AS 1040 YAK 4WD XL

Strong, robust, at home in difficult off-road terrain

The robust ride-on flail mower AS 1040 YAK 4WD XL is made for the tough use in uneven, rough, steep and undulating terrain. The ride-on mower shreds extensive green areas, growth up to 1.50 metres, undergrowth and scrub effortlessly and reliably. This makes this flail mower suitable for professional use by service providers, local authorities and garden and landscaping contractors. Essential for the off-road capability is the low centre of gravity and the large XL tyres of the machine for even more ground clearance than the AS 1040 YAK 4WD.

Power pack with direct flail shaft drive

The AS 1040 YAK 4 WD XL is powered by a professional Vanguard V-Twin engine. The horizontal engine delivers a maximum of 23 hp (17.2 kW) at 627ccm displacement and transmits the power via V-belts directly to the flail shaft. Optimum fresh air supply to the engine is ensured by the cyclone air filter. Thanks to the oil and fuel pump, the AS 1040 YAK 4WD XL is fully suitable for slopes.

Stepless four-wheel drive with cruise control function

Thanks to the hydrostatic drive, the ride-on flail mower can be steered comfortably and continuously in the range of 7.3 km/h forwards and 6.8 km/h backwards. The permanent four-wheel drive and XL ground clearance ensure the best possible propulsion on any terrain. The rear axle differential can be locked at any time by foot pedal. Driving is simple and comfortable using the hand control lever. The automatic parking brake and the cruise control function are also integrated in the drive lever. For safety reasons, the machine also has an emergency brake pedal for the right foot, just like a passenger car.

Surfing flail mower with Y flails

The mulch mowing deck with 56 Y flails and a working width of one metre creates area outputs of up to 7,300 m²/h. The cut material is deposited as a mulch layer evenly over the entire working width. The cutting pattern, even with very high vegetation, is visually homogeneous and attractive. 7 levels are available for adjusting the cutting height from 30-110 mm. The pendulum suspension of the mowing deck allows it to move upwards when sitting on the sides or when applying high force to the blades (surfing mowing deck). Damage to the cutting deck, rotor and flails is thus prevented as far as possible. The asymmetrical arrangement of the mowing deck enables efficient mowing of edge areas and obstacles.

High seating comfort and ergonomics

The ergonomic and upright sitting position in the machine ensures ample legroom for operators up to 1.95 m tall. The bucket seat can be adjusted in length to suit any user. The innovative suspension system with end position damping is also individually and continuously adjustable to suit every operator. In addition, all operating elements are logically arranged and conveniently accessible. Aluminium side panels protect the driver’s hands from thorns and undergrowth. A standard puncture protection with AS Motor „Plattfuss-Stop reliably prevents flat tires.

Best off-road capability

Permanent four-wheel drive with switchable differential lock for the rear axle. Large XL-size tyres with high ground clearance and AS Motor tyre sealant as standard.

Flail over rotary?

Stable and robust asymmetrically arranged surfing flail mower unit. The mower deck and the flails themselves give way to uneven ground and foreign objects.

Uniform grass placement

Perfect mowing results over the entire working width.

Made for professionals

Flail rotor drive and diminished need for path overlap guarantee high work rates.

Robust and durable

Stable, square-tube frame with weight-optimized design, low-maintenance hydrostatic transmission and optimal cooling.

Extremely suitable for slopes

Low centre of gravity and 4WD guarantee safety on slopes.

Stable lateral position

Balanced weight distribution – 45% on the front axle and 55% on the rear – ensures outstanding traction and safe work on every terrain.

Safety first

Maximum operator safety thanks to stable folding bar, integrated safety switch in the driver seat, and emergency stop foot pedal. Lashing points on the device enable safer transport.

Easy maintenance

Flails and drive belt are easily replaced via appropriate service cut-outs and openings. Fast access to all maintenance points.

Product details

Optimal ergonomics

Upright sitting position, ideal steering-wheel placement and legroom for operators up to 6'6" tall. Lateral deflectors protect the operator from thick growth and thorns. Bucket seat with newly-developed seat suspension.

Comfortable drive

Variable hydrostatic drive with one-hand drive lever, cruise control and integrated parking brake for fatigue-free work.

XL ground clearance

XL tyres for increased ground clearance and filled with AS-Motor tyre sealant.

Surfing flail mower deck

The flail mower unit’s surfing suspension yields upward on uneven terrain. Easy height adjustment through spring support.

Technical Data

cutting width 100 cm
engine manufacturer B&S
engine designation Vanguard V-Twin 3864
4-stroke engine, 1-cyl. / 2-cyl. /
displacement 627 cm³
maximum power 17,2/23,0 kW (hp)
rated power 15,5/21,1 kW (hp)
rated speed 3600 rpm
drive, 2WD rear / 4WD permanent /
drive, variable hydrostatic transmission
max. speed 7,3 km/h
limited-slip differential
automatic parking brake
mono-blade / cross-blade / Y-flails / /
side discharge / rear discharge /
closed mower deck
surfing mower deck
cutting height 30 - 110 mm
tank capacity 17 l
seat spring package, standard / optional /
dimension L/W/H 199x122x162 cm
weight 351 kg
Changes in technology, equipment and price are reserved. Of information or illustrations no claims can be derived.

Accessories

Insect scare device

Scares insects and small animals away from the mower. Three times more insects can flee in time. With respective adapters suitable for AS 62/63, AS 701/901, AS Sherpa and AS YAK.

More information »

Hammer flail kit

Complete kit. For AS 1040 YAK and AS 1000 Ovis.

Steering knob

Facilitates one-handed steering and maoeuvring on level terrain.

Tilt meter

Convenient display of slope incline.

Snow blade

Width: 1107 mm, height: 348 mm. Adjustable on both sides.

Trailer

Cargo area: L = 1071 mm, W = 607 mm, panel height: 274 mm. Permissible total weight: 100 kg. Rear panel can be removed.

Trailer hitch (YAK)

For connecting the AS trailer.

Transport box kit YAK

Compact transport box for installation behind the driver’s seat. Suitable for all YAK models.

Applications

Commercial landscaping

Performance on rough terrain, perfect cutting results and high efficiency are advantages AS-Motor machines provide to professional service providers.

Gardening and landscaping

AS-Motor’s professional technology offers solutions for the diverse tasks of gardening and landscaping, from outdoor facilities to private gardens, public parks and residential lawns.

Hunting and forestry

In forests and on hunting grounds, mowing can take place as infrequently as once per year or even at intervals of several years. AS-Motor machines are engineered to tackle the thick growth native to these areas as well as Christmas tree plantations.

Municipal maintenance

Caring for green areas in the civic environment involves a variety of tasks. From parks to roadside management, AS-Motor provides the correct tools to ensure both professional results and operator safety.

Road maintenance

Maintaining roadways often involves mowing high grass and slopes, two specialties of AS-Motor’s professional technology.

Utilities

AS-Motor offers professional technology for the maintenance of green spaces in and around public utility facilities.

Viticulture

Viticulture, or wine-growing, is one of civilization's oldest forms of agriculture. AS-Motor was founded 60 years ago with the objective of tackling the slopes and thick growth of vineyards.

Solar parks

Efficiency is crucial to maintaining a profitable solar park. AS-Motor offers the ideal tools to properly maintain the green areas around and under solar panels.

Equestrian businesses

Equestrian areas require various forms of green care. Whether maintaining paddocks or lawns, AS-Motor offers tools to create the ideal equestrian environment.