APPENDIX C – M AI N TE N AN C E
66. .
Clean internal distilled
water tank
Clean external distilled
water tank
Safety valve
maintenance
Clean/replace the drain
filter
1. Arrange an empty container on the floor near the sterilizer and insert the free end of a
tube.
2. Unscrew the plug (1) from the rear draining point and plug in the other end of the tube.
3. Wait until the internal tank is completely drained and close the draining point with the
plug.
4. Prepare 4 litres / 1.06 US gal of distilled water mixed with 10% of pure alcohol, such as
isopropyl, and fill the supplied standard container
5. Fill the internal tank completely with this solution (see Chapter 5 – Instructions for Use
Filling distilled water for the procedure) and allow the solution to sit for 30 minutes.
DO NOT RUN ANY CYCLE DURING THIS PERIOD.
6. Now drain the internal tank and discard the solution. Close the draining point wi t h the
plug.
7. Run one empty (no load) cycle of your choice
1. Disconnect the external tank from the sterilizer and close the tank valve.
2. Fill the tank with a solution of distilled water and alcohol (10%), such as isoproply.
3. Allow the solution to sit for 30 minutes.
4. Drain the tank and discard the solution.
5. Fill the tank with water and drain it, to remove any residual alcohol solution.
6. Reconnect the tank to the sterilizer and refill with distill water.
1. Access the safety valve located on the rear of the machine.
2. Loosen the knurled locking ring with your fingers (or a suitable tool inserted in the two
holes of the ring itself), turning counter-clockwise until it reaches the end and turns
loosely.
3. Retighten the locking ring making sure the threads are properly engaged.
4. Definitively tighten the locking ring all the way down.
THE USER SHOULD PERFORM THIS OPERATION MONTHLY TO
GUARANTEE THE CORRECT FUNCTIONING OF THE VALVE OVER TIME.
AT THE END OF THE MAINTENANCE, MAKE SURE THAT THE LOCKING
RING IS COMPLETELY SCREWED ON AND TIGHTENED.
Over time various residues will accumulate inside the filter, obstructing the lower drain tube.
For cleaning (or replace) the filter, open the door of the sterilizer and remove the nut (1) with a
hexagonal wrench no. 14.
Then remove the fitting (2) and the filter (3).
Remove the filter from the support and carefully clean it under running water, using if
necessary a pointed tool to remove possible material of greater dimensions.
If the filter cannot be reused, replace it with a new one.
Reassemble all the parts reversing the order in which you removed the parts. Pay attention on
screwing down the fitting (2) so as to let the draining holes (4) at level of the chamber wall.
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