How to increase the speed on a Cascade power tiller
Install the valves
This procedure should be done only when the engine is cold. The metal expanded by heat does not allow performing it correctly and accurately. Wait about 3 or 4 hours. It is recommended first to blow off the motor with compressed air, and ideally. to wash it. After disconnecting the wires from the plugs, unscrew the bolts from the resonator. The resonator itself needs to be removed, and you must be as careful as possible to keep the mount in place.
Disconnect the PCV valve and the bolt of the C.H.V. Using round pliers dismantle the ventilating stroke of the block head. Unscrew the bolts that fasten the cover to this head. wipe everything down thoroughly to avoid contamination. Remove the valve cover.
Turn the wheels to the left as far as they will go. Remove the nut from the crankshaft and turn the shaft counterclockwise. Now you can inspect the valves and measure the gaps between them with a feeler gauge. To adjust, loosen the locknut and turn the screw, achieving slip of the probe in the gap with little effort. After tightening the locknut, you must assess the gap again to ensure that it does not change during tightening.
How to remake and modernize a heavy single-axle tractor Neva with your own hands: we explain point by point
The single-axle tractor is an indispensable thing for farmers. Increasing the power of a power tiller allows you to increase productivity and speed up agricultural work. You can improve the technique with your own hands, or buy the necessary accessories.
How to make a reverse speed on a tractor without reverse
What is a single axle tractor by its network? It’s the same tractor, but a miniature one. And one more important difference: it is single-axle, the role of the rear axle is performed by a man who drives the tractor with the handles on the steering wheel. In Soviet times, such equipment was not in demand, because you could use the collective farm equipment for a small fee or even for free to plow your garden. Who does not know. there were no problems with fuel in those days. When the collective farms faded into eternity, such equipment was in demand, because it greatly facilitated the main agricultural activities on relatively small plots. Low weight, high maneuverability, ability to use almost the same set of attachments as in tractors. these are the main advantages of power tillers and their variety. power tillers with a mill, cultivator or other similar equipment as wheels. Add to this a significant difference in price compared to tractors, even small ones, and you can see why these machines are very popular with private owners.
Like any other self-propelled vehicle, a power tiller has a gearbox which allows you to adjust the speed of cultivating the land. Many models are also equipped with a reverser, which facilitates maneuvering. But many power tillers are produced without reversing. If you need to make a U-turn on a limited area, such units have to turn by hand. If the weight of a power tiller is small, 30-40 kg., it is not a problem. But our homegrown agrarians prefer heavier machines. they can handle soils of any composition, including heavy ones. But maneuvering a power tiller that weighs a hundredweight is not a task for physically weak people. That is why many owners of such machines after one or two years of operation decide to modify their power tillers by themselves.
If you think it is a task that requires special technical skills, you are only partly right. Yes, technical know-how is required and we will give it to you. The rest depends on whether you have direct hands or not. But since you work on the ground, you may assume that there is nothing wrong with this. So let’s start studying the question.
How to adjust the speed?
Sometimes it happens that you want to change the speed of your motor-block device: to increase or, which happens quite rarely, to reduce it.
One of the two methods below is usually used to increase the movement speed of motor-block units:
The normal wheel diameter on almost all power tillers is 570 mm. When changing tires, the most common choice is a tire with a diameter that is about 1.25 times larger than the given one. 704 mm. Although the size difference is relatively small (only 13.4 cm), travel speed increases significantly. Of course, if the design allows you to put larger tires, you can try to increase the speed gain.
A pinion set in a wheel gearbox usually has two gears with 12 teeth on the small one and 61 on the large one. You can change this figure to 18 and 55 respectively (only specialists at agricultural equipment service centers), then the gain in speed will be about 1.7 times. Do not try to conduct the operation yourself to replace the gears: here it is very important to pick up not only quality parts with minimal errors, but also the appropriate pulley. The gearbox shaft retainer plate also plays an important role.
If you think logically, you can decrease the walking speed of your power tool by doing the exact opposite. decrease the diameter of the tires or the number of cogs in the gear train.
A possible solution to increase the speed is also to adjust the throttle switch: when the machine turns on, move it from the first position to the second. Return to original position to decrease speed. Of course, you don’t need a special reduction gears to change downshift. it’s enough not to shift into high gear.
Adjusting the carburetor K-60
K-60, the carburetor for Cascade is similar to the structure and operating principle of other models.
Adjustment also has similarity with the algorithm of adjustment of similar devices:
- free the float chamber from gasoline residue;
- open the air inlet connector of the device;
- set the throttle valve in 2 millimeters from the air pipe;
- then tighten the fuel control screws up to the stop;
- Turn the screws by ½ turn;
- start the engine and warm it up for 3-5 minutes;
- Screws should be unscrewed to the lowest number of revolutions of the engine of the motor block;
- after completing this operation, tighten the adjusting screws again.
To begin with, let’s find out what motoblocs are considered the fastest? Do domestic manufacturers have advantages or the palm of primacy unconditionally belongs to foreign competitors?
By the way, it is quite difficult to determine an absolute winner in terms of maximum speed, because not only are there a great many models of power tillers from different manufacturers today, but it is also possible to independently modernize this multifunctional agricultural unit.
The number and values of speeds of a power tiller depend on the engine and gearbox installed in the unit.
MTZ-05, MTZ-12 power tillers have 4 speeds forward and 2. reverse. Minimum speed corresponds to the first gear, when switching to the next gear, the speed increases. For the above models, the minimum speed when moving forward is 2.15 km / h, when driving backward. 2.5 km / h; the maximum speed when driving forward is 9.6 km / h, in reverse. 4.46 km/h.
The Mobil-K G85 D CH395 /Grillo has a maximum forward speed of 11 km/h, reverse. 3 km/h. At the same time the gearbox provides the ability to shift between three forward and two reverse speeds. Do not forget that all these figures are true for unimproved models.
“Mobil-K Ghepard CH395”. a single-axle tractor made in Russia, has a gearbox 41, can accelerate up to 12 km/h.
Ukrainian single axle tractor “Motor Sich MB-6D” can reach a speed of 16 km / h, six-speed gearbox (42).
Centaur MB 1081D is a Russian machine, but it is produced in Chinese factories. Considered to be the fastest power tiller in the heavy class. The maximum speed of its movement is 25 km / h! It belongs to the diesel tractors, in contrast to the above models. they work on gasoline.
Features of the device
By its design, the travel-reducer is a kind of reduction gearbox. Thanks to the chain it turns the driving power of the cultivator into the work of the attachment. This device can be purchased in many agricultural machinery stores. However, if you make the reducing gear for a power tiller yourself, you can save a good amount of money. The design of the equipment consists of such elements:
- Whole body of the generator;
- Rotor shaft;
- Flange bearing;
- Bevel gear;
- Steel parts;
To make a shrinker for a rotary cultivator with their own hands is simple enough. To avoid typical mistakes, be sure to make drawings, which will need to specify the dimensions and material of the parts and the sequence of their attachment.
Stroke reducer for power tiller. description and how to make
For decades, it is a single-axle tractor serves as a loyal assistant to the farmer in a number of agricultural works. This is a truly useful unit, which allows to mechanize labor and many times increase the productivity of work. With the help of a single-axle tractor can cultivate plots of land, make hay and other forage for livestock and even just to transport goods. In some cases, there is a need to reduce the working speed of this machine in order to increase the efficiency of some operations.
Regardless of whether a purchased or homemade reduction gear will be used in a power tiller, it is necessary to understand how the elements of the mechanism are located, how they are serviced and repaired. Reduction gears of power tillers can be of several types, each of which has its own advantages and disadvantages.
Gearbox to gearbox connection diagram
As a rule, it consists of one or two stages; the main elements are gears. This type is one of the most reliable mechanisms used in stroke reduction units. Used in the most powerful power tillers. Their advantages include:
Such reducers are not without disadvantages, the main of which are maintainability and price. In case of breakage they are usually replaced as a unit, which requires considerable expense. In addition, you need to monitor the presence of grease, the lack of which can lead to rapid wear and tear.
The worm gearbox
The main component is the worm gearing. Allows you to reduce the size of your power tiller and improve weight distribution due to the perpendicular position of the drive shafts and wheels. Most popular on lightweight and low-powered power tillers and tractors.
The main disadvantage of worm gears is the absence of reverse. If it fails, the entire shrink shaft can be replaced.
One of the most popular gearbox types among users. Most of them are dismountable, which simplifies maintenance and diagnostics. The most common breakdown is the chain breaking or stretching, shearing teeth of sprockets or drive shaft keys. All of these faults can usually be repaired quite easily by replacing the faulty part yourself.
The advantages of this type of reducing gear include
Gearboxes of this type are characterized by different gear types in one mechanism: pinion-chain or worm-chain. The need for such stroke reducers is dictated by the fact that in pinion and worm gearboxes, the axle spacing between the drive shaft and the driven shaft is regulated by the dimensions of the transmission and directly depends on the engagement module and the number of teeth. In chain drives the distance between shafts can be adjusted by removing or adding links.
It is not always possible to arrange all parts of a power train in an ideal position when designing a powerpack, and so there is a need for an intermediate transmission. This function is successfully performed by a chain reducer which compensates for the distance from the pinion or worm gearbox to the wheel or drive shaft.
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What a stroke reducer consists of
Depending on the type of reduction reducer, a homemade travel reducer consists of the following main parts: input (high-speed) shaft, output (low-speed) shaft, worm and worm wheel, drive and idler gears or sprockets.
Drive sprockets and gears always have more teeth than driven sprockets. The auxiliary elements can be various couplings, bearings, keys. Gear and worm gears always have a housing, which is not the case with chain gears. They can either have no housing at all, or cover only part of the mechanism.