Overview
The Jinma JM-284 is a four-wheel drive farm tractor manufactured in Yancheng City, China, featuring a 28 hp 1.5L three-cylinder diesel engine. The machine is equipped with a 12-speed gear transmission that includes a creeper range and a live 540/1000 RPM rear PTO. Its physical configuration consists of a 64.9-inch wheelbase, 3003-pound weight, and a two-post ROPS.
Ideal Applications
Transmission Configuration:
The tractor utilizes a gear transmission with three forward gears and one reverse gear across high, low, and creeper ranges to provide a total of 12 forward and 4 reverse speeds.
Engine and Cooling Specifications:
The liquid-cooled 93.5 ci diesel engine is rated at 2300 RPM and features a 22:1 compression ratio with a 10.56-quart coolant capacity.
Hitch and Hydraulic Performance:
Listed with an open center hydraulic system producing 4.2 gpm at 2200 psi, the tractor supports a Category I rear hitch with position control and an 875-pound lift capacity at 24 inches.
Production
| Description | Built in Yancheng City, China |
|---|---|
| Manufacturer | Jinma |
Engine
| Engine type | Jinma 1.5L 3-cyl diesel |
|---|---|
| Bore/Stroke | 3.346x3.543 inches (85 x 90 mm) |
| Compression | 22:1 |
| Coolant capacity | 10.56 qts (10.0 L) |
| Description | Jinma / diesel / 3-cylinder / liquid-cooled |
| Displacement | 93.5 ci (1.5 L) |
| Oil capacity | 6.36 qts (6.0 L) |
| Oil change | 250 h |
| Power | 28 hp (20.9 kW) |
| Rated RPM | 2300 |
| Starter volts | 12 |
Transmission
| Description | Three gears (1-3) plus reverse (R) in two ranges (low/high). Creeper range doubles available speeds. |
|---|---|
| Gears | 12 forward and 4 reverse |
| Transmission type | 12-speed gear |
| Type | gear |
Mechanical
| Description | Disc brakes / Two-post ROPS. |
|---|---|
| Drive type | Four-wheel drive |
| Steering | power |
Capacity
| Fuel | 5.81 gal (22.0 L) |
|---|---|
| Hydraulic system | 2.38 gal (9.0 L) |
Hydraulics
| Capacity | 2.38 gal (9.0 L) |
|---|---|
| Pressure | 2200 psi (151.7 bar) |
| Pump flow | 4.2 gpm (15.9 lpm) |
| Type | open center |
| Valves | 1 |
Hitch
| Control | position control |
|---|---|
| Rear lift (at 24"/610mm) | 875 lbs (396 kg) |
| Rear Type | I |
PTO
| Rear PTO | live (2-stage clutch) |
|---|---|
| Rear PTO Type | 540/1000 (1.375) |
Electrical
| Battery volts | 12 |
|---|---|
| Charging amps | 25 |
| Charging system | alternator |
| Ground | negative |
Dimensions & Tires
| Height | 84.7 inches (215 cm) |
|---|---|
| Length | 117.7 inches (298 cm) |
| Weight | 3003 lbs (1362 kg) |
| Wheelbase | 64.9 inches (164 cm) |
| Width | 56.6 inches (143 cm) |
| Front tire | 6.00-16 |
| Rear tire | 9.5-24 |
| Weight | 3003 lbs (1362 kg) |
| Wheelbase | 64.9 inches (164 cm) |
| Ag front | 6.00-16 |
| Ag rear | 9.5-24 |
Variants
| JM-280 | 2WD |
|---|---|
| JM-284 | 4WD |