Drive motors, Sensors, Moisture sensor | Hayter Mowers 101 88 90-26

TROUBLE SHOOTING

Drive motors

Two, 12 V DC motors with reversible direction of rotation are used to drive the lawn mower forwards. The two drive motors can rotate in different directions at the same time to give the lawn mower a tight turning circle and increase manoeuvrability.

A gearbox is engaged after the drive motors to give the lawn mower increased traction. The speed is registered by a tachom- eter which is connected to the motors. The speed of the motors is then governed by the microprocessor.

The cables from the drive motors are connected to the connec- tor X9 (left) and X8 (right) on the circuitboard in the box. The voltage to the drive motors should be 12 V.

Red cable (+) and black cable (-) are the supply cables. These can be fed with 12 V for test driving. The other three cables are used to control the motor.

Supply cable

Sensors

A sensor (coil) is mounted on top of the front bracket between the front wheels, see the diagram below, so that the lawn mower can sense the electromagnetic field emitted by the loop cable.

Sensor

The lawn mower uses two different systems to sense the electromagnetic field:

1.The lawn mower should, with a loop length of 300 m – at a distance of max. 35 meters from the loop cable (see diagram) sense that the loop cable is generating an electromagnetic field, see diagram, (with a 500m loop length - max 25 m). If it does not sense the electromagnetic field an error signal, 3 beeps/sec. is sounded.

NOTE! The maximum cutting area to achieve a good cutting result is approx. 1200m2.

2.The lawn mower should sense the increase in the electro- magnetic field as it approaches the loop cable and because of this turns just in front of the loop cable.

The sensor is sensitive to moisture and dirt. If, for example, grass sticks between the sensor's pins this will cause signal leakage and the lawn mower will possibly signal that it cannot sense a signal from the loop cable (3 beeps/second). The unused (smaller) pin can be cut off and insulated using silicon if the problem frequently recurs.

The part of the cable harness that runs from the sensor is connected to terminals 15 and 16 on the connector X1 on the circuitboard. (Arbitrary pole reversal.)

Moisture sensor

Using the keyboard (press C0) you can activate the moisture sensor which is located under the box so that the lawn mower can determine whether the grass is too moist to give an accept- able mowing result.

A copper rivet and a zinc plate form a galvanic element that when wet generates a voltage of 0.7V, which can be measured on the cables on the inside.

The moisture sensor only measures moisture in long grass, that is, it will not react to short, moist grass.

The cables connected to the rivet are connected to connector X5 on the circuitboard.

Cable

6 – English

101 88 90-26 specifications

Hayter Mowers has long been synonymous with quality and innovation in the realm of lawn care, and their 101 88 90-26 model epitomizes this legacy. Designed for the discerning gardener and professional landscaper alike, this mower combines cutting-edge technology with robust features to enhance your mowing experience.

One of the standout characteristics of the Hayter 101 88 90-26 is its powerful engine. Featuring a reliable Briggs & Stratton motor, this model provides ample power to tackle various grass conditions, from lush lawns to tougher terrains. The engine is designed not only for performance but also for efficiency, minimizing fuel consumption while maximizing output.

Another defining feature of the 101 88 90-26 is its cutting width. With a generous 26-inch blade, this mower can cover large areas quickly, reducing the time spent on mowing without compromising on the quality of the cut. The precision-engineered blades ensure a clean cut, promoting healthier grass growth and a more attractive lawn.

The Hayter 101 88 90-26 also boasts an adjustable cutting height system, allowing users to customize the grass length according to their preferences. With a range of settings, the mower adapts effortlessly to different types of grass and yard conditions, whether you prefer a close cut for a formal garden or a longer length for a more natural look.

Durability is another hallmark of Hayter mowers, and the 101 88 90-26 is built with robust materials designed to withstand the rigors of regular use. The steel chassis not only adds to the mower's longevity but also contributes to its stability during operation, ensuring a steady and balanced performance.

Technologically, this mower is equipped with an intuitive starting system that minimizes effort and enhances user experience. The easy-start feature means you can get to work quickly without fumbling with complicated mechanisms.

The mower’s ergonomic handles are adjustable and designed for comfort, reducing strain during extended use. User-friendly controls further enhance the operation, making it an ideal choice for both novice users and seasoned professionals.

In summary, the Hayter Mowers 101 88 90-26 is a powerful, efficient, and versatile lawn mower that combines advanced technology with user-friendly features. Its robust construction, adjustable settings, and ease of use make it a worthy investment for anyone looking to achieve a pristine lawn.