Alpina AT4 98 HWA - Ride-on Lawn Mower - Collection Basket - Hydrostatic Transmission

The hydrostatic transmission is a modern and functional type of transmission, increasingly popular in garden tractors.

Its operation is very simple: to move forward, just press the pedal with the toe. The tractor will advance based on the pressure applied. To engage reverse, simply press the other end of the pedal with the heel.

Releasing the foot from the pedal will stop the tractor.

This transmission is increasingly used and sought after by users, thanks to its practicality compared to manual transmission. The latter requires the operator to stop every time a speed change is needed, to engage the gear, release the clutch, and restart.

The hydrostatic transmission, on the other hand, allows for immediate speed variations without stopping, making it perfect for large areas where obstacles or trees need to be navigated around.

- Detail of the hydrostatic platform

- Detail of the stop pedal

- Detail of the washing connection

- Detail of the cutting deck

The engine mounted on the AT4 98 HWA tractor is an ST 550 TWIN, ideal for high and versatile performance.

A twin-cylinder engine, 586 cc displacement, 4-stroke petrol of the latest generation with overhead valve "OHV".

This is a professional-grade engine with high reliability and durability. One of the most famous engines in the world, both in the field of tractors and in the gardening and agriculture sector in general.

It develops a power of 10.4 kW, allowing the machine to cover large areas in a very short time, as well as powering the large rear wheels and cutting blades.

It has a fuel tank capacity of up to 6 litres.

At maximum power, it reaches 2600 rpm and is air-cooled.

Nominal Power: 18 HP
The more correct term would be "Commercial" Power, meaning the classic standard of power definition officially used until a few years ago by all the most well-known engine manufacturers.

* This data is still widely used and advertised in the main commercial sales channels, although it is an increased figure compared to the actual power.

Effective Power: 13.94 HP (at a rotation speed of 2600 rpm)
This corresponds to the actual power expressed at the engine shaft. It is the one indicated as official in the engine manufacturer's manual or technical data.

* This data can vary for the same engine model depending on the rotation speed that the equipment manufacturer has decided to have the engine deliver.

1- COLLECTION WITH 240L BASKET (standard):

The grass is collected inside the collection basket, one of the most widespread methods. The bag emptying system is very simple: it is done by grabbing the appropriate handle. This allows you to empty the bag at the desired point without any effort.

Equipped with an acoustic signal that alerts the operator when the bag is full.

2- MULCHING (included):

The grass is finely chopped inside the cutting deck and then released directly onto the lawn. With this method, the grass will be so fine that it will seem as if it has been collected, giving a very satisfying aesthetic appearance. Moreover, with this method, the decomposing grass will become a nutrient element for the lawn itself.

It is useful to remember that, to ensure the absolute efficiency of the system, the lawn must still be irrigated, and the grass cut very often.

Conversion: remove the collection bag and insert the mulching plug into the central tunnel.

- Detail of the central tunnel

The cutting deck of the tractor features two steel blades, for a width of 98 cm.

The deck is floating, meaning it adapts to ground imperfections, as long as they are not excessive, for an impeccable cut on any occasion.

The blade engagement is electromagnetic, and is activated via the yellow button on the control block. This system allows for a more rapid and immediate blade engagement.

There are 7 different cutting positions, ranging from 25 to 80 mm. The adjustment is made via a side lever, located near the tractor seat.

There are also two anti-scalp wheels, for better ground adherence.

-Detail of the electromagnetic blade activation

The controls and adjustments of the Alpina AT4 98 HWA tractor are:

• Engine throttle lever
• Parking brake
• Foot brake
• Electromagnetic blade engagement with yellow button to the right of the steering wheel
• Lever for adjusting cutting height
• Pedal hydrostatic transmission, allows engaging forward and reverse gear.

Other features of the Alpina AT4 98 HWA ride-on lawn mower:

• Engine bonnet can be opened for cleaning and maintenance operations
• Ergonomic steering wheel
• Robust front bull bar: prevents frontal impacts and protects the machine
• Rear wheels dimensions 18 x 8.50-8
• Front wheels: wheel dimensions are 15 X 6.00-6
• Pivoting front axle: ensures excellent balance, stability, and driving comfort even on uneven terrain.
• Central compartment
• Anti-scalp wheels
• cupholder
• LED lights