Hitachi 3TNV Series, 3TNM74F, 3TNV74F, 3TNV80F Engines EACG-EN-00 (Preview)
Cover
Table of Contents
Introduction
Hitachi Warranties
Hitachi Warranties
Safety
Safety Statements
Safety Precautions
General Service Information
Component Identification
Location of Labels
Engine Nameplate (Typical)
EPA/ARB Emission Control Regulations – USA Only
Emission Control Labels
EPA/CARB labels (Typical)
EPA
EPA and CARB
Engine Family
Function of Major Engine Components
Function of Cooling System Components
Diesel Fuel
Diesel Fuel Specifications
Additional technical fuel requirements
Bio-diesel fuels
Filling the Fuel Tank
Priming the Fuel System
Engine Oil
Engine Oil Specifications
Service categories
Definitions
Additional technical engine oil requirements:
Engine Oil Viscosity
Checking Engine Oil
Adding Engine Oil
Engine Oil Capacity (Typical)
Engine Coolant
Engine Coolant Specifications
Additional technical coolant specifications:
Alternative engine coolant
Filling Radiator with Engine Coolant
Engine Coolant Capacity (Typical)
Specifications
Description of Model Number
Engine General Specifications
Principal Engine Specifications
3TNM74F
Engine Service Information
Tightening Torques for Standard Bolts and Nuts
Abbreviations and Symbols
Abbreviations
Symbols
Unit Conversions
Unit prefixes
Units of length
Units of volume
Units of mass
Units of force
Units of torque
Units of pressure
Units of power
Units of temperature
Periodic Maintenance
Before You Begin Servicing
Introduction
The Importance of Periodic Maintenance
Performing Periodic Maintenance
YANMAR Replacement Parts
Required EPA/ARB Maintenance – USA Only
EPA/ARB Installation Requirements – USA Only
Periodic Maintenance Schedule
Periodic Maintenance Procedures
After Initial 50 Hours of Operation
Replace engine oil and engine oil filter
Check and adjust cooling fan V-belt
Every 50 Hours of Operation
Drain fuel filter/water separator
Check battery
Every 250 Hours of Operation
Drain fuel tank
Replace engine oil and engine oil filter
Check and clean radiator fins
Check and adjust cooling fan V-belt
Check and adjust the governor lever and engine speed control
Clean air cleaner element
Every 500 Hours of Operation
Replace air cleaner element
Replace fuel filter
Clean fuel filter/water separator
Every 1000 Hours of Operation
Drain, flush and refill cooling system with new coolant
Adjust intake/exhaust valve clearance
Every 1500 Hours of Operation
Inspect, clean and test fuel injectors
Inspect crankcase breather system
Every 2000 Hours of Operation
Check and replace fuel hoses and engine coolant hoses
Lap the intake and exhaust valves
Engine
Before You Begin Servicing
Introduction
Cylinder Head Specifications
Adjustment Specifications
Cylinder Head
Push Rod
Valve Spring
Rocker Arm and Shaft
Camshaft and Timing Gear Train Specifications
Camshaft
Idler Gear Shaft and Bushing
Timing Gear Backlash
Crankshaft and Pistons Specifications
Crankshaft
Thrust Bearing
Piston
Connecting Rod
Connecting rod small end
Connecting rod big end
Connecting rod distortion
Tappet
Cylinder Block Specifications
Cylinder Block
Special Torque Chart
Torque for Bolts and Nuts
Special Service Tools
Measuring Instruments
Cylinder Head
Cylinder Head Components
Disassembly of Cylinder Head
Removal of intake manifold/valve cover
Removal of glow plugs
Removal of rocker arm assembly
Disassembly of rocker arm assembly
Removal of cylinder head
Removal of intake/exhaust valves
Removal of valve guides
Cleaning of Cylinder Head Components
Inspection of Cylinder Head Components
Inspection of push rods
Inspection of rocker arm assembly
Inspection of valve guides
Inspection of cylinder head
Inspection of intake and exhaust valves
Inspection of valve springs
Reassembly of Cylinder Head
Reassembly of valve guides
Reassembly of intake and exhaust valves
Reassembly of cylinder head
Reassembly of rocker arm assembly
Reassembly of intake manifold/valve cover
Measuring and Adjusting Valve Clearance
Cylinder Block
Crankshaft and Camshaft Components
3TNV74F, 3TNV80F
3TNM74F
Disassembly of Cylinder Block Components
Disassembly of Camshaft and Timing Components
Removal of timing gear case cover
Checking timing gear backlash
Measuring idler gear-to-crankshaft gear backlash
Measuring idler gear-to-camshaft gear backlash
Removal of timing gears
Removal of oil pan
Removal of oil pan (with ladder frame)
Removal of camshaft
Removal of gear case (3TNV74F, 3TNV80F only)
Disassembly of Crankshaft and Piston Components
Removal of pistons
Removal of crankshaft
Inspection of Crankshaft and Camshaft Components
Replacement of crankshaft oil seals
Crankshaft bearing oil clearance
Inspection of cylinder block
Inspection of pistons, piston rings and wrist pin
Inspection of connecting rod
Inspection of tappets
Inspection of crankshaft
Reconditioning the Crankshaft
Inspection of camshaft
Inspection of camshaft bushing and bores
Inspection of idler gear and shaft
Honing and Boring
Reassembly of Crankshaft and Piston Components
Reassembly of pistons
Installation of crankshaft
Installation of pistons
Reassembly of Camshaft and Timing Components
Installation of gear case (3TNV74F, 3TNV80F)
Installation of camshaft
Installation of timing gears
Installation of gear case cover (3TNM74F)
Installation of oil pan
Final assembly of engine
Fuel System
Before You Begin Servicing
Introduction
Fuel Injection Pump (ML: for 3TNV74F and 3TNV80F, MC: for 3TNM74F)
Stop Solenoid
3TNM74F, 3TNV74F, 3TNV80F
Fuel System Specifications
Special Torque Chart
Test and Adjustment Specifications
Special Service Tools
Measuring Instruments
Fuel System Diagram
Fuel System Components
Fuel Injection Lines
Removal of High-Pressure Fuel Injection Lines
Installation of High-Pressure Fuel Injection Lines
Removal of Fuel Return Line
Installation of Fuel Return Line
Fuel Injection Pump
Removal of Fuel Injection Pump
Installation of Fuel Injection Pump
Checking and Adjusting Fuel Injection Timing
Checking Fuel Injection Timing
Adjusting Fuel Injection Timing
3TNV74F, 3TNV80F
3TNM74F
Fuel Injectors
Removal of Fuel Injectors
Testing of Fuel Injectors
Disassembly and Inspection of Fuel Injectors
Adjusting Fuel Injector Pressure
Reassembly of Fuel Injectors
Installation of the Fuel Injectors
Cooling System
Before You Begin Servicing
Introduction
Cooling System Diagram
Engine Coolant Pump Components
Engine Coolant System Check
Engine Coolant Pump
Disassembly of Engine Coolant Pump
Cleaning and Inspection
Temperature switch
Thermostat
Radiator cap
Reassembly of Engine Coolant Pump
Lubrication System
Before You Begin Servicing
Introduction
Oil Pump Service Information
Engine oil pressure
Outer rotor outside clearance
Outer rotor side clearance
Outer rotor to inner rotor tip clearance
Inner Rotor and Gear Boss Clearance (3TNV74F, 3TNV80F)
Lubrication System Diagram
Checking Engine Oil Pressure
Trochoid Oil Pump (3TNV74F, 3TNV80F)
Oil Pump Components
Disassembly of Oil Pump
Cleaning and Inspection
Check outer rotor outside clearance
Outer rotor to inner rotor tip clearance
Check outer rotor side clearance
Check inner rotor and gear boss clearance
Reassembly of Oil Pump
Trochoid Oil Pump (3TNM74F)
Components
Disassembling the Oil Pump
Cleaning and Inspection
Checking outer rotor outside clearance
Checking outer rotor to inner rotor tip clearance
Checking outer rotor side clearance
Checking rotor shaft clearance
Assembling the Oil Pump
Starter Motor
Before You Begin Servicing
Introduction
Starter Motor Information
Starter Motor Specifications
Starter Motor Troubleshooting
Starter Motor Components
Starter Motor
Removal of Starter Motor
Disassembly of Starter Motor
Cleaning and Inspection
Armature
Field coil
Brush holder
Solenoid switch
Pinion clutch assembly
Reassembly of Starter Motor
Check Pinion Projection Length
No-Load Test
Installation of Starter Motor
Alternator
Before You Begin Servicing
Introduction
Standard and Optional Dynamo Information
Standard and Optional Alternator Information
Alternator Specifications
Dynamo Specifications
Alternator Troubleshooting
Alternator Components
Alternator Wiring Diagram
Alternator Standard Output
Alternator
Removal of Alternator
Disassembly of Alternator
Reassembly of Alternator
Installation of Alternator
Dynamo Component Location
Dynamo Wiring Diagram
Operation of Dynamo
Dynamo Standard Output
Testing of Dynamo
Testing Stator Coil Continuity
Testing Stator Coil Short-to-Ground
Testing Dynamo Regulated Output
Dynamo
Removal of Dynamo
Disassembly of Dynamo
Reassembly of Dynamo
Installation of Dynamo
Electric Wiring
Electric Wiring Precautions
Electric Wire Resistance
Battery Cable Resistance
Electrical Wire Sizes – Voltage Drop
Conversion of AWG to European Standards
Troubleshooting
Special Service Tools
Troubleshooting By Measuring Compression Pressure
Compression Pressure Measurement Method
Engine speed and compression pressure (use for reference)
Quick Reference Table For Troubleshooting
Troubleshooting Charts
SERVICE MANUAL REVISION REQUEST FORM
There are no reviews yet.