Simrad SP270 Manual de Instalação descarregar pdf (Página 53)

Installation procedures

851-160572 / B

Installation of the hull unit

Warning Do not remove the protecting cover from the

transducer until just before the Hull Unit is to be

lowered into the trunk.

Mounting the hull unit

The Hull Unit should normally be oriented with the

hoisting/lowering motor pointing aft (see figure 6). If this

orientation makes the motor control unit on the Hull Unit

difficult to access, the Hull Unit may be oriented in the most

suitable position.

BOW

(CD1905 WMF/GIF)

Figure 6 Recommended orientation of the hull unit

1 Use a tackle to lower the Hull Unit with the protections

down into the sonar room. Remove the blind cover from

the trunk, and check that the gasket is not damaged. Store

the blind cover in the sonar room for possible future use.

2 Remove the transport-protection from the transducer and

lower the Hull Unit carefully down into the trunk. Tighten

the flange nuts with a torque of approximately 6 kpm.

The transducer cables and connectors must be kept dry and

handled with care to avoid mechanical damage.

Air bleeding

To avoid damage of the transducer by transmitting in air inside

the trunk, a pipe with a minimum inside diameter of 10 mm

must be fitted to the air bleeding cock, and run with continuous

rise to free air above deck or out through the ship s side. Make

sure that the air bleeding cock is opened (see figure 7).

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Simrad SP270 Manual de Instalação Página 53