Toto CST474CEFG Installation Manual page 8

Servicing the Flush Valve (ST453 Model Tank Only)
1) Turn off water supply and flush the toilet.
Remove the remaining water from tank with a
sponge.
2) Remove the tank lid and place it upside down on
a clean surface.
3) Pull the dip on top of trip lever gear box as
shown.
4) Pull the gear box away and set on the side as
shown.(see Ill. 1 & Ill.2)
5) Rotate and pull up on the flush tower to remove
it (see Ill. 3).
6) Remove the grey rubber seal gasket and rinse
under running water to clean (see Ill. 4).
7) Place the gasket back on the flush tower.
8) Align and place the flush tower into housing and
gently press to snap and lock in place.
9) Replace the trip lever gear box and push down
on lever to lock in place.
10) Carefully install the tank lid back on the tank.
11) Flush the toilet several times making sure the
trip lever operates normally.
12) Check the water level in the tank and inspect for
signs of any leakage.
Ill. 2
MAINTENANCE INSTRUCTIONS
Ill. 3
Ill. 1
8
Ill. 4