DOWNLOAD COMPLETE TECHNICAL SERVICE MANUAL FOR JOHN DEERE 623, 644 ROUND BALER | PUBLICATION NUMBER - TM300319

TM300319 is the official technical service manual for John Deere 623 and 644 round balers. This comprehensive resource provides detailed specifications, diagnostic procedures, and repair instructions for both models. Designed for technicians and service professionals, it covers system operations, troubleshooting protocols, component identification, and maintenance schedules. Essential for anyone performing repairs, maintenance, or diagnostics on these baler models. Digital format ensures immediate access to critical technical information whenever needed.

CONTENT:
Foreword
Safety
Safety Information
General
Serial Numbers
Torques for Hardware
Lubrication
General Information
Electrical System - Repair
Connectors
Sensors, Switches and Potentiometers
Actuators
ELC Plus Monitor (Electronic Tying Control)
BaleTrak Control Monitor   Power Train
Walterscheid Powerline
Cam-Type Cut Out Clutch
Case (Baler with 540 rpm Gear Case)
Gear Case (Baler with 1000 rpm Gear Case)
Chain Tension
Braking System - Repair
Brakes
Hydraulic Brakes
Brake Shoe and Drum
Hydraulic System - Repair
General Information
Bale Density Control Valve (623 Silage and 644 Balers)
Bale Density Control Valve (623 MultiCrop Baler)
Bale Density Booster Device
Hydraulic Cylinders
 Gate Locking Valve
Rotary Feeder Hydraulic Components with ELC Monitor
Rotary Feeder Hydraulic Components with BaleTrak Control Monitor
Miscellaneous
Wheel Hub Repair
Bale Shape or Bale Full-Size Indicator
Floor Position Indicator
Tongue
Lubrication System - Repair
Drive Chain Lubrication
Pickup Repair
Pickup Drive Components
Precutter Device
Adjustment
Conveyor (MultiCrop Baler)
Repair
Net Tying
Repair
Twine Tying
Repair
Diagnostic Trouble Codes For BaleTrak Control
Description
Battery Voltage
Right Bale Shape Potentiometer R4
Left Bale Shape Potentiometer R3
Actuator M1
Net Actuator M2
Pickup Valve Y4
Knife Valve Y3
Drop Floor Valve Y2
Gear Case RPM Sensor S6
Twine Pulley Sensors S7/S8
Net Cut Sensor S4
Right Oversize Bale (Gate) Switch S1
Full-Size Bale Switch S3
EPROM
Troubleshooting
Bale Density/Gate Control - Troubleshooting
Twine Tying - Troubleshooting
 Chain Lubrication - Troubleshooting
Electrical System
General Information
Test Equipment
Electrical Diagram/Battery Wiring Harness
Electrical System/ELC Plus Monitor
Electrical Diagram/ELC Plus Control
Electrical System/BaleTrak Monitor
Electrical Diagram/BaleTrak Control
Diagnostic Modes
Lubrication System - Operation and Tests
Air Brake System Operation and Tests
Hydraulic Brake System Operation and Tests
Hydraulic Brake System - Description
Hydraulic Brake System - Tests
Hydraulic System Operation and Tests
Bale Density/Gate Control - Description
Bale Density/Gate Control - Tests
Rotary Feeder Hydraulic System without Precutter Device - Description
Rotary Feeder Hydraulic System without Precutter Device - Tests
Rotary Feeder Hydraulic System with Precutter Device - Description
Rotary Feeder Hydraulic System with Precutter Device - Tests
Special Tools - Dealer-Fabricated

TOTAL PAGE - 519

FILE FORMAT - PDF
LANGUAGE - ENGLISH