How To Ring A Coil On A Lawn Mower

When spring comes, people often spend their free time in their summer cottage. With the onset of warm days, they try to rid their area of ​​problems such as weeds and grass. It is difficult to do it manually, especially if the area is very large, so a lawn mower will help. Thanks to this technique, you can trim the grass and remove weeds. This is a suitable device for mowing unnecessary plants near the fence, at home, between the rows in the garden on a flower bed and so on. Read about how to choose a lawn mower that is right for your needs. The cutting element in this device is a fishing line (strong polyethylene thread), which is wound on a special element. A reel. But over time, the fishing line wears out and there is a need for its replacement. The article will discuss how to refill fishing line in a lawn mower.

What kind of fishing line to choose to refuel the lawn mower

The thickness of the polyethylene yarn depends on the model of technology and varies from 1.2 to 4 mm. She may be:

  • With a round cross section. This is the most durable material for mowing herbaceous plants;
  • With curly section. Used for mowing soft plants;
  • Twisted. Used for thin grass;
  • Professional type, not suitable for all models of equipment.

To change the line on the lawnmower, you need to purchase a cutting thread, which will be ideal for a particular type of mower.

The device of the line in the mower

The arrangement of the element on which the kapron thread is wound is very simple. This element is called a coil. It has two “tracks”. The upper and lower. Between these paths there is a special partition with a recess. A fishing line is wound around these tracks. It must first be pulled through the recess.

Features of replacing fishing line on.

Replacement Instructions. How to Insert a Fishing Line

It should be noted that the coils in the mowers can be different:

  • For functioning with one antennae;
  • For functioning with two antennae;
  • Fishing line should be threaded through the through hole, which is located inside the element.

And do not confuse this part with an extension for a lawn mower on a reel, because despite the similar name they are two completely different elements.

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In the first version, it is very simple to wind the cutting element:

  • On the inside of the coil element there is a locking eye.
  • One antennae of the thread is inserted into it.
  • It is necessary to refill the kapron thread in the direction opposite to the rotation of the bobbin element.
  • It will take only from 2 to 4 meters of fishing line. When the winding process is completed, put the small end of this cutting element out and fix it in the groove, which is necessary to fix the fishing line so that it does not unwind during the operation of the mower.
  • If there is no special groove, then the end should be held by hand so that the cutting element does not untwist during further collection of the element.
  • At the last stage, it is necessary to thread the outer end of the thread into a special hole located on the outer part of the element. After that, the coil can be inserted into the mower.

When the roller works with two ends of a polyethylene thread, then the following steps must be taken to fill the line into the mower:

  • Inside, the reel will show how many recesses there are for winding (two or one). If there is one recess, then both ends of the thread will be laid along this recess. If there are two, then the antennae are laid out separately. Each in its recess.
  • It is necessary to rewind from 2 to 4 meters of polyethylene thread and thread its two ends into the hole.
  • Wind both threads in the same direction as the drum rotates.
  • When all the fishing line is wound, the ends should be fixed in the grooves or held by hand.
  • Both ends are threaded into the eye on the outside of the roller housing.
  • After that, the drum is assembled and inserted into the mower.

Tips and steps for replacing fishing line on a.

The coil element or roller may have a completely different design than the previous two options. The line can be threaded through the eye, which is through and located inside the reel. In this case, it is not necessary to disassemble the roller drum and manually wind the polyethylene thread.

The polyethylene thread is threaded through the hole and rotated by pressing a special button. This the button is located on the body and is designed to operate the equipment, to be able to produce fishing line as it wears.

Safety precautions

For quick and safe replacement of fishing line on the reel of the mower, safety precautions must be observed. Before removing the reel in order to wind the line onto the lawnmower, it is necessary to disconnect the equipment from the power supply (if the mower is powered by electricity). Here I want to mention the reliability rating of electric lawn mowers, which will help you choose a safe assistant.

Another important safety rule that must be observed is pressing the lock button. You can find out its location on the equipment body using the instruction manual. For example, the manual for a gasoline mower can be found here.

Do not forget that the cutting element must be adjusted. There is a tuning button on the unit body. If the process does not start automatically and the thread tension loosens, then the button is clamped and the line is pulled out of the reel with force.

Watch the instruction.


If there is a summer cottage or a large plot of land near your individual house or cottage, then for the convenience of cleaning grass and weeds, you must use a lawn mower. If you are thinking of choosing an electric lawnmower or gasoline, then click here and you will find comparative characteristics of different models.

Over time, the line on the mower wears out and requires replacement. This can be done independently. Choosing this polyethylene thread is necessary depending on the model of the mower. It is also worth watching about the remaining details of the unit, here for example you will find information about the Craftsman lawn mower knives, which also wear out and can lead to irreversible consequences.

The spool device into which the fishing line is inserted is very simple. But it differs depending on whether the spool works with one or two thread antennae. It is important to observe safety precautions when replacing fishing line in the reel.

Any equipment, especially gardening, working in rather difficult field conditions, requires maintenance. Even simple and minimal maintenance of it significantly increases the resource of work of this equipment, and makes the work itself simpler and more hidden. And the engines start up “half a bump”, and work powerfully and without rattling and rattling.

Such a minimal service to its equipment can be provided by its owner himself, without the need to take it to a specialized service. Using the example of this article, I will talk about the necessary work that needs to be done on a gas mower. For other lawn mowers, everything will be about the same.

How To Ring A Coil On A Lawn Mower

After last season and wintering in a cold shed, the lawnmower needs both cleaning and lubrication. External cleaning was done in the fall, before storage, but now it is necessary to carry out it more thoroughly and prepare the lawn mower for the battle with grass and weeds.

First of all, it is necessary to remove the protective covers from the engine of a gasoline lawn mower. This will provide easier access to the main nodes and facilitate the work. We will also be able to inspect the starter device, remove dust, dry grass particles and other debris from under the casing that interferes with normal cooling of the motor. And it, as you know, is airy and it is the cleanliness of the engine that affects its quality.

The engine cover (in my model MTD SP 48) is fastened with 4 self-tapping screws (pos. 1 in the photo). Pass the starter handle through the opening and remove the casing.

Now we can remove the starter device and gain access to the main engine components. To do this, unscrew the 3 screws that secure the starter starter and the flywheel fan cowl.

The starter is carefully cleaned of debris and inspect the starter cable. If it is damaged, you will have to change it to a new one, having disassembled the launcher itself. Light “disheveled” cable can be restored using any elastic glue (rubber, PVA). Those. One that would stick together the villi, but at the same time the place of gluing remained elastic.

Having removed the fan cowl, the cowl itself and the fan blades are thoroughly cleaned of debris using a hard brush with a long pile. Now let’s move on to the engine nodes.

Ignition system

The mower’s ignition system is designed like this. A permanent magnet is integrated in the engine flywheel. When it “flies” past the magneto poles (pos. 2 in the photo), the magnetic flux closes and an electromotive force is induced in the magneto coil. Using an electronic circuit, this pulse is shortened in time and a powerful pulse is formed, sufficient for electrical breakdown of the spark plug gap (item 1)

Namely, the quality of the spark provides ease of starting the lawnmower engine. Therefore, we do such operations.

First, unscrew the spark plug and inspect it. If in the previous season the lawnmower had to work hard, then it is better to immediately replace it with a new one, but if the old one still looks decent. The new one will still be better. Of course, first you need to check the gap between the electrodes of the candle. It is optimal to expose it by bending the L-shaped electrode to 0.5. 0.6 mm, no more. Otherwise, the magneto power may not be enough, and the spark will be either weak or it will not be at all.

Now let’s get magneto. If before that the lawn mower started without problems, then it will be a brain to clean and check the wires. If there were problems before, check the gap between the magneto and the flywheel. The smaller it is, the better the spark will be. But you can not press magneto close to the flywheel. There is an easy way to check and set such a gap. We take an aluminum beer can and cut a strip out of it. After loosening the magneto fastening and laying a strip of aluminum between its poles and the flywheel, we press the magneto and tighten the bolts. After that we take out a strip with pliers. I used this method many times and it always gave a good result.

Now we will examine the brake system. (item 3 in the photo). It is designed to quickly stop the engine when it is turned off. The brake pad is pressed against the flywheel of the motor, while simultaneously closing the ignition wire to ground.

Of course, both the block and the flywheel should be beaten clean. If necessary, the brake pad is replaced or adjusted. The cable and brake spring are also cleaned and lubricated. It is convenient to use grease in aerosol cans.

Changing the oil in the crankcase. It must be produced according to the instructions for the gas mower, but at least once a season, even if you mowed a little. Because the oil is oxidized and its lubricating properties deteriorate.

To drain old oil, the lawn mower is tilted towards the drain hole (item 1 in the photo), placing a block of wood or something else under the wheels. In order to prevent the old oil from draining into the protective casing, a small groove is cut out of the plastic bottle along which the old oil drains into the installed container without staining the casing. When all the oil drains, the hole is closed and new oil is poured through the oil filler neck to the required level. Use oil with a viscosity recommended by the manufacturer. Usually it is 10W40 for 4-stroke engines. It makes no sense to use more liquid and expensive grades, since the engine does not have an oil pump and lubrication is done by oil mist. And the operation of the lawn mower occurs at positive temperatures. And expensive oils show their properties only in extreme situations.

Assembly and installation of all casings is carried out in the reverse order.

The final stage of the “inspection” is the revision of the knives. At various forums one can meet mutually exclusive opinions, sharpen them or not sharpen them. I am a supporter of “do not sharpen.” Of course, if there are bulges and bends on them left by stones that you tried to mow, then they must be removed. But to sharpen the edge to razor sharpness does not make any sense. And the arguments here are. Firstly, for example, the trimmer’s fishing line is generally round. And nothing, he cuts the grass perfectly. Secondly, the grass itself is better when it is not cut, but plucked. The cut off grass tip usually turns yellow and dries. And nipped off. Quickly overgrows, healing the wound. And thirdly, no matter how you sharpen your knives, after half an hour of work they will go into their normal working condition. Those. It will be the edge of the metal with a rounding of 0.5 mm in diameter. In this state, they will be workers for a very, very long time. The knife cuts the grass with the force of impact, inertia, and not sharpness. Therefore, only the most visible burrs with a file or an abrasive bar should be removed from the knife, and this will be enough.

Well, that’s basically it, our lawn mower is ready for summer work.