A.R.I. D-060HFNS EN - Manual (Page 2)

B. Maintening the D060 HF-NS Air valve
. Maintening the Automatic air valve . 1 . C
C.1.1. Shutoff the isolating valve below the air valve
.
C.1.2. Unscrew the body (1)of the Automatic air valve
(No.22
drawing no. 5292-00-02
) from the Base (make sure
that the base will not rotate!).
C.1.3. Remove the Clamping Stem (3)and the float (4)from
the automatiic component and wash the inside
of the body, the Clamping Stem, the float, and
the Rolling Seal (2),with clean water.
C.1.4. Check to make sure that the Rolling Seal is unharmed
(not torn or cracked) and is located precisely in the
middle of its groove in the float.
C.1.5. Reassemble the air valve in the opposite order:
First insert half the lengh of the roaling seal tail
into the track (grrove) in the body, then push
the rest of the way to the end of the groove ,
using the clamp.Make sure that the
roalling seal is set and hold inits place.
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