Complete technical Repair Manual for John Deere 240DLC and 270DLC Excavators. It's the same service manual used by dealers that guaranteed to be fully functional and intact without any missing page.

John Deere 240DLC and 270DLC Excavator Repair Technical Manual (including maintenance, overhaul, disassembling & assembling, adjustment, tune-up, operation, inspecting, diagnostic & troubleshooting…) is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices.

TM2323 - John Deere 240DLC and 270DLC Excavator Repair Technical Manual.pdf
625 pages, bookmarked, Searchable, Printable, high quality PDF

tm2323 - 240DLC and 270DLC Excavator

Table of Contents

Foreword

Technical Information Feedback Form

Section 00: General Information

Group 01: Safety

Recognize Safety Information

Follow Safety Instructions

Operate Only If Qualified

Wear Protective Equipment

Avoid Unauthorized Machine Modifications

Add Cab Guarding for Special Uses

Inspect Machine

Stay Clear of Moving Parts

Avoid High-Pressure Oils

Beware of Exhaust Fumes

Prevent Fires

Prevent Battery Explosions

Handle Chemical Products Safely

Dispose of Waste Properly

Prepare for Emergencies

Use Steps and Handholds Correctly

Start Only From Operator's Seat

Use and Maintain Seat Belt

Prevent Unintended Machine Movement

Avoid Work Site Hazards

Keep Riders Off Machine

Avoid Backover Accidents

Avoid Machine Tip Over

Use Special Care When Lifting Objects

Add and Operate Attachments Safely

Park and Prepare for Service Safely

Service Cooling System Safely

Remove Paint Before Welding or Heating

Make Welding Repairs Safely

Drive Metal Pins Safely

Group 0003: Torque Values

Metric Bolt and Cap Screw Torque Values

Additional Metric Cap Screw Torque Values

Unified Inch Bolt and Cap Screw Torque Values

Service Recommendations for 37° Flare and 30° Cone Seat Connectors

Service Recommendations for O-Ring Boss Fittings

O-Ring Boss Fittings In Aluminum Housing Service Recommendations—Excavators

Service Recommendations for Flared Connections—Straight or Tapered Threads

Service Recommendations For Flat Face O-Ring Seal Fittings

O-Ring Face Seal Fittings With SAE Inch Hex Nut And Stud End For High Pressure Service Recommendations

O-Ring Face Seal Fittings With Metric Hex Nut And Stud End For Standard Pressure Service Recommendations

O-Ring Face Seal Fittings With Metric Hex Nut And Stud End For High Pressure Service Recommendations

Service Recommendations for Metric Series Four Bolt Flange Fitting

Service Recommendations For Inch Series Four Bolt Flange Fittings

Inch Series Four Bolt Flange Fitting For High Pressure Service Recommendations

Service Recommendations For Non-Restricted Banjo (Adjustable) Fittings

Service Recommendations For O-Ring Boss Fittings With Shoulder

Metric 24° O-Ring Seal DIN 20078 Service Recommendations

Section 01: Tracks

Group 0130: Track System

Track Roller Remove and Install

Track Roller Disassemble and Assemble

Track Roller Pressure Test

Track Carrier Roller Remove and Install

Metal Face Seals Repair

Track Shoe Remove and Install

Track Chain Remove and Install

Track Chain Disassemble and Assemble

Track Chain Repair

Sprocket Remove and Install

Front Idler Remove and Install

Front Idler Disassemble and Assemble

Track Adjuster and Recoil Spring Remove and Install

Track Adjuster and Recoil Spring Disassemble and Assemble

Track Adjuster Cylinder Disassemble and Assemble

Section 02: Axles, Differentials and Suspension Systems

Group 0250: Axle Shaft, Bearings, and Reduction Gears

Travel Gearbox Remove and Install

Travel Gearbox Disassemble and Assemble—240DLC

Travel Gearbox Disassemble and Assemble—270DLC

Group 0260: Hydraulic System

Travel Motor and Park Brake Remove and Install—240DLC

Travel Motor and Park Brake Remove and Install—270DLC

Travel Motor and Park Brake Disassemble and Assemble—240DLC

Travel Motor and Park Brake Disassemble and Assemble—270DLC

Park Brake Valve Disassemble and Assemble—240DLC

Travel Motor Cover Disassemble and Assemble—270DLC

Travel Motor Start-Up Procedure

Section 04: Engine

Group 0400: Removal and Installation

Engine Remove and Install

Fuel Injection Pump Remove and Install

Starter Motor Remove and Install

Section 05: Engine Auxiliary System

Group 0510: Cooling System

Radiator Remove and Install

Oil Cooler Remove and Install

Charge Air Cooler Remove and Install

Fan Drive Motor Remove and Install

Fan, Fan Guard, and Fan Shroud Remove and Install

Serpentine Belt Remove and Install

Coolant Surge Tank Remove and Install

Fan Drive Pump Remove and Install

Fan Speed Solenoid Valve Remove and Install

Group 0520: Intake System

Air Cleaner Remove and Install

Group 0560: External Fuel Supply System

Fuel Tank Remove and Install

Primary Fuel Filter (Water Separator) Remove and Install

Final Fuel Filter Remove and Install

Section 07: Dampener Drive (Flex Coupling)

Group 0752: Elements

Damper Drive (Flex Coupling) Remove and Install

Section 17: Frame or Supporting Structure

Group 1740: Frame Installation

Welding On Machine

Welding Repair of Major Structure

Group 1749: Chassis Weights

Counterweight Remove and Install

Section 18: Operator's Station

Group 1800: Removal and Installation

Cab Remove and Install

Group 1810: Operator Enclosure

Windowpane and One Piece Molding Remove and Install

Sliding Windows Remove and Install

Windowpanes Remove and Install

Group 1821: Seat and Seat Belt

Seat Remove and Install

Seat Belt Remove and Install

Mechanical Suspension Seat Disassemble and Assemble

Air Suspension Seat Disassemble and Assemble

Group 1830: Heating and Air Conditioning

Refrigerant Cautions and Proper Handling

R134a Compressor Oil Charge Check

R134a Compressor Oil Removal

R134a Refrigerant Oil Information

R134a Refrigerant Recovery/Recycling and Charging Station Installation Procedure

Recover R134a Refrigerant

Evacuate R134a System

Charge R134a System

Compressor Remove and Install

Receiver-Dryer Remove and Install

Air Conditioner and Heater Remove and Install

Condenser Remove and Install

Section 33: Excavator

Group 3302: Buckets

Bucket Remove and Install

Adjust Bucket Pivot End Play

Bucket Pin-Up Data

Group 3340: Frames

Bucket Links Remove and Install

Arm Remove and Install

Boom Remove and Install

Inspect Pins, Bushings and Bosses—Front Attachment

Bushings and Seal Remove and Install

Group 3360: Hydraulic System

Apply Vacuum to Hydraulic Oil Tank

Hydraulic Oil Cleanup Procedure Using Portable Filter Caddy

Pump 1 and 2 Remove and Install

Pump 1 and 2 Disassemble and Assemble

Pump 1 and 2 Inspection

Pump 1 and 2 Start-Up Procedure

Pump 1 and 2 Regulator Remove and Install

Pump 1 and 2 Regulator Disassemble and Assemble

Pilot Pump Remove and Install

Pilot Pump Disassemble and Assemble

Pilot Pump Drive Shaft Remove and Install

Pilot Pressure Regulating Valve and Filter Remove and Install

Pilot Pressure Regulating Valve and Filter Disassemble and Assemble

Pilot Shut-Off Solenoid Valve Remove and Install

Pilot Shut-Off Solenoid Valve Disassemble and Assemble

Solenoid Valve Remove and Install—Power Digging (Port SG), Travel Speed (Port SI), Arm Regenerative (Port SC) and Dig Regenerative (Port SF) Valves

Solenoid Valve Disassemble and Assemble—Power Digging (Port SG), Travel Speed (Port SI), Arm Regenerative (Port SC) and Dig Regenerative (Port SF) Valves

Torque Control and Pump Flow Rate Limit Solenoid Valve Remove and Install

Left and Right Pilot Valve Remove and Install

Left and Right Pilot Valve Disassemble and Assemble

Travel Pilot Control Valve Remove and Install

Travel Pilot Control Valve Disassemble and Assemble

Pilot Signal Manifold Remove and Install

Pilot Signal Manifold Disassemble and Assemble

Control Valve Remove and Install

Left Control Valve (5-Spool) Disassemble and Assemble

Right Control Valve (4-Spool) Disassemble and Assemble

Hydraulic Oil Tank Remove and Install

Hydraulic Oil Tank Disassemble and Assemble

Oil Cooler Bypass Valve Remove and Install

Boom Cylinder Remove and Install

Boom Cylinder Disassemble and Assemble—240DLC

Boom Cylinder Disassemble and Assemble—270DLC

Arm Cylinder Remove and Install

Arm Cylinder Disassemble and Assemble—240DLC

Arm Cylinder Disassemble and Assemble—270DLC

Bucket Cylinder Remove and Install

Bucket Cylinder Disassemble and Assemble—240DLC

Bucket Cylinder Disassemble and Assemble—270DLC

Hydraulic Cylinder Bleed Procedure

Section 43: Swing or Pivoting System

Group 4350: Mechanical Drive Elements

Swing Gearbox Remove and Install

Swing Gearbox Disassemble and Assemble

Swing Gearbox Start-Up Procedure

Swing Bearing Remove and Install

Swing Bearing Disassemble and Assemble

Swing Bearing Upper Seal Install

Swing Bearing Lower Seal Install

Upperstructure Remove and Install

Group 4360: Hydraulic System

Center Joint Remove and Install

Center Joint Disassemble and Assemble

Center Joint Air Test

Swing Motor and Park Brake Remove and Install

Swing Motor and Park Brake Disassemble—240DLC

Swing Motor and Park Brake Assemble—240DLC

Swing Motor and Park Brake Disassemble—270DLC

Swing Motor and Park Brake Assemble—270DLC

Swing Motor and Park Brake Inspection

Swing Motor and Park Brake Start-Up Procedure

Crossover Relief Valve and Make-Up Check Valve Remove and Install

Make-Up Check Valve Disassemble and Assemble

Swing Dampener Valve Remove and Install

Swing Park Brake Check Valve and Orifice Remove and Install—270DLC

Section 99: Dealer Fabricated Tools

Group 9900: Dealer Fabricated Tools

DF1063 Lift Bracket

ST4920 Track Recoil Spring Disassembly and Assembly Tool

DFT1087 Track Recoil Spring Disassembly and Assembly Guard Tool

DFT1110 Spacer

DFT1130 Adapter

Center Joint Lifting Tool

DFT1119 Pump Support

DFT1220 Swing Gearbox Nut Spanner Wrench

DFT1305 Travel Gearbox Nut Wrench

EXCERPT:
TM2323 - 240DLC and 270DLC Excavator
Welding On Machine
IMPORTANT:
Electrical current traveling from the welder through the machine electrical system may damage the machine electrical system, including battery, engine control unit (ECU), information controller (ICF) and main controller (MCF). Disconnect battery cables and ECU, ICF and MCF electrical connectors before welding on the machine.
Before welding on the machine, follow the steps listed below to protect the machine electrical system.
1. Disconnect battery ground and positive cables.
TX1003378A-UN: Main Controller
LEGEND:
1 - Electrical Connectors
2 - Main Controller (MCF)
2. Remove rear console cover behind seat. See Rear Cover Remove and Install . (9015-20.)
3. Disconnect electrical connectors (1) from MCF (2). See Cab Harness (W1) Component Location . (9015-10.)
4. Disconnect electrical connectors (1) from ICF (2). See Cab Harness (W1) Component Location . (9015-10.)
...

John Deere 240DLC and 270DLC Excavator Repair Technical Manual (TM2323)