John Deere 790 Tractor Specs: Your Comprehensive Guide
The John Deere 790 is a well-rounded, compact tractor with a lot of ability. It’s not just for farming – you can use it for lots of tasks! With a dependable Yanmar diesel engine, it can run powerfully without using a lot of fuel. The engine has 3 cylinders and puts out 27 horsepower. The tractor has an 8-speed collar shift with some forwards and reverse gears. This lets you control it well, no matter what job you’re doing or where. It’s light, weighing only 1,950 lbs, and has a narrow wheelbase of 60 inches. This makes tight turns easy, and it can even do well in tight spaces! It has a ground clearance of 12.2 inches and is strong enough for flat or rough ground. Its open-center hydraulic system is very good, with a flow rate of 5 GPM. It works with modern equipment for plowing, tilling, and mowing.
The John Deere 790 also has a PTO, which runs at 24.5 horsepower. This makes sure plenty of power goes to any attachments. It has a 7.7-gallon fuel tank and uses about 1.5 gallons of fuel every hour. This makes it a good, economical choice for long work sessions. You can get this tractor with different tires for different jobs. Keeping this tractor running smoothly is easy. It has things like a dual-element air cleaner and oil filters that are easy to change. The tractor should be serviced every 100 hours.
It’s small but mighty – farmers, landscapers, and landowners love it because it works hard and doesn’t break down. Made to last, it’s great for smaller or medium-size farms and chores. Let’s learn more about this super tractor! We’ll talk about its engine, what it can do, and all its cool features. We’ve even arranged it nicely in tables to make it easy to understand.
Key Features of the John Deere 790 Tractor
The John Deere 790 impresses with solid build and easy-to-use controls. Powered by a Yanmar diesel engine, paired with a multi-purpose transmission, this tractor is suited for different jobs. Tables below show its specs and performance measures.
Engine Specifications
| Specification | Details |
|---|---|
| Engine Type | 3-cylinder Yanmar diesel |
| Engine Displacement | 1.3 liters (79.2 cubic inches) |
| Gross Power | 27 horsepower (20.1 kW) |
| Rated RPM | 2600 |
| Air Cleaner | Dry type, dual-element |
| Cooling System Capacity | 4.2 quarts (4 liters) |
Transmission System
| Specification | Details |
| Transmission Type | Collar shift |
| Number of Gears | 8 forward, 2 reverse |
| Clutch | Dry type, single clutch |
| Maximum Forward Speed | 14.9 mph (24 km/h) |
| Maximum Reverse Speed | 3.5 mph (5.6 km/h) |
Dimensions and Weight
| Specification | Details |
| Length | 106 inches (2,692 mm) |
| Width | 50 inches (1,270 mm) |
| Height (to steering wheel) | 78.8 inches (2,002 mm) |
| Wheelbase | 60 inches (1,524 mm) |
| Ground Clearance | 12.2 inches (310 mm) |
| Weight | 1,950 lbs (884 kg) |
Fuel System and Capacity
| Specification | Details |
| Fuel Type | Diesel |
| Fuel Tank Capacity | 7.7 gallons (29.1 liters) |
| Fuel Delivery System | Indirect injection |
| Fuel Efficiency | Approximately 1.5 gallons/hour |
PTO (Power Take-Off)
| Specification | Details |
| PTO Type | Live |
| PTO Speed | 540 RPM |
| PTO Power Output | 24.5 horsepower (18.3 kW) |
Hydraulics
| Specification | Details |
| Type | Open center |
| Pump Flow Rate | 5 gallons per minute (GPM) |
| Total Flow Rate | 9.3 GPM |
| Hydraulic Pressure | 2,500 psi |
| Control System | Position and draft control |
Tires and Tread Options
| Tire Type | Front Tire Size | Rear Tire Size |
| Agricultural (R1) | 5.00-15 | 11.2-24 |
| Industrial (R4) | 25×8.50-14 | 43×16.00-20 |
| Turf (R3) | 25×8.50-14 | 13.6-16 |
Performance and Capabilities
| Specification | Details |
| Maximum Lift Capacity | 815 lbs (370 kg) |
| Hitch Category | Category 1 |
| 3-Point Hitch Control | Position control |
| Turning Radius | 7.5 feet (2.3 meters) |
| Drawbar Pull | 1,400 lbs (635 kg) |
Maintenance and Service
| Specification | Details |
| Engine Oil Capacity | 3.5 quarts (3.3 liters) |
| Transmission Fluid Capacity | 16.6 quarts (15.7 liters) |
| Filter Types | Oil, fuel, air, and hydraulic |
| Service Interval | 100 hours (general maintenance) |
Frequently Asked Questions
How many HP is a John Deere 790?
The John Deere 790 is a powerful tractor. It provides 30 horsepower (or 22.4 kW). That’s a whole lot of power coming from a solid 1.5L, 3-cylinder Yanmar diesel engine! It also generates 26 PTO horsepower (19.4 kW), so it’s not just strong, it’s efficient too. Farmers love it for their work. Landscapers find it super handy as well.
Where is the serial number on a John Deere 790 tractor?
Check the rear of your John Deere 790 tractor. You’ll find the serial number there. It’s special and super important! Need to do repairs? Order parts? Or confirm the model year and details? You’ll need this number!
How to check hydraulic fluid on John Deere 790?
To examine the hydraulic fluid in a John Deere 790, first, warm the tractor. Next, find a flat spot and park it there. Make sure all the attachments are down. Near the back of the tractor, you’ll find the hydraulic reservoir. Wipe the area around the cap for cleanliness. The cap has a dipstick. Use it to see if the fluid level is right. Ensure it’s within the suggested range. Some tractors have a sight glass. If yours does, look at the fluid level that way. If you need more fluid, add it slowly. Use John Deere Hy-Gard or a similar approved option. A clean funnel will help you with this. Careful not to add too much. Put the cap back on securely. Run the tractor for a bit if you’ve added fluid. This will help it blend in. When checking levels, the engine should be off. That’s safer.
What size tires are on a 790 John Deere tractor?
The John Deere 790 tractor comes with a variety of tire sizes. Earlier models feature 6.00-12 front tires and 12.4-16 rear tires as standard. Tractors with four-wheel drive typically have 7.00-14 front and 11.2-24 rear tires. Also available are special tire sizes like 25×8.50-14 front and 15-19.5 rear for niche tasks including loader work. For accurate tire size details, it’s best to refer to the tractor’s manual.
Is the John Deere 790 suitable for small farms?
Yes, the John Deere 790 works great for small and medium farms. It’s small, runs on diesel and has trustworthy hydraulics. It can do plowing, mowing, and hauling work.
Can the John Deere 790 handle modern implements?
The 790 is equipped with a Category 1 3-point hitch and a live PTO. This allows it to accommodate many of today’s implements. We’re talking about things like rototillers, mowers, and front-end loaders.
How fuel-efficient is the John Deere 790?
Under usual working scenarios, the John Deere 790 uses about 1.5 gallons of diesel each hour. This makes it a cost-effective pick for lengthy work days.
Conclusion
The John Deere 790 is a handy tractor for small farms or property management. It’s not too big or too small. But, don’t let its size fool you; it performs big tasks. Got a Yanmar diesel engine? Check. Easy-to-use gear setup? Yep. Handy hydraulic system? Absolutely. The John Deere 790 certainly holds its place among compact tractors.