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Yanmar 6CH-WUTE User Manual

Yanmar 6CH-WUTE
62 pages
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Yanmar 6CH-WUTE Specifications

General IconGeneral
BrandYanmar
Model6CH-WUTE
CategoryEngine
LanguageEnglish

Summary

FOR YOUR SAFETY

Warning Symbol and Safety Levels

Explains the safety alert symbol and warning levels (DANGER, WARNING, CAUTION, NOTICE).

General Safety Precautions

Covers operation safety like burns from steam, ventilation, fire prevention, exhaust gas, and moving parts.

Maintenance Safety Precautions

Details safety measures during maintenance, including steam, battery fluid, and oil ignition hazards.

Specific Safety Warnings

Includes warnings about electrical short-circuits, modifications, and reiterates moving parts and exhaust gas safety.

Regulatory and Environmental Safety

Covers regulations on NOx and guidelines for waste disposal.

Warning labels

Engine nameplates

Location of engine nameplate

Specifies the location of the engine nameplate on the cylinder block's side cover.

Location of marine gear nameplate

Specifies the location of the marine gear nameplate on the head cover of the marine gear box.

SPECIFICATIONS

Location of components

Identifies engine components on the operation and non-operation sides.

FUEL OIL, LUBRICATING OIL & COOLING WATER

Fuel

Details specifications for fuel oil quality criteria and usage notes.

Lubricating Oil

Covers engine oil and marine gear oil selection criteria and precautions.

Engine oil selection

Provides guidelines and classifications for selecting engine oil.

Marine gear oil selection

Provides guidelines and classifications for selecting marine gear oil.

Cooling water (Coolant)

Details water quality requirements and Long Life Coolant (LLC) selection.

Cooling water selection

Specifies water quality requirements for the cooling system.

Long life coolant (LLC) mixture selection

Recommends specific LLC products and precautions for use.

RUNNING-IN

Fuel

Details procedures for filling the fuel tank and fuel piping setup.

Lubricating oil (Engine and Marine gear)

Explains how to check and add engine and marine gear oil levels.

Cooling system (seawater and coolant)

Details the procedure for filling the coolant tank and reservoir tank.

Instruments check before starting

Covers checks of gauges, lamps, and alarms before engine start.

Alarm devices

Lists and describes various engine alarm devices and their indicators.

Rechecking after starting

Outlines checks to perform after the engine has been started for the first time.

OPERATION

Starting

Details the procedure for starting the engine, including pre-start checks and the starting sequence.

Before starting engine

Lists checks for alarm devices before starting the engine.

Checking just after starting engine

Lists checks for alarm devices immediately after starting the engine.

Normal function of alarm devices

Provides a table showing the normal operation of buzzers and alarm lamps before and after starting.

Cautions after starting

Lists important checks and conditions to observe immediately after starting the engine.

Cautions during running with load

Advises on checks and precautions during engine operation under load.

Cooling water (seawater)

Advises checking seawater outlet flow and troubleshooting intermittent or low flow.

Coolant

Details normal and high coolant temperatures and troubleshooting steps for overheating.

Exhaust gas color

Explains black smoke as a sign of overload and advises consulting a dealer.

Operational condition checks

Recommends checking for leaks, loose fasteners, and abnormal noise/vibration.

Operation of shift handle

Advises proper operation of the throttle and shift handles to prevent marine gear damage.

Alarm devices

Explains how to respond to alarm devices during engine running and when to stop the engine.

Long time operation at low speed

Describes a procedure for discharging residue from cylinders after prolonged low-speed operation.

Stopping

Details the procedure for safely stopping the engine, including after-run and shutdown steps.

Long-term storage

Provides guidelines for preparing the engine for long-term storage.

Operating after long-term storage

Outlines procedures for restarting an engine after a long storage period.

CHECKING AND SERVICING THE TURBOCHARGER

Wash the pre-filter

Details the procedure for cleaning the turbocharger pre-filter to maintain engine output.

Wash the blower

Details the procedure for cleaning the turbocharger blower to restore performance.

PERIODICAL MAINTENANCE

Periodic maintenance schedule

Provides a comprehensive schedule for routine maintenance tasks based on operating hours.

Valve clearance adjustment

Details the procedure and service intervals for adjusting valve clearance.

Valve bridge parallel adjustment

Details the procedure for adjusting valve bridge parallelism for intake and exhaust valves.

Valve clearance adjustment

Provides the specific clearance values and service intervals for valve adjustment.

Fuel system

Outlines maintenance tasks for the fuel system, including checks and replacements.

Fuel level check

Outlines the daily check for fuel level and refilling procedure.

Fuel tank deposit draining

Details the daily procedure for draining sediment and water from the fuel tank.

Fuel filter element replacement

Specifies the procedure and service interval for replacing the fuel filter element.

Fuel-water separator cleaning

Details the procedure and service interval for cleaning the fuel-water separator.

Fuel-water separator draining

Outlines the daily procedure for draining water from the fuel-water separator.

Lubricating system

Outlines maintenance tasks for the lubricating system, including oil checks and changes.

Oil level checking (Engine and Marine gear)

Explains how to check oil levels in the engine and marine gear using the dipstick.

Engine oil filter replacement

Details the procedure and service intervals for replacing the engine oil filter.

Engine oil change

Outlines the procedure and service intervals for changing engine oil.

Engine Lubricating Oil Bypass Filter Cleaning

Details the procedure for cleaning the engine oil bypass filter.

Marine Gear Oil Change and Strainer Cleaning

Outlines the procedures for changing marine gear oil and cleaning the oil strainer.

Cooling system (seawater and coolant)

Covers maintenance of the cooling system, including seawater and coolant circuits.

Seawater system

Details maintenance of the seawater cooling system, including discharge and anodes.

Discharging seawater

Advises checking seawater outlet flow during operation and troubleshooting.

Checking and replacement of zinc anodes

Explains how to check and replace zinc anodes in various cooling system components.

Seawater Pump Impeller and Casing Check/Replacement

Details inspection and replacement of the seawater pump impeller and casing.

Seawater system cleaning

Advises cleaning the seawater system, especially coolers, to maintain cooling efficiency.

Coolant system

Outlines maintenance tasks for the coolant system, including level checks and cleaning.

Coolant level checking

Explains how to check coolant levels in the coolant tank and reservoir tank.

Water pump leakage checking

Advises checking for coolant leaks from the water pump and potential consequences.

Coolant system cleaning

Explains the need for periodic cleaning of the coolant system and thermostats.

Coolant change

Specifies the service interval for changing the coolant and necessary precautions.

Turbocharger

Covers checking turbocharger components and connections.

Clearing of prefilter and turbocharger

Refers to the section on checking and servicing the turbocharger.

Checking each joint area

Advises checking turbocharger connections for damage or leaks.

Charge air cooler

Details maintenance of the charge air cooler, including anode checks and drainage.

Checking and replacement of zinc anodes

Refers to checking and replacing zinc anodes in the cooling system.

Drainage (air intake manifold)

Details the procedure for draining condensed water from the air intake manifold.

Injection Nozzle Replacement

States that injection nozzles should be replaced with new ones at specified intervals.

Remote control cables

Covers adjustment and checks for remote control cables.

Throttle handle

Explains how to adjust the throttle handle and governor lever connection.

Shift handle

Explains how to check and adjust the shift handle and marine gear control lever connection.

Electrical parts

Details checks and maintenance for electrical components.

Checking warning lamps and devices

Refers to alarm devices for checking warning lamps.

Battery electrolyte level

Details checking and maintaining the battery electrolyte level.

Alternator drive belt tension

Explains how to check and adjust the alternator drive belt tension.

YANMAR Standard motor-driven bilge pump (option)

Provides information on the features, fitting, and use of the optional bilge pump.

Features

Lists features of the bilge pump, highlighting its material resistance and protective device.

Method of fitting and use

Details wiring, installation, and usage of the bilge pump.

TROUBLESHOOTING & COUNTERMEASURES

Starting failure

Lists common causes and countermeasures for engine starting failures.

Rotational speed dropped spontaneously

Lists common causes and countermeasures for spontaneous engine speed drops.

Output of each cylinder not in uniformity

Lists causes and countermeasures for uneven cylinder output.

Bad color of exhaust gas

Lists causes and countermeasures for abnormal exhaust gas colors.

Lub. oil pressure dropped below the specified pressure

Lists causes and countermeasures for low lubricating oil pressure.

Unusual sounds heard (knocking occurred) during operation

Lists causes and countermeasures for unusual engine sounds like knocking.

Coolant temperature too high

Lists causes and countermeasures for high coolant temperatures.

Exhaust temperatures of all the cylinders too high

Lists causes and countermeasures for high exhaust temperatures.

Engine stopped suddenly

Lists causes and countermeasures for sudden engine stops.

Handling of emergency bolts for marine gear trouble

Details the procedure for using emergency bolts for marine gear issues to return to port.

WIRING DIAGRAMS

24V engine negative ground type

Presents the wiring diagram for the 24V negative ground type engine.

24V insulated ground connection type (option)

Presents the wiring diagram for the optional 24V insulated ground connection type.

RECORD OF OWNERSHIP

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