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Engine:
Yanmar Standard
Power:
15 HP (Engine) / HP (PTO)
Fuel Type:
Diesel
Production:
1976 - 1979
| Overview | |
|---|---|
| Summary | x1976 - 1979 Sub-Compact Utility tractor |
| Production | |
|---|---|
| Manufacturer | Yanmar |
| Summary | Sub-Compact Utility tractor / Original price was $5,000 in 1979 |
| Variants | |
|---|---|
| YM155 | 2WD |
| YM155D | 4WD |
| Mechanical | |
|---|---|
| Summary | Two- or four-wheel drive |
| Differential lock | mechanical rear |
| Summary | Manual steering / Mechanical drum brakes / Open operator station. |
| Hydraulics | |
|---|---|
| Type | open center |
| Pump flow | 3.8 gpm 14.4 lpm |
| Tractor hitch | |
|---|---|
| Rear Type | I |
| Rear lift | 1210 lbs 548 kg |
| Electrical | |
|---|---|
| Ground | negative |
| Battery volts | 12 |
| Questions | |
|---|---|
| Summary | I purchased a YFL-575 loader from a 155D and I'm having trouble finding and sort of schematics or even pictures to help me figure out how/where to connect the hydraulic lines. Assuming you did not get a loader with a separate pump (driven off the front PTO) then Yanmar intended for the B440 selector valve to be installed. The hydraulics are installed in series from the diverter block to the selector valve. You could use the loader or hitch, but not both. / Email: Peter@TractorData.com |
| References | |
|---|---|
| Summary | / YFL-155TD Loaders published by Yanmar / Service Manual Model YM135(D), YM155(D) (AOD1048) published in 1976 / YM155/YM155D published in 1976, by Yanmar |
| Engine Detail | |
|---|---|
| Summary | Yanmar 2TR13A / diesel / 2-cylinder / liquid-cooled |
| Displacement | 40.4 ci 0.7 L |
| Bore/Stroke | 2.953x2.953 inches 75 x 75 mm |
| Power | 15 hp 11.2 kW |
| Compression | 23:1 |
| Rated RPM | 2700 |
| Torque | 28.9 lb-ft 39.2 Nm |
| Torque RPM | 2200 |
| Firing order | 1-2 |
| Starter volts | 12 |
| Oil capacity | 2.1 qts 2.0 L |
| Transmission | |
|---|---|
| Type | gear |
| Gears | 6 forward and 2 reverse |
| Clutch | 180mm dry disc |
| Yanmar YM155 Tires | |
|---|---|
| 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 |
| Dimensions | |
|---|---|
| Wheelbase | 48.8 inches 123 cm |
| Length | 99.2 inches 251 cm |
| Width | 37.6 inches 95 cm |
| Height (steering wheel) | 45.7 inches 116 cm |
| Height (hood) | 42.2 inches 107 cm |
| 2WD Weight | 1057 lbs 479 kg |
| 4WD Weight | 1145 lbs 519 kg |
| Ground clearance | 10.4 inches 26 cm |
| 2WD Front tread | 28.7 inches 72 cm |
| 4WD Front tread | 29.3 inches 74 cm |
| Rear tread | 27.6 to 33.5 inches 70 to 85 cm |
| Attachment overview | |
|---|---|
| Summary | 45" mid-mount mower deck / Front-end loader / Backhoe |
| 45" Mower deck | |
|---|---|
| Type | mid-mount Yanmar YMM-45 |
| 2-blade with hydraulic lift | |
| Cutting width | 45 inches 114 cm |
| Overall width | 54 inches 137 cm |
| Cut height | 1.1 to 5 inch 2 to 12 cm |
| Yanmar YBH-650 Backhoe | |
|---|---|
| Backhoe type | Yanmar YBH-650 Backhoe |
| Weight | 710 lbs 322 kg |
| Transport height | 61 inches 154 cm |
| Bucket width | 9 inches 22 cm |
| 13 inches 33 cm | |
| 16 inches 40 cm | |
| 19 inches 48 cm | |
| Digging depth | 73 inches 185 cm |
| Reach from pivot | 100 inches 254 cm |
| Loading height | 60 inches 152 cm |
| Swing Arc | 180° |
| Bucket force | 2400 lbs 1088 kg |
Last Database Update: 8/31/2025