Yanmar 3HM User Manual download pdf (Page 10)

Piping Diagram

1. Inside Packing

2. Kingston cock cover

3. Outside Packing

4. Direction of vessel movement

5) Seawater strainer

The seawater pump will be damaged if foreign matter is allowed to get into it. Therefore,

attach a seawater strainer between the seawater pump inlet and the seawater cock when the

sea water cock is not already equipped with a strainer.

6) Exhaust pipe layout

Be sure to use the water-lock. Installation of piping should be done as shown in the following

diagram.

6-a)

In case the water outlet of the engine side (A) is above water line.

6-b)

In case the water outlet of the engine side (A) is below water line.

7) Air ventilation and Intake pipe

If the engine is operated at below normal output, incomplete combustion can occur as a result

of an overheated engine room. Therefore, the engine room should be adequately ventilated.

Important

During piping works be sure to cover the intake opening to prevent the entry

of foreign matter.

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Yanmar 3HM User Manual Page 10