Introduction
This service manual is a comprehensive guide for the maintenance, repair, and overhaul of John Deere 720 and 730 Gas & LP Tractors. It is designed for mechanics and individuals performing detailed repairs or restoration work. The manual provides in-depth information, including specifications, torque values, and detailed procedures to ensure proper servicing of your tractor.
This manual is a digitally enhanced reproduction of the original manufacturer-issued manual, featuring high-resolution scans, updated information, and valuable tractor data such as serial information, measurements, capacities, and specifications. It is an essential tool for anyone serious about the repair or restoration of these tractor models.
Understanding Manual Types
It is important to distinguish between different types of manuals for effective tractor maintenance:
- Service Manual (SVC): This manual, also known as a shop or repair manual, details how to disassemble, repair, and reassemble the tractor. It is written for mechanics and includes critical information such as specifications, torque settings, and operational ranges. It is indispensable for significant repairs or restoration projects.
- Parts Manual (PTS): This manual features exploded views of all tractor components, offering detailed insights into assembly and disassembly. It also serves as a guide for ordering replacement parts. This manual complements the service manual by providing visual breakdowns of components.
- Operators Manual (OPT): Also known as the owner's manual, this document was originally supplied with the tractor. It provides instructions for operation, shift patterns, fluid capacities (e.g., antifreeze, crankcase oil), and adjustment procedures (e.g., brakes, clutch). It is crucial for daily operation and routine maintenance.
General Service Procedures Overview
This section outlines the general approach to using this service manual for various repair and maintenance tasks. Always refer to the specific chapters for detailed instructions.
1. Safety Precautions
Before beginning any service work, always review and adhere to all safety warnings and precautions outlined in the manual. Ensure the tractor is safely secured, engine is off, and appropriate personal protective equipment (PPE) is used.
2. Component Identification
Familiarize yourself with the tractor's components using diagrams and illustrations provided. Correct identification of parts is crucial for accurate service.
3. Disassembly and Assembly
Follow the step-by-step instructions for disassembling and assembling components. Pay close attention to torque specifications for fasteners and proper alignment of parts.
4. Adjustments and Testing
After repairs, perform necessary adjustments and tests as specified to ensure proper function and performance of the tractor system.
Maintenance Schedule and Procedures
Regular maintenance is vital for the longevity and optimal performance of your John Deere 720/730 tractor. This section provides a general overview; refer to specific chapters for detailed procedures.
- Engine Oil and Filter Change: Instructions for draining old oil, replacing the oil filter, and refilling with the correct type and quantity of engine oil.
- Fuel System Maintenance: Procedures for inspecting and replacing fuel filters, cleaning fuel lines, and checking for leaks in the gas and LP fuel systems.
- Cooling System Service: Guidelines for checking coolant levels, inspecting hoses and radiator, and flushing the cooling system.
- Brake System Adjustment: Steps for inspecting brake components and adjusting brake pedal free play for effective stopping.
- Clutch Adjustment: Procedures for checking and adjusting clutch free play to ensure smooth engagement and disengagement.
- Lubrication Points: Identification of all grease points and recommended lubrication intervals.
Image: Cover of the John Deere 720 730 Gas & LP Tractor Service Manual. This image displays the front cover of the service manual, indicating its purpose for John Deere 720 and 730 Gas & LP tractor models.
Troubleshooting Guide
This section provides a general troubleshooting guide for common issues. For detailed diagnostic procedures, refer to the specific chapters within the manual.
| Symptom | Possible Cause | Recommended Action |
|---|---|---|
| Engine Fails to Start | Low fuel, dead battery, faulty ignition, clogged fuel filter. | Check fuel level, test battery, inspect ignition system, replace fuel filter. |
| Engine Overheating | Low coolant, clogged radiator, faulty thermostat, loose fan belt. | Check coolant level, clean radiator, test thermostat, adjust fan belt tension. |
| Poor Engine Performance | Dirty air filter, incorrect fuel mixture, worn spark plugs, carburetor issues. | Clean/replace air filter, adjust carburetor, replace spark plugs, service carburetor. |
| Hydraulic System Malfunction | Low hydraulic fluid, clogged filter, faulty pump, relief valve issues. | Check fluid level, replace filter, inspect pump, test relief valve. |
Specifications
This section provides general specifications for the John Deere 720 and 730 Gas & LP Tractors. For detailed technical specifications, refer to the relevant sections within the manual.
- Manual Print Length: 306 pages
- Publication Date: January 1, 2000
- Tractor Models Covered: John Deere 720 Gas, John Deere 720 LP, John Deere 730 Gas, John Deere 730 LP
- Manual Type: Service Manual (SVC)
- Note: Specific engine, transmission, and other component specifications are detailed within the manual's chapters.
Warranty and Support
Information regarding product warranty or direct manufacturer support for this specific service manual is not provided in the product details. For inquiries related to the manual itself, please contact the vendor from whom it was purchased. For support regarding your John Deere tractor, please refer to official John Deere resources or authorized dealerships.
