Furuno CSH-7 - Manual (Page 41)

7-2
Hull Unit Maintenance
HULL UNIT
Raise transducer and coat
main shaft with
DAPHAECOROAEX #2
every six months.
Apply MOLYTONE grease
#2 every six months.
Dry dock ship and clean
transducer face yearly.
Apply single coat of
"MARINE STAR 20 Mod
(Red-N)" anti-foulant to
transducer face to keep
marine life off the transducer.
Figure 7-2 Hull unit maintenance
CAUTION
The zinc block near the transducer must
be replaced yearly.
The junction between the transducer and
main shaft may corrode, which can result
in loss of the transducer or water leakage
inside the ship.