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Universal M3-20A User Manual

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OPERATORS
MANUAL
Unlvarsal
MARINE
DIESEL
ENGINES
M3·20A
M3·20B
M·25XPA
M·25XPB
M·35A
M·35B
PUBUCATION 200494
1
ST
EDITION I
APRIL
1997
I~
WESTERBEKE CORPORATION· AV
ON
INDUSTRIAL PARK
AVON,
MA
02322 TEL: (508) 588
-n
oo FAX: (508) 559-
93
23
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MMA
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~
mMr
N
aJ;
olllll
Marin
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Manuf
octurrrs Association
---

Table of Contents

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Universal M3-20A Specifications

General IconGeneral
BrandUniversal
ModelM3-20A
CategoryEngine
LanguageEnglish

Summary

Introduction

Warranty and Identification

Details on warranty registration and serial number usage for identification.

Product Information and Safety

Covers product software disclaimers and essential safety notes, cautions, and warnings.

Engine Details and Parts

Explains serial numbers, engine basics, parts ordering, and spares.

Investment Protection

Outlines key steps for ensuring long engine life and proper care.

Admiral Control Panel

Panel Description and Function

Describes the Admiral panel gauges, buttons, and key switch functions.

Alarm System Operation

Explains the automatic alarm system for high temperature and low oil pressure.

Captain Control Panel

Panel Description and Function

Details the Captain panel layout, gauges, buttons, indicator lamps, and alarm buzzer.

Diesel Fuel, Engine Oil and Engine Coolant

Fuel Specifications and Care

Covers diesel fuel requirements, handling, and fuel supply maintenance.

Engine Oil and Coolant

Details engine oil types, viscosity, coolant mixture, and recovery tank usage.

Preparations for Initial Start-Up

Prestart Inspection Checklist

Lists essential checks before the first engine start or after a long layoff.

Starting/Stopping Procedure

Engine Starting and Stopping

Provides step-by-step instructions for starting, cold starts, and stopping the engine.

Break-In Procedure

Initial 50-Hour Break-In

Guidelines for the first 50 hours of engine operation to ensure longevity.

The Daily Routine

Daily Checklist and Startup

Daily pre-start checks and the procedure for starting the engine.

Maintenance Schedule

Engine Cooling Circuit

Circuit Description and Refilling

Explains the cooling system and how to refill it with coolant.

Thermostat and Raw Water Systems

Details thermostat, raw water pump, heat exchanger, and zinc anode maintenance.

Water Heater Connections

Instructions for plumbing an onboard water heater to the engine coolant system.

Engine Oil Change

Oil Change Procedures

Step-by-step guide for draining, replacing the oil filter, and refilling the engine oil.

Remote Oil Filter

Installation Guide

Instructions for installing a remote oil filter accessory.

Fuel System

Filtration and Separation

Covers fuel filters and the importance of fuel water separators.

Additives, Spares and Priming

Details fuel additives, essential spares, and bleeding the fuel system.

Air Cleaner and Silencer

Explains the function and maintenance of the air cleaner.

DC Electrical System

System Overview and Troubleshooting

Overview of the charging system and troubleshooting common electrical issues.

Circuit Maintenance and Components

Covers the 12V DC control circuit, drive belts, battery care, and glow plugs.

Wiring Diagrams

Provides wiring diagrams for the electrical system.

Engine Adjustments

Throttle and Valve Adjustments

Instructions for adjusting the throttle assembly and valve clearances.

HBW Transmission

Initial Operation and Control

Covers initial setup, operation, locking the prop, and control cables for the transmission.

Fluids and Maintenance

Details transmission fluid type, capacity, changes, linkage checks, shaft alignment, and lay-up.

Universal Marine Engines Specifications

Engine Model Specifications

Provides detailed specifications for various engine models.

Universal Engines Parts Identification

Typical Engine View

Illustrates and labels major engine components for identification.

Metric Conversions

Unit Conversion Tables

Tables for converting between metric and imperial units.

Standard Hardware Torques

Fastener Torque Values

Lists recommended torque values for standard hardware.

Universal Spare Parts

Recommended Spare Parts and Kits

Lists essential spare parts and available spare parts kits.

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