SmartControl™ Meter & TouchPoint™ 67 9E-926
Operation Instructions
7.4 Meter Maintenance
All user serviceable parts are accessible without the use of
tools. There are only two gaskets, one O-ring seal, and one
diaphragm assembly to maintain.
7.4.1 Replace the Diaphragm Assembly
1. Shut off vacuum to the meter.
2. Loosen the top lock ring by twisting counterclockwise ¼
turn.
3. Remove the ring and the top cap.
4. Grasp the exposed spring, turn slightly to break the seal
and pull upward. The diaphragm assembly and the plunger
will come out together.
5. Hold the plunger in one hand and twist off the diaphragm
assembly from the top of the plunger. It may be necessary
to squeeze the sides of the plunger near the top to relieve
pressure on the ngers that secure it.
6. Reassemble the diaphragm assembly by simply snapping
the new one on to the top of the plunger.
7. Always change the plunger O-ring when replacing the dia-
phragm assembly.
8. Reassemble in meter by dropping into opening in the top
and replacing the cap and tightening the lock ring.
9. Reattach the vacuum hose if it came loose.
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