A. Posner
21/02/94

FCO 18515 -
502F35517 Dolev 800/800P Main Frame

Description

This FCO should be implemented only in cases of noise from the vacuum pump valve or in case of vacuum leakage from the valves.

1. Reason for Change

                   Implementation of this FCO will solve problems of noise from the vacuum valve and leakages.

2. Description of Change

                    Replace the old valve with a new and improved one.

3. Change Procedure

                 3.1     Switch off the power to the machine via the main switch.    
3.2     Open the lower back panel after pulling out the main power cord and the four screws that hold the back
          panel to the main frame.
3.3     Release the two clamps that hold the black flexible hoses to the straight adaptor on the valve (do not
          attempt to open the straight valve from its thread). Do it for both valves.
3.4     Disconnect the connector of the fit which contains the wiring.
3.5     Open the nut 3/8" which holds the vacuum valve to the main frame.
3.6     Pull out the flexible hose which connects the vacuum detector to the valve.
3.7     Remove the old valves.
3.8     The new valve holding it is different. Insert the new valve in itsplace and secure it with the supplied screw,
          spring washer and nut.
3.9    Connect the flexible hose from the vacuum detector (the detector itself is not installed).
3.10  Connect the mini fit connector which connects the wiring to the valve
3.11  Connect the flexible hoses to the valves and tighten the clamps.

4. Test Procedure
                       4.1     Activate the pump several times and check for good and smooth operation.
4.2     Put the film in full format on the drum.
         Activate the vacuum for 15 minutes and check that the vacuum pump is functioning well and the film is held
         in its place.

5. Parts List
                    
The kit for implementing this FCO consists of:
                                   
509C38898    VACUUM VALVE WIRING ASSY TYPE II x 2   

6. Attached Documentation
                   
None.

7. Material Disposition
                   
The replaced valve can be disposed.

8. Logistics
                       
Parts for implementing this FCO will be available as of July 1st and will be shipped according to orders from each subsidiary.