Jinma JM-284
Power
28 hp
Production
unknown
Engine
Diesel, 3-cylinder
Transmission
Gear
Weight
3003 lbs [1362 kg]
Drive
4WD
Introduction
Jinma JM-284: Compact Four-Wheel Drive Tractor
The Jinma JM-284 is a utility tractor produced by the Chinese manufacturer Jinma in Yancheng City. Designed for small-scale agricultural operations and property maintenance, this compact machine features a four-wheel-drive configuration and is characterized by its mechanical simplicity and versatile transmission system.
Engine and Performance
The tractor is powered by a 3-cylinder, liquid-cooled diesel engine with a displacement of 93.5 cubic inches (1.5 liters). It operates at a rated speed of 2300 RPM, delivering 28 horsepower (20.9 kW). The engine features a 22:1 compression ratio and requires a 6-quart oil capacity, with recommended oil changes every 250 hours.
Transmission and Drivetrain
Equipped with a gear-type transmission, the JM-284 provides 12 forward and 4 reverse gears. It utilizes a three-gear setup plus reverse across two ranges, supplemented by a creeper range that effectively doubles the available speed options. The drivetrain includes four-wheel drive, power steering, and disc brakes to ensure maneuverability and operator control.
Hydraulics and PTO
The hydraulic system is an open-center type with a pump flow of 4.2 gallons per minute (15.9 liters per minute) at a pressure of 2200 psi. It features one hydraulic valve and a 2.38-gallon capacity. The rear power take-off (PTO) is a live, two-stage clutch system offering dual speeds of 540 and 1000 RPM, utilizing a 1.375-inch shaft.
Hitch and Dimensions
The JM-284 is equipped with a Category I rear three-point hitch featuring position control, capable of lifting 875 lbs (396 kg) at 24 inches behind the hitch point. The tractor has a wheelbase of 64.9 inches, an overall length of 117.7 inches, and a width of 56.6 inches, with a total weight of 3003 lbs.
Conclusion
The Jinma JM-284 is a robust and functional tractor suited for small-acreage farming and general utility tasks. Its combination of four-wheel drive, a multi-speed transmission with creeper range, and basic hydraulic capabilities makes it a practical solution for users requiring a compact, reliable machine for light-duty agricultural work.
Production Information of Jinma, JM-284
- Built in Yancheng City, China
| Manufacturer | Jinma |
|---|
Dimension and Tires Information of Jinma, JM-284
| Wheelbase | 64.9 inches [164 cm] |
|---|---|
| Weight | 3003 lbs [1362 kg] |
| Height | 84.7 inches [215 cm] |
| Length | 117.7 inches [298 cm] |
| Width | 56.6 inches [143 cm] |
| Ag front | 6.00-16 |
|---|---|
| Ag rear | 9.5-24 |
Engine Specifications of Jinma, JM-284
- Jinma
- Liquid-cooled
- Diesel
- 3-cylinder
| Oil capacity | 6.36 qts [6.0 L] |
|---|---|
| Displacement | 93.5 ci [1.5 L] |
| Compression | 22:1 |
| Bore/Stroke | 3.346x3.543 inches [85 x 90 mm] |
| Coolant capacity | 10.56 qts [10.0 L] |
| Oil change | 250 h |
| Starter volts | 12 |
| Rated RPM | 2300 |
| Power | 28 hp [20.9 kW] |
Transmission Information of Jinma, JM-284
Transmission variants 1
- Three gears (1-3) plus reverse (R) in two ranges (low/high). Creeper range doubles available speeds.
| Type | Gear |
|---|---|
| Gears | 12 forward and 4 reverse |
Mechanical Specs of Jinma, JM-284
- Four-wheel drive
- Two-post ROPS.
- Disc brakes
| Steering | Power |
|---|
Power Information of Jinma, JM-284
| Rear PTO | Live (2-stage clutch) |
|---|---|
| Rear PTO Type | 540/1000 (1.375) |
Hydraulics Specifications of Jinma, JM-284
| Type | Open center |
|---|---|
| Pump flow | 4.2 gpm [15.9 lpm] |
| Valves | 1 |
| Capacity | 2.38 gal [9.0 L] |
| Pressure | 2200 psi [151.7 bar] |
Three-Point Hitch of Jinma, JM-284
| Rear Type | I |
|---|---|
| Control | Position control |
| Rear lift (at 24"/610mm) | 875 lbs [396 kg] |
Electrical System of Jinma, JM-284
| Ground | Negative |
|---|---|
| Battery volts | 12 |
| Charging system | Alternator |
| Charging amps | 25 |
Where it sits
With 28 HP, the Jinma JM-284 sits between JM-254 (25 HP) and JM-300 (30 HP) in Jinma's range.
Frequently asked questions
How much horsepower does the Jinma JM-284 have?
The Jinma JM-284 delivers 28 HP.
What years was the Jinma JM-284 produced?
The Jinma JM-284 was produced in unknown.
What engine does the Jinma JM-284 have?
The Jinma JM-284 is powered by a Diesel, 3-cylinder engine.
What transmission does the Jinma JM-284 use?
The Jinma JM-284 uses a Gear transmission.
How much does the Jinma JM-284 weigh?
The Jinma JM-284 weighs 3003 lbs [1362 kg].
Is the Jinma JM-284 4WD?
The Jinma JM-284 is available in 4WD.