| Manufacturer | RK Tractors |
| Price | 25,799(USD) |
| Model | RK55SC |
| Equipment Type | Compact Utility Tractors |
| Factory |
RK TRACTORS RK55SC POWER
| Engine (gross) | 55.1 hp/41.1 kW |
| PTO (claimed) | 44.9 hp/33.5 kW |
ENGINE DETAIL
The RK55SC tractor features a Yanmar 4TNV86T-CR turbocharged diesel engine with a displacement of 127.6 ci (2.1 L), offering a gross power output of 55.1 hp at 2800 RPM. Its common rail direct injection system enhances fuel efficiency and response, making it suitable for heavy-duty applications and varying terrain conditions. However, operators should be aware of potential challenges associated with turbo lag and the need for regular maintenance of the hydraulic and electrical systems to maximize the diesel engine's performance and longevity.
| Description | Yanmar 4TNV86T-CR/turbocharged diesel/4-cylinder/liquid-cooled |
| Displacement | 127.6 ci/2.1 L |
| Bore/Stroke | 3.39x3.54 inches/86 x 90 mm |
| Power (gross) | 55.1 hp/41.1 kW |
| Fuel system | common rail direct injection |
| Rated RPM | 2800 |
| Starter | electric |
| Starter volts | 12 |
RK TRACTORS RK55SC ENGINE
The RK Tractors RK55SC is equipped with a Yanmar 2.1L 4-cylinder diesel engine, which provides robust torque and efficiency for various agricultural tasks. Its 17-gallon fuel tank allows for extended operation periods, minimizing downtime during intensive activities. However, the relatively compact engine size may limit power output in more demanding applications compared to larger tractors.
| Description | Yanmar 2.1L 4-cyl diesel |
| Fuel tank | 17 gal/64.3 L |
TRANSMISSION
The RK55SC tractor features a mechanical shuttle with 16 forward and reverse gears, enhancing operator control during various tasks such as towing and fieldwork. The four synchronized gears in each of the four ranges provide versatility and adaptability, making it suitable for diverse terrains and applications. However, operators may need to adjust their shifting techniques to optimize performance in challenging conditions, as mechanical shuttles can require more manual coordination compared to fluid power systems.
| Type | mechanical shuttle |
| Gears | 16 forward and reverse |
| Description | Four synchronized gears (1-4) in four ranges with mechanical shuttle. |
SPEEDS
| Description | Reverse speeds are 15% slower than forward./ |
MECHANICAL
The RK55SC tractor features a robust 4x4 MFWD system, providing excellent traction and stability across diverse terrains. Its 16-speed mechanical shuttle transmission allows for versatile speed control, enhancing operational efficiency, particularly in tasks requiring frequent direction changes, such as loader work. The standard cab equipped with air-conditioning improves operator comfort, making it well-suited for extended use in hot conditions; however, maintenance of wet disc brakes may require more attention compared to dry systems.
| Chassis | 4x4 MFWD 4WD |
| Steering | power |
| Brakes | wet disc |
| Cab | Cab standard with air-conditioning and audio system. |
| Transmission | 16-speed mechanical shuttle |
HYDRAULICS
| Valves | 2 |
| Pump flow | 9.5 gpm/36.0 lpm |
| Total flow | 14.5 gpm/54.9 lpm |
| Steering flow | 5 gpm/18.9 lpm |
TRACTOR HITCH
| Rear Type | I |
| Control | position and draft control |
| Rear lift (at ends) | 3314 lbs/1503 kg |
| Rear lift (at 24 | 2945 lbs/1335 kg |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Clutch | electro-hydraulic |
| Rear RPM | 540 (1.375) |
RK TRACTORS RK55SC TIRES
The RK55SC tractor features various tire configurations tailored for agricultural, turf, and industrial applications, enhancing versatility. The standard AG tires (9.5x16 front; 14.9x24 rear) provide excellent traction in field conditions, ideal for plowing and planting, while the turf tires (12x16.5 front; 16.9x24 rear) minimize soil compaction, making it suitable for lawn care and landscaping. Considerations include the trade-off between traction and surface impact, as choosing the wrong tire type could lead to inefficiencies or damage in specific operational scenarios.
| Standard tires (ag) | Front: 9.5x16. Rear: 14.9x24 |
| Lawn/turf front | 12x16.5 |
| Lawn/turf rear | 16.9x24 |
| Industrial front | 12x16.5 |
| Industrial rear | 16.9x24 |
DIMENSIONS
| Wheelbase | 76.2 inches/193 cm |
| Length | 141.3 inches/358 cm |
| Width | 63.8 inches/162 cm |
| Height (cab) | 99.6 inches/252 cm |
| Weight | 4223 lbs/1915 kg |
| Ground clearance | 13.8 inches/35 cm |
DIMENSIONS & TIRES
The RK Tractors RK55SC features a compact wheelbase of 76.2 inches, providing enhanced maneuverability in tight spaces, ideal for small to mid-sized farms. Weighing 4223 lbs, it balances stability with agility, while the tire specifications (9.5x16 front and 14.9x24 rear) suggest compatibility with various implement attachments, although limited flotation on soft ground could be a challenge. Overall, this tractor is well-suited for diverse applications such as landscaping and light agricultural tasks, but operators should ensure the conditions match its weight and tire profile for optimal performance.
| Wheelbase | 76.2 inches/193 cm |
| Weight | 4223 lbs/1915 kg |
| Front tire | 9.5x16 |
| Rear tire | 14.9x24 |
ATTACHMENT OVERVIEW
| Description | Front-end loader/Backhoe |
RK TRACTORS L110 LOADER
| Loader weight | 1261 lbs/571 kg |
| Height (to pin) | 109.1 inches/277 cm |
| Clearance, dumped bucket | 80.8 inches/205 cm |
| Dump reach | 21.4 inches/54 cm |
| Dump angle | 45?/ |
| Reach at ground | 73.1 inches/185 cm |
| Rollback angle | 35?/ |
| Breakout force (at pin) | 4938 lbs/2239 kg |
| Lift to full height (at pin) | 2478 lbs/1124 kg |
| Bucket width | 72 inches/182 cm |
| Attachment style | quick coupler |
RK TRACTORS BH8.0 BACKHOE
| Backhoe type | RK Tractors BH8.0 Backhoe |
| Weight | 1500 lbs/680 kg *Without bucket |
| Transport height | 91.2 inches/231 cm |
| Bucket width | 9 inches/22 cm/12 inches/30 cm/16 inches/40 cm/18 inches/45 cm/24 inches/60 cm |
| 2-Foot flat digging depth | 103.2 inches/262 cm |
| Reach from pivot | 134.4 inches/341 cm |
| Loading height | 92.4 inches/234 cm |
| Bucket Rotation | 151 |
| Swing Arc | 180 |
| Bucket force | 4435 lbs/2011 kg |
| Dipperstick force | 2694 lbs/1221 kg |
ELECTRICAL
| Ground | negative |
| Charging system | alternator |
| Charging amps | 70 |
| Battery volts | 12 |