RK Tractors RK55SC

The RK Tractors RK55SC is a tractor produced by Rk Tractors. It is equipped with a 127.6 ci 2.1 L engine. The listed engine power is Diesel (gross): 55.1 hp / 41.1 kW. Transmission: 16 forward and reverse. Operating weight: 1500 lbs*Without bucket 680 kg.

Engine Power

Diesel (gross): 55.1 hp / 41.1 kW

Fuel & Capacities

17 gal 64.3 L

Transmission

16 forward and reverse

Operating Weight

1500 lbs*Without bucket 680 kg

Overview

	2017 - Compact Utility tractorTYM built
2017 -
Compact Utility tractor
TYM built

2017 -
Compact Utility tractor
TYM built

Production
Distributor	RK Tractors (a part of Rural King)
Manufacturer	TYM
Compact Utility tractor
Original price was $25,799 in 2017

Variants
RK55S	shuttle ROPS
RK55H	hydrostatic ROPS
RK55SC	shuttle cab
RK55HC	hydrostatic cab

RK Tractors RK55SC Engine
Yanmar 2.1L 4-cyl diesel
Fuel tank	17 gal 64.3 L
Engine details ...

RK Tractors RK55SC Transmission
16-speed mechanical shuttle
Transmission details ...

RK Tractors RK55SC Power
Engine (gross)	55.1 hp 41.1 kW
PTO (claimed)	44.9 hp 33.5 kW

Mechanical
Four-wheel drive
Power steering
Wet disc brakes
Cab standard with air-conditioning and audio system.

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"/610mm)	2945 lbs 1335 kg

Power Take-off (PTO)
Rear PTO	independent
Clutch	electro-hydraulic
Rear PTO Type	540 (1.375)

Dimensions & Tires
Wheelbase	76.2 inches 193 cm
Weight	4223 lbs 1915 kg
Front tire	9.5x16
Rear tire	14.9x24
Full dimensions and tires ...

Electrical
Ground	negative
Charging system	alternator
Charging amps	70
Battery volts	12

References

RK55 Shuttle Operator's Manual

Engine

	2017 - Compact Utility tractorTYM built
2017 -
Compact Utility tractor
TYM built

2017 -
Compact Utility tractor
TYM built

Engine Detail — 127.6 ci / 2.1 L Diesel

Manufacturer	Yanmar 4TNV86T-CR
Configuration	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

Transmission

	2017 - Compact Utility tractorTYM built
2017 -
Compact Utility tractor
TYM built

2017 -
Compact Utility tractor
TYM built

Transmission — 16 forward and reverse mechanical shuttle

Type	mechanical shuttle
Gears	16 forward and reverse
Four synchronized gears (1-4) in four ranges with mechanical shuttle.

Dimensions

	2017 - Compact Utility tractorTYM built
2017 -
Compact Utility tractor
TYM built

2017 -
Compact Utility tractor
TYM built

RK Tractors RK55SC Tires
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

Attachments

	2017 - Compact Utility tractorTYM built
2017 -
Compact Utility tractor
TYM built

2017 -
Compact Utility tractor
TYM built

Attachment overview
Front-end loader
Backhoe

RK Tractors BH8.0 Backhoe
Backhoe type	RK Tractors BH8.0 Backhoe
Weight	1500 lbs*Without bucket 680 kg
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

Photos

RK Tractors RK55SC

Recommended Implements & Sizing Guide

Engineering recommendations for Rk Tractors RK55SC based on its 55.1 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	3 to 4 Bottom (16")3 - 4 铧 (40 cm)	Heavy Duty	Suitable for medium loam and stubble turnover.
Rotary Cutter / MowerMowing & Clearing	6 ft (72 in)1.8 m	Medium Duty	Medium pasture clearing; rear slip-clutch recommended.
Rotary TillerSeedbed Prep	66 to 72 in165 - 180 cm	Medium Duty	Standard utility tiller; slip clutch protection required.
Disc HarrowSecondary Tillage	7 to 8 ft Tandem Disc2.1 - 2.4 m 对开双排耙	Medium Duty	Field leveling and clod breaking behind plows.
Hay BalerHay & Forage	Small Square Baler (14x18")小方捆打捆机 (36x46 cm)	Medium Duty	Classic 2-string baler for horse and small livestock hay.

Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Rk Tractors RK55SC.

Estimated Continuous Field Runtime: 5.9 hrs

Approximately 5.9 hours of continuous field operation at ~75% rated power on a full tank (17 gal / 64.4 L).

Estimated 75% Load Fuel Burn~2.9 gal/hr (10.8 L/hr)

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)

Standard Spec: API CK-4 / CJ-4 Heavy Duty

Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)

Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)

Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix

Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze

Service Interval: 2 Years / 1500 Hours