In some cases, it becomes necessary to change the gauge of the walk-behind tractor. For example, the need for such adjustment may arise when the loads on the cultivator change, the processing of beds of different widths. In addition, the need to change the gauge may arise due to the characteristics of the cultivated soil or when working on sites with steep slopes. Indeed, in this case, such an adjustment makes it possible to protect the cultivator from tipping during agricultural work.
Materials and tools needed
To make a device for changing the gauge of a walk-behind tractor, you will need a small amount of power tools and materials. In addition, a power tool is suitable for performing such work, which is available to almost every owner of a garage or a private house. To make such expanders for the cultivator, you will need the following materials and tools: grinder; Electric drill; Welding machine; stirrups; roulette; metal pipe (internal diameter 30, external diameter – 38.7 mm).
Also, to secure the expanders, you will need a hub from a heavy walk-behind tractor. The hub is needed to install the track base expanders and attach them to the cultivator disc.
How to change the gauge of a walk-behind tractor with your own hands
For the manufacture of dilators, it is necessary to take a metal pipe and cut two pieces of it 28 cm long using a grinder, then at one end of each of the cut pieces of the pipe a hole should be made for install a locking bolt (hole diameter 10 mm) with a drill.
The distance from the hole to the edge of the pipe should be 2.5 cm. In addition, at the end of the pipe (from the edge) you need to make a special notch (small cut) about 10 cm in length. along with a grinder. .
This procedure is necessary to reduce the diameter of the edge of the pipe by 0.5 cm for the subsequent installation of the expander on the hub. Then the made extensions should be attached to the axle shaft of the cultivator and installed on the hub.
There are several other different ways that allow the user, on their own, without any device, to change the gauge of the walk-behind tractor. For example, to change the width from 600 to 700 mm, it is necessary to dismantle the wheels of the cultivator, and then reinstall them, but from the opposite side. Simply put, it is necessary to change the sides of the wheels relative to the walk-behind tractor.
In the event that the user needs to increase the width to 800 mm, then it is necessary to dismantle the wheels and dismantle the discs. To do this, you need to disassemble the central part of the disc, and then reinstall it, but only on the other side of the wheel.
In simple terms, the central part, to change the width, is fixed on special expanders which are welded directly to the rim of the disc itself. After changing the location of the central part of the disc (screwed to the other side), the wheel must be reinstalled on the walk-behind tractor.
To change the track width to the 500mm mark, you need to perform the same steps. However, in this case, the wheel is mounted on the hub on the other side (in its inner part).
It should be noted that the main advantage of the adjusted track is that the user can quickly adjust the ground clearance of the device necessary for performing various works. For example, if there are many different types of crops in the field, then for their processing it will be necessary to change the gauge of the equipment used.
After all, row spacing for different crops may differ, so in this case you will need to adjust the lane. For example, the row spacing indicator for such a crop as potatoes usually does not exceed 700 mm, beets 300-600 mm, and carrots – 300-400 mm.