| Manufacturer | John Deere |
| Price | 182,672(USD) |
| Model | 8235R |
| Equipment Type | Row-Crop Tractors |
| Factory | Waterloo, Iowa, USA |
OCED TRACTOR TEST 2001 2
| Description | Diesel Powershift 4WD October 5 - 12, 2011 Link: OCED Tractor Test 2001 file PTO performance Drawbar performance Gear 8 used for power test Gear 4 used for pull test |
| Max power | 180.59hp / 134.7kW |
| Fuel use | 12.1gal/hour / 45.8l/hour |
| Power at rated engine speed | 206.43hp / 153.9kW |
| Power at rated PTO speed | 226.47hp / 168.9kW |
| Max pull | 23,632lbs / 10719kg |
OCED TRACTOR TEST 2001A 2
| Description | Diesel Powershift 4WD October 5 - 12, 2011 Link: OCED Tractor Test 2001A file PTO performance Drawbar performance Gear 8 used for power test Gear 4 used for pull test |
| Max power | 180.59hp / 134.7kW |
| Fuel use | 12.1gal/hour / 45.8l/hour |
| Power at rated engine speed | 206.43hp / 153.9kW |
| Power at rated PTO speed | 226.47hp / 168.9kW |
| Max pull | 23,632lbs / 10719kg |
JOHN DEERE 8235R POWER
| Engine (gross) | 235hp / 175.2kW |
| Engine (max) | 259hp / 193.1kW |
| Rear PTO (claimed) | 192hp / 143.2kW |
| Front PTO (claimed) | 150hp / 111.9kW |
| Drawbar (tested) | 180.59hp / 134.7kW |
| PTO (tested) | 235.14hp / 175.3kW |
ENGINE DETAIL
The John Deere 8235R features a robust PowerTech PSX 6-cylinder engine, offering a substantial power output with a rated power of 235 hp, expandable to 280 hp with Intelligent Power Management (IPM), ideal for demanding agricultural tasks. Its 9.0L displacement enables efficient fuel usage while meeting Interim Tier IV emissions standards via an EGR system. Considerations for maintenance include a 250-hour oil change interval and a dual-stage air cleaner designed to optimize performance and longevity in various operating conditions.
| Description | John Deere PowerTech PSX dual turbochargers diesel 6-cylinder 24-valve liquid-cooled inline Optional Intelligent Power Management (IPM) provides a 35HP increase at rated speed |
| Displacement | 548ci / 9.0L |
| Bore/Stroke | 4.66x5.35inches / 118x 136mm |
| Emissions | Interim Tier IV/Stage IIIB |
| Emission control | exhaust gas recirculation (EGR) |
| Rated Power (EC 97/98) | 235hp / 175.2kW |
| Maximum Power (EC 97/68) | 259hp / 193.1kW 280hp / 208.8kW (IPM) |
| Air cleaner | dual stage |
| Pre-heating | ether (optional) / block heater (optional) |
| Compression | 16:1 |
| Rated RPM | 2100 |
| Starter | electric |
| Starter volts | 12 |
| Oil capacity | 26.4qts / 25.0L (1300 axle) 29.5qts / 27.9L (1500/ILS axle) |
| Oil change | 250h / 500h / (JD Plus-50 II oil) |
| Coolant capacity | 43.3qts / 41.0L |
JOHN DEERE 8235R ENGINE
The John Deere 8235R tractor is powered by a robust 9.0L 6-cylinder diesel engine, providing high torque output for demanding agricultural tasks. With a fuel tank capacity of 183.6 gallons (694.9 liters), it offers extended operational range, minimizing downtime for refueling during large-scale farming operations. However, the tractor's weight and size may present challenges for maneuverability in tight spaces or on uneven terrain.
| Description | John Deere 9.0L 6-cyl diesel |
| Fuel tank | 183.6gal / 694.9L |
TRANSMISSIONS OVERVIEW
The John Deere 8235R features a 16-speed full power shift infinitely variable transmission (IVT), which allows for seamless speed transitions and optimal engine performance across varying field conditions. This IVT enhances operator control and reduces fatigue during long hours of operation, providing improved fuel efficiency and productivity. However, the complexity of the IVT system may require more frequent maintenance and specialized knowledge for repairs compared to traditional gear systems.
| Description | 16-speed full power shift infinitely variable transmission (IVT) |
TRANSMISSION 1
The John Deere 8235R features a sophisticated Automatic PowerShift transmission that enhances operational efficiency by automating gear shifts according to load conditions, thus optimizing engine power management. With 16 forward and 4 reverse gears, this tractor provides versatile speed control, making it ideal for various agricultural tasks, though the optional fifth reverse gear may require dealer reprogramming for some applications. In scenarios requiring frequent direction changes or varied load conditions, the power shift system minimizes strain on the operator, yet users should be aware of potential reprogramming costs for adapting to specialized tasks.
| Transmission | John Deere Automatic PowerShift |
| Type | full power shift |
| Gears | 16 forward and 4 reverse |
| Description | Automatic PowerShift uses computer control to shift based on load up to the highest selected gear. Fifth reverse is optional through dealer re-programming |
SPEEDS 1
| Description | With Group 47 rear tires. Speed R3 is at 2300 RPM and R4 is at 1500 RPM |
TRANSMISSION 2
The John Deere 8235R's AutoPowr transmission allows for seamless gear transitions, maximizing efficiency in varying field conditions. Its infinitely variable transmission (IVT) provides precise control over speed and torque, enhancing performance, especially during tasks requiring frequent speed adjustments. The option for a right- or left-hand reverser improves operator comfort and flexibility in maneuvers, making it ideal for tight spaces or loading applications.
| Transmission | John Deere AutoPowr |
| Type | infinitely variable transmission (IVT) |
| Gears | infinite forward and reverse |
| Description | IVT available with right- or left-hand reverser |
SPEEDS 2
| Description | The Auto Power IVT is available with 50km/h top speeds with ILS |
MECHANICAL
The John Deere 8235R tractor features a robust 4x4 MFWD configuration, enhancing traction and stability on diverse terrains, which is advantageous for heavy-duty agricultural tasks. The hydraulic rear differential lock improves maneuverability in challenging conditions, while the optional Active Command Steering (ACS) provides superior handling precision, particularly beneficial in tight spaces. The 16-speed IVT maximizes engine performance and fuel efficiency, offering seamless transitions for varying workloads, but may require more maintenance than standard gear systems.
| Chassis | 4x2 2WD/4x4 MFWD 4WD |
| Differential lock | hydraulic rear lock front lock on 1500 and ILS front axles |
| Steering | hydrostatic power Active Command Steering (ACS) optional |
| Brakes | differential hydraulic wet disc |
| Trailer brakes | hydraulic and air optional |
| Cab | CommandView II cab standard with heat and air-conditioning |
| Transmissions | 16-speed full power shift infinitely variable transmission (IVT) |
HYDRAULICS
| Type | closed center pressure-flow compensated |
| Pressure | 2900psi / 200.0bar |
| Rear valves | 3 to 5 |
| Pump flow | 35gpm / 132.5lpm |
| Total flow | 44gpm / 166.5lpm 60gpm / 227.1lpm (optional) |
TRACTOR HITCH
| Rear Type | 3/3N/4N/3 |
| Rear lift (at 24 | 13,300lbs / 6032kg (3/3N 2011) 17,300lbs / 7847kg (3/3N 2011) 18,300lbs / 8300kg (4N/3 2011) 13,600lbs / 6168kg (3/3N 2012) 17,600lbs / 7983kg (3/3N 2012) 18,700lbs / 8482kg (4N/3 2012) |
| Front Hitch | 3N/2 (optional) |
| Front lift (at ends) | 8,800lbs / 3991kg 11,450lbs / 5193kg 12,300lbs / 5579kg |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Rear RPM | 1000 (1-3/4) / 1000 (1-3/8 optional) / 540 (1-3/8 optional) |
JOHN DEERE 8235R TIRES
The John Deere 8235R tractor offers versatile tire options, with 11.00-24 for 2WD and 420/90R30 for 4WD in the front, paired with robust 480/80R46 rear tires, improving traction and load distribution. Its 4WD configuration enhances stability and performance on challenging terrain, making it suitable for heavy tillage and planting operations. However, the choice of larger tires can increase soil compaction; thus, careful consideration of field conditions is essential for optimal productivity.
| Ag front | 11.00-24 (2WD)/420/90R30 (4WD) |
| Ag rear | 480/80R46 |
DIMENSIONS
| Wheelbase | 126.7inches / 321cm (2WD) 120.1inches / 305cm (1300 MFWD) 118.9inches / 302cm (1500/ILS) |
| Length | 243.9inches / 619cm 258.3inches / 656cm (with front weights) |
| Width | 96inches / 243cm (axle) 118.5inches / 300cm (long axle) 137.3inches / 348cm (clearance lamps) 175.1inches / 444cm (extra-long lamps) |
| Height (cab) | 138.9inches / 352cm |
| Operating weight | 27,218lbs / 12346kg 30,252lbs / 13722kg (ILS) |
| Clearance (front axle) | 29.4inches / 74cm (2WD) 24.3inches / 61cm (1300) 23.5inches / 59cm (1500) 20.1inches / 51cm (ILS) |
| Clearance (rear axle) | 24.9inches / 63cm |
| Clearance (drawbar) | 12.6inches / 32cm |
DIMENSIONS & TIRES
The John Deere 8235R tractor features variable wheelbase options that enhance maneuverability, especially in tighter agricultural settings—126.7 inches for 2WD provides stability on flatter terrains, while the shorter wheelbases (120.1 inches for 1300 MFWD and 118.9 inches for 1500/ILS) improve agility in hilly or varied landscapes. Weighing between 27,218 to 30,252 pounds, it supports heavy lifting and towing capacities, making it suitable for demanding fieldwork, but operators must consider ground compaction impacts based on the chosen tire configurations (11.00-24 front and 480/80R46 rear) on various soil types. The dual-purpose tires allow for enhanced traction, yet the trade-off could be reduced efficiency in fuel consumption during high-load operations.
| Wheelbase | 126.7inches / 321cm (2WD) 120.1inches / 305cm (1300 MFWD) 118.9inches / 302cm (1500/ILS) |
| Weight | 27218 to 30252 pounds |
| Front tire | 11.00-24 |
| Rear tire | 480/80R46 |
8235R SERIAL NUMBERS
| Location | Front-right of tractor frame, above front axle |
ELECTRICAL
| Ground | negative |
| Charging system | alternator |
| Charging amps | 200 |
| Batteries | 2 |
| Battery CCA | 925 |
| Battery volts | 12 |