| Manufacturer |
Renault |
| Price |
- |
| Model |
681S |
| Equipment Type |
Utility Tractors |
| Factory |
|
RENAULT 681S POWER
ENGINE DETAIL
The Renault 681S tractor is powered by a reliable MWM D227-4 diesel engine, delivering a moderate 68 hp with a torque peak of 169.6 lb-ft at 1500 RPM, which makes it suitable for medium-duty agricultural tasks. With a bore/stroke of 3.875 x 4.724 inches and a high compression ratio of 17.8:1, this engine offers efficiency and durability, although it may demand higher quality diesel to optimize performance. The 12-volt starter system is conventional, ensuring easy ignition, but be aware of potential challenges in cold weather starting due to the engine's relatively high compression.
| Description |
MWM D227-4 diesel 4-cylinder liquid-cooled |
| Displacement |
230ci / 3.8L |
| Bore/Stroke |
3.875x4.724inches / 98x 120 mm |
| Power |
68hp / 50.7kW |
| Compression |
17.8:1 |
| Rated RPM |
2350 |
| Torque |
169.6 lb-ft /230.0 Nm |
| Torque RPM |
1500 |
| Starter volts |
12 |
RENAULT 681S ENGINE
The Renault 681S tractor features a robust MWM 3.8L 4-cylinder diesel engine, offering reliable performance for agricultural tasks. With a fuel tank capacity of 21.7 gallons (82.1 liters), it ensures extended operation between refueling, ideal for medium to large scale farms. However, operators should keep in mind potential engine maintenance challenges typical of diesel engines, such as fuel quality sensitivity and periodic injector servicing.
| Description |
MWM 3.8L 4-cyl diesel |
| Fuel tank |
21.7gal / 82.1L |
TRANSMISSION
The Renault 681S features a mechanical shuttle transmission with 12 forward and reverse gears, optimizing operator control during tasks requiring frequent direction changes. Its dry disc clutch design offers straightforward maintenance but may lead to increased wear in heavy-duty applications. Ideal for medium to heavy agricultural operations, its three-range gear system enhances versatility, allowing for efficient speed and torque adjustments across various terrains.
| Type |
mechanical shuttle |
| Gears |
12 forward and reverse |
| Clutch |
dry disc |
| Description |
Four gears in three ranges with shuttle. |
SPEEDS
| Description |
With 16.9-30 rear tires. Reverse speeds are 3% slower than forward./ |
MECHANICAL
The Renault 681S tractor, featuring a 4x2 and optional 4x4 MFWD configuration, provides versatility for varying terrains, enhancing traction and stability. Its 12-speed mechanical shuttle transmission allows for smooth shifting, optimizing performance in different working conditions. However, the dry disc brakes may require more frequent maintenance than hydraulic systems, which could be a consideration for prolonged operational use.
| Chassis |
4x2 2WD/4x4 MFWD 4WD |
| Steering |
power |
| Brakes |
dry disc |
| Cab |
ROPS. Cab optional. |
| Transmission |
12-speed mechanical shuttle |
HYDRAULICS
| Type |
open center |
| Pressure |
2611psi / 180.0bar |
| Total flow |
8.0gpm / 30.3lpm |
TRACTOR HITCH
| Rear Type |
II |
| Rear lift |
8489lbs / 3850kg |
POWER TAKE-OFF (PTO)
| Rear PTO |
independent |
| Rear RPM |
540/1000 (1.375) |
| Engine RPM |
551@2350 / 642@2350 (540/1000)/ 1099@2350 |
RENAULT 681S TIRES
The Renault 681S tractor offers two-wheel drive (2WD) and four-wheel drive (4WD) configurations, with standard and optional tire sizes that significantly affect traction and ground clearance. The 2WD configuration is ideal for lighter tillage tasks on firm ground, while the 4WD option enhances stability and traction in challenging conditions, making it suitable for varied agricultural applications. Consider the intended use: 4WD with larger optional tires provides improved performance in soft or uneven terrain but may lead to higher fuel consumption and maintenance requirements.
| 2WD Standard tires (ag) |
Front: 7.50-18. Rear: 16.9-30 |
| 4WD Standard tires (ag) |
Front: 11.2-24. Rear: 16.9-30 |
| 4WD Optional tires (ag) |
Front: 11.2-28. Rear: 13.6-38 |
DIMENSIONS
| 2WD Wheelbase |
93.3inches / 236cm |
| 4WD Wheelbase |
94.9inches / 241cm |
| 2WD Length |
150inches / 381cm |
| 4WD Length |
156.3inches / 397cm |
| Width |
64.6inches / 164cm *Minimum width. |
| Height (steering wheel) |
64.2inches / 163cm |
| Height (cab) |
96.1inches / 244cm |
| 2WD Front tread |
51.2 to 74.8inches / 130to 189 cm |
| 4WD Front tread |
53.2 to 74.8inches / 135to 189 cm |
| Rear tread |
51.2 to 78.8inches / 130to 200 cm |
RENAULT 681S WEIGHT
| 2WD ROPS |
5765lbs / 2615kg |
| 2WD Cab |
6504lbs / 2950kg |
| 4WD ROPS |
7187lbs / 3260kg |
| 4WD Cab |
7926lbs / 3595kg |
DIMENSIONS & TIRES
The Renault 681S tractor offers a compact wheelbase of 93.3 inches for 2WD and 94.9 inches for 4WD, enhancing maneuverability in tight agricultural settings. Weighing between 5765 to 7926 pounds provides a solid balance for traction, but might limit portability if frequent transport is required. The front tire size of 7.50-18 paired with a larger rear tire of 16.9-30 suggests optimized plowing and cultivation efficiency, while also emphasizing the potential for soil compaction in certain scenarios.
| 2WD Wheelbase |
93.3inches / 236cm |
| 4WD Wheelbase |
94.9inches / 241cm |
| Weight |
5765 to 7926 pounds |
| Front tire |
7.50-18 |
| 2WD Rear tire |
16.9-30 |
ELECTRICAL
| Charging system |
alternator |
| Charging amps |
35 |
| Battery volts |
12 |
| Battery AH |
80 |
