The RK Tractors RK37 is a 4WD compact utility tractor manufactured by TYM for distributor RK Tractors (a part of Rural King) from 2017. The RK37 is equipped with a 1.6 L (100.2 cu·in) three-cylinder diesel engine and one of two transmissions: a syncro shuttle transmission with 12 forward and 12 reverse gears or a hydrostatic transmission with infinite (3-range) forward and reverse gears.
The RK Tractors RK37 compact utility tractor used the Yanmar 3TNV88-CR engine. It is a 1.6 L, 1,642 cm2, (100.2 cu·in) three-cylinder natural aspirated diesel engine with 88.0 mm (3.46 in) of the cylinder bore and 90.0 mm (3.54 in) of the piston stroke. This engine produced 37.9 PS (27.9 kW; 37.4 HP) at 3,000 rpm of output power.
The RK Tractors RK37 is equipped with power steering, wet disc brakes, two-post ROPS (S, H) or Cab (SC,HC) and 34.0 liters (9.0 US gal.; 7.5 Imp. gal) fuel tank.
Following attachments are available for the RK Tractors RK37 compact utility tractor:
- RK Tractors L102 loader
- RK Tractors BH7.5 backhoe
The RK37 tractor variants:
- RK37S shuttle ROPS
- RK37H hydrostatic ROPS
- RK37SC shuttle cab
- RK37HC hydrostatic cab
RK Tractors RK37 Specifications
| General Specifications | |
| Model | RK Tractors RK37 |
| Length |
S, H: 3,200 mm (126 in) SC, HC: 3,250 mm (128 in) |
| Width |
S, H: 1,360 mm (53.5 in) SC, HC: 1,475 mm (58.1 in) |
| Height |
S, H: 2,400 mm (94.5 in) SC, HC: 2,350 mm (92.5 in) |
| Wheel base |
S, SC: 1,640 mm (64.6 in) H, HC: 1,680 mm (66.1 in) |
| Ground clearance | 325 mm (12.8 in) |
| Weight |
S: 1,390 kg (3,064 lbs) H: 1,410 kg (3,109 lbs) SC: 1,550 kg (3,417 lbs) HC: 1,565 kg (3,450 lbs) |
| Fuel tank capacity | 34.0 liters (9 US gal.; 7.5 Imp. gal) |
| Battery | 12V |
| Cabin type | Two-post ROPS (S, H) or Cab (SC,HC) |
| Engine | |
| Engine model | Yanmar 3TNV88-CR |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 3 |
| Fuel type | Diesel |
| Displacement | 1.6 L, 1,642 cm2, (100.2 cu·in) |
| Bore and stroke | 88.0 mm X 90.0 mm (3.46 in X 3.54 in) |
| Horsepower | 37.9 PS (27.9 kW; 37.4 HP) at 3,000 rpm |
| Starter | Electric |
| Transmission and chassis | |
| Chassis | 4×4 MFWD 4WD |
| Steering type | Power |
| Brakes | Wet disc |
| Transmission model | – |
| Transmission type | Syncro shuttle |
| Gears | 12 forward and 12 reverse |
| Speed | Forward: 24.1 kmh (15.0 mph) |
| Transmission model | – |
| Transmission type | Hydrostatic |
| Gears | Infinite (3-range) forward and reverse |
| Speed | Forward: 27.0 kmh (16.8 mph) |
| Tires | |
| Front tires | Ag: 7-16 Lawn/turf: 28×8.5-15 |
| Rear tires | Ag: 11.2×24 Lawn/turf: 41×14-20 |
| Three-Point Hitch | |
| Category | I |
| Control type | Position control |
| Lift capacity (at ends) | 1,200 kg (2,645 lbs) |
| PTO (Power take-off shaft) | |
| Rear PTO type | Independent with electro-hydraulic clutch |
| Rear PTO speed | 540 rpm |
| Hydraulic system | |
| Hydraulic type | – |
| Valves | 1 |
| Pump flow | 6.4 gpm (24.2 lpm) |
| Steering flow | 4.6 gpm (17.4 lpm) |
| Total flow | 11.0 gpm (41.6 lpm) |
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