John Deere 6081HFN01, HFN02, HFN03 8.1 L, 6081 Operator’s Manual PDF

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John Deere 6081HFN01, HFN02, HFN03 8.1 L, 6081 Compressed Natural Gas Engines Operator’s Manual – PDF DOWNLOAD

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John Deere 6081HFN01, HFN02, HFN03 8.1 L, 6081 Compressed Natural Gas Engines Operator’s Manual – PDF DOWNLOAD

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TABLE OF CONTENTS:

John Deere 6081HFN01, HFN02, HFN03 8.1 L, 6081 Compressed Natural Gas Engines Operator’s Manual – PDF DOWNLOAD

Contents 5
Identification Numbers 7
Engine Identification Tags 7
Engine Option Codes 10
Safety 12
Handle Compressed Natural Gas Safely 12
Recognize Safety Information 12
Understand Signal Words 13
Follow Safety Instructions 13
Replace Safety Signs 13
Prevent Machine Runaway 14
Handle Fuel Safely—Avoid Fires 14
Prepare for Emergencies 14
Handle Starting Fluid Safely 15
Handle Fluids Safely—Avoid Fires 15
Service Machines Safely 15
Wear Protective Clothing 16
Protect Against Noise 16
Handle Chemical Products Safely 16
Stay Clear of Rotating Drivelines 17
Practice Safe Maintenance 17
Work In Ventilated Area 18
Avoid High-Pressure Fluids 18
Avoid Heating Near Pressurized Fluid Lines 18
Do Not Open High-Pressure Fuel System 19
Remove Paint Before Welding or Heating 19
Service Cooling System Safely 19
Install All Guards 20
Avoid Hot Exhaust 20
Avoid Harmful Asbestos Dust 20
Prevent Battery Explosions 21
Work in Clean Area 21
Illuminate Work Area Safely 21
Handling Batteries Safely 22
Protect Against High Pressure Spray 22
Use Proper Lifting Equipment 23
Use Proper Tools 23
Decommissioning — Proper Recycling and Disposal of Fluids and Components 24
Precautions for Welding 25
Fuels, Lubricants, and Coolants 26
Natural Gas Recommendations 26
Engine Break-In Oil 26
Natural Gas Engine Oil 26
OILSCANOILSCAN is a registered trademark of Deere & Company ® and CoolScanCoolScan is a registered trademark of Deere & Company® 27
Cold Weather Operation 27
Alternative and Synthetic Lubricants 28
Lubricant Storage 28
Mixing of Lubricants 28
Multipurpose Extreme Pressure (EP) Grease 28
Recommended Engine Coolant 29
Engine Coolant Specifications 30
Testing Engine Coolant 31
Supplemental Coolant Additives 32
Operating in Warm Temperature Climates 32
Disposing of Coolant 32
Operating the Engine 33
Engine Break-In 33
Starting the Engine 34
Warming the Engine 35
Changing Engine Speed 35
Idling the Engine 35
Stopping the Engine 35
Using a Booster Battery or Charger 36
Lubrication and Maintenance 37
Observe Service Intervals 37
Use Correct Fuels, Lubricants, and Coolants 37
Lubrication and Maintenance Service Interval Chart 38
Lubrication and Maintenance—Daily 39
Daily Lubrication and Maintenance 39
Lubrication & Maint /12 Months/25,000 Miles 41
Lubrication and Maintenance—12 Months/25,000 Miles 41
Changing Engine Oil and Filter 41
Servicing Battery 43
Checking Belt Tensioner 44
Visually Inspecting Water Pump 45
Inspecting Natural Gas Filter Element (Early Engines with Box-Type Regulator) 45
Checking Air Intake System 46
Checking Cooling System 47
Checking Effectiveness of Coolant Solution 47
Replenishing Supplemental Coolant Additives (SCAs) Between Coolant Changes 48
Cleaning and Adjusting Spark Plug Gap 49
Lubrication & Maint /24 Months/50,000 Miles 51
Lubrication and Maintenance—24 Months/50,000 Miles 51
Cleaning Crankcase Vent Tube 51
Replacing Natural Gas Filter Element (Early Engines with Box-Type Regulator) 51
Checking Crankshaft Vibration Damper 52
Inspecting Natural Gas Lines 53
Pressure Testing Cooling System 54
Flushing Cooling System 55
Replacing Spark Plugs 57
Inspecting Air Compressor 59
Checking and Adjusting Valve Clearance 60
Service as Required 62
Additional Service Information 62
Replacing Belts 62
Replacing Air Cleaner Elements 63
Adding Coolant 63
Precautions for Welding on Vehicles Equipped with Electronic Engine Control Unit (ECU) 64
Retorque Exhaust Manifold and Intake Manifold 64
Troubleshooting 65
Diagnostic Overview 65
Reading Diagnostic Trouble Codes 65
Diagnostic Trouble Codes 67
Storage 69
Storing the Engine 69
Removing Engine from Storage 70
Specifications 71
Engine Specifications 71
Lubrication and Maintenance Records 73
Using Lubrication and Maintenance Records 73
Daily (Prestarting) Service 73
12 Months/12,500 Miles Service 73
12 Months/25,000 Miles Service 73
24 Months/50,000 Miles Service 74
Service as Required 74
Emissions System Warranty 75
Emissions System Label 75
U S Emissions Control Warranty Statement 75
California Emission Control Warranty Statement (California Only) 76
John Deere Service Literature Available 78
Technical Information 78
Parts Catalog 78
Operator’s Manual 78
Fundamentals of Service Manuals 78
Other Publications for This Engine 79
Page Number 5
Section 01 7
Section 05 12
Section 10 26
Section 15 33
Section 20 37
Section 25 39
Section 30 41
Section 35 51
Section 55 62
Section 60 65
Section 65 69
Section 70 71
Section 75 73
Section 80 75
Section 85 78

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