2004 John Deere 790 Tractor: Full Service & Custom Roof Build

John Deere 790 Tractor Overview

• 🚜 The 2004 John Deere 790 tractor, powered by a 1.3 L Yanmar 3-cylinder diesel engine producing 27 horsepower, is an invaluable asset for property maintenance tasks like mowing and brush hogging.
• 💡 The tractor has approximately 3004 hours and features a liquid-cooled engine, air filter, radiator, 12-volt battery, and an exhaust system.
• ⚙️ Key components accessible include the starter, hydraulic pump, alternator, and the hydraulic fluid filter located under the step.
• ⚠️ The front tires are severely dry-rotted and need replacement, while the back tires are still in good condition.

Annual Tractor Maintenance

• 🛢️ The annual maintenance includes an oil change, with a crankcase capacity of about one gallon, and a thorough check for leaks.
• 💨 Both an outer and inner air filter element were replaced, with the housing cleaned and reassembled.
• ⛽ Fuel system maintenance involved replacing a fuel strainer and the fuel filter, with a focus on purging air from the system to avoid issues with injectors.
• 💧 The hydraulic oil filter was also changed, as it was likely not serviced during the owner's tenure, and the hydraulic fluid was drained and refilled.

Custom Tractor Roof Fabrication

• ☀️ A custom roof was built to provide shade during hot weather, utilizing an old golf cart roof.
• 🛠️ The roof structure was fabricated using scrap metal, specifically one-by-one box tubing and flat stock for support pieces that attach to the tractor's roll bar.
• 🔗 The structure was secured to the roll bar using U-bolt clamps, and padding was added to the roll bar to cover exposed U-bolt areas.
• ✅ The finished roof is described as very strong, providing ample shade, and includes potential mounting points for future additions like LED light bars or a fan.