G.INSTALLING GAS FITTINGS AND WATER FITTINGSAPPENDIX B-70315EN/02
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G.2 WATER FITTINGS
G.2.1 Tightening a Fittings
(1) Cut the end face of the tube at right angles, then install a box nut
and sleeve on the tube as shown below. At this time, pay
attention to their directions.
(2) Insert the tube through the fittings all the way through, then
tighten the box nut until you feel a resistance with fingers. Next,
tighten the nut further by one and a half turns with a wrench.
Method of installing a water tube
(3) After the work above, mark the box nut and the main fittings as
shown in the figure.
G.2.2 Reinstalling a Fittings
(1) Before removing the tube, provide marks so that the positions of
the box nut and the main fittings can be identified.
(2) Remove the tube.
(3) When installing the tube, ensure that the mark on the box nut of
the fittings matches the position marked in step (1).
(4) If the same marked position is reached just by gently turning the
box nut by fingers, cut the tube area where the old sleeve was
installed, then install a new sleeve according to the procedure
described in Subsection G.2.1.