I was originally looking at tractors that were smaller(YT235) because of the unstable feeling that jeff9366 mention. After trying other machines and seeing how tough the land is, I think I need something bigger. It is time for a tractor. My neighbor uses a JD4210, and he said he wouldn't go any lighter or less powerful.
For choosing a specific tractor, I have 6 acres that we are developing and gravel road to maintain. It is tough scrubby land that we hit blue granite and a lot of up and down on the property. The big grading has been done by bulldozer, but as I add chicken pens and landscaping, I am finding I need something to help move material, level areas, and dig holes.
John Deere 4210
2002 - 2004 4000 Ten Compact Series
Compact Utility tractor
Previous model: John Deere 4200
Series next: John Deere 4310
Series back: John Deere 4115
Manufacturer: John Deere
Factory: Augusta, Georgia, USA
John Deere 4210 Engine:
Yanmar 1.3L 3-cyl diesel
John Deere 4210 Power:
Engine (gross): 27 hp [20.1 kW]
PTO (claimed): 23.5 hp [17.5 kW] (gear)
22 hp [16.4 kW] (hydro)
Capacity:
Fuel: 10 gal [37.9 L]
Hydraulic system: 6.3 gal [23.8 L] (gear)
6.8 gal [25.7 L] (hydro)
Front axle: 4.7 qts [4.4 L]
3-Point Hitch:
Rear Type: I
Rear lift (at 24"/610mm): 1,700 lbs [771 kg]
Power Take-off (PTO):
Rear PTO: independent
Rear RPM: 540
Mid PTO: optional
Mid RPM: 2100
Dimensions & Tires:
Wheelbase: 65 inches [165 cm]
Weight: 2375 to 2675 pounds
Mechanical:
Chassis: 4x2 2WD
4x4 MFWD 4WD
Differential lock: mechanical
Steering: power
Brakes: wet disc
Cab: Two-post ROPS. Foldable ROPS optional.
Hydraulics:
Type: open center
Capacity: 6.3 gal [23.8 L] (gear)
6.8 gal [25.7 L] (hydro)
Pressure: 2125 psi [146.5 bar]
Valves: 5
Pump flow: 7.0 gpm [26.5 lpm]
Total flow: 12.3 gpm [46.6 lpm]
Steering flow: 5.3 gpm [20.1 lpm]
The fundamental importance of TRACTOR WEIGHT eludes many tractor shoppers. Heavier tractor weight is more important for most tractor applications than increased tractor horsepower. Bare tractor weight is a tractor specification easily found in sales brochures and web sites, readily comparable across tractor brands and tractor models, new and used.
When considering a tractor purchase, bare tractor weight first, tractor horsepower second and (narrowly) rear wheel ballast third.
If you research 4-WD tractors with a bare tractor weight 2,500 to 3,000 pounds you should have a capable tractor for your ground engagement work, not too large for six acres. Every tractor brand has entries in this weight category, which is in the mainstream of compact tractor specifications.
Spreading the rear wheels/tires is the most effective manner in which to increase tractor stability. Filling the rear tires with liquid is second. If the slopes on your land make you nervous, have both done.