Furuno CSH-53 - Manual (Page 96)

15-2
Hull Unit Maintenance
HULL UNIT
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.
Raise transducer and coat main
shaft with DAPHAECOROAEX #2
every six months.
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.
Figure 15-2 Hull Unit Maintenance