Furuno CSH-53 manual Hull Unit Maintenance, Zinc block near the transducer must be replaced yearly

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.

Apply MOLYTONE grease #2 every six months.

Raise transducer and coat main shaft with DAPHAECOROAEX #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
HULL UNIT	transducer face to keep
	marine life off the transducer.

Figure 15-2 Hull Unit Maintenance

15-2