Kohler K-10956 Maintenance Manual page 14

Clean the Screen/Replace the Piston (cont.)
NOTE: If required, vinegar may be used in order to remove hard
water deposits.
Using gentle brushing and rinsing, remove all debris from the
screen on the piston.
NOTE: Replace the piston as a complete assembly only. The piston
and screen are not serviced separately.
Insert the piston into the valve body.
Insert the piston cover (with attached solenoid) into the valve
body. Place the O-ring on top of the piston cover.
NOTE: If the nut is not fully tightened, the valve will run
continuously.
Thread the large retaining nut into the valve body and securely
wrench tighten to 59 ft lbs (80 Nm).
Connect the DC sensor connector to the solenoid connector.
Place the cap on the valve body and secure with the setscrew.
Open the control stop valve (refer to the "Control Stop Valve
Operation" section).
Verify that the valve functions.
1058866-5-D 14 Kohler Co.