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Lovol KM/4L22 - User Manual

Lovol KM/4L22
155 pages
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KM/4L22 Diesel Engines
MAINTENANCE MANUAL
THE PEOPLE’S REPUBLIC OF CHINA
LOVOL HEAVY INDUSTRY CO., LTD

Table of Contents

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Summary

Part I Overview

Chapter 1 Safety Precautions

Covers safety warnings and symbols for engine operation and maintenance.

Chapter 2 Technical Parameters

Details technical specifications like bore, stroke, power, torque, and dimensions.

Chapter 3 Fuel and Engine Oil

Provides guidance on fuel types, storage, and engine oil selection and use.

Chapter 4 Position of Product Nameplate

Identifies the location of various component nameplates for easy reference.

Chapter 5 Product Features and Accessories

Lists standard and optional features and accessories included with the engine.

Part II Dismantlement, Installation and Adjustment

Chapter 1 Dismantling;installing the valve mechanism

Step-by-step procedures for disassembling and assembling the engine's valve train.

Chapter 2 Dismantling;installing the crank-link mechanism

Detailed instructions for removing and refitting the crankshaft, connecting rods, and pistons.

Chapter 3 Cooling system

Procedures for dismantling and assembling cooling system components like water pump and thermostat.

Chapter 4 Lubricating System

Maintenance procedures for the engine's oil pump and oil pan.

Chapter 5 Electric system

Covers maintenance and troubleshooting for the starter and alternator systems.

Chapter 6 Fuel supply system

Steps for dismantling and installing fuel system components like filters and pumps.

Chapter 7 Dismantling;installing and adjusting the accessories

Information on gears and their related data for dismantling and installation.

Part III Inspection, Adjustment, Fault Diagnosis and Troubleshooting

Chapter 1 Dynamic Inspection

Outlines general inspection procedures for engine operation and oil consumption.

Chapter 2 Operating principle

Explains the fundamental working principles of the valve and crank-link mechanisms.

Chapter 3 Inspection and adjustment

Details procedures for inspecting and adjusting valve clearance, cylinder pressure, and oil pressure.

Chapter 4 Fault analysis and troubleshooting

Lists common engine faults, their causes, and troubleshooting steps.

Lovol KM/4L22 Specifications

General IconGeneral
Engine ModelKM/4L22
Cylinders4
CoolingWater-cooled
Displacement2.156 L
Fuel TypeDiesel
AspirationNaturally Aspirated
Bore x Stroke85 mm x 95 mm
Compression Ratio18:1
Starting SystemElectric Start
Lubrication SystemForced Lubrication
Weight230 kg
Rated Speed2400 rpm

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