Engine

The engine is a John Deere 4045D diesel 4-cylinder liquid-cooled with a displacement of 276ci / 4.5L and a bore/stroke of 4.19x5.00inches / 106x 127mm. It has a power output of 75hp / 55.9kW and a compression ratio of 17.6:1. The engine is rated at 2400 rpm and produces a torque of 195lb-ft / 264.4Nm at 1600 rpm. It has a starter voltage of 12 and an oil capacity of 12.7qts / 12.0L. The coolant capacity is 11.4qts / 10.8L.


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Transmission

The transmission is a 9-speed unsynchronized gear with three gears (1-3) in three ranges (A-C) plus reverse range. Tractor must be stopped, and clutch used, before shifting range or gear. The transmission is powered by a John Deere 4045D diesel 4-cylinder liquid-cooled engine with a power output of 75hp / 55.9kW and a compression ratio of 17.6:1. The PTO (claimed) is 65hp / 48.5kW. The transmission is unsynchronized, which means that the gears do not have to be synchronized before shifting. This makes it easier to shift gears, especially when the tractor is moving. The transmission is reliable and durable, making it suitable for heavy-duty applications.

Brakes

The brakes are wet disc brakes. The John Deere 5603 tractor is equipped with a hydraulic braking system that uses oil to transfer pressure from the brake pedal to the brake pads. The brake pads are located inside the brake calipers, which are mounted on the wheels. When the brake pedal is pressed, the oil pressure increases, causing the brake pads to clamp down on the brake rotor, which slows down the tractor. The John Deere 4045D diesel 4-cylinder liquid-cooled engine powers the hydraulic system. The engine has a power output of 75hp / 55.9kW and a compression ratio of 17.6:1. The brakes are reliable and provide excellent stopping power, making them suitable for heavy-duty applications.



Steering

The steering is power steering. The John Deere 5603 tractor is equipped with a hydraulic power steering system that uses oil to transfer pressure from the steering wheel to the steering mechanism. The steering mechanism is connected to the front wheels, allowing the operator to turn the wheels left or right. The John Deere 4.5L 4-cyl diesel engine powers the hydraulic system. The engine has a power output of 75hp / 55.9kW and a compression ratio of 17.6:1. The power steering system makes it easier to steer the tractor, especially when it is moving at low speeds or when the operator is turning the wheels.


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Common Problems

Users have reported issues with the clutch, which can wear out quickly if not properly maintained. The hydraulic system can also develop leaks if the hoses are not properly tightened. The brakes can also wear out quickly if the tractor is used for heavy-duty applications. The transmission can also develop problems if it is not properly maintained. Finally, the engine can overheat if it is not properly cooled.

What Users Like

Users like the John Deere 5603 tractor because of its reliability and durability. The tractor is also easy to operate, with intuitive controls and a comfortable operator station. The tractor is also versatile, with a range of attachments available for different applications. Users also appreciate the tractor's fuel efficiency, which helps to reduce operating costs. Finally, users like the tractor's low maintenance requirements, which helps to reduce downtime and repair costs.

Techincal Specifications

Power

Engine75hp / 55.9kW
Pto (claimed)65hp / 48.5kW

Engine Detail

DescriptionJohn Deere 4045D diesel 4-cylinder liquid-cooled
Displacement276ci / 4.5L
Bore/stroke4.19x5.00inches / 106x 127mm
Power75hp / 55.9kW
Compression17.6:1
Rated Rpm2400
Torque195lb-ft / 264.4Nm
Torque Rpm1600
Starter Volts12
Oil Capacity12.7qts / 12.0L
Coolant Capacity11.4qts / 10.8L

Engine

DescriptionJohn Deere 4.5L 4-cyl diesel

Transmission

Typeunsynchronized gear
Gears9 forward and 3 reverse
Clutchdry 280mm disc
Oil Capacity42.3qts / 40.0L
DescriptionThree gears (1-3) in three ranges (A-C) plus reverse range. Tractor must be stopped, and clutch used, before shifting range or gear

Mechanical

Chassis4x2 2WD/4x4 MFWD 4WD
Steeringpower
Brakeswet disc
Transmission9-speed unsynchronized gear

Tires

Standard Tires (ag)Front: 7.50-16. Rear: 16.9-30 (2WD) Front: 12.4-24. Rear: 16.9-30 (4WD)
Optional Tires (ag)Front: 7.50-16. Rear: 13.6-38 (2WD) Front: 7.50-18. Rear: 18.4-30 (2WD) Front: 7.50-16. Rear: 18.4-30 (2WD) Front: 7.50-16. Rear: 14.9-24 (2WD) Front: 12.4-24. Rear: 13.6-38 (4WD) Front: 14.9-24. Rear: 23.1-26 (4WD) Front: 12.4-24. Rear: 18.4-30 (4WD) Front: 8.3-24. Rear: 14.9-24 (4WD) Front: 9.5-24. Rear: 14.9-28 (4WD)

Dimensions

Wheelbase85.7inches / 217cm
Length151.6inches / 385cm
Height78.7inches / 199cm
Shiping Weight5269lbs / 2390kg
Max Weight9921lbs / 4500kg
2wd Front Tread56.7 to 78.7inches / 144to 199cm
4wd Front Tread45.7 to 77.4inches / 116to 196cm
Rear Tread55.1 to 70.9inches / 139to 180cm

Dimensions And Tires

Wheelbase85.7inches / 217cm
Weight5269lbs / 2390kg
Front Tire7.50-16
Rear Tire16.9-30 (2WD)

Serial Numbers

LocationSerial plate on the front-left tractor frame, above the front axle

Capacity

Fuel18gal / 68.1L
Hydraulic System10.6gal / 40.1L
Front Hubs0.85qts / 0.8L (Dana) 0.8qts / 0.8L (ZF)
Front Diff.5.3qts / 5.0L (Dana) 4.2qts / 4.0L (ZF)

Hydraulics

Typeopen center
Capacity10.6gal / 40.1L
Pressure2750psi / 189.6bar
Valves0 to 2
Total Flow10.6gpm / 40.1lpm
Steering Flow6.8gpm / 25.7lpm

Tractor Hitch

Rear TypeII
Rear Lift (at Ends)5886lbs / 2669kg
Rear Lift (at 243968lbs / 1799kg

Electrical

Groundnegative
Charging Systemalternator
Charging Amps40
Battery Cca700
Battery Volts12

Speeds

DescriptionWith 18.4-30 R1 rear tires

Power Take Off Pto

Rear Ptoindependent
Rear Rpm540/540E
Engine Rpm540@2400 / 540E@1700