ACR Electronics HydroFix 9490 - Manual (Page 13)

Y1-06-0209G 12
5.) Place keyed bracket adapter (D) on the
bottom of the HRU. This part is keyed so
that it will fit together only one way. Turn to
the right until it snaps into place.
6.) Mark the expiry date on the HRU
according to the instructions in Section 3.
7.) Record the expiration date on the HRU
expiration label (K) with an indelible marker.
8.) Push the release spring back against the
bracket aligning the holes on the spring with
the holes in the back of the bracket.
9.) Take the assembled HRU and place the washer end of the HRU
through the larger top hole and slide down
into the smaller slot (see Figure C), locking
the HRU and spring into place.
10.) Carefully release the HRU and make sure it
is securely in place.
11.) Reinstall the beacon with the lanyard facing
toward the back of the bracket.
12.) Put the top cover on the base, maneuvering
the HRU through the rod hole on the
bracket.
13.) Verify the bottom hinge and the top bracket
are securely connected.
14.) Place a cotter pin into the top of the HRU
release rod, locking the top cover in place.
15.) Place HRU expiration label (K) on the
outside of the bracket in a visible location.
Figure C
Figure B