John Deere 4WD Loaders 344K iT4 Repair Service Manual (TM12930)

TM12930 - John Deere 344K 4WD Loader iT4 Technical Manual - Repair.PDF

Complete service repair manual for John Deere 4WD Loaders 344K (SN. from B030077) iT4 (PIN: 1LU344K***B030077-), with all the shop information to maintain, diagnostic, repair, refurbish/rebuild like professional mechanics.

John Deere 4WD Loaders 344K iT4 workshop service repair manual includes:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.

PRODUCT DETAILS:
Total Pages: 497 pages
File Format: PDF (bookmarked, ToC, Searchable, Printable, high quality)
Language: English

MAIN SECTIONS
Foreword
   Manual Identification-READ THIS FIRST!
   General Information
      Safety Information
      Torque Values
   Wheels
      Wheels and Fasteners
   Axles and Suspension Systems
      Removal and Installation
      Axle Shafts and U-Joints
      Axle Shaft, Bearings, and Rear Axle Reduction Gears
   Transmission
      Hydrostatic Components Removal and Installation
      Hydrostatic Components Repair
   Engine
      Removal and Installation
   Engine Auxiliary System
      Cooling System
      External Exhaust Systems
      External Fuel Supply Systems
   Damper Drive
      Removal and Installation
   Steering System
      Hydraulic System
   Service Brakes
      Active Elements
      Hydraulic System
   Park Brake
      Hydraulic System
   Frame or Supporting Structure
      Frame Installation
      Chassis Weights
   Operator`s Station
      Removal and Installation
      Operator Enclosure
      Heating and Air Conditioning System
   Sheet Metal and Styling
      Hood or Engine Enclosure
      Miscellaneous Shields
   Main Hydraulic System
      Hydraulic System
   Loader
      Bucket
      Attachment Coupler
      Frames
      Hydraulic System
   Dealer Fabricated Tools

tm12930 - 344K Compact 4WD Loader (PIN: 1LU344KX _ _B030077— )

Table of Contents

Foreword

Manual Identification—READ THIS FIRST!

Section 00: General Information

Group 0001: Safety Information

Recognize Safety Information

Follow Safety Instructions

Operate Only If Qualified

Wear Protective Equipment

Avoid Unauthorized Machine Modifications

Inspect Machine

Stay Clear of Moving Parts

Avoid High-Pressure Fluids

Avoid High-Pressure Oils

Work In Ventilated Area

Prevent Fires

Prevent Battery Explosions

Handle Chemical Products Safely

Decommissioning — Proper Recycling and Disposal of Fluids and Components

Exhaust Filter Ash Handling and Disposal

Prepare for Emergencies

Clean Debris from Machine

Add Cab Guarding for Special Uses

Use Steps and Handholds Correctly

Start Only From Operator's Seat

Use and Maintain Seat Belt

Prevent Unintended Machine Movement

Avoid Worksite Hazards

Use Special Care When Operating Loader

Keep Riders Off Machine

Avoid Backover Accidents

Avoid Machine Tip Over

Operating on Slopes

Operating or Traveling On Public Roads

Inspect and Maintain ROPS

Add and Operate Attachments Safely

Park and Prepare for Service Safely

Service Tires Safely

Service Cooling System Safely

Remove Paint Before Welding or Heating

Make Welding Repairs Safely

Drive Metal Pins Safely

Clean Exhaust Filter 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

Metric 24° O-Ring Seal DIN 20078 Service Recommendations

Service Recommendations For Non-Restricted Banjo (Adjustable) Fittings

Service Recommendations For O-Ring Boss Fittings With Shoulder

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

Section 01: Wheels

Group 0110: Wheels and Fasteners

Wheel Remove and Install

Tire Remove and Install

Section 02: Axles and Suspension Systems

Group 0200: Removal and Installation

Front Axle Remove and Install

Rear Axle Remove and Install

Power-Takeoff (PTO) Gear Case Remove and Install

Group 0225: Axle Shafts and U-Joints

Drive Shaft Remove and Install

Group 0250: Axle Shaft, Bearings, and Rear Axle Reduction Gears

Axle Shaft, Bearings, and Rear Axle Reduction Gears

Power-Takeoff (PTO) Gear Case Disassemble and Assemble

Section 03: Transmission

Group 0300: Hydrostatic Components Removal and Installation

Hydrostatic Pump Valves Remove and Install

Directional Control Valve Remove and Install

Charge Pump Remove and Install

Hydrostatic Pump Remove and Install

Hydrostatic Motor Remove and Install

Inching Valve Remove and Install

Hydrostatic Start-Up Procedure

Group 0360: Hydrostatic Components Repair

Directional Control Valve Disassemble and Assemble

Hydrostatic Pump Disassemble

Hydrostatic Pump Assemble

Hydrostatic Motor Control Valve O-Rings and Seals Remove and Install

Hydrostatic Motor Flushing Valve Assembly O-Rings and Servo Piston Seals Remove and Install

Hydrostatic Motor Disassemble

Hydrostatic Motor Rotating Group Inspect and Recondition

Hydrostatic Motor Assemble

Section 04: Engine

Group 0400: Removal and Installation

John Deere Engine

Serpentine Belt Remove and Install

Engine Remove and Install

Section 05: Engine Auxiliary System

Group 0510: Cooling System

Hydraulic Fan Pump Remove and Install

Hydraulic Fan Pump Disassemble and Assemble

Cooling Fan and Hydraulic Fan Motor Remove and Install

Hydraulic Fan Motor Disassemble and Assemble

Fuel Cooler Remove and Install

Cooling Package Remove and Install

Group 0530: External Exhaust Systems

Diesel Particulate Filter (DPF) Remove and Install

Exhaust Filter Remove and Install

Group 0560: External Fuel Supply Systems

Primary Fuel Filter and Water Separator Remove and Install

Fuel Tank Remove and Install

Section 07: Damper Drive

Group 0700: Removal and Installation

Damper Drive Remove and Install

Section 09: Steering System

Group 0960: Hydraulic System

Orbital Steering Valve Remove and Install

Orbital Steering Valve Disassemble and Inspect

Orbital Steering Valve Assemble

Steering Column Remove and Install

Steering Cylinder Remove and Install

Steering Cylinder Disassemble and Assemble

Secondary Steering Pump Remove and Install

Secondary Steering Pump Disassemble and Assemble

Section 10: Service Brakes

Group 1011: Active Elements

Drum Brake Remove and Install

Service Brakes (Wet Disk) Remove and Install

Group 1060: Hydraulic System

Brake/Inching Valve Assembly Remove and Install

Brake Valve Disassemble and Assemble

Drum Brake Bleed

Section 11: Park Brake

Group 1160: Hydraulic System

Park Brake Disassemble and Assemble

Park Brake/Differential Lock Valve Block Remove and Install

Section 17: Frame or Supporting Structure

Group 1740: Frame Installation

Welding On Machine

Loader and Rear Frames Separation

Rotational Torque Spring Remove and Install

Upper Pivot Bushing Assembly Remove and Install

Lower Pivot Bushing Assembly Remove and Install

Group 1749: Chassis Weights

Counterweights Remove and Install

Section 18: Operator's Station

Group 1800: Removal and Installation

Cab Remove and Install

Group 1810: Operator Enclosure

Windowpanes Remove and Install

Group 1830: Heating and Air Conditioning System

Refrigerant Cautions and Proper Handling

Flush and Purge Air Conditioner System

R134a Refrigerant Oil Information

R134a Refrigerant Recovery/Recycling and Charging Station Installation Procedure

Recover R134a Refrigerant

Evacuate R134a System

Charge R134a System

Air Conditioner Compressor Remove and Install

Receiver-Dryer Remove and Install

Condenser Remove and Install

Air Conditioner/Heater Module Remove and Install

Heater Core Remove and Install

Evaporator Coil Remove and Install

Expansion Valve Remove and Install

Heater Control Valve Remove and Install

Air Conditioner Hi/Low Pressure Switch Remove and Install

Air Conditioner Freeze Control Switch Remove and Install

Blower Motor Remove and Install

Section 19: Sheet Metal and Styling

Group 1910: Hood or Engine Enclosure

Hood Remove and Install

Group 1913: Miscellaneous Shields

Rear Fenders Remove and Install

Section 21: Main Hydraulic System

Group 2160: Hydraulic System

General Oil Cleanup Procedure

Hydraulic Component Failure Cleanup Procedure

Hydraulic System Pressure and Accumulators Discharge Procedure

Hydraulic Pump Remove and Install

Hydraulic Pump Disassemble and Assemble

Hydraulic Reservoir Remove and Install

Section 31: Loader

Group 3102: Bucket

Bolt-On Cutting Edge Remove and Install

Cracked Cutting Edge Repair

Group 3104: Attachment Coupler

Quick Coupler Remove and Install

Group 3140: Frames

Boom and Bucket Linkage Remove and Install

Bucket Linkage Bushings Remove and Install

Loader Boom Bushings Remove and Install

Group 3160: Hydraulic System

Loader Control Valve Remove and Install

Loader Control Valve Disassemble and Assemble

Inlet/Return Manifold Section Disassemble and Assemble

Bucket Valve Section Disassemble and Assemble

Boom Valve Section Disassemble and Assemble

Auxiliary Valve Section Disassemble and Assemble

Loader System Load Sense and Circuit Relief Valves Disassemble and Assemble

Ride Control Valve Remove and Install

Ride Control Valve Disassemble and Assemble

Boom Cylinder Remove and Install

Bucket Cylinder Remove and Install

Attachment Quick Disconnect Cylinder Remove and Install

Boom and Bucket Cylinders Disassemble and Assemble

Boom and Bucket Cylinder Bushings Remove and Install

Pilot Control Valve Remove and Install

Pilot Enable Solenoid Valve Remove and Install

Pilot Accumulator Remove and Install

Section 99: Dealer Fabricated Tools

Group 9900: Dealer Fabricated Tools

DFT1214 Hydrostatic Pump Servo Piston Snap Ring Removal and Installation Tool

DFT1246 Oil Filter Caddy Adapter

DFT1254 Differential Bevel Gear Holding Tool

DFT1255 Differential Bevel Gear Pin Installation Tool