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Yanmar 3QM30Y User Manual

Yanmar 3QM30Y
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OPERATION MANUAL
2QM20,3QM30(F)(Y)
78-124790-2E
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Yanmar 3QM30Y Specifications

General IconGeneral
Fuel TypeDiesel
Cooling SystemWater-cooled
Rated RPM3000 RPM
Engine TypeFour-stroke, vertical, water-cooled diesel engine
Power Output30 hp (22.4 kW)

Summary

NAME OF PARTS

BEFORE USING THE ENGINE

Fuel

Instructions for using the correct diesel oil and avoiding dirt when refueling.

Lubricating oil

Guidance on selecting oil viscosity and avoiding mixing different oil types.

Running in

Procedures for breaking in a new engine during the first 50 hours of operation.

PREPARATION

Fuel

Steps for preparing the fuel system, including filling the tank and checking injection.

Lubricationg oil

Instructions for checking and maintaining the engine's oil levels.

STARTING

Starting

Steps for starting the engine using a hand-cranking method.

Electrical starting

Procedure for starting the engine using an electric starter motor.

Wiring Diagram

A schematic illustration of the engine's electrical wiring connections.

Warming up

Guidance on idling the engine for a specified period before applying load.

POINTS TO CHECK DURING OPERATION

Fuel

Checking the fuel level and ensuring timely refueling.

Lubricating oil

Verifying the oil pressure warning lamp is off.

Cooling water

Checking the flow of cooling water and the warning lamp.

Charging

Ensuring the battery charging lamp is off.

Exhaust gas

Inspecting exhaust color for signs of overload.

Abnormal sounds

How to respond to unusual engine noises during operation.

STOPPING

AIR VENTING

PERIODICAL CHECK

Fuel oil

Maintenance tasks related to the fuel system at scheduled intervals.

Lub. oil

Maintenance tasks related to the lubrication system at scheduled intervals.

Cooling water

Maintenance tasks related to the cooling water system at scheduled intervals.

Cylinder head

Maintenance tasks related to the cylinder head at scheduled intervals.

Others

Miscellaneous maintenance checks for other engine components.

Fresh water cooled engine cooling system handling instructions

Fresh water tank capacity

Details the capacity of the fresh water tank for the cooling system.

Cooling water (fresh water)

Guidelines for using appropriate cooling water and its properties.

Rust inhibitor

Recommendation to add rust inhibitor when changing cooling water.

Antifreeze

Advice on using permanent type antifreeze for winter protection.

Removing the filler cap

Safety precautions when removing the fresh water tank filler cap.

Cooling water (fresh water) level check

Procedures for checking the fresh water level before operation.

Draining the water

Steps for draining the cooling water from the system.

Idling the engine when stopping

The importance of idling the engine before shutting it down.

Cleaning the heat exchanger pipe

How to clean the heat exchanger pipe to maintain cooling efficiency.

Cooling water leakage check during operation

Importance of checking for fresh water leaks due to engine seizure risk.

Anticorrosion zinc

Information on replacing anticorrosion zinc for preventing corrosion.

Installation and maintenance of clean water sub-tank

Installation of sub-tank

Guidelines for mounting the auxiliary water tank.

Maintenance during use

Procedures for maintaining the sub-tank during engine operation.

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