Page 40 of 63 Pages
11.10 Replacing Multi-Purpose Valve
Caution:
Before starting, make sure that the electric cord is disconnected from
the power source and there is no pressure in the autoclave chamber.
1. Dismantle the autoclave cover (see para. 11.2 “Dismantling the Outer
Covers of the Autoclave”).
2. Drain the water from the water reservoir.
3. Pull the valve knob out.
4. Unscrew the 3 nuts that tighten the copper tubes to the multi-purpose
valve.
5. Unscrew the nut holding the valve to its base.
6. Pull out the valve.
7. Replace it with a new one. Make sure that the valve is tightened to the
valve base.
8. Reconnect the three tube nuts.
9. Return the valve knob to its place.
10. Turn the valve knob to FILL position.
11. Pour water into the reservoir.
12. Check the copper tube connections for leakage.
13. Replace the cover and tighten it to the base.
Occasionally, it is necessary to take off the screws that are on the shaft of the
valve in order to take the valve out of its base.
After installing the new valve, the screws should be replaced according to
the sketch on page 47.
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