John Deere 327-468 Square Baler Technical Manual
(TM1243)
Complete Table of Contents Breakdown: John Deere 327-468 Square Baler Technical Manual (TM1243)
Manual Front Matter
- 📄 Title Page & Safe Operation Practices: Critical safety warnings for setup, operation, maintenance, and repair.
- 📄 Table of Contents & How to Use This Manual: Explanation of part numbers, schematic symbols, and manual organization.
- 📄 Specifications & Identification: Model locations, serial number plates, and complete technical specifications (e.g., bale size, weight, plunger speed, PTO requirements, gearbox ratios).
Section 1: General Information & Maintenance
- ✅ Lubrication: Grease fitting locations, intervals, and recommended lubricants.
- ✅ Torque Values: Critical fastener torque specifications for major assemblies.
- ✅ Maintenance Schedules: Detailed interval charts for daily, weekly, and seasonal servicing (e.g., check chains, lubrication, gearbox oil).
- ✅ Tire Information: Inflation pressures and bearing maintenance.
- ✅ Storage & Preparation: Procedures for seasonal storage and reactivation.
Section 2: Baler-Specific Systems (Core Focus)
- ✅ Feeding System: Pickup assembly (height adjustment, reel), feeder forks, packer fingers, and pre-compression chamber adjustments.
- ✅ Knotting System: Major repair focus. Includes knotter frame, bill hooks, twine knives, strippers, twine holders, and tucker fingers. Setup and timing procedures are detailed here.
- ✅ Plunger & Crank Drive: Plunger head, knife adjustment, guides, crank bearings, and connecting rod.
- ✅ Bale Chamber & Density Control: Side sheets, starter roll, bale chute, and mechanical/hydraulic density control system adjustments.
Section 3: Power & Drive Systems
- ✅ PTO & Driveline: Universal joint, shear bolt protection, and driveline guard.
- ✅ Gearbox: Removal, installation, and internal component breakdown.
- ✅ Chain Drives & Clutches: All chain tensions, sprocket alignments, and the electric slip clutch for the feeding system.
- ✅ Bearing Locations & Replacement: Cross-reference of all bearings on the machine.
Section 4: Hydraulic System
- ✅ Hydraulic Schematic: Complete system diagram.
- ✅ Density Control Cylinder: Valve operation, cylinder repair, and pressure testing.
- ✅ Hydraulic Components: Pump, valve bank, hoses, and fittings. Includes troubleshooting flow.
Section 5: Electrical System
- ✅ Wiring Harness & Diagram: Complete full-wiring schematic for the entire baler.
- ✅ Switches & Sensors: Bale count switch, full bale indicator, twine break sensor.
- ✅ Actuators & Indicators: Electric clutch, warning lights, and monitor system connections.
Section 6: Diagnostic & Troubleshooting
- ✅ Systematic Diagnostic Procedures: Step-by-step guides for knotting failures, poor bale shape, and density issues.
- ✅ Troubleshooting Charts:Structured diagnostic outlines for:
- Baler does not feed/won’t tie
- Twine breaks or slips
- Uneven or loose bales
- Abnormal noises
- Electrical system failures
- Hydraulic system malfunctions
John Deere 327-468 Square Baler Technical Manual
Section 7: Disassembly, Repair & Assembly
- ✅ Component-Specific Chapters: Detailed, step-by-step instructions with illustrations for removing, repairing, and reinstalling every major subsystem listed above.
- ✅ Special Tools: List of recommended John Deere or specialty tools for tasks like knotter timing.
Section 8: Appendices & Reference
- ✅ Part Number Cross-Reference: For seals, bearings, and common wear items.
- ✅ Checklists: For pre-operational and seasonal setup.