Yanmar BY series Spezifikationen PDF herunterladen (Seite 37)

PRODUCT OVERVIEW

30 BY Series Operation Manual

Coolant Recovery

Tank

The coolant fill cap valve releases vapor and hot water overflow

to the coolant recovery tank. When the engine stops and the

coolant cools, the pressure in the heat exchanger drops. The fill

cap valve then opens to send coolant back from the coolant

recovery tank. This minimizes coolant consumption. The closed

cooling system coolant level can easily be checked and refilled in

this tank.

Oil Cooler - Engine A heat exchanger that cools high temperature engine oil using

engine coolant.

Oil Cooler - Hydraulic A heat exchanger that cools the marine gear oil or power steering

fluid using seawater.

Turbocharger The turbocharger pressurizes the air coming into the engine. It is

Air Filter The air filter removes dirt from the intake combustion air reducing

engine wear.

Nameplates Nameplates are provided on the engine and the marine gear and

have the model, serial number and other data.

Electrical Panel

(E-Box)

The electrical panel houses the engine electrical system fuses,

relays, and ECU.

The ECU monitors data from the various sensors and controls

such functions as low-pressure fuel pump operation, fuel

injection pressure, fuel injection system volume, and the timing

and volume of fuel injected by the Bosch electronic fuel injectors.

Throttle control is fly-by-wire meaning it is controlled by electric

signals from the helm. The throttle control is either analog or

digital depending on the level of control options installed.

The ECU also uses sensor inputs to monitor engine condition

and will set a trouble code if a system or sensor indicates a

problem. In most cases, a Check Engine light will be displayed.

The engine may or may not run normally depending on the fault.

Not all inputs are monitored by the ECU. Low oil pressure and

water in fuel are two examples. Either of these conditions will

result in a warning indicator and possible audible alarm. Low oil

pressure will also be indicated by the oil gauge at the helm.

Electrical Panel

(E-Box) Circuit

Breaker (80 A)

The electrical panel circuit breaker is installed in the positive (+)

cable of the electrical panel power lead, and provides overload

protection for the electrical panel. The electrical panel power

leads must be connected directly to the battery, and must have

an 80 A breaker installed in the B+ (red) lead.

Name of

Component

Function

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