KELOMPOK 12:
REPAIRS AND
MAINTENANCE
4-18. See Chapter 3 for
water-closet stoppages.
Flushometers
4-19. When the valve is not
flushing or will not stop flushing, repair the
flushometer (Figure 4-8).
If the flushometer is a—
• Diaphragm-type,
Step 1. Turn off the
water supply and remove the outer cover.
Step 2. Remove the inner
core. If the cover will not remove easily,
pry it off with a screwdriver.
Step 3. Remove the
relief valve.
Step 4. Remove the valve
seat.
Step 5. Remove the
clogged or worn diaphragm and clean.
Step 6. Install the new
diaphragm.
Step 7. Reassemble the
valve.
Step 8. Turn the water
supply on and check the valve’s operation.
• Piston-type,
Step 1. Turn the water
supply off and remove the outer cover and
gasket.
Step 2. Remove the inner
cover and the gasket.
Step 3. Remove the brass
screws and retaining plate.
Step 4. Remove the
clogged or worn rubber cup.
Step 5. Install the new
rubber cup.
Step 6. Reassemble the
valve.
Step 7. Turn the water
supply on and check the valve’s operation.
4-20. Use the steps below to
repair handles (Figure 4-9, page 4-10) when
there is a—
• Water leak at the handle.
Step 1. Turn the water
supply off at the angle valve and unscrew the
retaining nut.
Step 2. Pull out the
handle body containing all the parts up to the
packing nut.
Step 3. Grip the handle
body with a wrench and unscrew the packing
nut with another wrench.
Step 4. Remove the worn
packing washer and install the new
packing washer.
Step 5. Reassemble all
the parts.
Step 6. Turn the water
supply on and check the handle for leaks and
for proper operation.
NOTE: Replace
the Mylar® seal and tighten the retaining nut.
• Loose or wobbly handle.
Step 1. Turn the water
supply off at the angle valve and unscrew the
retaining nut.
Step 2. Pull out the
handle body containing all the parts up to the
packing nut.
Step 3. Grip the handle
body with a wrench and unscrew the packing
nut with another wrench.
Step 4. Grip the handle
body with a wrench and unscrew the bushing
with lock-grip pliers.
Step 5. Remove the worn
bushing spring or plunger and replace
worn parts with new ones.
Step 6. Reassemble all
the parts.
Step 7. Turn the water
supply on and check the handle for leaks and
for proper operation.
