Introduction
Yanmar AF-33 Compact Utility Tractor
The Yanmar AF-33 is a compact utility tractor manufactured between 1992 and 1997. Designed for versatility in agricultural and landscaping applications, this model combines a liquid-cooled diesel powertrain with a selection of advanced transmission configurations.
Engine and Performance
The tractor is powered by a 1.5-liter, 3-cylinder Yanmar 3TNS84 diesel engine. It generates 32.6 horsepower (24.3 kW) at a rated speed of 2800 RPM. This liquid-cooled unit provides consistent power delivery for various implements, supported by an electric starter system.
Transmission and Drivetrain
The AF-33 features a 16-speed transmission system with two primary options: a mechanical shuttle or a four-speed power shift. Both configurations include a creeper range to allow for low-speed operations. The machine is equipped with four-wheel drive and power steering to ensure maneuverability and traction across uneven terrain.
Dimensions and Hydraulics
Measuring 70.9 inches in wheelbase and providing a ground clearance of 13.6 inches, the AF-33 is built for stability. It utilizes a JIS1 rear hitch type and a standard 540 RPM rear power take-off (PTO). The unit is typically fitted with 8-18 front and 12.4-28 rear agricultural tires.
Electrical and Operator Station
The electrical system operates on a 12-volt architecture, powered by a 70 Ah battery and a 35-amp charging system with a negative ground. The operator station features a two-post Rollover Protective Structure (ROPS), with an optional cab available for enhanced protection.
Conclusion
With its compact footprint, 16-speed transmission options, and 32.6 hp diesel engine, the Yanmar AF-33 is suited for small-to-medium scale agricultural tasks, property maintenance, and light utility work requiring precise speed control and maneuverability.
Production Information of Yanmar, AF-33
- Compact Utility tractor
| Manufacturer | Yanmar |
|---|
Dimension and Tires Information of Yanmar, AF-33
| Front tread | 48 inches [121 cm] |
|---|---|
| Wheelbase | 70.9 inches [180 cm] |
| Weight | 3153 lbs [1430 kg] |
| Height | 77.2 inches [196 cm] |
| Length | 125.5 inches [318 cm] |
| Rear tread | 45.3 to 59.1 inches [115 to 150 cm] |
| Ground clearance | 13.6 inches [34 cm] |
| Width | 57.9 inches [147 cm] |
| Standard tires (ag) | Front: 8-18. Rear: 12.4-28 |
|---|
Engine Specifications of Yanmar, AF-33
- Yanmar 3TNS84
- Liquid-cooled
- Diesel
- 3-cylinder
| Power | 32.6 hp [24.3 kW] |
|---|---|
| Displacement | 91.29 ci [1.5 L] |
| Rated RPM | 2800 |
| Bore/Stroke | 3.31x3.54 inches [84 x 90 mm] |
| Starter volts | 12 |
| Starter | Electric |
Transmission Information of Yanmar, AF-33
Transmission variants 1
- Four gears in three ranges, plus creeper range with mechincal shuttle.
| Type | Shuttle |
|---|---|
| Gears | 16 forward and reverse |
Transmission variants 2
- Four power shift gears in three ranges, plus creeper range with power shuttle
| Type | Four-speed power shift |
|---|---|
| Gears | 16 forward and reverse |
- 16-speed shuttle
- 16-speed four-speed power shift
Mechanical Specs of Yanmar, AF-33
- Four-wheel drive
- Power steering
- Two-post ROPS. Cab optional.
Power Information of Yanmar, AF-33
| Rear PTO Type | 540 (1.375) |
|---|---|
| Rear PTO Type(optional) | 1352@2800 |
| Rear PTO Type(optional) | 1039@2800 |
| Engine RPM | 595@2800 |
| Engine RPM(optional) | -749@2800 |
| Engine RPM(optional) | 816@2800 |
Three-Point Hitch of Yanmar, AF-33
| Rear Type | JIS1 |
|---|
Electrical System of Yanmar, AF-33
| Ground | Negative |
|---|---|
| Battery AH | 70 |
| Battery volts | 12 |
| Charging system | Alternator |
| Charging amps | 35 |
Where it sits
With 32 HP, the Yanmar AF-33 sits just above AF-30 (29 HP) in Yanmar's range. Its power puts it in the 20th percentile of 1990s models in our database (2097 machines).
Frequently asked questions
How much horsepower does the Yanmar AF-33 have?
The Yanmar AF-33 delivers 32 HP.
What years was the Yanmar AF-33 produced?
The Yanmar AF-33 was produced in 1992-1997.
What engine does the Yanmar AF-33 have?
The Yanmar AF-33 is powered by a Diesel, 3-cylinder engine.
What transmission does the Yanmar AF-33 use?
The Yanmar AF-33 uses a Shuttle transmission.
How much does the Yanmar AF-33 weigh?
The Yanmar AF-33 weighs 3153 lbs [1430 kg].
Is the Yanmar AF-33 4WD?
The Yanmar AF-33 is available in 4WD.