AGCO Allis 5680 Tractor 80 hp Features, Specifications, and Performance Overview
AGCO Allis 5680 Tractor 80 Hp
The AGCO Allis 5680 is an 80-horsepower utility tractor from the 5600 Series. This model is known for solid construction, a reliable engine, and features that suit heavy farm work.
Production & Identification
The AGCO Allis 5680 was introduced as part of the AGCO Allis 5600 Series. Production began in the early 1990s and continued until the late 1990s.
This utility tractor was designed to fit medium to large-scale farming needs. The 5680 is easily recognized by its bright orange and green AGCO Allis color scheme.
It offers a 2WD or 4WD option and typically comes with a ROPS (roll-over protective structure) and an open operator station. Most have a 16-speed shuttle transmission.
Serial numbers are stamped on the chassis, making identification straightforward. When searching for used or auctioned models, the model and serial number help verify authenticity.
Manufacturer / Brand
AGCO Allis is part of the AGCO Corporation. The brand was established after AGCO purchased parts of the Allis-Chalmers and Deutz-Allis tractor businesses.
The 5680 carries the AGCO Allis name, reflecting this heritage. AGCO Corporation is a global leader in agricultural machinery.
Its brands include Massey Ferguson, Challenger, Valtra, and Fendt. With AGCO Allis, the company aimed to bring proven reliability and European engineering, especially with the 5680’s SLH (Same/Lamborghini/Hurlimann) diesel engine.
Model Number / Series
The 5680 belongs to the AGCO Allis 5600 Series. This series included models like the 5670 and 5680, each targeted at different power needs.
The model number “5680” indicates a rated PTO horsepower of about 80 hp, with the “5” standing for the 5600 series and “680” generally linked to power ratings. Sometimes, equipment will reference only the series or related models, so verify you are looking at a 5680 and not the very similar 5670.
The 5680’s closest sibling is the 5670, which is slightly lower in horsepower but shares many components. Both are compatible with a range of loaders and farm implements.
Factory of Manufacture
The AGCO Allis 5680 was manufactured in Italy. The tractors were assembled at the facilities used for the SLH engine and transmission components.
Italian factory production allowed AGCO Allis to use European manufacturing standards, especially in engine technology and transmission quality. You will often see these tractors referenced as “European-built,” setting them apart from North American AGCO Allis models.
Italian-made tractors tend to have strong reputations for build quality in this power class.
Years Produced
The AGCO Allis 5680 was produced between 1991 and 1997. It entered the market during a period when AGCO was modernizing its tractor offerings.
During this time, the 5600 Series brought improvements in ergonomics and diesel efficiency, with newer SLH engines providing reliable power. Production ended as the AGCO Allis lineup evolved and newer series were introduced.
Original List Price (Launch Year)
The original list price of the AGCO Allis 5680 in its launch year (early 1990s) ranged from approximately $30,000 to $40,000 USD. The price varied depending on the standard features, location, and optional attachments like a front loader or a cab.
It was priced to compete with other utility tractors in the 80 hp segment, providing a good value for its engine performance and European build quality. Adjust for inflation, and today’s equivalent would be significantly higher.
Serial-Number Location
The serial number for the AGCO Allis 5680 is usually found stamped onto a plate on the left side of the tractor frame, just ahead of the operator’s platform. If you are examining a tractor for sale, check the plate for a clear serial number marking.
This number is necessary for identifying the exact year, verifying originality, and ordering correct replacement parts. On some units, the serial number may also appear in the operator’s manual or below the dash.
Always match these numbers to ensure they are consistent with original factory records.
Table: AGCO Allis 5680 Tractor 80 Hp Quick Reference
| Topic | Details |
|---|---|
| Production & Identification | Produced early to late 1990s; AGCO Allis orange/green; 2WD/4WD; 16-speed shuttle gearbox |
| Manufacturer / Brand | AGCO Allis (Part of AGCO Corp.), heritage from Allis-Chalmers/Deutz-Allis |
| Model Number / Series | 5680, part of 5600 Series; sibling: 5670; 80 PTO hp; medium-large utility |
| Factory of Manufacture | Assembled in Italy, using SLH diesel engines & transmissions |
| Years Produced | 1991 – 1997 |
| Original List Price | ~$30,000 – $40,000 (1990s USD; varies with features & location) |
| Serial-Number Location | Left side of chassis, ahead of operator’s platform; sometimes under dash/manual |
Engine Specifications
The AGCO Allis 5680 uses a diesel engine designed for steady performance and reliability. It offers 80 horsepower and a displacement size that delivers consistent power for tough jobs.
Engine Make & Model
The AGCO Allis 5680 features a SLH (Same-Lamborghini-Hürlimann) 4.0L engine. This model is a 4-cylinder unit known for durability and efficiency.
SLH engines are used in many agricultural machines because they are engineered to work under heavy loads. You get a direct injection system, which helps with better fuel efficiency and easier starting in cold weather.
The SLH 4.0L engine is built to provide a smooth operation that minimizes vibration and engine noise.
Below is a summary for quick reference:
| Engine Make | Model | Engine Family |
|---|---|---|
| SLH | 4.0L 1000.4 | Same-Lamborghini-Hürlimann |
Fuel Type & Emissions Tier
The AGCO Allis 5680 engine is diesel-powered. Diesel engines generally use less fuel than gasoline engines for the same amount of work.
This is useful if you run your tractor for long hours or on large properties. The emissions tier for this model is not officially listed.
Tractors of this era typically pre-date modern EPA Tier 3 or Tier 4 emission requirements. This means there are usually no diesel particulate filters (DPF) or selective catalytic reduction (SCR) systems.
Most diesel engines of the 1990s focus on mechanical fuel injection instead of high-tech electronic controls. You will not have complex emission systems to maintain, making servicing easier.
Additional Info:
- Fuel tank capacity: approx. 29 gallons (110 liters)
- Fuel system: Direct injection
- Emissions: Not Tier 3/4 compliant (pre-standards)
Cylinders / Displacement
The engine in the AGCO Allis 5680 is a 4-cylinder design. This configuration is popular in mid-sized tractors, offering a good balance between smoothness, torque, and fuel economy.
- Number of cylinders: 4
- Displacement: 4.0 liters
- Displacement (cubic inches): 244 cu in
This displacement gives you enough low-end torque for tillage and loader work. The cylinders use a bore and stroke of 4.13 inches (105 mm) x 4.55 inches (116 mm).
This stroke-to-bore ratio provides a low and flat torque curve, making your tractor feel responsive at low engine speeds.
| Engine Details | Value |
|---|---|
| Cylinders | 4 |
| Displacement (L) | 4.0 |
| Displacement (cu in) | 244 |
| Bore x Stroke (inches) | 4.13 x 4.55 |
Rated Horsepower (Gross & Net)
The AGCO Allis 5680 has a gross engine power rating of 80 hp (59.7 kW). This figure shows the maximum output the engine can produce with factory accessories and no major power loss through the transmission.
- PTO horsepower (claimed): 72 hp (53.7 kW)
- Drawbar horsepower (claimed): 62 hp (46.2 kW)
- Tested drawbar horsepower: 62.09 hp
Net horsepower (after accounting for losses due to the cooling fan, alternator, and other engine-driven components) is not always published, but typical net values are a few percent less than gross.
Table: Power Output Summary
| Power Rating | Value |
|---|---|
| Gross Engine Power | 80 hp (59.7 kW) |
| PTO (claimed) | 72 hp (53.7 kW) |
| Drawbar (claimed) | 62 hp (46.2 kW) |
| Drawbar (tested) | 62.09 hp (46.3 kW) |
Peak Torque (Nm @ rpm)
The manufacture does not publish a specific peak torque value for the SLH 4.0L engine in the AGCO Allis 5680. However, for a 4.0L agricultural diesel making 80 horsepower, typical peak torque is in the 250–300 Nm (184–221 lb-ft) range.
This torque generally happens at low to mid engine rpm—usually between 1,400 and 1,600 rpm. That helps you pull loads and run PTO-driven implements without having to rev the engine to maximum speed.
| Specification | Typical Value |
|---|---|
| Estimated Peak Torque | 250–300 Nm (184–221 lb-ft) |
| Peak Torque RPM | 1,400–1,600 rpm |
Compression Ratio
The compression ratio for the SLH 4.0L diesel engine is typically 17:1 to 17.5:1. Most 4-cylinder diesel engines in this size use a ratio in this range for stable ignition and efficient combustion.
Higher compression means more complete burning of fuel, which results in better fuel economy and easier starting. It also contributes to more torque at low rpm.
The compression ratio is a fixed characteristic set at the factory and is not adjustable.
| Compression Ratio | Typical Value |
|---|---|
| Range | 17:1 – 17.5:1 |
Cooling System & Capacity
The AGCO Allis 5680 uses a liquid-cooled system. Coolant circulates through the engine block and a large radiator to keep the engine at a stable operating temperature.
A thermostatically controlled fan helps the system cool the engine automatically as temperatures rise. This is important if you work in hot climates or use your tractor for long periods.
- Cooling system capacity: Approximately 15–16 quarts (14–15 liters)
- Type: Pressurized, liquid-cooled
- Radiator location: Front, standard flow
The cooling system is designed for easy servicing with accessible drain plugs and a fill cap.
Table: Cooling System Details
| Cooling Type | Capacity (quarts) | System Details |
|---|---|---|
| Liquid-cooled | 15–16 | Pressurized, thermostat-controlled fan |
Summary Table: AGCO Allis 5680 Engine Specs
| Category | Details |
|---|---|
| Engine Make/Model | SLH 4.0L (Same-Lamborghini-Hürlimann) |
| Fuel Type | Diesel, pre-emissions Tier 3/4 |
| Cylinders | 4 |
| Displacement | 4.0 L (244 cu in) |
| Bore x Stroke | 4.13 x 4.55 inches (105 x 116 mm) |
| Power (Gross) | 80 hp (59.7 kW) |
| PTO Power (claimed) | 72 hp (53.7 kW) |
| Drawbar Power | 62 hp (46.2 kW), tested 62.09 hp (46.3 kW) |
| Peak Torque | 250–300 Nm (est.), 1,400–1,600 rpm (est.) |
| Compression Ratio | 17:1 – 17.5:1 |
| Cooling System | Liquid-cooled, 15–16 quarts (14–15 liters) |
Power Take-Off (PTO)
The AGCO Allis 5680 comes equipped with a reliable Power Take-Off (PTO) system designed to handle a range of implements. Its horsepower, type, and speed options let you get the most out of your attachments and daily work.
| Topic | Details |
|---|---|
| Claimed PTO Horsepower | 72.7 hp (54.2 kW) |
| PTO Type | Independent |
| PTO Shaft Compatibility | Standard rear PTO shaft |
| PTO Speeds | 540 rpm, 1,000 rpm |
Claimed PTO Horsepower
The AGCO Allis 5680 provides a claimed PTO horsepower of 72.7 hp (54.2 kW).
This level of PTO power is important when running implements like rotary mowers, balers, or augers. With about 73 PTO horsepower available, you can operate demanding equipment without overworking the tractor’s engine.
If you are using the PTO shaft for heavier or high-draw tools, the near-73 horsepower is enough for most medium-sized implements found on farms or small operations.
PTO Type (Independent / Live / Economy)
You get an independent PTO system on the AGCO Allis 5680. This means the PTO operates separately from the tractor’s main transmission and movement.
With an independent PTO, you can engage or disengage the implement regardless of the tractor’s motion. This design makes it easier and safer to start or stop PTO-powered equipment.
You don’t need to stop the tractor just to control the PTO shaft. This also allows you to quickly adjust to changing situations in the field.
When you want steady control over powered implements like tillers or post-hole diggers, independent PTO systems provide practical convenience and flexibility.
PTO Speeds (540 / 1 000 rpm)
The AGCO Allis 5680 supports two standard rear PTO speeds: 540 and 1,000 rpm.
This dual-speed setup lets you use a wide variety of attachments. Some implements, like manure spreaders or smaller mowers, require the 540 rpm setting.
Heavier or more power-hungry tools, such as for large balers or tillers, often need 1,000 rpm. A simple selector lets you switch between PTO shaft speeds depending on the implement’s needs.
This flexibility is useful for farmers and operators handling multiple jobs throughout the season.
Transmission & Drivetrain
The AGCO Allis 5680 comes with features that let you choose between different transmission types and drive options. Its drivetrain is made to provide reliable performance, smooth shifting, and solid traction on different terrains.
Transmission Type (Syncro, Powershift, CVT, HST)
The AGCO Allis 5680 is fitted with a standard synchromesh transmission system. This design allows you to shift gears more smoothly because the gears can synchronize speeds before they engage.
A synchromesh transmission is helpful if you need to change speeds often while operating your tractor on the field. This type of transmission is common in utility tractors because it is durable and easy to repair.
You won’t find powershift, CVT (continuously variable transmission), or HST (hydrostatic transmission) options with this model. Most users find the synchromesh both familiar and reliable for different types of farm work.
It gives you manual control, which is helpful for tasks that need precise speed adjustments.
Number of Gears / Ranges
The tractor offers two different gear options. You can choose between a 12-speed or a 16-speed transmission.
Each option changes the number of forward and reverse gears available to you.
- 12-speed transmission: Typically provides 8 forward and 4 reverse gears.
- 16-speed transmission: Offers 12 forward and 4 reverse gears.
More gears give you greater control over speed and torque. This comes in handy when working with different implements or changing ground conditions.
The gear layout is made to help you easily match engine power to job needs. You can select the number of speeds that fit your work style, whether you want more steps for fine control or a simpler setup for general tasks.
Top Transport Speed
The AGCO Allis 5680 is designed to travel efficiently between fields or worksites. Its top transport speed typically reaches up to about 18-20 miles per hour (29-32 km/h), depending on your transmission configuration and tire size.
This speed is enough for most short-distance road travel. It helps you save time when moving equipment from field to field.
Make sure to check your specific model’s manual for the exact top speed, as slight differences can exist based on tire choices and gear selection. Traveling at this speed, you can still maintain stability and control, thanks to the solid frame and drive components.
Drive (2WD / 4WD / AWD)
You can find the AGCO Allis 5680 in both 2WD (two-wheel drive) and 4WD (four-wheel drive) versions. The 2WD model is typical for lighter field tasks and flat terrain, giving you good fuel efficiency and simple maintenance.
The 4WD option provides added traction and pulling power, especially if you work on hilly land or in muddy conditions. Four-wheel drive improves stability and keeps you from getting stuck when working with heavy implements or hauling loads.
Your drive choice will depend on your field needs. Both versions are built for durability, but the 4WD model has more parts in the front axle to handle extra force.
Differential-Lock & Final Drives
The AGCO Allis 5680 features a mechanical differential-lock, which helps you prevent wheel slip. If one wheel loses grip, engaging the differential lock lets power transfer evenly to both wheels for better traction.
This feature is simple to operate, usually with a foot pedal or lever. Use it when you are in tough soil or move heavy loads.
Once you’re clear of soft ground, you can release it to return to normal operation. Final drives on this tractor are built robustly to handle the engine’s 80 horsepower output.
These rear axle assemblies are designed for efficiency, long life, and to withstand the loads typical in utility tractor work.
Transmission & Drivetrain Table
| Feature | Details |
|---|---|
| Transmission Type | Synchromesh |
| Gears/Ranges | 12-speed (8F/4R) or 16-speed (12F/4R) |
| Top Transport Speed | 18-20 mph (29-32 km/h) |
| Drive Options | 2WD and 4WD |
| Differential-Lock | Mechanical, foot or lever engaged |
| Final Drives | Heavy-duty rear axles designed for durability and high load capacity |
Steering & Brakes
The AGCO Allis 5680 tractor uses power-assisted steering and heavy-duty hydraulic wet disc brakes. These systems help you operate the tractor with more comfort and safety during both field and road use.
Steering System (Hydrostatic / Power-Assisted / Mechanical)
You get power steering with the AGCO Allis 5680. The system is hydraulic, so the steering feels light, even with heavy implements attached or on rough terrain.
This makes it easier to work for longer periods without getting tired. You don’t have to fight the wheel, and quick turns are easier.
The design reduces operator fatigue and improves control, especially in tight spaces or when using loaders. Routine maintenance usually includes checking fluid levels in the hydraulic system.
If your steering gets heavy, it may be due to low hydraulic fluid or air in the lines.
Turning Radius (with brakes)
The turning radius on the 5680 is designed for efficiency in small fields or tight work areas. With individual brake use, you can make sharper turns.
The brakes allow you to lock one rear wheel, pivoting the tractor more tightly than with steering alone. This feature is especially helpful when you need to line up precisely with rows or navigate corners at the headlands.
You can expect a smaller turning radius compared to tractors that do not offer this setup. This makes the AGCO Allis 5680 suitable for a wide range of field layouts and loader work.
Service Brakes (Wet Disc, Dry Drum, etc.)
The 5680 is fitted with hydraulic wet disc brakes. These brakes operate smoothly and offer consistent stopping power, even under heavy loads.
Wet disc brakes are known for lasting longer than dry drum or dry disc types because they run in oil, which reduces wear. This gives you more reliability and less brake maintenance over time.
Each rear wheel is equipped with its own set of wet discs for extra safety. The brakes are responsive and don’t fade easily, even after repeated use or when going downhill with a trailer.
Parking Brake Type
The parking brake system on the AGCO Allis 5680 is designed to hold the tractor securely on slopes or flat ground. The parking brake typically uses a mechanical lock on the rear wet disc brake system.
This means you pull a lever, and it mechanically engages the brakes. The linkage is straightforward and rarely fails if kept clean and serviced.
Proper use of the parking brake is necessary when you park on an incline or leave the tractor unattended. This keeps both you and your equipment safe from accidental rolling.
| Feature | AGCO Allis 5680 Details | Key Points |
|---|---|---|
| Steering System | Power-assisted hydraulic steering | Reduces effort, good control, less fatigue |
| Turning Radius | Tight turns with brake-assisted turning | Useful in confined areas, sharper maneuvers |
| Service Brakes | Hydraulic wet disc brakes | Long life, reliable stopping, low maintenance |
| Parking Brake | Mechanical lock on wet disc brakes | Secure hold, simple operation |
Cab & Operator Station
The AGCO Allis 5680 offers a comfortable and efficient workspace for long hours in the field. Features prioritize operator safety, control, and comfort to help you handle tough jobs with ease.
| Feature | Details |
|---|---|
| ROPS / Cab Option | ROPS standard, optional fully enclosed cab |
| Climate Control | Options for A/C, heater, cabin filtration |
| Seat & Suspension | Adjustable suspension seat, ergonomic controls, armrests |
| Noise Level | Moderate sound levels, standard insulation, approx. 80-85 dB(A) at ear |
ROPS / Cab Option
You can choose from two main operator station configurations on this tractor. The standard setup includes a ROPS (Roll-Over Protective Structure) that ensures basic safety.
This open station is best for jobs where visibility and quick entry or exit are important. An optional fully enclosed cab is also available.
The cab is built with strong framing and glass panels to help protect you from the elements, dust, and debris. Doors are wide and latch securely.
Visibility remains good, even while providing extra protection and security. Handrails and steps are placed for easy and safe access to the operator station.
If you work in locations with high temperature or cold, the enclosed cab is a strong advantage.
Climate Control (A/C, Heater, Filter)
Inside the cab, you usually get heating and air conditioning systems as standard or optional features, depending on the market and year. The A/C unit keeps the air cool and removes humidity, making work much more comfortable during summer.
A strong heater provides warmth during cold months and helps defrost windows quickly. Air flow is controlled with adjustable vents placed around the steering column and sides of the cab.
Some models come with at least a basic cabin air filtration system. This filter reduces dust and pollen entering the cab through the intake vents.
Controls for temperature, fan speed, and vent direction are simple and easy to reach.
Seat & Suspension
You find a suspension seat in the AGCO Allis 5680 that adjusts for your comfort and weight. The seat can be moved forward, backward, and up or down to suit different body sizes.
Armrests and back support keep you comfortable during long periods of use. A soft, padded seat covering reduces fatigue.
Some versions offer a mechanical or basic air suspension system to cushion bumps when working on rough ground. The controls for lifting, shifting, and power take-off are positioned close to the seat and within easy reach.
Extra legroom, non-slip flooring, and a low step-up height make it more comfortable to enter and work from the cab or ROPS station.
Noise Level (dB A @ operator ear)
The AGCO Allis 5680 is designed to keep noise levels at a moderate range for its class. When doors and windows are closed, the enclosed cab usually keeps the noise at about 80-85 dB(A) at the operator’s ear when running at high engine speed.
If you are using the ROPS open station, noise levels will be higher because there is no insulation. The cab design uses sealing strips and insulation panels to lower sound, which helps with hearing protection and reduces fatigue.
To further reduce noise, you can use hearing protection or install aftermarket insulation kits if needed. Control panels and materials are built to prevent rattles and extra vibrations.
Hydraulics
The AGCO Allis 5680 is equipped with a reliable hydraulic system built for everyday farm tasks. You get practical power and useful features to handle loaders, implements, and steering with confidence.
System Type (Open-Center / Closed-Center / PFC)
The AGCO Allis 5680 uses an open-center hydraulic system. In this type of system, hydraulic fluid constantly circulates through the pump and back to the reservoir when no function is being used.
With an open-center system, the controls are simple and maintenance is straightforward. You don’t need to deal with advanced electronics or complex priority flow controls.
This makes repairs and upkeep more affordable and easier to manage for most users. Open-center systems are common in utility tractors and provide constant flow at a set pressure.
This setup is reliable for running implements like loaders, mowers, and rakes. While it’s not as advanced as a closed-center or pressure-and-flow-compensated (PFC) system, it matches the needs of this class of tractor.
Implement Pump Flow (L min⁻¹)
The hydraulic pump on the AGCO Allis 5680 delivers sufficient oil flow for a variety of implements. The common pump flow specification for this model is about 44 L/min (11.6 gallons per minute).
This pump capacity gives you steady power for operating cylinders on loader attachments, rear implements, and other equipment needing hydraulic force. If you plan to run tools like a grapple or a backhoe, this flow rate is well-suited for lifting and actuating most mid-size implements.
Hydraulic pump flow rates affect how quickly your implements respond. If you require smooth and consistent performance from your loaders or hydraulic-powered attachments, the available flow in the AGCO Allis 5680 supports these common farm needs.
Steering Pump Flow (if separate)
On the AGCO Allis 5680, the steering and implement hydraulics typically share the same open-center system. There isn’t a separate dedicated steering pump.
When you turn the steering wheel, the hydraulic system sends flow to the steering cylinder, while other functions may experience a slight drop in speed. For most farm tasks, you won’t notice a major delay, but if you’re running multiple hydraulic functions at once, performance could be affected.
Steering response is consistent for normal use. If your operation requires heavy simultaneous use of steering and hydraulic implements, it’s useful to be aware that flow is shared between all functions in this system.
Total Combined Flow
The total hydraulic flow on the AGCO Allis 5680 depends on whether all outputs are used at once. In practical terms, you get up to 44 L/min (11.6 gpm) combined, as the open-center system’s pump supplies all hydraulically powered features.
This combined flow covers both steering and implement controls, so the total output is split as needed. Hydraulic tasks like raising a loader or operating multi-function remote valves pull from this maximum combined output.
When you use multiple hydraulic features together, you may notice a slight reduction in speed as pump flow is shared.
System Pressure (bar / psi)
The AGCO Allis 5680’s hydraulic system is rated for a maximum pressure of approximately 180 bar (2,600 psi). This system pressure dictates the pushing and lifting power available for hydraulic cylinders, loaders, and implement features.
With 180 bar of pressure, you get solid lifting power for most standard implements in this horsepower range. The pressure setting is a balance between giving you enough force for heavy jobs and preserving long-term system durability.
If you work with heavy attachments or need strong loader lift capacity, this pressure rating ensures adequate muscle for the job. It’s well-matched to the needs of general farming, hay, or light construction work.
Remote Valves (number & type)
The AGCO Allis 5680 typically comes equipped with two rear remote hydraulic valves as standard. These valves control separate hydraulic functions, such as rear implements, loader arms, or hydraulic-top links.
The valves on this tractor are double-acting. This means you can move hydraulic cylinders both in and out, making them useful for a range of modern implements.
Some models offer options for a third remote if you need more hydraulic controls for complex tasks. The remote levers are located within easy reach in the operator’s station, allowing you to operate loader or rear hydraulics safely and efficiently.
If your operations require more than two rear remotes, check specific models or see if upgrades are available.
AGCO Allis 5680 Hydraulic System Overview
| Feature | Specification or Detail |
|---|---|
| System Type | Open-center |
| Implement Pump Flow | 44 L/min (11.6 gpm) |
| Steering Pump Flow | Not separate (shared with implements) |
| Total Combined Flow | 44 L/min (11.6 gpm) |
| System Pressure | 180 bar (2,600 psi) |
| Remote Valves | 2 standard, double-acting (expandable) |
Three-Point Hitch (3PH)
The AGCO Allis 5680 tractor comes equipped with a standard three-point hitch, allowing you to attach and use a wide range of implements. Knowing the hitch category, lift capacity, and available control options helps you select the right tools and get the best performance.
Hitch Category (1 / 1N / 2 / 3)
The AGCO Allis 5680 is fitted with a Category 2 three-point hitch. Category 2 hitches are designed for medium to large tractors, generally with horsepower ranging from 40 to 100 hp.
This matches the 80 hp output of the 5680, making it suitable for heavier implements like small plows, seeders, mowers, or rear blades designed for larger tasks. Category 2 hitches use lift pins and top link pins that are 1 inch in diameter, and the spacing between the lift arms is typically 32 inches.
These specifications are important when choosing new implements, as not all attachments are compatible across different hitch categories. You can sometimes find Category 1/2 combination hitches for broader compatibility, but the 5680’s standard setup is Cat 2.
Always check implement compatibility before attachment to avoid equipment damage and ensure safety.
Lift Capacity @ Ball Ends
The lift capacity at the ball ends on the AGCO Allis 5680 is designed to accommodate larger implements. Category 2 hitches on similar tractors typically have lift capacities around 4,000 to 5,000 pounds at the ball ends.
The exact lift capacity for the 5680 can vary based on model year and configuration. A higher lift capacity means you can attach heavier implements without risk of overloading the hitch or the tractor’s hydraulic system.
Always check your operator’s manual or the lift cylinder size for precise numbers. With 80 hp and a Cat 2 hitch, the 5680 can handle most medium to large field implements.
Check for any signs of wear or fatigue on the lift arms and ball ends before attaching heavy equipment. Proper maintenance ensures your hitch works smoothly and safely every time you use it.
Draft / Position Control
The AGCO Allis 5680’s three-point hitch includes both draft and position control systems. Position control lets you set and maintain the exact height of an attached implement.
This helps with tasks like mowing, where you want the implement at a consistent height for best results. Draft control automatically adjusts the hitch height in response to changes in soil resistance.
This is most useful when plowing, as it keeps the implement at a steady depth, reducing wheel slip and improving traction. Adjustments can be made from the operator station using levers on the right side of the seat.
For precision work or changing soil conditions, you may switch between position and draft modes. Make sure you understand how to use each mode for the job you’re doing.
Top-Link Sensing (Yes/No)
Top-link sensing refers to a feature that detects the forces on the hitch’s top link and helps provide even finer draft control. On the AGCO Allis 5680, there is no electronic top-link sensing system.
Instead, the draft control operates using mechanical sensing methods, which is common for tractors of this size and age. While electronic top-link sensing can offer faster response and more consistent draft control, many users find the mechanical system on the 5680 reliable for all typical farm work.
If you need more advanced draft sensitivity, aftermarket kits or electronic upgrades are sometimes available but not standard. Always inspect the top-link before hitching new implements.
Proper adjustment and maintenance of the top-link keep your three-point hitch stable and effective during heavy use.
| Feature | Specification / Details |
|---|---|
| Hitch Category | Category 2 (1″ lift pin diameter, 32″ arm spacing); best for medium and large implements |
| Lift Capacity @ Ball Ends | Approx. 4,000–5,000 lbs (refer to operator manual for exact figure); supports heavy-duty attachments |
| Draft / Position Control | Both available; position for height control, draft for automatic soil resistance adjustment |
| Top-Link Sensing | No electronic sensing; mechanical draft sensing only |
| Compatible Implements | Plows, seeders, large rotary mowers, rear blades, and other medium-to-large 3-point equipment |
| Maintenance Notes | Inspect lift arms, pins, and top-link for wear; follow regular lubrication and adjustment procedures |
Axles & Load Limits
The AGCO Allis 5680 tractor is engineered to handle demanding agricultural tasks by supporting significant axle loads and using a robust final-drive system. Understanding the weight limits for both axles and the type of final drive is important for equipment safety and performance.
| Feature | Specification/Detail | Importance |
|---|---|---|
| Max Front-Axle Load (kg) | 2,500–2,800 (estimate based on class standards) | Protects steering, supports loader or weight carrier. |
| Max Rear-Axle Load (kg) | 3,500–4,500 (estimate based on class standards) | Supports implements, trailers, and extra weight. |
| Final-Drive Type | Inboard planetary reduction | Durable, improves traction and load distribution. |
Maximum Front-Axle Load (kg)
The front axle of the AGCO Allis 5680 is designed to withstand heavy operational use. You can expect the maximum load capacity to be between 2,500 and 2,800 kg, which matches standard limits for tractors in the 80 horsepower range.
This load rating lets you use front-end attachments, such as loaders or weights, without overstressing the axle. Overloading the front axle can lead to steering problems and mechanical wear.
Always check your specific attachments to stay within these limits and maintain safe operation. Proper front-axle capacity is important if you drive on uneven ground or carry heavy tools.
Make sure to balance loads for stability, especially when using both front and rear implements.
Maximum Rear-Axle Load (kg)
The rear axle takes on most of the workload, especially when pulling implements or carrying mounted equipment. On the AGCO Allis 5680, the rear-axle load capacity typically falls between 3,500 and 4,500 kg.
This is suitable for handling plows, trailers, and other heavy tools common in fieldwork. Keeping within the rear-axle load limit is important to avoid damaging the axle housing and bearings.
Too much weight can affect traction, braking, and tire wear. Always account for both static weight and the extra force from moving or bouncing loads.
If you use ballast weights, make sure you do not go over this recommended rating. Always distribute loads evenly and use dual wheels or upgraded tires if your application is close to the maximum.
Final-Drive Type
The AGCO Allis 5680 uses an inboard planetary reduction final-drive system. This design places the planetary gears inside the axle housing, which helps spread the mechanical stress over a larger area.
It improves the ability to handle heavy loads and increases service life. Planetary final drives give you better efficiency for moving power to the wheels.
They are less likely to fail under the high torque demands of field operations. Maintenance needs are also lower due to fewer exposed components compared to older designs.
Be sure to monitor oil levels in the final-drive housing and watch for leaks, as clean lubrication is essential for proper gear function. This drive type provides smoother, more controlled movement, making your tractor safer and more durable under heavy use.
Tires & Track Options
The AGCO Allis 5680 tractor uses robust tires that deliver strong traction and stability for farming tasks. You can choose from several tire types and sizes to suit your work and ground conditions.
Track and flotation options are also available for improved performance on varied terrain.
Standard Front Tire Size (Ag / Turf / Industrial)
You will often find the AGCO Allis 5680 equipped with 7.50-18 agricultural (Ag) tires as standard on the front. These bias-ply Ag tires offer good grip in fields, making them suitable for plowing, seeding, and tillage.
Turf tire options, which are softer and wider, can be fitted for operations where you want to minimize ground disturbance, like on lawns or sod fields. Industrial tires are less common but are sometimes used if you work on mixed surfaces.
Front Tire Table:
| Type | Standard Size | Typical Use |
|---|---|---|
| Ag Tire | 7.50-18 | General fieldwork, tillage, plowing |
| Turf Tire | 27×10.50-15* | Grass, lawns, parks |
| Industrial | 10.00-16.5* | Construction, mixed ground |
*Sizes for turf and industrial tires can vary by dealer and supplier.
Standard Rear Tire Size
On the rear, the AGCO Allis 5680 is most commonly fitted with 16.9R34 Ag tires. These radial tires are wide and designed for efficient power transfer during heavy work like pulling implements or carrying loads.
The 16.9-inch width helps increase the surface area, lowering compaction while still ensuring good traction in most soil types.
Other rear tire types are also available. If you work frequently on turf or require less aggressive tread, you can request turf tires, which are wider and have gentler tread patterns.
Rear Tire Table:
| Type | Standard Size | Features |
|---|---|---|
| Ag Tire | 16.9R34 | Radial, strong grip, soil traction |
| Turf Tire | 21.5L-16.1* | Wide, shallow tread, low impact |
| Industrial | 16.9-24* | Thick, strong sidewalls |
*Not all size options are available in every region.
Optional Duals / Tracks / Flotation Kits
To further enhance performance, you have the option to fit dual wheels on the rear axle. Duals improve stability, reduce soil compaction, and increase traction when working in muddy or loose soils.
Some owners choose custom flotation kits, which include extremely wide tires designed to spread the tractor’s weight over a much larger area, protecting delicate ground surfaces.
For very demanding or specialized work, some aftermarket suppliers produce track conversion kits. Tracks are not a factory option but can be installed later for better floatation and traction in wet or sandy areas.
Track systems cost more and require adjustment but might benefit you if soil rutting and traction loss are frequent issues.
Options Table:
| Option | Purpose | Availability |
|---|---|---|
| Rear Dual Wheels | Extra stability/traction | Dealer-installed |
| Flotation Tire Kits | Reduced soil compaction | Aftermarket/dealer |
| Track Conversion Kits | Maximum floatation/traction | Aftermarket only |
Dimensions & Weight
The AGCO Allis 5680 tractor is designed with careful attention to size and weight. These measurements affect how it handles, fits in barns, and works in different conditions.
Wheelbase
The wheelbase of the AGCO Allis 5680 is 92.9 inches (235 cm) for the 2WD (two-wheel-drive) model. If you have the 4WD (four-wheel-drive) version, the wheelbase is slightly shorter at 91.3 inches (231 cm).
The wheelbase is the distance between the center of the front and rear wheels. This measurement directly affects the turning radius and overall stability of your tractor, especially on uneven ground.
A moderate wheelbase like this strikes a balance between tight maneuverability and steady handling. For operations that require frequent turning, like loader work or field cultivation, the wheelbase helps provide stability without making the tractor bulky.
Overall Length
The overall length of the AGCO Allis 5680 with 4WD is 157.1 inches (399 cm). This length is measured from the very front to the very back of the tractor, including the rear hitch or other standard attachments.
Knowing the length helps you plan for storage and transport. Most flatbed trailers can carry this machine, and the length also makes it less likely to nose-dive during heavy loading or field work.
Overall Width (Minimum Tread)
The minimum overall width for the AGCO Allis 5680 is about 76.4 inches (194 cm). This width is based on the narrowest tread setting, or the closest position that the rear wheels can be set.
You will find the width important for fitting through gates, narrow paths, and between rows of crops. Adjusting the tread width allows you to work on different row crops or pass through tight spaces when needed.
Height To ROPS / Cab
The maximum height of the AGCO Allis 5680 to the top of the ROPS (Roll Over Protective Structure) or cab is 99.6 inches (252 cm). If your machine has a cab, the measurement is to the roof.
This height is critical when you need to drive into low buildings or storage sheds. The ROPS structure adds safety, helping protect you in case of a rollover, while still keeping the machine within a practical height for most farm environments.
Ground Clearance
Ground clearance for the AGCO Allis 5680 depends on the tire size and model but is generally adequate for field use and rough ground. While a specific number isn’t always listed, it typically ranges from about 16 to 18 inches (approx. 40 to 46 cm) for similar tractors in this power class.
This clearance lets you drive over small obstacles without damaging the undercarriage or getting stuck. On hilly or uneven ground, enough clearance is important to prevent the frame or driveline from dragging.
Shipping Weight
The shipping weight of the AGCO Allis 5680 is 6,000 pounds (2,721 kg). This is the weight of the tractor as delivered from the factory, with standard equipment but without operating fluids like fuel, engine oil, or coolant.
Shipping weight is a key number for transport companies. If you plan to move the tractor on a trailer, knowing the shipping weight helps you select the correct hauling equipment.
Operating Weight (With Fluids)
Operating weight includes all standard fluids, such as fuel, engine oil, transmission fluid, and coolant. For the AGCO Allis 5680, the operating weight is a bit higher than shipping weight, commonly reaching about 6,400 to 6,800 pounds (2,903 to 3,084 kg), depending on tire choice and optional equipment.
The added weight from fluids and options like ballast or loaders affects traction, fuel consumption, and soil compaction. It’s important to know this number for proper matching with implements and for ensuring you don’t overload trailers or sheds.
AGCO Allis 5680 Dimensions & Weight Table
| Specification | 2WD / 4WD | Measurement |
|---|---|---|
| Wheelbase | 2WD | 92.9 in (235 cm) |
| 4WD | 91.3 in (231 cm) | |
| Overall Length | 4WD | 157.1 in (399 cm) |
| Overall Width (Min Tread) | All | 76.4 in (194 cm) |
| Height to ROPS/Cab | All | 99.6 in (252 cm) |
| Ground Clearance | All (approximate) | 16–18 in (40–46 cm) |
| Shipping Weight | All | 6,000 lbs (2,721 kg) |
| Operating Weight (With Fluids) | All | 6,400–6,800 lbs (2,903–3,084 kg) |
Fuel & Fluids
The AGCO Allis 5680 tractor requires careful selection and management of all operating fluids. Attention to correct capacities, types, and maintenance schedules helps support peak performance and reliability.
Fuel-Tank Capacity
Your AGCO Allis 5680 comes equipped with a 21-gallon (79.5 liters) diesel fuel tank. This substantial capacity allows for long workdays in the field without frequent refueling stops.
The tank is designed for off-road diesel fuel only—using proper diesel ensures peak engine efficiency and reduces the risk of contamination or premature wear. It is best to keep the tank at least half full, especially in cold weather.
Condensation can develop if the fuel level drops too low, leading to possible water contamination in the fuel system. Routine checks for debris or water in the fuel tank are recommended.
When refueling, always use clean containers and filter the fuel if possible. Contaminated fuel can cause injector problems and blockages.
Remember to regularly inspect the fuel cap and vent for damage or obstructions to prevent dirt from entering the tank.
Table: Key Fuel Requirements
| Fluid Type | Capacity | Tips | Recommended Fuel Type |
|---|---|---|---|
| Diesel Fuel | 21 gal / 79.5 L | Keep above half in cold temps | Off-road #2 Diesel |
DEF-Tank Capacity (If Applicable)
The AGCO Allis 5680 does not use a DEF (Diesel Exhaust Fluid) system. This tractor was manufactured before DEF technology became common in agricultural equipment compliance with newer emissions standards.
There are no DEF tanks or systems to fill or maintain. This can simplify general maintenance and daily operating checks.
If you operate other tractors with DEF systems, remember that the 5680 does not share this requirement. Only focus on diesel fuel and standard engine fluids for this specific model.
Table: DEF Requirement
| Fluid Type | Capacity / Notation | Maintenance Needed | Notes |
|---|---|---|---|
| Diesel Exhaust Fluid | Not applicable / None | None | Tractor does not use DEF |
Engine Oil Capacity
The engine in your AGCO Allis 5680 needs the right amount and type of oil to ensure lasting performance. It is powered by an SLH 4.0L 4-cylinder diesel engine.
The standard oil capacity for this engine is about 11.6 quarts (11 liters). You should use SAE 15W-40 diesel engine oil that meets current API service classifications.
Always check the oil level when the engine is cool and on level ground. Low oil levels can cause serious engine wear, while overfilling can increase oil consumption and foaming.
It is important to replace the oil filter during each oil change. Follow the service interval suggested in your manual, or roughly every 100-150 hours of operation, depending on your working conditions.
Always use a clean funnel and drain pan when servicing the oil to prevent contamination.
Table: Engine Oil
| Fluid Type | Capacity | Oil Specification | Change Interval |
|---|---|---|---|
| Engine Oil | 11.6 qt / 11 L | SAE 15W-40 Diesel | Every 100-150 hrs or as needed |
Hydraulic/Transmission Oil Capacity
The hydraulic and transmission system on the AGCO Allis 5680 uses a shared reservoir and typically requires Hy-Tran fluid or equivalent Universal Tractor Transmission Oil (UTTO).
The system’s total capacity is approximately 14 gallons (53 liters). Check the oil level with the engine off and the tractor on level ground.
Cleanliness is crucial—always wipe filler caps and surrounding areas before removing them to avoid introducing dirt. Replace the hydraulic filter as recommended and monitor for any signs of leaking lines or fittings.
Use only the type of hydraulic/transmission fluid specified by the manufacturer. Mixing fluid types or using the wrong viscosity can harm hydraulic performance and lead to costly repairs.
Drain and refill intervals often run every 400-600 hours, but always follow your manual’s guidance.
Table: Hydraulic/Transmission Oil
| Fluid Type | Capacity | Specification | Change Interval | Notes |
|---|---|---|---|---|
| Hydraulic/Transmission Oil | 14 gal / 53 L | Hy-Tran/UTTO | Every 400-600 hours | Shared reservoir |
Electrical System
The AGCO Allis 5680 features a reliable electrical system that ensures dependable starting and steady operation in varying field conditions. By focusing on correct grounding, proper alternator function, and battery performance, you can expect consistent power delivery and fewer electrical problems.
Ground Type (Negative / Positive)
This tractor uses a negative ground system. The negative terminal of the battery is connected to the tractor chassis.
This design is standard for most modern tractors and vehicles. Using a negative ground helps protect electrical components and reduces the risk of accidental shorts.
You should always connect the battery terminals carefully. Connect the positive cable first, then the negative.
When disconnecting, always remove the negative cable before the positive. This will prevent sparks and minimize the risk of electrical shock or damage.
With a negative ground system, all accessories and electrical attachments need to match this setup. Installing equipment designed for a positive ground can lead to shorts or failures.
Use proper battery cables, and inspect for corrosion around the ground connection, as a poor ground can cause starting issues.
Alternator / Charging System
The AGCO Allis 5680 is equipped with a modern alternator system. The alternator is responsible for converting engine power into electricity, which charges the battery and powers electrical accessories.
This tractor’s alternator is usually a 12-volt, brush-type, internally regulated unit. The alternator is mounted to the engine and driven by a belt.
It provides a steady supply of electricity when the engine is running. Maintaining tight, intact belts is necessary for proper alternator operation.
You should check alternator connections regularly for signs of wear or corrosion. An underperforming alternator can cause battery drain, weak lights, or difficulty starting.
If the alternator warning light comes on, test the charging voltage with a voltmeter. This will confirm if the alternator is supplying enough current to the system.
Charging Output (Amps)
The standard alternator on the AGCO Allis 5680 typically delivers around 55 to 65 amps of charging output. This amount is enough to keep the battery fully charged during normal tractor use.
It also handles the power needs of lights, controls, and other electric components. If you install extra accessories, like additional lighting or monitors, make sure the alternator’s output is sufficient.
High current demands can sometimes exceed the standard alternator’s capacity. Signs of insufficient output are dimming lights or a slow-to-charge battery.
Routine alternator checks should include measuring current output under normal load. If you need more output, you may upgrade to a higher-capacity alternator compatible with your tractor’s mounting brackets and wiring.
Battery Voltage
Your AGCO Allis 5680 uses a 12-volt battery system. The 12-volt system is standard for utility tractors and supports both starting and accessory functions.
The battery serves as the main source of electrical power when starting the engine, and it also stabilizes the voltage during operation. To prevent electrical problems, use only a 12-volt battery with the correct specifications.
Using a lower or higher voltage battery can damage your tractor’s electronics. Regularly check for proper terminal connections, as loose or corroded terminals can prevent the tractor from starting.
Checking with a voltmeter, a fully charged battery should read at least 12.6 volts with the engine off. If the voltage drops below 12.2 volts, consider recharging or replacing the battery.
Low voltage can lead to poor starting or electrical issues.
Battery CCA Rating
The Cold Cranking Amps (CCA) rating for the AGCO Allis 5680’s battery is important for reliable starts, especially in cold weather. A typical battery for this tractor should have a CCA rating between 600 and 800 amps.
This rating ensures enough power to spin the diesel engine over quickly, even when temperatures are low. A battery with too low a CCA might not start the engine in cold conditions.
If you operate in a very cold climate, consider a battery with a higher CCA. Always choose a battery with at least the minimum recommended CCA to avoid starting trouble.
You should test the battery’s CCA rating with a suitable battery tester once per season or before winter. Batteries can lose cranking power over time.
Replace the battery if it no longer meets minimum CCA requirements, as weak batteries can stress your starter and alternator.
| Feature | Specification / Detail | Notes |
|---|---|---|
| Ground Type | Negative Ground | Standard for modern tractors. Connect negative terminal to chassis. |
| Alternator System | Internally Regulated, Belt-Driven Alternator | Delivers stable charging; regular belt and wiring checks needed. |
| Charging Output (Amps) | 55–65 Amps | Supports lights and controls. May need upgrading for added electrical loads. |
| Battery Voltage | 12 Volts | Maintain good terminal connections to prevent starting problems. |
| Battery CCA Rating | 600–800 Cold Cranking Amps (CCA) | Higher CCA for cold climates; ensures reliable engine start. |
Total Cost Of Ownership Metrics
Understanding the total cost of owning an AGCO Allis 5680 tractor means looking at maintenance needs, yearly expenses, how quickly value decreases, and how much fuel you will use during tough jobs. Each of these factors can affect your budget and long-term tractor investment.
| Metric | Key Details |
|---|---|
| Service Intervals | 250-500 hours or annually for most major tasks |
| Annual Maintenance Cost | $1,000–$2,000 (routine) |
| Depreciation Curve | 7–10% per year after first 3 years |
| Fuel Consumption @ Rated Load | 10–13 liters per hour |
Recommended Service Intervals
For the AGCO Allis 5680, follow a 250-hour oil and filter change schedule to keep your engine healthy. Hydraulic fluid and filter should be checked every 500 hours.
Air filters may need cleaning or replacement every 300 hours, especially if you use the tractor in dusty places. You should inspect the coolant and change it every 1,000 hours or every two years, whichever comes first.
Greasing moving parts, such as the loader arm and steering, should be done every 50–100 hours. Keeping up with these intervals helps avoid breakdowns and extends the tractor’s working life.
If your operation is heavy duty or conditions are harsh, reduce these intervals and check systems more often.
Estimated Annual Maintenance Cost
Routine maintenance for the AGCO Allis 5680 usually runs between $1,000 and $2,000 per year. This figure takes into account oil changes, filter replacements, hydraulic fluid, and minor repairs.
Basic consumables are the largest portion of cost, so using quality parts without overspending on branded items can keep costs in check. Unexpected repairs, like pump replacements or electrical fixes, may increase annual costs.
Tires, batteries, and seat repairs should also be factored in. If you rely on dealership service, labor can bring annual costs toward the higher end of this range.
Depreciation Curve (% Per Year)
New AGCO Allis 5680 tractors lose value fastest in the first three years. Depreciation rates start around 15–20% per year early on, but after that, the yearly rate slows to about 7–10% per year as long as you keep your tractor in good working condition.
After about 10 years, depreciation levels out, and the tractor keeps much of its value if routinely serviced. Good care, proper storage, and regular maintenance have a direct effect on long-term resale value.
Poor recordkeeping or skipped maintenance can make your tractor’s value drop faster.
Fuel Consumption @ Rated Load (L Hr⁻¹)
At full power under load, the AGCO Allis 5680 uses 10–13 liters of diesel per hour.
Fuel use depends on engine health, field conditions, and how much weight the tractor pulls.
Lighter tasks or efficient driving can bring consumption closer to the lower end.
Clean filters, healthy injectors, and proper tire inflation help reduce fuel use.
Routine checks prevent extra fuel spending from overlooked mechanical problems.
Fuel is one of the biggest ongoing costs.
Tracking your actual consumption during busy seasons can make budget planning more accurate.