ANATEL A643, Operator'S Manual, Page: 171 / 222

Anatel A643a - Anatel A643a Maintenance 171 of 220
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Operator Manual
4) Unscrew the nut from the inlet (threaded) end of the Filter and remove the ferrule and
collar that are held inside the nut (see Note).
Note:
If the nut, ferrule and collar are not found as described in step 4 , then step 4 through step 7
have already been performed at Anatel. In this case, the Inlet Filter appears as shown. Skip to
step 8 .
5) Slide the nut on the outlet end of the Filter with the threads facing out.
6) Slide the collar on the outlet end of the Filter so that it fits inside the nut. The flat edge
of the collar should face down inside the nut.
Fig 13-20 : Inline Filter Assembly
Fig 13-21 : Collar Position