John Deere 2720 Compact Utility Tractor Technical Manual TM103719

[Martin Welker]

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John Deere 2720 Compact Utility Tractor Technical Manual TM103719
Size: 35.06 MB
Format: PDF
Language: English
Brand: John Deere
Type of Machine:Compact Utility Tractor
Type of Manual: Technical Manual
Model: John Deere 2720 Compact Utility Tractor
Part Number: TM103719
Publication Date: 2011
Number of Pages: 1307 Pages

Contents:
FOREWORD
Section 10 - SAFETY
Group 05 - Safety
Recognize Safety Information
Understand Signal Words
Replace Safety Signs
Handle Fluids Safely—Avoid Fires
Prepare for Emergencies
Prevent Battery Explosions
Prevent Acid Burns
Wear Protective Clothing
Avoid High-Pressure Fluids
Avoid Heating Near Pressurized Fluid Lines
Service Machines Safely
Use Proper Tools
Park Machine Safely
Support Machine Properly
Use Proper Lifting Equipment
Work in Clean Area
Protect Against High Pressure Spray
Illuminate Work Area Safely
Work In Ventilated Area
Remove Paint Before Welding or Heating
Avoid Harmful Asbestos Dust
Service Tires Safely
Stay Clear of Rotating Drivelines
Service Cooling System Safely
Dispose of Waste Properly
Handle Chemical Products Safely
Live With Safety
Section 20 - SPECIFICATIONS AND INFORMATION
Group 05 - General Specifications
Metric Bolt and Screw Torque Values
Unified Inch Bolt and Screw Torque Values
Metric Cap Screw Torque Values—Grade 7
Gasket Sealant Application
Service Recommendations For Flat Face O-Ring Seal Fittings
Service Recommendations for O-Ring Boss Fittings
Group 10 - Fuel and Lubricants
Diesel Fuel
Handling and Storing Diesel Fuel
Diesel Engine Oil
Diesel Engine Break-In Oil
Alternative and Synthetic Lubricants
Lubricant Storage
Mixing of Lubricants
Grease
Transmission and Hydraulic Oil
Heavy Duty Diesel Engine Coolant
Group 15 - Serial Number Locations
Machine Product Identification Number
Engine Serial Number
Section 30 - ENGINE—DIESEL
Group 05 - Specifications
General Specifications
Repair Specifications
Tests and Adjustment Specifications
Operational Tests
Torque Values, Non-Standard Fasteners
Service Equipment and Tools
Other Material
Group 10 - Theory of Operation
Fuel System Operation
Cooling System Operation
Air Intake System
Lubrication System Operation
Group 15 - Component Location
Fuel System Component Location
Group 20 - Diagnostics
Engine Troubleshooting
Engine Oil Diagnostics
Excessive Fuel Consumption
Incorrect Manifold Pressure
Low Engine Compression
Engine Starting Problem
Engine Operation Poor
Engine Oil Pressure Low
Coolant Temperature Abnormal
Coolant in Oil or Oil in Coolant
Diagnostic Table
Check for Head Gasket Failures
Group 25 - Tests and Adjustments
Fan and Alternator Drive Belt Adjustment
Throttle Cable Adjustment
Slow Idle Adjustment
Thermostat Opening Test
Cylinder Compression Test
Valve Clearance Adjustment
Valve Lift Check
Radiator Bubble Test
Thermostat Opening Test
Radiator Pressure Cap Test
Cooling System Pressure Test
Engine Oil Pressure Test
Fuel System Leakage Test
Bleed Fuel System
Fuel Supply Pump Pressure Test
Injection Pump Timing
Fuel Injection Nozzle Test
Crankshaft End Play Check
Timing Gear Backlash Check
Camshaft End Play Check
Connecting Rod Side Play Check
Connecting Rod Bearing Clearance Check
Crankshaft Main Bearing Clearance Check
Group 30 - Repair
Thermostat Removal and Installation
Glow Plug Removal and Installation
Water Pump Removal and Installation
Fuel Filter and Water Separator
Secondary Fuel Filter
Fuel Injection Pump
Fuel Injection Nozzles
Intake Manifold
Muffler Removal and Installation
Exhaust Manifold
Starting Motor Removal and Installation
Rocker Cover Removal and Installation
Engine Removal and Installation
Engine Removal From Tunnel (Front Subframe Removed)
Engine and Subframe Removal From Tunnel Section (Front Split)
Rocker Arm Assembly
Cylinder Head and Valves Removal and Installation
Cylinder Head and Valves Disassembly and Assembly
Valve Seats
Valve Recession
Valve Guides
Valve Springs
Grind Valve Seats
Lap Valves
Measure Piston-To-Cylinder Head Clearance
Piston and Connecting Rod
Piston Inspection
Cylinder Bore
Crankshaft Front Oil Seal
Crankshaft Rear Oil Seal
Crankshaft and Main Bearings
Camshaft
Camshaft Followers
Timing Gear Cover
Idler Gear
Timing Gear Cover Mounting Plate
Oil Pan and Strainer
Oil Pump
Section 40 - ELECTRICAL
Group 05 - General Information
Reading Electrical Schematics
Theory Of Operation Information
Diagnostic Information
Wire Color Abbreviation Chart
Common Circuit Tests
Conductors For 12 Volt Circuits
Group 10 - Specifications
System Specifications
Service Equipment and Tools
Other Material
Group 15 - Component Location
Electrical Component Location
Group 20 - System Schematics
Schematic and Wiring Harness Legend
Electrical Schematic
W1 Main Wiring Harness
W2 Power Supply Wiring Harness
W3 Battery Cable Wiring Harness
W4 Engine Wiring Harness
Y2 Fuel Shutoff Solenoid
W1 Main Wiring Harness Color Codes
W2 Power Supply Wiring Harness Color Codes
W3 Battery Cable Wiring Harness Color Codes
Group 25 - Diagnostics & Operation
Power Circuit Operation
Power Circuit Electrical Schematic
Power Circuit Diagnosis
Cranking Circuit Operation
Cranking Circuit Electrical Schematic
Cranking Circuit Diagnosis
Engine Glow Plug Circuit Operation
Engine Glow Plug Circuit Electrical Schematic
Engine Glow Plug Circuit Diagnosis
Fuel Supply Operation
Fuel Supply Electrical Schematic (Pull In—On Seat, PTO On)
Fuel Supply Electrical Schematic (Hold In—Off Seat, PTO Off)
Fuel Supply Diagnosis
Engine Shutoff Circuit Operation
Engine Shutoff Electrical Schematic
Engine Shutoff Circuit Diagnosis
Charging Circuit Operation
Charging Circuit Electrical Schematic
Charging Circuit Diagnosis
PTO Circuit Operation
PTO Circuit Electrical Schematic
PTO Circuit Diagnosis
Control Panel Circuit Operation
Control Panel Circuit Electrical Schematic
Control Panel Circuit Diagnosis
Light Switch Circuit Operation
Light Switch Circuit Electrical Schematic
Light Switch Circuit Diagnosis
Turn Signal Circuit Operation
Turn Signal Circuit Electrical Schematic
Turn Signal Circuit Diagnosis
Group 30 - Tests and Adjustments
Ground Circuit Test
Battery Voltage and Specific Gravity Test
Battery—Charge
Battery—Load Test
Unregulated Amperage Test—55 Amp
Regulated Amperage and Voltage Test
Starting Motor Solenoid Test
No-Load Amperage Draw and RPM Test
Starting Motor Amperage Draw Test
Engine Coolant Temperature Sensor Test
Engine Oil Pressure Switch Test
Glow Plug Test
Diode Test
Fuse Test
Control Panel Light Test
Light Switch Test
Fuel Pull-In Relay Test
Relay Test
Engine Glow Plug Relay Test
Key Switch Test
Seat Switch Test
Transmission Neutral Switch Test
Turn Signal Switch Test
Position Lights Switch Test
Hazard Lights Switch Test
Rear PTO Switch Test
PTO Switch Test
Fuel Shutoff Solenoid Test
Fuel Gauge Sensor Test—NA
Fuel Gauge Sensor Test—EEC
PTO Solenoid Test
Parking Brake Switch Test and Adjustment
Brake Switch Test
Work Light Switch Test
Section 45 - EXPORT ELECTRICAL
Group 05 - Specifications
System Specifications
Service Equipment and Tools
Other Material
Group 10 - Component Location
Electrical Components
Group 15 - System Schematics
Schematic and Wiring Harness Legend
Electrical Schematic
W1 Main Wiring Harness
W1 Main Wiring Harness Color Codes
W2 Power Supply Wiring Harness
W2 Power Supply Wiring Harness Color Codes
W3 Battery Cable Wiring Harness
W3 Battery Cable Wiring Harness Color Codes
W4 Engine Wiring Harness
Y2 Fuel Shutoff Solenoid
Group 20 - Diagnostics & Operation
Power Circuit Operation
Power Circuit Electrical Schematic
Power Circuit Diagnosis
Cranking Circuit Operation
Cranking Circuit Electrical Schematic
Cranking Circuit Diagnosis
Engine Glow Plug Circuit Operation
Engine Glow Plug Circuit Electrical Schematic
Engine Glow Plug Circuit Diagnosis
Fuel Supply Operation
Fuel Supply Electrical Schematic
Fuel Supply Diagnosis
Engine Shutoff Circuit Operation
Engine Shutoff Electrical Schematic
Engine Shutoff Circuit Diagnosis
Charging Circuit Operation
Charging Circuit Electrical Schematic
Charging Circuit Diagnosis
PTO Circuit Operation
PTO Circuit Electrical Schematic
PTO Circuit Diagnosis
Control Panel Circuit Operation
Control Panel Circuit Electrical Schematic
Control Panel Circuit Diagnosis
Marker, Head, and Brake Light Circuit Operation
Marker, Headlight, Work, and Brake Light Circuit Electrical Schematic
Marker, Head, and Brake Light Circuit Diagnosis
Hazard Lights and Turn Signal Lights Circuit Operation
Hazard Lights and Turn Signal Lights Circuit Electrical Schematic
Hazard Lights and Turn Signal Lights Circuit Diagnosis
Power Port Circuit Theory of Operation
Power Port Circuit Electrical Schematic
Power Port Electrical Circuit Diagnosis
Section 50 - POWER TRAIN—HYDROSTATIC
Group 05 - Specifications
General Specifications
Torque Specification
Service Equipment and Tools
Other Materials
Group 10 - Component Location
Hydrostatic Drive
Hydraulic Pedals Components
Cruise Control Components
Charge Pump and Hydrostatic Pump Components
Hydrostatic Motor Components
Center Case Components
Swash Plate Components
Center Case Input / Main Shaft Components
Pinion (Counter) Shaft Components
Range Shift Components
MFWD and PTO Shift Components
Front Drive Components
Mid PTO Components
PTO Drive Shaft and Inertia Brake Components
PTO Clutch Shaft Components
Rear PTO Components
Differential Case Components
Rear Axle Housing Components
Rear Axle and Final Pinion Components
Differential Carrier Components
Differential Components—MFWD
Final Drive Components—MFWD
Group 15 - Diagnostics
Hydrostatic Transmission
PTO System
Transaxle
Group 20 - Theory of Operation
Transmission
Component Location—Hydrostatic Transmission
Hydrostatic Schematic
Charge Pump Theory of Operation
Valve Block Theory of Operation
PTO Clutch and Brake Control Valves Theory of Operation
PTO Clutch and Brake Theory of Operation
Power Transmission—Traction Drive
Power Transmission—Mid and Rear PTO
Group 25 - Tests and Adjustments
Hydraulic Warm Up Procedure
Charge Pump/Steering System Relief Pressure Test
PTO Clutch Pressure Test
PTO Lubrication Pressure Test
PTO Brake Test
Transmission Neutral Adjustment
MFWD-to-Frame Clearance Adjustment
Group 30 - Repair
Hydrostatic Transmission Removal
Charge Pump Removal
Charge Pump Disassembly and Inspection
Charge Pump Assembly and Installation
Hydrostatic Motor Removal, Disassembly, and Inspection
Hydrostatic Motor Assembly and Installation
Hydrostatic Pump Removal and Installation
Valve Block Disassembly and Inspection
Valve Block Assembly
Cover Plate Removal and Installation
Cover Plate Disassembly and Inspection
Valve Plate Removal and Disassembly
Valve Plate Assembly and Installation
Differential Carrier Removal and Installation
Differential Carrier Disassembly and Inspection
Rear PTO Removal
Rear PTO Installation
Transmission Disassembly
Transmission Assembly
Mechanical Front Wheel Drive (MFWD) Removal
Final Drive Cover Disassembly and Inspection—MFWD
Final Drive Cover Assembly—MFWD
Final Drive Housing Disassembly and Inspection—MFWD
Final Drive Housing Assembly—MFWD
Spindle Housing Disassembly and Inspection
Spindle Housing Assembly
Differential Input Housing Disassembly—MFWD
Differential Input Housing Assembly—MFWD
Differential Disassembly and Inspection—MFWD
Differential Assembly—MFWD
Section 60 - HYDRAULICS
Group 05 - Specifications
General Hydraulic Specifications
Test and Adjustment Specifications
Repair Specifications
Torque Specifications
Service Equipment and Tools
Group 10 - Component Locations
Hydraulic System
Rockshaft
Rockshaft Control Valve—Component Location
Hydraulic Pump
Selective Control Valve Linkage—Component Location
Selective Control Valve Component Location
Group 15 - Hydraulic Schematics
Hydraulic Schematic
Steering Schematic
Rockshaft Hydraulic Schematic
Group 20 - Operation and Diagnostics
Hydraulic System
Hydraulics—SCV Operation
Group 25 - Troubleshooting
Hydraulic System
Group 30 - Theory of Operation
Hydraulics (Rockshaft)
Draft Linkage
System Pressure Relief
Speed Control Valve—Neutral
Rockshaft Control Valve—Raise
Rockshaft Control Valve—Lower
Rockshaft—Neutral
Group 35 - Tests and Adjustments
Hydraulic Warm Up Procedure
Rockshaft Sensitivity Adjustment
Lift Arm Adjustment
Implement Pressure Relief Adjustment
Charge Pump/Steering System Relief Pressure Test
PTO Clutch Pressure Test
Pump Flow Test
Rockshaft Lift Cycle Test
Rockshaft Leakage Test
Group 40 - Repair
Hydraulic Pump Removal and Installation
Hydraulic Pump Disassembly and Inspection
Hydraulic Pump Assembly
Screen Filter Removal and Replacement
Selective Control Valve (SCV)
Rockshaft Assembly Removal
Lift Arms Removal and Installation
Rockshaft Disassembly and Inspection
Rockshaft Removal
Rockshaft Control Valve Removal and Installation
Rockshaft Control Valve Disassembly, Inspection, and Assembly
Section 70 - STEERING
Group 05 - Specifications
Steering Specifications
Torque Specifications
Group 10 - Component Location
Steering System Component Location
Steering System Schematic
Group 15 - Theory of Operation
Steering Operation
Group 20 - Diagnostics
Steering Wheel:
Steering Diagnosis
Group 25 - Tests and Adjustments
Steering System Test
Group 30 - Repair
Tie Rod Removal and Installation
Steering Cylinder Removal and Installation
Steering Wheel Removal and Installation
Steering Control Unit (SCU) Removal and Installation
Section 80 - BRAKES
Group 05 - Specifications
Brake Specifications
Group 10 - Component Location
Brake Pedals and Linkage
Brake Pedals and Linkage—Explode
Brake Pedals and Linkage—Explode (Export)
Park Brake Component Location
Park Brake Component Location (Export)
Brake Housing Component Location
Group 15 - Theory of Operation
Brakes
Group 20 - Diagnostics
Steel Balls:
Step 1
Step 1
Step 1
Step 1
Brakes
Cruise Control Linkage
Group 25 - Tests and Adjustments
Brake Pedal Adjustment
Park Brake Adjustment—Export
Group 30 - Repair
Brake Disassembly and Inspection
Brake Assembly
Brake Pedal and Linkage Removal and Installation
Park Brake Linkage
Park Brake Linkage—Export
Cruise Control Linkage
Section 90 - MISCELLANEOUS
Group 05 - Specifications
General Specifications
Torque Specifications
Group 10 - Repair
Seat and Seat Frame Removal and Installation
Roll Over Protection System Removal and Installation
Rear Fenders Removal and Installation
Fender/ROPS Support Removal and Installation
Foot Deck Removal and Installation
Front Wheel Removal and Installation
Rear Wheel Removal and Installation
Battery Removal and Installation
Hood Removal and Installation
Muffler and Exhaust Pipe Removal and Installation
Steering Wheel Removal and Installation
Control Panel Removal and Installation
Control Panel Lower Shroud Removal and Installation
Fuel Tank Removal and Installation
Three Point Hitch Removal and Installation