DIY repair of a walk-behind tractor mole

It will be about repairing a mole cultivator. They asked me to repair a 94-year-old mole, which did not even work in the running-in hours (20 hours). When you try to start it, it shoots a couple of times and can even work for a couple of seconds. While I'm sinning on the ignition system. Maybe someone knows how to check it (there is a spark, but rather weak) and what problems may arise with the magneto.

wrote:
Maybe someone knows how to check it

In shops (?) And in the markets, the sellers of spare parts for Russian technology have a device for checking the magneto, remove and take it, they will check the sparking. I checked my last modification of the magneto in the Kiev market. I think in other markets the merchants have it (adapted)

Check out the magneto! With long interruptions in operation, the magneto coil becomes unusable.

TM wrote:
... the magneto coil becomes unusable.

I was lying for 5 years with a punctured thyristor

, kirdyk rarely comes to the coil, before the conductor dies. I changed the thyristor and it all worked

According to the instructions, it is necessary to pour M8V in a ratio of 1:20, but the old mole in the new instructions for similar models of moles can be used MGD14M 1:40. Is it possible for me to pour gasoline with MHD oil into the mole and in what proportion to pour it.

wrote:
Is it possible for me to pour gasoline with MHD oil into the mole and in what proportion to pour it.

Need to! Fuel oil is excellent and time-tested. M8 - kills motors slowly but surely.

The spark was gone, the magneto was checked in the store, everything is fine! What could be. Can flywheel magnets demagnetize? what is the problem?? Tell me who knows! Thanks!

Spark can be lost due to high voltage wire and / or cap. I advise you to try at the beginning without a cap. If you do not feel sorry for yourself, you can use your hand as a candle (this is more reliable, you will notice even the weakest spark).

Who knows, tell me how to make the gap on the new piston rings.

Lock gap?

similar to a motorcycle, 0.2-0.35 mm

There will also be such a question: the instructions say that the ignition angle should be 19 degrees to TDC. It is easy to translate into mm, but I do not know at what point the spark is formed. How to determine by the position of the magneto rotor at what moment the sparking will occur.

This place in the manual has always touched me

.
Sparking was discussed here like, for memory : when the coil is opposite a magnet with reverse polarity

I almost forgot

At the factory, when checking for MB-1 blocks, they pose a risk for the moment of sparking

There is a risk. But on the carter it is at the top, and on the magneto at the bottom. And there is no way to set it exactly.

” >
Well saved photos

, 16 risk post on the MB-1 case relative to the fastening screw

There is a motor-cultivator "Mole" MK-1A-01Ts. Replacement of the carburetor is required. It has a K-41K type carburetor. Question: is it possible to replace it with a K-60 carburetor, and what limits will be required?

Friends.
After wandering through the pages of the forum, I proudly noted that among us there are a lot of owners of this hardworking, unpretentious and very easy-to-use * iron horse *

Such an irreplaceable helper in the garden and vegetable garden. That's just, everything that is connected with its operation is scattered on different topics. And sometimes, it is quite difficult to find answers to questions of interest to all of us, on how to operate, maintain, add. equipment, tuning purchase of spare parts and so on.
I propose to create a separate branch dedicated to the * KROT * motor cultivator * of its various modifications, and in it to discuss everything that interests us so much.And the Lord Moderators, to transfer into it everything that is connected with it - from other topics.

Motoblock is one of the most important types of agricultural machinery. They are used in almost all types of work related to land cultivation. Each land owner chooses the most suitable model for himself. Consider a walk-behind tractor from the Mole company, which is quite popular in the agricultural sector.

The Krot walk-behind tractor has long occupied a good and solid position in the agricultural machinery market. Many summer residents and landowners use the technique of this particular model. In order for the unit to work for a long time and provide a high-quality result, each device needs decent maintenance: change fuel and lubricant (use only high-quality technical fluids), before starting work, take into account that the Mole walk-behind tractor engine needs a trial run. It is necessary to regularly diagnose the unit for breakdowns, timely replace worn out, outdated or broken parts.

1. Contactless ignition.
2. Fuel tank rated for 1.8 liters hot.
3. The presence of an air filter that prevents foreign particles from entering the engine mechanisms.
4. Carburetor model K-60V.
5. The starter, which is located on the frame, works from a manual start.
6. The engine is 2.6 liters, giving 6 thousand rpm at maximum power.

Of course, time and stress do their job. Any walk-behind tractor, even the highest quality one, sometimes needs restoration or replacement of component parts. A special part of the unit is the engine, and its repair is brought to the fore in any case. You can carry out repair processes with an engine with your own hands.

To replace the gearbox oil seals yourself, you need to stock up on a fair amount of tools. From the first time, you may not understand which part is the oil seal, but it will immediately become clear when oil begins to flow from it.

One of the most capricious mechanisms is the kickstarter. To repair the kickstarter, you will need to purchase lubricant, arm yourself with a tool, remove the cover on the variator, unscrew the bolts on the starter and get it out. After that, the part is inspected, consumables (oil seals, gaskets) are changed, the product is lubricated and installed back.

It will also be difficult to replace the rings in the engine. Here you need to have the technical skills and experience with the parts of the walk-behind tractor. The following scheme will help in the repair.

Due attention should be paid to the accessories for this unit. It is necessary to select it correctly, since it gives a certain load to the engine. The plow or reversible plow is the most commonly used accessory. All the nuances should be taken into account when working with them.

If you decide to completely replace the engine, you can install an electric kit (electric type of motor mechanism). It is better to use imported engines: their quality is usually much higher.

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Tillers play an important role in rural life. After all, it has become not only much easier to process areas with such units, but also much faster. And using attachments: plow, cultivator, etc. such a unit has completely turned into a mini-tractor. This is precisely what caused their immense popularity in our time.

This technique, like in principle any other, sooner or later fails. There may be several reasons for this:

• Incorrect operating conditions.
• Wear of parts.

In this article, we will analyze several cases of breakdowns of the Mole walk-behind tractor and the essence of their repair. We will tell you how to make repairs with your own hands, and what spare parts for the walk-behind tractor we need.

Spare parts for the walk-behind tractor can be easily replaced in case of wear. In addition, finding them today is not a problem at all. Today there are a huge number of spare parts for a walk-behind tractor in many online stores. There you can find any part for the engine, as well as for attachments (plow, rotary tiller, etc.).

The main failure of oil seals is that they leak oil. In this case, you need to urgently replace them. In addition, such a part is quite inexpensive. After all, if the oil from the gearbox of the walk-behind tractor flows out completely, then the walk-behind tractor will simply stall and be defective. How to replace oil seals:

1. We first need to remove the cutters from the power take-off shaft.
2. We clean the PTO shaft and covers from oil and dirt streams, debris.
3. Remove the cover. To do this, unscrew all the fastening bolts, tap the cover and only then can we remove it.
4. We are replacing the oil seal.
5. Wipe the connector dry.
6. If necessary, sealant can be applied to the connector.
7. We attach the cover in place.

The most common cause of manual kick breaks is unbent spring attachment points. Sometimes there are times when you need to replace the starter cord. To find out the real reason for the breakdown of the kickstarter, you need to disassemble part of the walk-behind tractor.

Before proceeding with the repair, you need to acquire its circuit, which you need to rely on when disassembling. So let's get started:

• We remove the kickstarter block.
• In front of you there will be a drum, in the center of which there is a washer, you need to unscrew it.
• Next, we remove other fasteners and carefully check all the details.

What can be the breakdowns of the kickstarter:

• reeds do not work;
• the cord broke;
• the hook in the center of the reel is torn off;
• one of the ends of the spring has unbent.

If the cord is torn, it must be replaced with a new one. There are 2 hooks at the ends of the ring spring. If one of them does not have this, you need to warm up the metal and bend it with a crochet. It is also possible that the spring ring can be completely replaced.

How to make and correctly equip the reverse speed on the Mole walk-behind tractor?

1. Take a pulley from the Volga, for example.
2. We unscrew the nut, put the elongated nut.
3. An elongated nut tightens the primary pulley, which is standard.
4. Then we screw the bolts into this nut, and thus the second pulley from the Volga is pressed.
5. We use the pressure roller from the timing belt tensioner of some foreign car.
6. We attach 2 springs and a cable.

That is, in principle, the whole scheme of such a design. It is worth noting that even plow-type attachments will not interfere with the rear speed, and with any canopy, the traction will be excellent, be it a plow or a rotary tiller.

As for the repair or modernization of the ignition on the Mole walk-behind tractor, in this case we suggest contacting specialists, since these malfunctions cannot be called simple. In them, you need not only to be well oriented in the diagrams, but also to know how to connect all the parts in such a way that the ignition is serviceable.

But still, if you understand this area, then you can safely proceed to modernizing the ignition with your own hands. First of all, prepare all the necessary spare parts for the walk-behind tractor, which will be needed for repair. What is needed for such a revision:

• We take an ignition coil, it is possible from a car, with a multiple reserve and several times more powerful than the previous spark.
• We mount the ignition coil on the steering plate on the Mole walk-behind tractor.
• In place of the native coil, we install the second generator.
• Install the flywheel with 4 magnets. Moreover, each coil of the generator has its own diode bridge.

All owners of walk-behind tractors should remember that by adhering to all the conditions for servicing walk-behind tractors, you can extend the life of your unit. The same applies to timely continuous diagnostics of equipment and regular oil changes. By doing this work, you can easily ensure a long service life of the Mole walk-behind tractor. And in case of breakdowns, finding spare parts for both the canopy and the Mole walk-behind tractor (plow, cultivator, etc.) will not be a problem.

Buying a cultivator greatly simplifies the process of performing summer cottage work of a various nature. It's not a secret for anyone that such equipment can break down and still breaks down. So that the summer resident does not have to buy a new unit, he must understand how to independently repair the cultivator. Let's discuss this issue later in this article.

All working components of cultivators during their operation are subject to rather heavy loads. For this reason, they need regular inspection and repair. First you need to configure the ignition and fuel pump systems of the unit. Indeed, in the winter period of time, he was idle "without work", which can cause problems with starting the engine. It is also worth checking the transmission. Remember, negligence at this stage of work can lead to serious breakdowns and the need to overhaul the cultivators.

To do it yourself, you need to mature at the root of the issue. That is, to understand the cause of the malfunction, and in which unit of the apparatus it arose.

Conventionally, all breakdowns of equipment of this type can be divided into two groups:

• breakdown of the engine of the apparatus;
• breakdown of other parts of the equipment.

According to the reviews of experienced summer residents who use Texas or Mole cultivators on their plots, problems of the first group are more common. How to carry out repairs yourself will become clear if you read this article to the end.

To repair the cultivator engine, as in the following photo, you need to determine the root cause of the problem. There may be several: let's discuss each option.

1. In cases where the engine of the apparatus does not start at all, perform the following sequence of actions:

• Turn on the ignition;
• Check the gasoline level;
• Open the fuel cock;
• Check carefully the air damper of the Texas walk-behind tractor carburetor: it should be tightly closed if you start a cold engine;

1. The motor of the Mole cultivator does not give power due to such problems:

• The air filter is clogged: repairing the cultivator with your own hands will be reduced to cleaning it;
• The muffler is clogged: it should be disassembled and washed;
• The carburetor of the Mole cultivator is dirty: it needs to be dismantled, cleaned and adjusted.

You will need to repair the cultivator gearbox if its operation is accompanied by increased noise. A similar phenomenon is typical in the case of a lack of oil. Add it to the gearbox of the device, or better, replace it altogether.

Also, noise can arise due to the "loosening" of the fasteners of the nodes: inspect and fix them with your own hands.

In addition, summer residents may face the problem of oil leakage from the gearbox. This can occur due to wear or improper installation of the seals of the bearing units, with poorly fixed covers and deformation of their accompanying gaskets. Replacement and subsequent high-quality installation of oil seals, self-replacement of gaskets and fixing of cover fasteners, as well as high-quality cleaning of the breather will help to eliminate such a leak.

Do not forget to timely change those parts of the Texas gearbox that are more susceptible to wear and tear during the operation of equipment of this kind.

Excessive vibration of the device during its operation is typical for those cases when the summer resident has poorly performed the adjustment of the attachments of the attachments. Stop the equipment the minute vibration is noticed and adjust the attachment parts accordingly. If the fasteners are worn out, they will need to be replaced with new ones.