| Manufacturer | John Deere |
| Price | 73,000(USD) |
| Model | 4755 |
| Equipment Type | Row-Crop Tractors |
| Factory | Waterloo, Iowa, USA |
OCED TRACTOR TEST 1621 2
| Description | Diesel Powershift 4WD April 1 - May 1, 1989 Link: OCED Tractor Test 1621 file PTO performance Drawbar performance Gear 12 used for power test Gear 3 used for pull test |
| Max power | 147.76hp / 110.2kW |
| Fuel use | 9.7gal/hour / 36.7l/hour |
| Power at rated engine speed | 177.06hp / 132.0kW |
| Max pull | 21,481lbs / 9743kg |
OCED TRACTOR TEST 1630 2
| Description | Diesel Quad-Range 2WD September 1 - October 1, 1989 Link: OCED Tractor Test 1630 file PTO performance Drawbar performance |
| Max power | 156.97hp / 117.1kW |
| Fuel use | 9.6gal/hour / 36.3l/hour |
| Power at rated engine speed | 177.11hp / 132.1kW |
| Max pull | 19,898lbs / 9025kg |
JOHN DEERE 4755 POWER
| Engine (net) | 187.7hp / 140.0kW |
| Drawbar (claimed) | 151hp / 112.6kW |
| PTO (claimed) | 175hp / 130.5kW |
| Drawbar (tested) | 156.97hp / 117.1kW |
| PTO (tested) | 180.35hp / 134.5kW |
ENGINE DETAIL
The John Deere 4755 features a turbocharged 6-cylinder diesel engine with a displacement of 466 ci (7.6L) and a 16:1 compression ratio, delivering substantial power at a rated 2200 RPM. Its robust oil (22 qts) and coolant (32 qts) capacities support extended operational use, while dry air filtration can enhance engine longevity by minimizing particulate intake. However, the high compression and turbocharging may necessitate careful monitoring and maintenance to prevent overheating or excessive wear during heavy field applications.
| Description | John Deere turbocharged diesel 6-cylinder liquid-cooled inline |
| Displacement | 466ci / 7.6L |
| Bore/Stroke | 4.5625x4.75inches / 116x 121mm |
| Air cleaner | dry |
| Compression | 16:1 |
| Rated RPM | 2200 |
| Firing order | 1-5-3-6-2-4 |
| Starter volts | 12 |
| Oil capacity | 22qts / 20.8L |
| Coolant capacity | 32qts / 30.3L |
| Intake valve clearance | 0.015inches / 0.381mm |
| Exhaust valve clearance | 0.020inches / 0.508mm |
JOHN DEERE 4755 ENGINE
The John Deere 4755 features a robust 7.6L 6-cylinder diesel engine, offering high torque output ideal for heavy-duty applications such as tillage or hauling. Its durability and fuel efficiency are key advantages, although potential challenges include maintenance costs and parts availability due to its age. This model is particularly suited for large farming operations needing reliable performance in demanding conditions.
| Description | John Deere 7.6L 6-cyl diesel |
TRANSMISSIONS OVERVIEW
The John Deere 4755 features a robust transmission with both 16-speed partial power shift and 15-speed full power shift options, offering flexibility in various field conditions. The partial power shift enables smoother gear changes under load, enhancing productivity, while the full power shift provides seamless shifting without clutch engagement, ideal for intensive operations. However, the complexity of these systems may require specialized maintenance and operator training to maximize their efficiency and performance.
| Description | 16-speed partial power shift 15-speed full power shift |
TRANSMISSION 1
The John Deere 4755 features a Quad Range transmission, enabling efficient power management with four gears across four ranges, and a partial power shift system that provides a total of 16 forward and 6 reverse gears. This setup enhances operator flexibility, particularly in varying field conditions where rapid speed adjustments are required. However, mastering the gear transitions may pose a learning curve for inexperienced operators, particularly in demanding agricultural tasks such as tillage or heavy hauling.
| Transmission | John Deere Quad Range |
| Type | partial power shift |
| Gears | 16 forward and 6 reverse |
| Description | Four gears (1-4) in four ranges (A-D) with high-low power shift |
TRANSMISSION 2
The John Deere 4755 features a full power shift transmission with 15 forward and 4 reverse gears, facilitating seamless gear transitions during operation. This allows for efficient load management and enhanced traction control, particularly in varied agricultural scenarios. However, the complexity of the power shift system might require more frequent maintenance compared to simpler transmission types, underscoring the importance of routine checks for optimal performance.
| Transmission | John Deere Power Shift |
| Type | full power shift |
| Gears | 15 forward and 4 reverse |
MECHANICAL
The John Deere 4755 tractor features a robust powerlift system with either 2WD or 4WD configurations, enabling excellent traction control for diverse agricultural applications. Its inboard planetary final drives enhance durability and minimize maintenance, while the hydraulic wet disc brakes provide efficient stopping power under heavy loads. The Sound-Gard cab offers superior operator comfort and reduced noise levels, making it ideal for extended use in demanding environments.
| Chassis | 4x2 2WD/4x4 MFWD 4WD |
| Final drives | inboard planetary |
| Steering | power |
| Brakes | hydraulic wet disc |
| Cab | Sound-Gard cab |
| Transmissions | 16-speed partial power shift 15-speed full power shift |
CAPACITY
| Fuel | 102gal / 386.1L |
| Hydraulic system | 18.5gal / 70.0L (PowerShift) 20gal / 75.7L (PS MFWD) 26.9gal / 101.8L (QuadRange) |
HYDRAULICS
| Type | closed center |
| Capacity | 18.5gal / 70.0L (PowerShift) 20gal / 75.7L (PS MFWD) 26.9gal / 101.8L (QuadRange) |
| Pressure | 2530psi / 174.4bar |
| Valves | 2 or 3 |
| Pump flow | 29.5gpm / 111.7lpm |
| SCV flow | 20.6gpm / 78.0lpm |
TRACTOR HITCH
| Rear Type | III |
| Rear lift | 5,821lbs / 2640kg 6,614lbs / 3000kg (44mm lift cylinder) 7,057lbs / 3201kg (55mm lift cylinder) |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Clutch | hydraulic |
| Rear RPM | 1000 (1.75) |
JOHN DEERE 4755 TIRES
The John Deere 4755, equipped with Ag front tires (11.00-16) and Ag rear tires (20.8-38), offers a strong balance between stability and traction, making it suitable for various agriculture tasks and terrains. The larger rear tires provide better flotation in softer soils and increased load capacity, while the front tires enhance steering and maneuverability. However, potential challenges may arise in tight spaces due to its overall size, impacting its versatility for smaller operations or confined areas.
| Ag front | 11.00-16 |
| Ag rear | 20.8-38 |
DIMENSIONS
| 2WD Wheelbase | 118.5inches / 300cm |
| 4WD Wheelbase | 117.1inches / 297cm |
| Width | 118inches / 299cm *Minimum width with standard axle |
| Height (cab) | 118.8inches / 301cm |
| Shipping weight | 16,200lbs / 7348kg |
| Operating weight | 18,165lbs / 8239kg (4WD Powershift) |
| Rear axle | Rack-and-pinion: 3.94 by 108inches / 100by 2743mm |
DIMENSIONS & TIRES
The John Deere 4755 tractor features a robust weight range of 16,200 to 18,165 pounds, which enhances stability during operation, particularly in field conditions. The 4WD configuration, with a slightly shorter wheelbase of 117.1 inches, provides improved traction and maneuverability on uneven terrain, making it suitable for tasks like plowing and tilling. However, the larger rear tires (20.8-38) may pose challenges in wet soil situations, potentially leading to compaction and decreased soil health.
| 2WD Wheelbase | 118.5inches / 300cm |
| 4WD Wheelbase | 117.1inches / 297cm |
| Weight | 16200 to 18165 pounds |
| Front tire | 11.00-16 |
| Rear tire | 20.8-38 |
JOHN DEERE 280 LOADER
| Loader weight | 2795lbs / 1267kg |
| Height (to pin) | 178inches / 452cm |
| Clearance, dumped bucket | 152inches / 386cm |
| Dump reach | 26inches / 66cm |
| Clearance, level bucket | 173inches / 439cm |
| Rollback angle | 41° |
| Breakout force (lift) | 6220lbs / 2821kg |
| Lift to full height (at pin) | 4580lbs / 2077kg |
| Bucket width | 85inches / 215cm 97inches / 246cm |
JOHN DEERE 840 LOADER
| Clearance, dumped bucket | 149inches / 378cm |
| Dump angle | 60° |
| Rollback angle | 40° |
| Bucket width | 96.5inches / 245cm |
4755 SERIAL NUMBERS
| Location | Serial number plate on the rear of the 4755, above the PTO shaft |
| 1989 | 1001 |
| 1990 | 3001 |
| 1991 | 6501 |
ELECTRICAL
| Ground | negative |
| Charging system | alternator |
| Charging amps | 120 |
| Batteries | 2 |
| Battery CCA | 925 |
| Battery volts | 12 |