Many craftsmen are used to making equipment for themselves. This also applies to mini tractors. The unit is made with a solid or broken frame. The first option is easier to manufacture, and the classic - breaking is considered more maneuverable. You can fold the unit from old spare parts or buy a kit for reworking the walk-behind tractor. Now we will look at how a home-made mini-tractor of a break 4x4 is going to be assembled and figure out what is needed for this.
What is a fracture
Externally, the breakage mini-tractor is no different from the usual compact tractor model. When self-made, such a technique is most often assembled on the basis of a walk-behind tractor. The main design difference is the broken frame, which consists of two parts. This is where the name came from.
When self-assembling fractures, you need to have a mini-tractor diagram on hand, where the dimensions of all units are indicated. When everything is calculated to the smallest details, you can start assembling.
What and how to collect
There are many options for assembling homemade products, since each craftsman makes his own adjustments to the drawings. In general terms, the process of creating a 4x4 fracture looks like this:
- The assembly of the mini-tractor breaks begins with the manufacture of the frame. Despite the rough shape of the two semi-frames, all chassis assemblies are located rationally. A special feature of the frame is the three-stage design of the side members. Elements of the front steps are made from tens of channels. The last step can be made from a profile pipe with a cross section of 8x8 cm. For the front traverse, channel No. 12 is suitable, and for the rear one - No. 16. Crossbars are made according to a similar system.
- You can take any motor for a fracture mini-tractor that is more suitable in size, fastening and power. A 40-horsepower four-cylinder diesel is a good fit. from. Water cooling will keep the motor from overheating, even if the tractor is on the field all day without interruption.
- After installing the engine, a power take-off shaft, a transfer case and a gearbox are installed on a mini-tractor with a fracture frame. They can be removed from a decommissioned GAZ-53 truck. To dock the clutch with the engine, you will have to redo the flywheel. To do this, cut off the rear part on a lathe, and then grind a new span in the center. Retrofitting the clutch basket cover is based on a fit.
- The rear axle will fit any vehicle. He does not need to make any changes. The same goes for the propeller shaft.
Further, on DIY mini tractor you need to install a good wheelbase and steering.
The video shows a 4 × 4 gimbal for fracture:
Wheelbase installation
The choice of wheelbase size must be approached wisely. Often a mini-tractor is equipped with wheels from a passenger car. You can do it this way. The main thing is that the dimensions of the front axle discs are at least 14 inches. Otherwise the tractor will load in the ground. However, you cannot overdo it with dimensions. The large diameter of the wheels will complicate the handling The situation can be corrected by installing a hydraulic control system, which is completely removed from the old agricultural equipment.
You can assemble the front axle yourself from a piece of pipe with fitted bearings. Alternatively, it can also be removed from other equipment and put on the tractor without modification.
To achieve good shock absorption, it is advisable to fit 18 "tires on the rear axle. It is not difficult to secure the wheels to the rear axle hubs of a truck. First, with a grinder or a cutter, cut out the central part of the disk, where the mounting holes are located. The same part is welded into this place, only cut from the disk of the ZIL-130 car.
Steering installation
For breaking, the steering is suitable from any passenger car. But in order to increase the maneuverability of the equipment, it is advisable to install hydraulics. It will make the tractor easier to operate. The entire system is removed from the old agricultural equipment. You also need an oil pump, which is driven by a motor. It is optimal to make sure that the wheels of the main shaft are controlled through a gearbox. In the photo, we propose to see the drawings of the main control units.
When installing the steering, it is important to remember to apply the hydromechanical drum brake. It is connected to the pedal by means of a traction.
When all the main components are ready, they begin to design the unit. That is, they equip the driver's workplace by installing an adjustable seat. The canopy of the summer cabin can be attached to the four welded uprights. The engine and all other components are hidden under a steel casing for safety. It can be bent out of galvanized steel. For night work, the tractor is equipped with headlights. You just need to adjust the space on the frame for the battery.
This is how a mini-tractor is assembled. do-it-yourself fracture from old parts. In words, everything is done simply, but in fact, you have to invest a lot of work and patience.
