I_ | SECTION5 | SERVICE TECH. INFORMATION |
C. ROTARY VALVE SERVICE
IMPORTANT: Before working on the valve, turn
off the water supply and disconnect from electrical power•
To relieve pressure:
•.. THREE VALVE BYPASS: Close the inlet and open a filtered water faucet• Then close the outlet valve and open the bypass valve.
•..SEARS SPECIAL BYPASS: Slide the bypass valve stem to bypass position• Loosen the three
hex head screws (see @ in drawing) toward the
backside of the valve to allow pressure water to bleed out (catch water with a rag).
DISASSEMBLY
To remove a part or group of parts, refer to the
valve drawing. A common screwdriver or nut
driver, Phillips screwdriver and pliers are the only
tools needed to completely disassemble.
SERVICING THE VALVE
Inspect all
Inspect the bottom surface of the rotor and disc for
scratches, chips or wear.
NOTE: If a replacement is needed, be sure to use
the current replacement part.
ASSEMBLY
Be sure all parts are in place and in the proper
position• Lubricate ALL
FDA approved silicone grease• To install the rotor seal, first place the seal into the valve groove, round side down (see cross section)• Apply a light coating of silicone grease to the seal's crossing ribs. Then carefully center the wear strip on the
seal, and push it downward onto the seal.
Install the nozzle and venturi seal and drain seal.
Assemble two
Lower the cover onto the valve body and rotor shaft• Then install the cover holding screws•
Before tightening the screws, install the valve cam
and gear, then turn the rotor (clockwise only) to service postion.
f
spacer
switch _
olate
valve cam
_andgear
\
flow plug (back-
wash and fast rinse
flow rate control) rotor&disc
W_r Stno
__ | drain seal |
rotor seal |
nozzle and venturi seal
Tighten the screws using a criss- cross pattern. If a
torque wrench is available, torque to
Lubricate the gear on the motor, and the valve
cam gear with Molykote grease, or other high quality gear lubricant.
Be sure to orient switch as shown, with lever to- ward the valve cam.
Problems, Questions? Call