Yanmar
Yanmar AF-28
The Yanmar AF-28 is a compact utility tractor produced from 1992 to 1997 as part of the AF Series. It features a 1.5L 3-cylinder liquid-cooled diesel engine producing 27.6 hp (20.6 kW) at 2500 RPM. The tractor offers 16-speed shuttle or 16-speed four-speed power shift transmissions, four-wheel drive, power steering, and a two-post ROPS with an optional cab. It has a wheelbase of 64.6 inches (164 cm), weighs 2767 lbs (1255 kg), and uses standard agricultural tires sized 7-16 front and 12.4-24 rear. The rear hitch is JIS1 type, and the PTO operates at 540 RPM with various engine RPM settings. Electrical system includes a 12-volt battery with 70 AH capacity and a 35 amp alternator. The AF-28 is related to the AF-26 and AF-30 models in the series.
Power-
Founded-
ModelAF-28
Technical Specifications
Detailed specifications and technical data for Yanmar AF-28
Power
| Engine power | 27.6 hp (20.6 kW) |
|---|
Tires
| Standard tires (ag) | Front: 7-16. Rear: 12.4-24 |
|---|
Engine
| Type | diesel |
|---|---|
| Model | Yanmar 3TNS84 |
| Power | 27.6 hp (20.6 kW) |
| Cooling | liquid-cooled |
| Starter | electric |
| Cylinders | 3-cylinder |
| Fuel tank | 10 gal (37.9 L) |
| Rated RPM | 2500 |
| Bore/Stroke | 3.31x3.54 inches (84 x 90 mm) |
| Displacement | 91.29 ci (1.5 L) |
| Starter volts | 12 |
Dimensions
| Width | 54.5 inches (138 cm) |
|---|---|
| Height | 77.4 inches (196 cm) |
| Length | 116.5 inches (295 cm) |
| Weight | 2767 lbs (1255 kg) |
| Wheelbase | 64.6 inches (164 cm) |
| Rear tread | 41.7 to 53.5 inches (105 to 135 cm) |
| Front tread | 42.5 inches (107 cm) |
| Ground clearance | 13 inches (33 cm) |
Electrical
| Ground | negative |
|---|---|
| Battery AH | 70 |
| Battery volts | 12 |
| Charging amps | 35 |
| Charging system | alternator |
Mechanical
| ROPS | Two-post ROPS. Cab optional. |
|---|---|
| Drive | Four-wheel drive |
| Steering | Power steering |
Production
| Series | AF Series |
|---|---|
| Category | Compact Utility tractor |
| Manufacturer | Yanmar |
| Years produced | 1992 - 1997 |
Transmission
| Options | 16-speed shuttle, 16-speed four-speed power shift |
|---|---|
| Type (shuttle) | shuttle |
| Gears (shuttle) | 16 forward and reverse |
| Type (power shift) | four-speed power shift |
| Gears (power shift) | 16 forward and reverse |
| Description (shuttle) | Four gears in three ranges, plus creeper range with mechanical shuttle. |
| Description (power shift) | Four power shift gears in three ranges, plus creeper range with power shuttle |
Tractor hitch
| Rear Type | JIS1 |
|---|
Power Take-off (PTO)
| Engine RPM | 551@2500, 756@2500, 963@2500, 1293@2500, -694@2500 |
|---|---|
| Rear PTO Type | 540 (1.375) |