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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.