Overview
The Yanmar YM155 is a sub-compact utility tractor produced between 1976 and 1979, available in both two-wheel and four-wheel drive configurations. It features a 0.7L 2-cylinder diesel engine rated at 15 hp and a gear transmission providing six forward and two reverse speeds. The unit includes a Category I rear hitch with a 1210-pound lift capacity and a 540 RPM rear PTO.
Ideal Applications
Engine and Powertrain Output:
The 0.7L liquid-cooled diesel engine is rated at 15 hp and generates 28.9 lb-ft of torque at 2200 RPM.
Implement and Hitch Capacity:
The Category I rear hitch is rated for 1210 lbs of lift capacity and is supported by an open center hydraulic system with a 3.8 gpm pump flow.
Chassis and Drive Configuration:
With a 48.8-inch wheelbase and manual steering, the tractor was produced in 2WD (YM155) and 4WD (YM155D) variants weighing between 1057 and 1145 lbs.
Production
| Description | Sub-Compact Utility tractor / Original price was $5,000 in 1979 |
|---|---|
| Manufacturer | Yanmar |
Engine
| Engine type | Yanmar 0.7L 2-cyl diesel |
|---|---|
| Fuel tank | 4 gal (15.1 L) |
| Bore/Stroke | 2.953x2.953 inches (75 x 75 mm) |
| Compression | 23:1 |
| Description | Yanmar 2TR13A / diesel / 2-cylinder / liquid-cooled |
| Displacement | 40.4 ci (0.7 L) |
| Firing order | 1-2 |
| Oil capacity | 2.1 qts (2.0 L) |
| Power | 15 hp (11.2 kW) |
| Rated RPM | 2700 |
| Starter volts | 12 |
| Torque | 28.9 lb-ft (39.2 Nm) |
| Torque RPM | 2200 |
Transmission
| Clutch | 180mm dry disc |
|---|---|
| Gears | 6 forward and 2 reverse |
| Transmission type | 6-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Description | Manual steering / Mechanical drum brakes |
| Differential lock | mechanical rear |
| Drive type | Two- or four-wheel drive |
Hydraulics
| Pump flow | 3.8 gpm (14.4 lpm) |
|---|---|
| Type | open center |
Hitch
| Rear lift | 1210 lbs (548 kg) |
|---|---|
| Rear Type | I |
PTO
| Clutch | overrunning |
|---|---|
| Engine RPM | 540@2540 |
| Rear PTO Type | 540 (1.375) |
Electrical
| Battery volts | 12 |
|---|---|
| Ground | negative |
Dimensions & Tires
| 2WD Front tread | 28.7 inches (72 cm) |
|---|---|
| 2WD Weight | 1057 lbs (479 kg) |
| 4WD Front tread | 29.3 inches (74 cm) |
| 4WD Weight | 1145 lbs (519 kg) |
| Ground clearance | 10.4 inches (26 cm) |
| Height (hood) | 42.2 inches (107 cm) |
| Height (steering wheel) | 45.7 inches (116 cm) |
| Length | 99.2 inches (251 cm) |
| Rear tread | 27.6 to 33.5 inches (70 to 85 cm) |
| Wheelbase | 48.8 inches (123 cm) |
| Width | 37.6 inches (95 cm) |
| 2WD Rear tire | 8-16 |
| Front tire | 4.50-10 |
| Weight | 1057 to 1145 pounds |
| Wheelbase | 48.8 inches (123 cm) |
| 2WD Standard tires (ag) | Front: 4.50-10. Rear: 8-16 |
| 4WD Standard tires (ag) | Front: 5-12. Rear: 8-16 |
| Ag rear | 8-16 |
References
| Description | YFL-155TD Loaders published by Yanmar / Service Manual Model YM135(D), YM155(D) (AOD1048) published in 1976 / YM155/YM155D published in 1976, by Yanmar |
|---|
Variants
| YM155 | 2WD |
|---|---|
| YM155D | 4WD |
Yanmar YM155 attachments
| Description | 45" mid-mount mower deck / front-end loader / backhoe |
|---|