14-B
97MU001-F
ANTHEA OPERATION AND INSTALLATION MANUAL
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2.3 SCREWED-TO-HULL-FITTING WITHOUT VALVE TYPE 48.1.RB OR 48.1.RBL
WITH 48.1.RB OR 48.1.RVB SENSOR (Drawing n° C1285/C1301)
Above fittings are in bronze (48 RB) or in aluminum (48 RA) according to the sensor material
(C1287). Those fittings are convenient for hulls not over 30 mm thickness, including hull
reinforcement. Minimum clearance for sensor retraction is 150 mm distance from inside hull.
For thick hulls, a longer hull-fitting has been designed (see drawing C1285 ; 48 RBL hull-
fitting). This hull-fitting concerns only wooden vessels. Maximum thickness of the hull is 110
mm. Minimum clearance for sensor retraction is 410 mm. A threaded cap ref (25) is supplied
with the hull-fitting in order to obstruct the opening when the sensor is removed.
1.
Drill a 64.5 mm diameter hole in the hole for 481 sensors. Remember to flatten external
surface in order to get a perfect bearing of piece (1). Do an external chamfer (about 5 mm -
45° -) for easy mounting and proper positioning.
2.
Position hull-casing (1). Tightness is obtained by a self polymerizing silicone rubber in
order to prevent rotation of the body when unscrewing.
3.
Fill the inner part of outer bush ref (16) with the mastic mentioned above. Be careful to fill
only the part indicated on drawing C1301. Force the bush, check that the bush is properly
engaged and that nothing protrudes. Test the clearance by introducing the sensor preferably
from outside. Let the paste harden.
4.
Put the washer (24) and the nut (23). The nut (23) must be locked by a conventional
mechanical system (refer to the drawing). As to the RBL hull-fitting, it is possible to add a
second nut acting as a lock-nut (see drawing C1285).
5.
Position 0-ring (13) - previously greased - and flat seal (7) and carefully introduce the
sensor.
Take care to not grease the electrode.
Use grease supplied with spares.
When using anti-fouling paint,
DO NOT PAINT THE ELECTRODES.
Attention: Red mark on sensor-head must be directed towards the bow.
6.
Screw sensor nut (8). Do not forget the circlips (15).
DO NOTGREASE THE ELECTRODES
