MF 7400 Series Tractors. Product Information Guide

Transcription

1 MF 7400 Series Tractors Product Information Guide

2 TABLE OF CONTENTS INTRODUCTION General FEATURES AND BENEFITS Engine Transmission Frames and Axles Point hitch / PTO / Drawbar Hydraulics Electrical Display Operator Environment Serviceability Tires and Ballasting SPECIFICATIONS I

3 FEATURES AND BENEFITS MASSEY FERGUSON 7400 SERIES GENERAL The Massey Ferguson 7400 Series tractor line features a variety of horsepower and the Dyna-VT. This series features the latest in tractor innovation and technology. The 7400 series builds on the reliability and power of previous models. The revolutionary Dyna-VT transmission, AGCO SISU Power engine, quiet cab, and industry leading technology combine to create a powerful package that is second to none. Every step has been taken to make the 7400 series tractor more efficient and productive to meet the demands of today s professional producers. The Tier III compliant engines, single piece lifting hoods, and revolutionary Dynamic Tractor Management (DTM) continue the tradition of innovation, productivity, and performance

4 ENGINE The Massey Ferguson 7400 Series utilizes the 66 CTA and 74 CTA AGCO SISU Power engines. These engines combine tough components with unique design to create power and reliability throughout the life of the tractor. Operators can count on the reliability seen in the AGCO SISU Power engines. Bosch fuel systems provide the fuel for these high-efficiency engines. The 66 CTA and 74 CTA are Tier III compliant and use the latest Common Rail (CR) technology for power and emissions. Combined with the Electronic Engine Management (EEM), these engines have become a benchmark for agricultural equipment. MODEL PTO Horsepower ENGINE 66 CTA AGCO SISU Power 6.6L 120 ISO ENGINE Horsepower ASPIRATION INJECTION Turbo Charged and Inter- Cooled Electronic Bosch CTA AGCO SISU Power 6.6L 135 Turbo Charged and Inter- Cooled Electronic Bosch CTA AGCO SISU Power 6.6L 145 Turbo Charged and Inter- Cooled Electronic Bosch CTA AGCO SISU Power 6.6L 160 Turbo Charged and Inter- Cooled Electronic Bosch CTA AGCO SISU Power 6.6L 170 Turbo Charged and Inter- Cooled Electronic Bosch CTA AGCO SISU Power 6.6L 185 Turbo Charged and Inter- Cooled Electronic Bosch CTA AGCO SISU Power 7.4L 200 Turbo Charged and Inter- Cooled Electronic Bosch CTA AGCO SISU Power 7.4L 215 Turbo Charged and Inter- Cooled Electronic Bosch 7400 Series Tractors will still be equipped with Perkins engines until April

5 AGCO SISU Power ENGINES Select Massey Ferguson 7400 series tractors feature AGCO SISU Power diesel engines. These engines continue the quality and power that have become a highly-regarded feature in Massey Ferguson tractors. The engines are turbocharged, inter-cooled, and feature numerous improvements like reduced emissions, decreased noise level, and Electronic Engine Management 3 (EEM3), which is the most advanced EEM to date. The new Citius series engines are Tier III compliant and feature high pressure Common Rail (CR) fuel injection and 4- valve per cylinder heads for larger gains in torque coverage and engine response

6 Engine information Plate The engine information plate is attached to the right (warm) side of the engine near the starter. It contains information about the engine such as model, serial number, dyno horsepower, and the person or team by whom it was assembled. All AGCO SISU Power engines proudly display this feature. These plates ensure that the utmost care and quality went in to the assembly of the engine. Single-Piece Cast Iron Block The robust design of the block adds considerable strength to the engine allowing it to act as a major load bearing portion of the tractor. This reduces the need for an oversized side frame. The result is a tractor with a shorter turning radius. Two, 4-Valve Cylinder Heads Tier III engines feature two, 4-valve cast cylinder heads. The new 4-valve design improves gas exchange approximately 25% over the previous one piece design. The increased gas flow also reduces the pumping requirement, freeing up mechanical power. This design also provides an optimal location for injector placement, in the center of the head vertically above the cylinder. Results are lower emissions and improved fuel burn, which creates more power and less emissions

7 Cast Aluminum Valve Covers A cast aluminum valve cover protects the valve train from the outside environment. An o-ring seal keeps harmful dust out and precious oil in the engine. This design has had a long history of reliability and durability. Wet Cylinder Liners with Mid Supports AGCO SISU Power engines feature wet cylinder liners that are centrally supported and replaceable. By efficiently cooling the top end of each cylinder liner, engine heat is reduced, thus allowing greater power. The central support meanwhile reduces vibration by 75%. This reduces wear on the cylinders and cylinder liners, reducing blow-by, oil consumption, and engine noise by 5 db. Fractured Piston Rods The big end of the connecting rod is fracturesplit, making the rough-edged big end stronger and more durable. The connecting rod can be made 17% lighter, which reduces vibration and increases the durability of the engine. The rods are then connected by special torx bolts. Reduced rotating mass allows for faster engine rpm rise

8 Bosch CRIN2 Electronic Fuel Injector Tier III engines use the new, 8-hole, Bosch, solenoid controlled injectors. Each injector is capable of up to 5 different stages, where previous versions only had 1. Reduced noise levels are also a result of this improved precision. Bosh Rotary Fuel Pump The fuel pump used in common rail engines is a fuel lubricated, radial piston pump. The pump responds very quickly and precisely to throttle movements together with EEM3. Injection pressure capacity is very high. The pump provides the correct amount of fuel needed for the high-horsepower requirements. Stanadyne Fuel Filters and Feed Pump Two fuel filters are located on the cool side of the engine. The pre-filter filters to 30 microns and the main filter filters to 5 microns. Fuel is pumped through the filters at a rate up to 40/60 gal/hr (depending on engine model), more than enough to feed the fuel pump. This design is updated from the previous tier II engines. Using two filters increases the tractors ability to remove harmful debris from fuel before entering the engine, and allows for longer filter life, resulting in reduced maintenance costs

9 Common Rail (CR) Injection System Developed by Bosch for use only in AGCO SISU Power engines, fuel is pumped up to high pressure, over 22,000 PSI, in the rail. It is then released by the injectors into the cylinder as required for engine speed/power. This configuration offers more advanced timing of fuel flow. The EEM3 controls the opening, duration, and closing of the injectors for an even quicker response to changing tractor conditions. Electronic Engine Serial Number The electronic engine serial number stores the engine information (serial number, etc.). It also stores engine history for review by technicians. It stores things like load profile, hours, faults, service history, and injector wear counter. This works with the tractor s systems to notify the operator of some faults or assists the technician with needed repairs, reducing service time and increasing time in the field. Inlet Grid Heater Cold starts are assisted with an air intake grid heater. The cold air is heated as it passes by the electrically powered grid. This system is more effective than a glow plug system

10 Air Intake System The cassette style air cleaner is located at the front of the tractor inside the single-piece hood. The design allows greater airflow and can hold up to 20% more dust than canister type filters. The series of vortices at the bottom of the housing swirl the larger particles to the outside of the case where they are sucked out through the exhaust. The result is a more powerful, cleaner burning engine with great fuel consumption ratings. Electronic Engine Management 3 (EEM3) All 7400 Series tractors feature Electronic Engine Management 3 (EEM3). Developed as a proprietary system, it is the most advanced fuel injection system to date. The main components of the system are the fuel pump, common rail, injectors and ECU. With EEM3 these engines meet the stringent requirements of Tier III standards while improving performance and fuel consumption. Cooling System The expandable cooling system on the 7400 Series incorporates a radiator which has been pre-serviced with antifreeze to 30 F. The cooling system is made up of five coolers: transmission oil, hydraulic oil, radiator, intercooler and A/C condenser. This design aids in cleaning and has greater cooling capacity than previous designs. The simple design is easy to use with the single piece lifting hood

11 Viscous Fan Drive The Viscous Fan Drive houses an internal clutch which responds to engine temperature. As the engine temperature increases, the clutch engages and makes the fan spin faster. This increases total airflow through the radiator and provides increased cooling capacity. At low engine temperatures, the fan spins very little using almost no horsepower; that power is then available for other functions. Adjustable Preset Engine Speeds The EEM3 gives the operator complete control over the speed of the engine without ever touching the hand throttle. The EEM3 inputs allow the operator to set two preset engine speeds. Engine speeds can be adjusted in increments of 10 rpm. This enables the operator to select a predetermined engine speed at the push of a button. The EEM3 allows adjustment of engine speed independent of the hand throttle location. To determine the exact set engine speed, the Dot Matrix or GTA Console will always show the set A and B speeds

12 A-Post Exhaust The location of the exhaust on the 7400 Series helps to reduce interior cab noise, vibration, and obstruction of cab visibility

13 DYNA- VT TRANSMISSION Massey Ferguson 7400 Series tractors feature the Dyna-VT transmission. Since going into production in 1996, this CVT has been the world leader in Continuously Variable Transmissions (CVT). The Dyna-VT provides new levels of performance, productivity, and efficiency. It offers operators infinite ground speeds that are not dependent upon engine RPM. It uses a combination of hydraulic and mechanical power to efficiently transfer power to the ground. This design is not only the most efficient, its strength and reliability have been proven by over 100,000 units produced to date. Simplicity is key to new technology, and this design has only ONE electronic controller that can be manually overridden in case of an electronic failure. Operators quickly realize that the Dyna-VT is one of the most simple to operate. Additionally, the two speed ranges, two cruise speeds, and two forward reverse presets help operators become more productive throughout their day. Dyna-6 transmission will be available until April

14 Dyna-VT Variability The Dyna-VT fills in the speed gaps left by other transmissions. Speeds that cannot otherwise be obtained with a gear on gear transmission without altering the engine RPM can now be attained at any engine speed above 1200 RPM. To maximize production operators can throttle back and increase speed. Depending upon conditions, operators can cover more ground in less time at a lower engine RPM, saving costly fuel while seeing higher returns in productivity. This variability translates directly into higher productions levels at lower fuel costs. Single Electronic Actuator There is only one electronic controller on Dyna-VT transmissions. This simple design prevents operators from being stuck in case of an electronic failure, because the controller can be accessed through a door in the floor of the tractor. Then, the rod stored at the rear of the tractor, can be attached to the actuator and controlled manually. This design virtually eliminates the chances of leaving a tractor in the field. Dynamic Tractor Management Dynamic Tractor Management (DTM) allows the CVT to operate at maximum efficiency for a given ground speed. The operator simply dials in a specific ground speed and the transmission finds the optimum setting of power and fuel efficiency for that ground speed, by communicating with the engine. Using DTM allows the tractor to reduce fuel consumption at times when higher power is not required, boosting long-term productivity

15 Fewer Parts Time and experience has taught that bigger is not always better. Dyna-VT transmissions have fewer moving parts when compared to other transmissions. For instance, there are only 7 cut gears, which are always under a constant load, and do not receive the shock associated with powershift transmissions. The gears can then be made smaller, which reduces rotating weight, and makes the transmission more efficient on fuel and power transfer. This creates a product that has a longer life span, increased resale value, and less maintenance. cost. Pressure Lubricated Bearings Every bearing on the Dyna-VT is pressured lubricated. This allows for smaller components and more efficient power transfer. Because these bearings are pressure fed, the cooling is superior to other designs. The unit is able to withstand greater loads as heat is dissipated Separate Oil Reservoir One of the unique advantages of Dyna-VT transmissions is the use of a separate oil reservoir. The oil it houses is only used for the transmission and differential. The hydraulic tank is completely separate from the Dyna-VT. This isolates the oil in the system from the hydraulic remotes, all but eliminating potential contamination from outside sources. This feature also aids in cooling, which results in long transmission life, durability, and reliability

16 Simple Operation Controlling the Dyna-VT is quite simple. The Three Function Shuttle [A] can declutch, shuttle forward/reverse, or increase/ decrease speed, all with the left hand. The Right Hand Controller [B] can be used to increase or decrease speeds as needed. Simply push the lever in the direction of travel to increase and away from the direction of travel to decrease. The multiple options for operators makes these transmissions suitable to all jobs. A B Active Stop Active Stop allows the tractor to stop either forward or reverse travel by simply raising the shuttle lever [A] while in motion. The tractor will stay in place, even on a slope, until the shuttle lever is lowed back into place. Speed Ranges The Dyna-VT has two ranges in which to operate. The turtle (low) range provides speeds from 0 to 17 MPH (0-28kph). The rabbit (high) has speeds from 0 to 25 MPH (0-40kph). If the optional 31MPH transmission is selected, the high range simply increases to 31 MPH (50kph). These ranges provide a speed for every task. NOTE: While operating in draft or tillage applications, the Dyna-VT should ALWAYS be operated in the turtle (low) Range

17 Economy The Dyna-VT transmission provide a feature which allows the operator to save fuel during transport. The tractor can operate at a speed of up to 31 (optional) 1900 rpm making transport much more economical. This reduces fuel costs, and operating cycle times. It will also improve the life of the engine and decrease the amount of maintenance. Adjustable Cruise Speeds Cruise speeds The Dyna-VT has two adjustable cruise speeds in each range. The cruise speeds can be engaged, when the engine RPM is above 1100, by pressing the corresponding button on the right hand armrest. Slowing for a turn at a headland is much easier. Simply press the button that corresponds to the programmed slower speed, then once the turn is made, press the other button to activate the previous speed setting. Programmable Shuttle Speeds The programmable shuttle speeds provides a convenience in operation. Programming the forward and reverse shuttle speeds is effortless and quick. An operator can custom tailor the speeds for what ever works best in that particular application, such as loader work or silage packing. Forward & Reverse shuttle speeds 220-5

18 Foot Pedal Mode The foot pedal mode was designed to make delicate work, trouble-free. When engaged the tractor will operate much like a car. When the pedal is pressed the tractor responds by increasing the engine and ground speed. There are three different modes available: Power Mode, Economy Mode, and Forager Mode. Power Mode The power mode is used for maximum engine power for the selected ground speed, in this case 5 mph. Maximum engine speed is selected using the SV1 dial. Economy Mode Economy mode allows the selected ground speed at a reduced engine RPM. Engine speed is selected using the SV1 dial. Economy mode saves valuable fuel on jobs that require less power. Forager Mode Forager mode is most beneficial for PTO applications. When engaged, the engine can be set to a specific RPM, then the foot pedal is used to control the speed of the tractor. PTO driven implements can now maintain the proper RPM and the operator can vary the speed of the tractor according to conditions

19 Turbo Clutch The turbo clutch functions allows the operator to stop the tractor (with the engine BELOW 1250 RPM) using only the brakes. This feature provides precise control during loader work or attaching an implement. Engine Supervisor The engine supervisor allows operators to set the percentage of engine RPM loss allowed under heavy loads before the transmission adjusts the output ratio. This would be similar to downshifting in a powershift tractor, yet there is no power loss to the ground with the Dyna-VT. This feature can also be used in conjunction with PTO operated implements where maintaining engine speed is important. The engine supervisor further enhances the efficiency of CVT transmissions. Optional 31 MPH (50 KPH) Transmission The optional 31 MPH Dyna-VT adds to an already powerful package. The ability to transport the tractor and implements is increased 28% over the standard speed, allowing for more time in the field and performing other tasks. The suspended front axle is required with this option

20 FRAME AND AXLES The 7400 series tractors feature a tested, proven design on their rear differential, brakes, and final drives. The rear differential lock can be electro hydraulically engaged with the use of a rocker switch located on the right console to ensure a proper, smooth engagement. Coupled with the rear differential system, are the inboard rear planetary final drives. The final drives on Dyna-VT equipped tractors operate in heavy gear oil to ensure proper lubrication, reduce heat, and provide long wear life. This tractor series does not have a full frame, as all the major components are designed to be part of the tractor structure. Side rails are available for applications requiring the mounting of tanks or other components to the tractor, but they are not needed for loader applications. The 7400 series tractors have smooth progressive braking supplied by a wet, rear disc braking system. This system consists of ring pistons, brake discs, and steel backing plates. In addition, the brake discs are immersed in hydraulic oil to keep the discs lubricated and cool. Independent suspended pedals operate the individual turning brakes. For transport, the pedals can be latched together to provide equal braking effort to each wheel. Dual brake actuation will electro-hydraulically engage the PFA (Power Front Axle) clutch. Dyna-VT transmissions are also equipped with a Cardan brake, which supplies additional braking power on the PFA shaft. In addition, 7400 series tractors feature a parking brake as standard equipment. The park brake is engaged by a lever to the left of the seat

21 Rear Wet Disc Brakes Wet rear discs brakes provide smooth, progressive, fade free braking. The wet system keeps the discs cool during operation which maintains constant braking power and reduces fade. It also reduces wear to provide for a long service life and decreased maintenance. Automatic Four Wheel Braking When both brake pedals are pressed simultaneously, the PFA clutch will engage, having a four wheel braking effect. This effectively ties all four wheels together for greater breaking capacity. This feature increases operator safety when towing heavy loads. Front Axle Braking In addition to the auto four wheel braking, all Dyna-VT equipped tractors feature a Cardan brake on the front driveline. This additional brake pack raises the total number to 3 brake packs. This industry leading feature allow these tractors to stop greater loads with less effort, increasing safety and productivity

22 Park Brake The manual parking brake on 7400 series tractors operates independently of other tractor systems. This simple system provides a greater margin of safety, and is easy to use. An optional electronic park brake is now available. Differential Locks The differential locks on the 7400 series tractors are controlled by a convenient rocker switch located on the right console. This switch provides quick, convenient access for the operator to engage the differential locks when needed. When engaged all powered axles will distribute power equally to each wheel, increasing pulling ability. In PFA configurations, the front differential features a locking mechanism so operators enjoy a true 4wd tractor. This increased productivity, and reduces wheel slip

23 Bar Axles The 7400 series tractors are equipped with large diameter axles, and are available in long and short configurations. This size axle provides wider rear wheel tread width adjustments, and also provides extra space for dual wheel applications. Furthermore, the added strength of the larger axle provides improved adaptability for high torque field Rear Axle Reduction Units The rear axle reduction units for Dyna-VT tractors are an inboard style. The units also use gear oil for lubrication, that is separate from the transmission/differential, hydraulics, and each side. Using heavier oil provides greater lubrication, superior cooling, and great load capacities. Plus, having the fluid separate from other tractor components virtually eliminates the chance for cross-contamination and premature failure

24 Powered Front Axle 7400 series tractors are available factory installed with a Powered Front Axle (PFA). The front axle is matched for the horsepower and chassis size of each tractor model. A single piece of cast-iron makes up the center housing. Heavy outboard planetary housings with high load carrying capacities. A maximum front wheel turn angle of 55 degrees and axle oscillation of +/-11 maintains positive tire to ground contact. For additional strength and protection, all PFA equipped tractors feature a center line drive. The front axle drive engages on-the-go as needed, by use of a rocker switch on the right hand console. Single Center Pin Frame Mount This feature provides a single mounting point for the front axle. In addition to allowing a full range of motion, the single mount reduces maintenance time by having a single service point. Shielded Centerline Drive The shielded centerline drive allows for a reduction in the total number of universal joints in the drive system. This reduces maintenance time and potential wear points

25 55 Maximum Steering Angle A tight 55 steering angle allows the 7400 series to maintain a tight turning radius. This wide turning angle also allows the tractor greater maneuverability in tight spaces. Front Fenders Optional fixed or pivoting (shown) front fenders can be equipped. Front fenders deflect debris coming from the front tires and reduce the chances of the material coming in contact with the tractor cab or impacting other traffic during transport. It is recommended that you order fenders the same width or wider than the front tires

26 Suspended Front Axle Front axle suspension is an option to the PFA on 7400 series tractors. The key advantage of the front axle suspension system is the increased ground contact it provides by reducing wheel slip and power hop. When the tractor encounters rough terrain, the front axle will remain on the ground pulling the tractor rather than hopping and allowing the wheels to spin freely. In addition, the front suspension provides greater steering control and reduces fore and aft pitching when towing heavy loads. The simple design and ease of maintenance provides solid handling while increasing productivity. The front suspension system also provides a convenient on / off switch which allows the system to be disengaged during heavy loader and grading operations. In the off position, the hydraulic accumulators allow the hydraulic ram to lower and rest on the axle. When lowered on the axle, the system still maintains the full range motion of +/-11 oscillation

27 Front Suspension System (Optional) The optional front suspension system allows the tractor to keep the front tires in constant contact with the ground. This eliminates excess slippage and reduces both tire wear and damage to the front drive train. Additional benefits include more responsive steering, smoother ride at high speeds, and reduced load shocks. Front axle suspension is required for 31 MPH (50kph) configurations. Easy Disengagement Switch A convenient rocker switch allows the front suspension to be disengaged for certain operations, including heavy loader work and grading. In the off position, the hydraulic suspension ram lowers the system until it rests on the axle. The entire axle will still maintain the full range of oscillation. This feature allows tractors equipped with the suspension system to be used in the most demanding of applications

28 3 POINT HITCH, PTO, DRAWBAR The 7400 Series tractors feature an Electronic Lift Control (ELC) 3-point hitch. This ELC gives operators full control over the hitch for a variety of jobs. Active transport control is standard on ELC equipped tractors, and wheel slip control is standard on tractors equipped with radar. External lift controls are standard and located on each rear fender. An independent PTO comes standard with two shaft sizes, and 540 / 1000 RPM configurations. Controls are conveniently located in the cab and a fender mounted, external PTO stop is standard. A swinging drawbar is standard on all 7400 series tractors. It has three length positions for different tool applications

29 3-Point Hitch The hitches on the 7400 Series tractors will handle mounted implements such as planters, cultivators, rear blades, mowers and much more. The hitch can be bushed down to accept some smaller implements if needed. With high lift capacities, these tractors are well suited to mounted implements The 3-point hitches can be fitted with factory a factory quick hitch (not pictured) as an option. Adjustable Lift Arms The lift arms for the 3-point hitch are easily adjustable with built-in handles. Grease points are part of the arm for long service life. The large robust design is sure to fulfill any lifting requirements. Hitch Stabilizers The 3-point hitch utilizes adjustable screwtype stabilizers. There is a wide range of adjustment for most applications. This design is easy to use and requires little adjustment

30 Link Ends The lower link ends are extendable, with a category II ball ends on The ends drilled for category II or III implements on This design is simple, and reduces time involved with attaching heavy or awkward implements. 3-Point controls The lift/lower switch [A] for the hitch is located in the right armrest of the operators seat along with the depth control [B]. The armrest is attached to the seat for easy access by operators. The lift/lower switch [A] has three positions: lift, lower, and neutral, and must be cycled each time the tractor is started for the hitch to become active. The depth control dial [B] can be simply turned to the desired depth. A B External 3-Point controls All units come equipped with external lift controls fitted to the rear, outside portion of each fender. For safety, the lift/lower switch inside the cab must be in the neutral, or lower position. Operators can stand clear of the hitch and tires under most tire/wheel configurations. Convenience and safety were the two main goals in mind when designing these controls on the tractor

31 Electronic Lift Control The Electronic Lift Control (ELC) is located on the rear portion of the right console. Operation controls for the hitch are located in the armrest. These dial controls are familiar, and easy to learn and use. The controls allow quick customization for various tasks. ELC Functions The ELC contains many functions that operators will appreciate. Functions include: Lift height limit [A] controls where the hitch will stop when lifted. A B C Hitch response (Draft sensing) [B] controls the amount of response the tractor has to changing conditions when the hitch is lowered. Rate of drop [C] controls how fast the hitch lowers. Error indicator [D] will flash if there is some type of malfunction. When the tractor is first started, the light will remain on until the 3- point control is cycled. This is a safety feature preventing accidental lowering of the hitch. Active transport control [E] uses the lift rams to buffer the shock associated with the transport of large heavy hitch mounted implements. This feature is only active when the hitch control switch is in the raise position. Direction indicator [F] simply indicates the direction the hitch is moving. F E D 240-4

32 Power Take Off Independent, Power Take Off (PTO) is standard equipment on the 7400 Series tractors. The PTO is driven by a live shaft from the engine. A wet, multi-disc clutch engages and disengages the PTO output shaft. A safety switch is designed into the engagement system to prevent the engine from being started if the PTO is in the engaged position. Additionally, the 7400 Series tractors feature a convenient PTO cut-off switch on the outside of the tractor. This enables the operator quick access to disengage the PTO from the ground. All 7400 Series tractors feature dual speed, 540/1000 rpm PTO with an economy 540 rpm speed standard. A digital display of the PTO speed is provided in the dash mounted instrument panel. All 7400 Series tractors feature a bolt-on access flange that replaces the spring retainer clip. This provides greater strength during use under high loads. PTO Shafts Two PTO shafts are supplied with each new tractor. 21 Spline, 1000 rpm, 1 3/8 Shaft 6 Spline, 540 rpm, 1 3/8 Shaft For , changing the shaft is as simple as removing 6 hex nuts on the rear of the tractor and removing the shaft. No oil is lost during this process do not utilize this the flange type PTO shaft. Digital PTO Speed Display This display provides precise control of PTO driven implements. It allows the operator a quick reference point for exact PTO speeds. It also eliminates guess-work associated with matching PTO speeds to engine RPM. Finally, the speed display increases equipment accuracy and productivity

33 Ground Level PTO Disengage Switch This exterior switch provides safe, quick access to disengage the PTO clutch without climbing back in the cab. Also, the PTO can only be engaged from the operator cab. Drawbar with Clevis The drawbar on the 7400 Series features a durable clevis design. A hitch pin is included in the toolbox. The hitch also includes a hanger strap for attaching safety chains

34 Front Three-Point Linkage (Optional) The front linkage is controlled by the hydraulic valve controls. A simple gate valve can be turned at the rear of the tractor to switch between control of the front hitch and control of the rear remotes. The front 3-point linkage has two available lift capacities. The smaller lift requires that the tractor be fitted with the front belly weight. Hydraulic accumulators are also available to absorb shock during transport applications with front mounted implements. Factory loaders are compatible with the front 3-point linkage. Front PTO (Optional) Front PTO for 7400 series tractors is available factory installed. The front PTO is compatible with the front 3-point linkage. A front PTO and hitch make the series much more versatile. Factory loaders are compatible with the front PTO also. Front Hydraulic Remotes (Optional) Two sets of front hydraulic remotes are standard when a front hitch is ordered. They are controlled by the hydraulic valve controls. A simple gate valve can be turned at the rear of the tractor to switch between control of the front and rear remotes

35 HYDRAULICS The 7400 Series Massey Ferguson tractors feature a closed center, load sensing, pressure and flow compensated system with a maximum flow of 29-gpm. An optional 39 gpm load sensing system is also available. The 7400 Series tractors utilize a large, spin-on cartridge hydraulic oil filtration system. The spin on filter allows the operator to perform quick, easy maintenance of the hydraulic system. Also, system monitor lights on the cab console alert the operator when service is needed to the hydraulic system. Two hydraulic remotes, power beyond circuit, and a load sensing line are standard on the 7400 Series. Options are available for up to four mechanical lever remotes, two electrohydraulic remotes controlled by a RMS joystick in the armrest. The 7400 Series also features standard mechanical valves with float and detent locks

36 Hydraulic Pumps The axial piston pump is mounted externally on the transmission and driven through a collecting shaft. This pump supplies high pressure oil, 2900 PSI, for the remotes and 3-point hitch. Depending on tractor configurations one or two other pumps supply oil for functions such as steering, braking, ect. Separate Oil Reservoirs (CVT Only) The sump for the transmission is located in the transmission case and the sump for other hydraulics is located in the tank on the right side of the tractor. This eliminates the potential for cross-contamination in the transmission. Mechanical Valves Depending on model, all 7400 Series tractors are standard with two to four mechanical valves. The standard mechanical levers are located on the right console

37 Electronic Valves (Optional) Electronically controlled valves are optional and provide control to the remotes. Up to four electronically controlled valves can be equipped. If time and flow control over all valves is desired the tractor must be equipped with a Datatronics III Console I. Power Beyond The standard power beyond is equipped with 3 ports: pressure [A], return [B], and load sense [C]. These additional ports allow operators to supply the tractor s hydraulic flow and power to additional valves or other jobs. This standard feature is most valuable for operations that have multiple uses for tractors throughout the year. B A C Ergonomic Lever Layout The lever layout on the 7400 tractors places hydraulic controls in a convenient location where they can be easily reached by the operator. Ergonomic design helps to reduce operator fatigue and increase efficiency

38 RMS Joystick (Optional) The RMS (remote management system) is an option on the 7400 series. The system is comprised of a joystick mounted in the armrest which controls two electro-hydraulic proportional spool valves at the rear of the tractor. The system also incorporates a third function switch which allows the activation of a solenoid valve for functions such as the grapple fork on a front-end loader. The switch can be made active simply by adding a relay to the fuse panel. All wiring harnesses are already included in the tractor. Activation [A] & Memory [B] Buttons The optional electronic hydraulic system offers a memory feature [B] which allows operators to set proportional flow rates. This function memorizes the flow rate of the output and input of each spool valve controlling the flow of the hydraulic valves. For example, the finger tip system can be used to control the rate of drop on a hydraulically lifted implement, thus reducing potential damage to the axle and hydraulic ram mounts. B A 250-4

39 Roll Over Locks Each console mounted lever is equipped with rolling adjustable locks. Rolling lever locks provide quick easy operation of hydraulic remotes. This increases efficiency by freeing the operators hands for other functions. Dot Matrix Display All 7400 Series tractors are equipped with a standard Dot Matrix display screen [A] on the left-hand side of the dash. Touchpad controls [B] for the Dot Matrix screen are located on the right-hand steering console. A simple touch pad allows operators to scroll through the various screens and adjust the hydraulic functions. Hydraulic Priority The priority of hydraulic flow is adjusted and set as a percent basis using the appropriate Dot Matrix screen. Hydraulic flow can be set so that 100% of flow is diverted to the 3-point hitch first and then to the hydraulic valves, or vice versa. The Dot Matrix screen shot to the right is currently set so that 70% of hydraulic flow is diverted to the rear 3-point hitch and 30% of flow is diverted to the hydraulic valves when both are operated simultaneously

40 Joystick Time/Flow The optional joystick controls 2 electrohydraulic proportional spool valves. Time and flow of these two valves are easily adjusted using the appropriate Dot Matrix screen, if the GTA console is not equipped 250-6

41 ELECTRICAL SYSTEM The 7400 Series tractors feature a powerful electrical package capable of powering multiple monitors, lighting packages, and normal tractor functions. A serpentine-belt powered alternator charges the two batteries. The system is a perfect fit for a tractor known for it s power and reliability

42 Batteries This series Massey Ferguson tractor incorporates two 12 volt batteries on the right side of the tractor, just in front of the steps. They are covered by an easy to remove plastic cover for protection. This provides easy access for routine maintenance. Removal of the shield does not require tools. Main Power Disconnect Manual main power disconnect is standard and is located below the battery box. A removable key is used to activate the disconnect system. Powerful Charging 7400 series tractors are equipped with 120 amp alternator with an available 150 amp as an option (only 175 amp for the 7497 and 7499). This supplies power to operate all the lighting, air conditioning, and electrical features

43 Starter The 4 horsepower starter is more than adequate to start the engines of this series. It is also equipped with a jump point for convenience. 7 Terminal ASAE Rear Electrical Outlet The rear of the tractor incorporates a 7-pin terminal ASAE Rear Electrical Outlet. The outlet supplies power for lights on towed or mounted implements. A spring loaded cap covers the outlet when not in use. Fuse Box A conveniently located fuse box and quick release cover provide quick access to the interior fuse panel. The interior fuse panel is located behind the PTO speed selector panel on the right side of the operator

44 Auxiliary Power Supply Located in the lower right rear of the cab is a cigarette type power socket [A] which is 12 volt and a three spade [B] power plug for equipment monitor power supply. Both power supplies are fused through the tractors electrical system. Also located in the same position is the diagnostic plug [C] for service technicians. A C B Trailed Implement Control (TIC) The port to the right of the 7-pin trailer plug is for connecting pull-type implements equipped with TIC. TIC allows the tractor to raise the tool in small increments when the maximum wheel slip is exceeded. This allows for operators to save fuel by reducing wheel slip, and reduces operator fatigue

45 DATATRONICS The Console and accompanying software provides easy to use, precise controls for many of the tractors functions. The operator has the ability to record, store, and/or monitor many more variables then ever previously available. The software is housed in the Console I. A few tasks that the console can perform include: Timed detent and flow control over all hydraulic remotes Headland application system which stores a timed sequence of instructions to be repeated at the headlands. Memory functions which allow up to six sets of information to be stored for various fields, operators, or implements. Recording of acres covered, fuel used, number of cycles, time at a particular job and more. Monitor engine or PTO rpm, engine speed and pre-set engine speeds, real time theoretical fuel consumption, wheel slip and more. Trailed Implement Control (TIC) 270-1

46 Work Screen The work screen is the most commonly used screen in the terminal. It displays engine preset speeds, current RPM and ground speed, wheel slip, PTO speed, and other selected information. This bright colorful display is a convenient location for operators to monitor tractor functions. Optional Screens The work screen has two lower portions where users can select a variety of displays depending upon their needs. This versatility allows customization for each individual job or operator as needed. Console Settings Through this screen an array of settings can be altered. Items accessible from this screen are: time and date, system of measure (metric or standard), brightness of the screen, the volume of the indicator beep, language, and scheduled service intervals. These features allow different operations to customize the console for each individual use

47 Valves The valves screen is easily accessed via the main menu. From here a user can adjust time, flow, and float controls as needed. These settings make the tractor simple to use and versatile enough for nearly all jobs. Headland Management The headland management screen is used to set up a series of operations that are typically associated with entering, exiting or turning at the headlands of a field. Some of the main functions available are: lock / unlock of the rear differential and powered front axle, switching between preset engine speeds or to idle, activation / deactivation of electronically controlled valves, transmission speed, and many more. Up to six sequences can be stored in the console at any one time, or they can be stored on a home computer and uploaded via SD card as needed. Once a sequence is created and active, all the operator has to do is press and hold the headland button [A] to activate the sequence. This button is conveniently located on the right armrest. An adjustable beep will sound at the completion of the sequence. A 270-3

48 Memories Specific jobs, tools, or even operators can be stored on the memory screen. Up to six different jobs can be stored. Headland managment sequences are associated with these jobs when the selected job is on. Also in this screen, recorded data can be saved to an SD card for transfer to one of the available software suites such as GTA 100, 200, or 300. Productivity On the work screen an operator can see real time information such as fuel used per hour or per acre, acres per hour, or total acres covered up to the current point. A memory job must be set up and active. At the bottom of this screen the amount of overlap on each pass can be set. This information is stored and can be saved to a SD card for use with GTA software. One significant benefit is the ability to adjust transmission speed and engine RPM for the best possible fuel consumption. Trailed Implement Control (TIC) TIC is a digital operating system that uses the console to monitor ground speed and wheel slippage. Used with tractor s hydraulics, the working depth can be slightly varied to control slippage and keep field travel speed and engine performance at their peak. This system utilizes the Electronic Linkage Control, Datatronics III, and the hydraulic valves for precision tillage operation and a high level of tractor performance. TIC helps to increase field productivity and keep the tractor operating at optimum performance, while reducing tire wear and fuel consumption

49 Dual Control Dual control allows front 3-point hitch equipped tractors to time the lift and lower of the front and rear hitch together. This allows an operator more time to focus on other tasks because when the 3-point hitch button is lowered, the front implement and rear implement will contact the ground at the same point. Video Provision A console equipped with the video provision can be connected to a camera via a cable purchased through AGCO Parts. This cable s input is the common S-video plug. The cameras can be used as rear view mirrors, air meter monitors, and much more. The picture is extremely high quality and has three settings: full mode-picture is on all the time, reverse mode-picture is only on in reverse, and transparent-picture is the background for all other menus. ISOBUS Compatibility The ISOBUS standard applies to the hardware and software of tractor and implement communication in both Agriculture and Forestry. This common platform allows compliant tractors of any brand or model to communicate with implements of different brand or model without the need for additional monitors or terminals. This reduces the cost associated with purchase of a new tractor or implement

50 ISOBUS Plug (Optional) The ISOBUS standard applies to the hardware and software of tractor and implements which are compliant. This has created a new plug at the rear of the tractor. This plug should only be used with other ISOBUS compliant tools. The common plug can be seen on every major manufacturer of high horsepower tractors. This plug will allow users to quickly identify the compatibility of one tool to another. ISOBUS Menu The ISOBUS menu allows users to select the language for the implements that are controlled through the terminal, erase saved implements, or turn off the ISOBUS function. This feature adds to the versatility of the ISO- BUS compliant packages

51 OPERATOR ENVIRONMENT The 7400 Series tractors feature a modern styled cab. It is a ROPS certified cab that provides a comfortable environment with low noise level and a large operator area. Good visibility, easy to reach controls, adjustable driving positions, heating and air conditioning, and plenty of elbow room were all primary design considerations. The cab is easily entered via self-cleaning steps and wide doors on both sides of the tractor. To aid in entry and exit, extra long handles are located at the front cab corners and on the doors, all within easy reach of the operator. Inside the cab is a wide adjustable air suspension seat with a variety of adjustments for a smooth ride and all day comfort. Climate controls improve interior air quality and temperature during long days in the field Instruments are easy to read, controls are easy to reach, and vision is clear to the front, rear and sides. Many more ergonomic features have been designed into this operator enclosure that will assure continued operator comfort, convenience, and protection during long hours of operation

52 Cab Structure The cab in the 7400 Series is a 6 post Roll Over Protective Structure (ROPS) certified cab. It features many deluxe accommodations including heater, air conditioning, front windshield wiper/washer, front sun visor, one interior rear view mirror and two external mirrors. It was created with ergonomics and overall operator comfort in mind, providing drivers with an excellent atmosphere for demanding tasks. Stylish Cab Roof Features of the cab roof include easy to reach HVAC controls, radio access, air re-circulation, and an optional cab roof hatch. More headroom and forward visibility are made possible by relocating the HVAC ducts. It is designed to follow the form of other Massey Ferguson products, creating a family look for greater customer recognition. Recessed Cab Steps The design of the fuel tank on the 7400 supports steps recessed within a molded cavity in the fuel tank. This provides a barrier on either side of the step to prevent the operator s foot from slipping off the step during entry into the cab. In addition, the application of selfcleaning, non-skid treads further increases footing

53 Tilt/Telescoping Steering Column A lever to the right side of the steering column allow operators to adjust the position of the steering wheel. By pushing the lever toward the dash, the operator can change the tilt of the wheel. Pulling the lever toward the seat allows adjustment of the telescopic position of the steering wheel. Turn Signal Lever The turn signal incorporates not only the turn signal controls, but also allows the operator to adjust the front windshield wiper/washer. The horn activation button is also located on the end of the turn signal lever. Standard Air-Ride Swivel Seat The standard air-ride swivel seat features eight position adjustment controls, adjustable armrests, headrest with Massey Ferguson logo, and adjustable air suspension support

54 Instructor Seat with Seat Belt An instructor seat with seat belt is an option (required in North America). The seat provides an extra wide, padded seat, and a padded back rest. When the seat is not in use, it can be folded to a storage position. Enlarged Field Cooler By redesigning the air ducting for the air conditioning system, the field cooler has been expanded to a capacity of 1.5 liters. This provides the operator with additional space for food and beverage during long operating days. Field Office A large field office is located under a convenient cover directly behind the instructor seat. Incorporated into the field office cover is a molded drink holder designed to retain your drink over the roughest terrain

55 Digital Clock and Outside Temperature Display The 7400 Series tractor has a digital clock and an outside temperature monitor located directly above the exterior lighting touch pad. A single button allows the operator to toggle between temperature and time. Exterior Lighting Touch Pad The exterior lighting touch pad is a tractor schematic surrounded with touch buttons and indicator lights. As the operator selects lighting combinations the indicator lights will illuminate. This allows the operator to quickly identify which external lights have been illuminated. Double Bulb Work Lights The double bulb work light option adds an additional element to the two front cab roof lights. Xenon Lights The optional Xenon lighting package replaces the four standard fixtures in the cab roof with Xenon fixtures. The Xenon package provides up to 30% greater visibility by not only providing more light on the work area, but by also producing a more pure white light which is easier on the eyes than the standard halogen package

56 Extremity Lighting Extremity lighting is standard on all tractors equipped with long-bar axles. This breakaway style light warns other drivers of the width of the tractor, and prevents damage to the arm or fender in case of striking an object. These lights can be folded in for single tire operation if needed. Rotating Beacons Up to two rotating beacons can be installed on the 7400 series. The beacons are fixed to the top of the roof. The bright rotating beacon provides great visibility for large jobs and constructions sites. Driving Lights Two automotive style driving lights are located at the front of the tractor. These lights operate when the headlight switch is turned to the ON position. They do not have the brightness of the work lights and prevent oncoming traffic from being blinded at night while still provide superior lighting

57 Pre-Wired Audio System The cab includes all wiring, antenna, and speakers for the installation of a radio and/or CD player. The radio is not included and must be purchased through AGCO Parts. Please see your parts marketing catalog for available radio options. Front Console and Instrument Panel The front console and dash feature a comprehensive range of gauges and warning lights. These gauges give the operator immediate, detailed information on tractor performance and operating conditions. The instrument panel for the 7400 Series tractors feature analog gauges for engine rpm, coolant temperature, and fuel level. A digital readout allows the operator to toggle between PTO speed, theoretical forward ground speed, engine rpm, and engine hours. A panel of warning and indicator lights is positioned across the top of the instrument panel. Transmission controls, hazard lighting, ignition switch, and other controls are located on either side of the console and on the steering column

58 Overhead Cab Controls The redesigned cab roof for the 7400 series creates ample room for the operator. The most visible changes are the addition of domed air vents, a larger field cooler, and the elimination of the roof hatch. Also located in this area are controls for air conditioning, heating, defrosting, radio and other convenience items. The inside rear-view mirror is also located on the overhead console. By concentrating controls overhead, the operator is able to make adjustments directly within the line of sight when in the field. Right Hand Control Console The right hand control console contains logically grouped tractor controls that are not included in the armrest. Operators will find that the levers and switches are grouped according to function, and color coded for ease of locating and use. The ergonomic design creates a comfortable area reducing the amount of fatigue associated with repetitive functions

59 Right Hand Armrest Controls The right hand armrest contains some of the most commonly used controls. It is attached to the air-ride seat so the operator does not have to reach. Items common to the armrest include speed control, one-touch headland management, 3-point lift/lower and depth control, remote valve control (if equipped), and cruise speed activation. Operators enjoy having the controls in an easy to use location. Cell Phone Holder An integrated cell phone holder is molded in to the B cab post directly above the instructor seat. This eliminates searching to locate the cell phone

60 Automatic Climate Control A digital thermostat adjustment is now optional on the cab climate control system. The digital readout allows the operator to select a specific temperature. The HVAC system will automatically adjust the fan and temperature controls to reach and maintain the desired temperature. Seven sensors which are located both inside and outside the cab relay temperature data back to the digital control console. The thermostat is adjustable to read within +/- 0.5 in both Celsius and Fahrenheit scales. In addition, an internal memory allows the system to remember your desired temperature at start-up. External Mirror Defrost By supplying electrical power to the external mirrors, the 7400 Series is now able to offer electric defrost. This increases operational efficiency by allowing quicker starts, without scraping ice off mirrors, on cold mornings. In addition, mirror defrost eliminates frequent stops to clean mirrors when operating in winter conditions. Power Adjustable Side Mirrors One of the options available is the ability to adjust exterior mirrors without leaving the operator seat. With a design similar to most modern cars, the operator can quickly adjust exterior mirrors. This saves valuable time when changing implements or moving between field and road operations. The mirror face features fourposition adjustments. The telescopic action of the mirror is not electronically adjustable

61 Dual Stage Pneumatic Cab Suspension Massey Ferguson 7400 Series tractors now offer Pneumatic Cab Suspension. This system is designed similar to the systems currently used on highway trucks. Two electronically controlled air baffles at the rear of the cab constantly maintain a set air pressure as ride conditions change. In addition, adjustable hydraulic dampers and pan hard rods are mounted in line with the air baffles to eliminate unwanted oscillations. The front of the cab is also isolated from the chassis by a dual cushion of rubber. Rubber rollers in addition to rubber mounting pads further isolate the cab and reduce both vibration and noise. Front Rubber Roller Mounts The front of the cab is supported by rubber roller mounts. These mounts help to isolate the cab structure from the chassis and reduce the amount of vibration transferred to the cab. This helps to increase operator comfort and reduce fatigue from prolonged exposure to vibration

62 SERVICEABILITY Easy access for routine tractor maintenance was an emphasis in the design of the 7400 series. The hood may be fully raised from the front of the tractor with the push of a button. Additional moving parts make cleaning the radiator, oil cooler, and air conditioning condenser easier. Daily service of items such as engine oil level check, engine oil fill, and fuel filter drain can be accomplished without raising the hood. Other service points such as transmission oil and hydraulic oil can be easily checked. To prevent backsplashes and spills, the tractor features ground level fueling with a large inlet. An external cab air filter access hatch and battery box makes periodic maintenance easier. Finally, the incorporation of a weather-resistant toolbox molded to the side of the fuel tank provides storage for tools and accessories outside the tractor

63 Single Piece Hood The simple design of the single-piece hood provides operators with fast access to service areas. The hood lift height is restricted by a tether, but can be removed for even greater access to the engine area. Removing the side panels provides unobstructed access to the engine area. Removable Side Panels The removable side panels attach at 4 points using a friction spring clip. The removable side panels provides access to filters, belts and other engine components. This design is much simpler and takes less time to remove and install than previous models. Cassette Style Air Cleaner All 7400 Series tractors are equipped with a cassette style air cleaner which is easily accessed when the hood is raised. An aspirated system is standard. It draws out the fine dust particles from the air cleaner for optimum filter life under extreme operating conditions. This style air cleaner is designed to trap 20% more fine particles than previous filters while providing more airflow

64 Fuel Filters The two fuel filters are only inches apart from each other, and easily accessed. The filters are set up in a series as a primary and secondary system. This helps prevent engine contamination from dirty fuel or water. Hydraulic Oil Fill For Dyna-VT equipped tractors, the hydraulic oil fill is located on the right side of the tractor next to the steps. The fill is protected by a plastic cover that is held in place by a simple wing nut. Operators will encounter no obstructions from mounted implements or the hitch at this location. Transmission Oil Fill The Dyna-VT fill is located at the rear of the tractor where most other tractors have a hydraulic fill point. A simple cap with a flexible dipstick makes checking and filling painless

65 Engine Oil Fill The engine oil fill is located on the right-hand side of the engine. This fill point is just below the removable side panel. A large opening and low proximity to the ground makes for quick and convenient fillings when necessary. Cooling Package The cooling package for all 7400 series tractors contains 5 coolers: engine coolant, hydraulic oil, transmission oil, inter-cooler, and air conditioner condenser. The package is an expandable design which allows more access than any other package on the market today. Two latches release the package and gas charged dampeners assist the expansion process

66 Cab Air Filter Access A convenient hatch located on the left side of the cab roof provides quick access to the cab air filter. This location provides access to the filter from outside the operator area and eliminates contamination of the cab during removal. This provides a clean comfortable operator environment. Ground-Level Fueling The fuel tank can be filled from the left side of the cab while standing at ground level. The fuel inlet on the tank is oversized to allow for proper tank venting and prevent splash-back. Removable Toolbox A plastic toolbox, molded into the fuel tank, provides convenient, weather resistant storage for tools and field supplies. The toolbox is equipped with a locking hasp for security. Another locking hasp secures the toolbox to the tractor. By unlatching one hasp, the toolbox is easily removed from the tank for any needed task

67 Convenient Battery Box A removable cover provides quick access for battery maintenance. This feature saves time and reduces downtime. Engine Oil Check Engine oil levels are easily checked with the dipstick located on the right-hand side of the engine next to the engine oil fill. Hydraulic Fluid Gauge The hydraulic fluid level is displayed on a convenient sight gauge on the right-hand side of the tractor. The gauge is next to the right step and power disconnect. This saves time and effort as the operator can check the level during a simple walk-around

68 Coolant Level Check Engine coolant level is checked at the expansion tank. Operators can simply look at the level of the coolant in the tank, and compare to the markings to see if additional coolant is needed. Washer Fluid Fill The washer fluid fill is located at the rear of the tractor on the right hand side [A]. Large hand rails are on either side of the rear window next to the fill point if needed. A 290-7

69 TIRES Massey Ferguson 7400 Series tractors use the proven technology of Michelin Tires. Michelin provides a wide range of tire sizes to meet almost any application. From narrow row crop tires to high capacity flotation tires, Michelin has the tires to meet your needs. The taller R1W lug design on the Michelin tire provides continuous gripping power as the tire wears. In addition, a greater sidewall flexing zone allows the tire to put more tread on the ground. This larger footprint increases flotation and provides greater traction. Finally, Michelin tires are approved for use above 25 mph, even under full load. * The addition of Michelin tires to your Massey Ferguson tractors will provide increased efficiency, reduced slippage, and prolonged tire wear. * Tires must be inflated properly. Please read the Agriculture Tire Data Book by Michelin or go to for complete details and proper inflations values

70 Radial Ag Tires All Michelin Ag tires are of a radial design. The advantaged of a radial tire over a bias ply tire is the ability to put a larger and more consistent footprint on the ground. Most bias ply tires have an oval shape footprint while radial tires have a rectangular footprint. Lug Depth The tread type for a Michelin Agribib tire is commonly referred to as R1-W. These tires have a taller lug than the R1 tires. Michelin has designed a sharp vertical lug for the Agribib. This allows the tire to maintain traction even when the tire has only 30% of the tread left. This translates to higher production over a longer life than competitive tires. Tire Pressure Michelin radial Ag tires are designed to be operated at air pressures lower than previous tires. These lower pressures allow the footprint of the tire to lengthen providing more traction and less compaction. Often, when a Michelin tire is properly inflated it may appear low or flat. It is important to review the tire s inflations chart from Michelin to determine the proper air pressure