
3

1. 07102 Ventseal / 07069 Ventseal
2. 07101 Lipseal / 07143 Lipseal
1.
2.
Push the ventseal
down, out of the
inside groove.
Pull the ventseal
out through the
hole.
Hold the ventseal
in position with the
flat screwdriver (1),
while closing the blade
slowly (2).
Pull the lipseal
out of the
inside groove.
Push the lipseal
into the inside
groove, and close
the blade.
Note: Top has to
be pushed in first.
Inside groove
Inside groove
A.
B.
C.
A.
B.
C.
4

3. 07524 Vent button / 29314-62 Vent button
Leaflet no. 21283/042001
3.
2.
Go with your hand
in the waste tank
and press the vent
button (3).
While pressing
the vent button,
pull the seal
retainer loose (1).
1 2 3
1. Seal retainer
2. Spring
3. Vent button
Bring new seal
retainer (1) and
spring (2) in
position and click
the vent button (3)
into the seal retainer
1.
1.
3.
A.
B.
C.
5

Disassemble water tank from waste tank and, take
seat & cover off.
Cut half off the
bellow with the
knife and, take
the bellow out.
Note : Turn the
water tank around
when holding the
bellow with the
pincers.
Take the bellow off
the flush tube.
Leaflet no. 35305/092005
25817-79 / 25818-68/79 Piston pump
A. Change over from bellow to piston pump
Flush tube
Note : before placing
the Piston Pump, please
remove the grey sealant
which was used for the
bellow.
Take the piston pump
and connect it to the
flush tube.
Place the piston pump
on its place and press it
back into the water tank
6

16374 Pump
Tissue well
Tissue holder
A.
Take tissue well and
tissue holder out to
get to the location of
the pump.
Tissue well
Disconnect the
flush tube from
the pump.
B.
Unscrew the screw
on the pump retainer
and take complete pump
out of the water tank.
C.
Pump retainer
D.
Tools which are needed :
1. Screwdriver (crosshead)
2. Stanley knife
3. Combination pliers
4.Wire-stripper
5.Connector pliers
6. Hot-air gun
1.
1. 2. 3.
6.
5.
4.
1. Pump
2. Pump retainer
3. Shrinktube
3. 1.
2.
Cut the cable just
above the pump with
the combination pliers.
F.
Cut the white wire
insulation off so that
the blue and brown
wire stay intact and
strip the blue and
brown wire with the
wire-stripper.
G. Place the pump retainer
and shrinktube on the
new pump before
Note : Cassette toilets produced between 1987 and 1989 have
two black connectors on the white cable.
If this is the case, the white cable has to be cut above
the black connector. Both connectors have to be taken
off.
E.
connecting the wires to each other
(blue-blue/brown-brown) with the connector pliers.
C2
7

H.
Leaflet no. 21036/062001
Place the
shrinktube
over the connected wires and
melt the shrinktube with the hot-air gun.
*Melting the shrinktube will prevent that the
connected wires will come in contact with the
water in the water tank.
Note : When melting the shrinktube make
movements from left to right so that the
shrinktube can melt gradually.
CAUTION : Make sure that the shrinktube is melted completely to the white wire insulation as
otherwise a short circuit can occur.
Also keep in mind that the shrinktube should not be touched after melting, because
of burning.
I. Connect flush tube back onto
the pump and screw the pump
back into the water tank.
Place tissue holder and
tissue well back into
the water tank.
J.
8

8x
Seal cover
8x
20339 Ventseal
A. Open the blade,
and depress the
ventseal (1) around
outer edge of seal (1a).
Take the ventseal out
(2).
1. 2.
B. Bring new ventseal
on its place as shown.
Thinner flange has to
be on the float which is
inside the waste tank.
Thinner flange Float
Depress the ventseal
through the hole,
from the outside.
Note: Make sure that
the ventseal is lying in
the middle of the hole,
when looking from the top.
C. Go with your hand
in the waste tank and
press against the
float (ventseal will
be pressed into its place).
Outside view:
float inside waste tank Inside view: press against float
1a.
Early C2
9