MOTOR MOWER 680 HY Powersafe DIESEL
The 680 HY Stargate motor mower with hydrostatic traction is designed to mow in very demanding conditions and with maximum slopes. It is a hydrostatic mower equipped with the Powersafe hydraulic clutch system with multiple steel discs in an oil bath. The new hydrostatic transmission has been completely redesigned.
The ergonomics of the levers, the high traction capacity and the braking of the Stargate guarantee great maneuverability and control and absolute safety.
The 680 HY Stargate mower has 2 speed ranges (slow/fast) selectable by the operator via a mechanical control included on the handlebar. These are automatic parking brake and manual disconnection for maneuvers with the engine stopped. It is available in 2 versions. A 350 hp Kohler KD7.5V diesel engine and a 100 hp Yanmar LV9.1 diesel. All specific for use on steep slopes.
Features
- Engine: Diesel
- Make model: Kohler KD350V / Yanmar LV100
- Power: 7,5 hp / 9,1 hp
- Start: Manual, rope
- No. of speed ranges: 2 ranges (slow / fast) with adjustable speed.
- Fast investor: Yes, hydromechanical
- Clutch: POWERSAFE multi-disc in oil bath
- Brakes: Independent drum and parking brake
- PTO: Independent to 990 rpm in oil bath
- Differential: Yes, with blocking
- Handlebar: Adjustable and mounted on shock absorbers
- Wheel: 5.00 – 10 / 21×11.00-8 Terra Tire
- Mowing bar: Laser: 1.15, 1.35, 1.55 m. / Elasto laser: 1.15, 1.35, 1.55, 1.75 m. / SF: 1.15 – 1.45 m. / Duplex: 1.20, 1.50, 1.80 m.
- Security devices: powersafe
- Recommended use: Lands with steep slopes
Hydrostatic transmission:
The fundamental difference with respect to the mechanical transmission is that the hydrostatic allows to adjust the forward speed in a "continuous" way, that is, without having to change gear. In fact, only by varying the position of the power lever placed on the right arm of the handlebar can you vary the speed without interruption, adjusting it depending on the type/state of soil and grass. Through the mechanical transmission (for example, with 3 forward speeds and 3 reverse gears), the advance is regulated by “positions”, because it is related to the change of the predetermined speed. In addition, with the hydrostatic transmission, the engine and the PTO (power take-off) work at a constant speed, regardless of the speed at which the machine advances.Forward transmission with compact hydrostatic pump-motor group in alloy lightweight, positioned above the gearbox with separate high-pressure circuit with respect to the Powersafe® clutch and axial-centrifugal ventilation for cooling By means of a single lever on the handlebar, it is possible to continuously vary the speed and direction of the machine. Thus, an infinite number of speed ratios are available for any work requirement. Forward speeds (with engine at 3600 rpm and 6.5/80-12 wheels) can range from 0 to 4,7 km/h forward gear . In reverse it varies from 0 to 4 km/h. The automatic parking brake (auto-hold) locks the machine up to its adhesion limit while a manual connection control, protected with a safety lock to prevent accidental operation, allows maneuvering with the engine stopped. |
Powersafe:
La mower 680 HY Stargate is endowed with a multi-disc clutch in oil bath which provides important advantages in terms of safety and performance.
The system Powersafe security (patented) stops the implement instantly when the handlebars are released. Unlike the old security systems, PowerSafe stops the advance of the mower the engine and more quickly, achieving greater safety for people. The PowerSafe also provides greater comfort for the user, since it allows the handlebars to be released while working, stopped and resumed without having to restart the engine. This type of clutch, in addition to making the mower drive smoother, also withstands the use of implements that work with reciprocating motion, such as mowing bars, or with high inertia, such as lawnmowers or brushcutters, without problems. In terms of durability, the useful life of this clutch is equal to that of the motor mower itself, it never loses its optimal adjustment and does not require maintenance. Due to its constructive architecture, the multi-disc clutch in an oil bath is smaller than a conventional clutch, reducing the dimensions and weight of the mower assembly. |
Mowing bars:
The mower 680 HY Stargate You can mount Laser, Laser Elasto, SF or Duplex mowing bars.
Laser cutter bar
The laser cutter bar is made up of two blade sections: a static lower section and an upper section that reciprocates, making a clean and precise scissor cut. They are recommended for cutting any type of grass.
Available for this mower in 1, 1.15, 1.35 and 1.55m.
Cutter bar SF
The SF mowing bar (with semi-fine teeth) is composed of a comb of fingers that remain static and a section of blades that move with a reciprocating motion. The protection that the fingers offer to the blades makes this bar especially suitable for cutting grass in areas with the presence of stones.
Available for this mower in 1.15 year(s) and 1.45 m.
Duplex cutter bar
The Duplex cutter bar is double reciprocating: blades and teeth move simultaneously in opposite directions.
The movement of the fingers eliminates the possibility of the mower plugging, allowing a constant working speed without compromising the quality of the cut. The fingers also protect the blades from impact against stones or other foreign bodies. Once worn by use, the fingers can be conveniently replaced without removing the blade from the cutting unit.
The self-adjusting elastic blade clamps by means of a 'leaf spring' keep the properties of the 'scissor' cut constant and avoid manual adjustments. When the blades need to be replaced, the blade clamps are quickly inhibited, making it possible to replace them in a few seconds.
The blades are reinforced with a thickness of 2,5 mm and have heat treatments that increase their hardness and resistance.
Available for this mower in 1.20, 1.50 and 1.80m.
Elasto Laser Cutter Bar
The “Dual Laser Elasto” are cutting bars with double reciprocating movement. The blade and comb move in opposite directions and are equipped with “Laser® teeth” and self-adjusting blade grippers. They are available in widths of 1'30m., 1'70 m. y 2'10 m.
The new “Dual Laser Elasto” cutter bars add superior structural characteristics and superior cut quality of the “Laser®” bars with the advantage of a great ABSOLUTE OPERATIONAL COMFORT.
The level of vibrations is extremely low: the blade and the comb move against each other, canceling each other.
The drastic reduction of vibrations minimizes operator fatigue and premature deterioration of wear parts, providing great savings on spare parts and repairs.
New center hole blades reduce stress and improve cleaning.
Self-adjusting blade clamps maintain a constant force (throughout the life of the bar) between the blade and the comb, without any manual operation by the operator. The new spring steel blade grippers with “deflectors” provide an additional improvement for the discharge of cut grass.
For mounting the “Dual Laser Elasto” cutterbar, the Duplex Torx transmission in oil bath is always required.
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