Renault
Renault 681S
The Renault 681S is a utility tractor produced from 1980 to 1986 as part of the S Series. It features a 68 hp MWM 3.8L 4-cylinder liquid-cooled diesel engine, a 12-speed mechanical shuttle transmission, and options for two- or four-wheel drive. The tractor includes power steering, dry disc brakes, and ROPS with an optional cab. It has an open center hydraulic system with 2611 psi pressure and 8.0 gpm flow. The rear hitch is category II with a lift capacity of 8489 lbs. The PTO is independent with 540/1000 rpm options. Dimensions vary between 2WD and 4WD models, with weights ranging from 5765 to 7926 lbs depending on configuration. Standard tires differ for 2WD and 4WD, with several optional tire sizes available for 4WD.
Power68 hp
Founded1979 - 1980
Model681S
Technical Specifications
Detailed specifications and technical data for Renault 681S
Power
| Engine power | 68 hp (50.7 kW) |
|---|
Tires
| 2WD Standard tires (ag) | Front: 7.50-18. Rear: 16.9-30 |
|---|---|
| 4WD Optional tires (ag) | Front: 9.5-28. Rear: 13.6-36,Front: 11.2-28. Rear: 13.6-36,Front: 13.6-24. Rear: 16.9-34,Front: 11.2-28. Rear: 13.6-38 |
| 4WD Standard tires (ag) | Front: 11.2-24. Rear: 16.9-30 |
Engine
| Type | diesel |
|---|---|
| Model | MWM D227-4 |
| Power | 68 hp (50.7 kW) |
| Torque | 169.6 lb-ft (230.0 Nm) |
| Cooling | liquid-cooled |
| Cylinders | 4-cylinder |
| Fuel tank | 21.7 gal (82.1 L) |
| Rated RPM | 2350 |
| Torque RPM | 1500 |
| Bore/Stroke | 3.875x4.724 inches (98 x 120 mm) |
| Compression | 17.8:1 |
| Displacement | 230 ci (3.8 L) |
| Starter volts | 12 |
Weight
| 2WD Cab | 6504 lbs (2950 kg) |
|---|---|
| 4WD Cab | 7926 lbs (3595 kg) |
| 2WD ROPS | 5765 lbs (2615 kg) |
| 4WD ROPS | 7187 lbs (3260 kg) |
Features
| Drive | Two- or four-wheel drive |
|---|---|
| Brakes | Dry disc brakes |
| Safety | ROPS. Cab optional. |
| Steering | Power steering |
Dimensions
| Width | 64.6 inches (164 cm) *Minimum width |
|---|---|
| 2WD Length | 150 inches (381 cm) |
| 4WD Length | 156.3 inches (397 cm) |
| Rear tread | 51.2 to 78.8 inches (130 to 200 cm) |
| Height (cab) | 96.1 inches (244 cm) |
| 2WD Wheelbase | 93.3 inches (236 cm) |
| 4WD Wheelbase | 94.9 inches (241 cm) |
| 2WD Front tread | 51.2 to 74.8 inches (130 to 189 cm) |
| 4WD Front tread | 53.2 to 74.8 inches (135 to 189 cm) |
| Height (steering wheel) | 64.2 inches (163 cm) |
Electrical
| Battery AH | 80 |
|---|---|
| Battery volts | 12 |
| Charging amps | 35 |
| Charging system | alternator |
Hydraulics
| Type | open center |
|---|---|
| Pressure | 2611 psi (180.0 bar) |
| Total flow | 8.0 gpm (30.3 lpm) |
Production
| Type | Utility tractor |
|---|---|
| Series | S Series |
| Years produced | 1980 - 1986 |
Transmission
| Type | mechanical shuttle |
|---|---|
| Gears | 12 forward and reverse |
| Clutch | dry disc |
| Description | Four gears in three ranges with shuttle. |
Tractor hitch
| Rear Type | II |
|---|---|
| Rear lift capacity | 8489 lbs (3850 kg) |
Power Take-off (PTO)
| Rear PTO | independent |
|---|---|
| Engine RPM | 551@2350, 642@2350 (540/1000), 1099@2350 |
| Rear PTO Type | 540/1000 (1.375) |
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