NSK PRESTO AQUA LUX Manuel Technique page 11

8. Maintenance
(1) Draining the filter
Check the filter bowl from the filter inspection window to
see if there is an accumulation of water. If there is water
in the filter insert drain by turning the drain cock in the
direction of the arrow as shown in Fig. 23. After draining,
securely tighten the drain cock.
( 2 ) Changing O-ring
Remove the two O-rings at the Bottle Joint with a pointed
tool and insert new O-rings into the grooves. ( Fig. 24 ) .
* Optional O-ring : Order No.Y900327
( 3 ) Changing Water Filter
1 ) Turn off the water supply to which PRESTO AQUA LUX
is connected. Use two ( 5x8 ) spanners as shown in
Fig.25 and turn in the direction as shown. Should the
water tube becomes twisted as a result of this, relieve
the twisting by releasing the spanners and make sure
he tube between the water filter and the unit is
straight.
2 ) When the Water Filter Case is apart the water filter can
be removed as shown in Fig.26. Replace with a new
water filter and reassemble the filter in the reverse
order.
* Water Filter : Order Code U387042
CAUTION
Assemble the Water Fillter in the correct
direction as shown in Fig.26.
( Use of Water Supply Bottle )
( Use of Tap Water )
Bottle Joint Bottle Joint
O-Ring O-Ring
Water Filter Case Water Filter Case
O-Ring O-Ring
Control Unit side Control Unit side
10
Drain cock Drain cock
Water Filter Water Filter
Fig. 23
Fig. 24
Fig. 25
Fig. 26