John Deere 6620 Premium Utility Tractors Specifications

Engine

The engine is a John Deere 6068T turbocharged intercooled diesel 6-cylinder liquid-cooled with a displacement of 414.1ci / 6.8L and a bore/stroke of 4.19x5.00inches / 106x 127mm. It has a rated power of 125hp / 93.2kW and a rated rpm of 2300. The engine has an idle rpm of 850-2460 and an operating rpm of 1300-2300. It produces a torque of 392.0lb-ft / 531.6Nm at 1500 rpm and has a firing order of 1-5-3-6-2-4. The starter is electric with a voltage of 12. The intake valve clearance is 0.014inches / 0.356mm and the exhaust valve clearance is 0.018inches / 0.457mm.

Transmission

The transmission is a 24-speed partial power shift with an engine (net) power of 125hp / 93.2kW and a PTO (claimed) power of 110hp / 82.0kW. The transmission is designed to provide smooth shifting and efficient power transfer. It has a high and low range, allowing the operator to select the appropriate gear for the task at hand. The transmission also features a synchronized shuttle shift, which allows the operator to quickly and easily change direction without using the clutch. The transmission is designed to be durable and reliable, even in tough working conditions.

Brakes

The brakes are wet disc brakes that provide reliable stopping power in all conditions. The brake system is designed to be durable and long-lasting, with minimal maintenance required. The John Deere 6620 Premium has a hydrostatic power steering system that provides smooth and responsive steering. The fuel tank has a capacity of 54.7gal / 207.0L, which provides ample fuel for long working days. The brakes are designed to be easy to use, with a pedal that is easy to depress and a smooth, consistent feel.

Steering

The steering is hydrostatic power steering, which provides smooth and responsive steering. The John Deere 6620 Premium has a John Deere 6.8L 6-cylinder diesel engine that provides ample power for all tasks. The fuel tank has a capacity of 54.7gal / 207.0L, which provides ample fuel for long working days. The steering system is designed to be durable and reliable, with minimal maintenance required. The cab is standard, providing a comfortable and safe working environment for the operator.

Common Problems

Users have reported issues with the transmission, particularly with shifting between gears. Some users have also reported issues with the brakes, including reduced stopping power and excessive wear. Other common problems include issues with the hydraulic system, such as leaks and reduced performance. Some users have also reported issues with the engine, including reduced power and increased fuel consumption. Finally, some users have reported issues with the cab, including poor visibility and uncomfortable seating.

What Users Like

Users appreciate the power and performance of the John Deere 6620 Premium, particularly the smooth and responsive steering. They also appreciate the durability and reliability of the transmission and brake systems. Users like the comfortable and safe working environment provided by the standard cab, as well as the ample fuel capacity of the fuel tank. Finally, users appreciate the standard tires (ag), which provide excellent traction and stability in all conditions.

Techincal Specifications

Power
Engine (net)	125hp / 93.2kW
Pto (claimed)	110hp / 82.0kW
Engine Detail
Description	John Deere 6068T turbocharged intercooled diesel 6-cylinder liquid-cooled
Displacement	414.1ci / 6.8L
Bore/stroke	4.19x5.00inches / 106x 127mm
Rated Power (ece R24)	125hp / 93.2kW
Rated Rpm	2300
Idle Rpm	850-2460
Operating Rpm	1300-2300
Torque	392.0lb-ft / 531.6Nm
Torque Rpm	1500
Firing Order	1-5-3-6-2-4
Starter	electric
Starter Volts	12
Intake Valve Clearance	0.014inches / 0.356mm
Exhaust Valve Clearance	0.018inches / 0.457mm
Engine
Description	John Deere 6.8L 6-cyl diesel
Fuel Tank	54.7gal / 207.0L
Mechanical
Chassis	4x4 MFWD 4WD
Steering	hydrostatic power
Brakes	wet disc
Cab	Cab standard
Transmission	24-speed partial power shift
Tires
Standard Tires (ag)	Front: 14.9R28. Rear: 18.4R38
Dimensions And Tires
Weight	11,532lbs / 5230kg
Front Tire	14.9R28
Rear Tire	18.4R38
Serial Numbers
Location	Right side of main tractor frame
Hydraulics
Type	closed center load sensing
Pressure	2900psi / 200.0bar
Pump Flow	25.4gpm / 96.1lpm
Tractor Hitch
Rear Type	II/IIIN
Rear Lift	16,360lbs / 7420kg
Electrical
Ground	negative
Charging System	alternator
Charging Amps	90/115
Battery Volts	12
Power Take Off Pto
Rear Pto	independent
Rear Rpm	540/1000
Weight
Max Capacity	18,740lbs / 8500kg
Max Front Axle	9,039lbs / 4100kg 9,921lbs / 4500kg (braked axle)
Max Rear Axle	15,210lbs / 6899kg