How To Replace The Spring On The Trimmer

Starter assembly

The assembly of the starter unit is carried out in a number of stages:

  • The coil is turned over, Installing it so that the spring bend exactly fits into the groove of the body, as in the photo below;
  • Two washers are laid, between which a spring is placed;
  • Put the cup with the Usyk in place;
  • Tighten the screw (photo below).

When doing the described manipulations, it is imperative to put two washers. If this is not done, the spring will eventually damage the plastic cup, and when it is pulled, it will begin to wedge. Because of this, there is a feeling as if the spring has flown off. To eliminate this drawback, you need to install this part of a greater length or an additional washer.

When such spare parts are not available, you can simply unscrew the screw a little, and the starter unit will start working without wedging. But this option is temporary. it is better to repair it with high quality as soon as possible.

How to assemble a starter?

The most important thing in the process of self-repair of a starter is to assemble it correctly.

After the spring is fully wound, you need to carefully turn the coil over and insert it into the starter housing so that the second spring hook enters the housing groove.

How to replace the chainsaw starter spring?

In order to replace the old spring in the disassembled starter, you must proceed in the following order:

  • Before installing the chainsaw starter spring, you will need to remove the mechanism holder. this should be done very carefully so as not to break the part;
  • Then you need to look inside the clip. in it you will see a spring wrapped around a C-shaped element. To remove the spring, fix the upper part of it with your finger and pull the starter handle slightly aside;
  • After removing the old spring, you need to wind up a new part. At the same time, try to avoid kinking and twisting of the new spring element;
  • To collect the chainsaw starter spring, you will need to act as carefully as possible, otherwise an equal incorrect movement can lead to unwinding of the part;
  • After you have managed to fully insert the spring into the starter, you must carefully fix the clip.

At the last stage, all that remains is to assemble the chainsaw starter and try to start the tool. It is quite possible that you will have to do 10 to 20 jerks. this is necessary in order for the spring to finally fall into place.

Removal and disassembly of the starter, replacement of broken parts

To repair the trimmer starter, you will first need to disassemble it and then assemble it. This process is NOT a particularly difficult task. For work you need a screwdriver with a tip of the desired shape.

Everything should be done carefully, observing safety precautions, mainly so that the spring, in case of accidental pouring, does NOT injure the master.

Replacing a torn cord

The torn rope is replaced in the following sequence:

  • The old cord is removed;
  • Choose the appropriate rope size (thickness and length)
  • Passing it through a special hole in the coil, tie a knot;
  • Charge the spring, produce the required number of revolutions;
  • Fix the handle.

It is better to stretch the spring plate together with a partner so that the edge of the wire does not reel into the starter mechanism.

Read more:  Why Trimmer Poor Starts

Assembling the starter on the trim tabs and winding the spring is not difficult, you just need to do it carefully and with care. For different models of lawn mowers, the breakdowns of the triggering mechanisms are the same, so they are repaired in the same way. At the same time, there are some nuances associated with their design features.

Installing the pulley (black in this photo), look through the hole in it so that the spring hook falls into the groove on the starter cover

Then, if there is a spring under the screw, we first install it, and not forgetting to put washers on the bottom and top of the spring.

Carefully insert the cup with the Usyk into the grooves of the coil and tighten the screw.

Make sure that the club that is on the spring does not fall out. Why is it important? The fact is that the spring scratches the plastic cup with its end, as a result of which the latter wears out and begins to press the screw more tightly against the coil. Replacing the lawn mower starter. For this reason, a situation may arise that is very similar to a spring break, the handle is pulled out of the starter, but does not come back. However, loosen the starter screw this problem disappears. It is easy to fix such a starter malfunction: just pick up a spring of the same diameter, but a little longer, or put an additional washer. If we just loosely tighten the screw, then it will twist and fly out, and this will already increase the likelihood of the spring breaking, since the pulley will not fit snugly enough against the starter housing.

We screwed the coil to the body, now we need to tighten the spring. Before this, it is necessary to remove the starter handle from the rope in advance. Starter device for lawn mowers Interskol MKB 4325. If the knot is too strong, then you can simply cut it off or try to untie it, for example, using a pair of pliers. This is done so that after you have cocked the spring, you can thread the rope through the hole in the starter cover. The other end of the rope must be secured in the reel even before it is inserted into the body, the rope must be wound onto the pulley before tensioning the spring DO NOT do this after.

Before charging the spring, estimate how many revolutions of the coil the rope should be wound. Let’s say the length of the rope in the starter of the Ada GroundDrill-5 motor drill corresponds to 5.5 turns around the reel. In this case, we make at least 6 turns of the coil in the direction opposite to the direction of winding.

So let’s get started. DO NOT reel, insert the rope into the groove in the reel specially designed for it. Replacing the lawn mower cord. Everything is ready, we proceed to tensioning the spring. To do this, rotate the coil counterclockwise in the direction opposite to the direction of rotation of the coil when winding the rope. It is more convenient to do this not in the knees, but pressed the starter with one hand to the floor, and with the other, turning the reel directly by the rope attached to it. If experience is not enough, then you can rotate the pulley itself with both hands, but the rope will get in the way, which can create additional inconveniences. Starter device for Husqvarna lawn mowers. After the required number of revolutions is made, threading the end of the rope through the hole in the starter cover, we put on the handle, securing it with a knot. It is more convenient to do this together with a partner, so that the end of the cable does NOT accidentally wind up inside the starter.

By the way, on your own, you can make some modifications to the design of the starter in order to more reliably fix the end of the spring inside the coil. Here, whoever has enough imagination for that. Now I will explain why this is needed. It often happens that the spring in starters of this type, after the first such self-repair and installation of the starter on the unit, flies off again after a few jerks. The hook does not hold in the coil groove. And this is despite the fact that the coil almost snugly adheres to the starter cover and the spring there certainly doesn’t have to hang freely up and down, and even more so until the spring leaves the engagement. It turns out that when the cable is pulled, the spring pulls out, pulls it out of the groove. In this case, you can do the following: cut out a narrow strip of metal, which, in thickness, could fit tightly into the groove of the coil along with the spring hook itself. So the hook will not dangle freely in the groove, which means it will not be so easy for it to break out.

Read more:  How To Fill The Trimmer Coil

A metal plate tightly inserted into the gap between the spring hook and the groove walls will securely hold the spring

Another solution to the problem: drill small holes in the coil on both sides of the groove and, insert the spring hook, fix it with a thin wire threaded through these holes. But here you need to manage to make sure that this wire does NOT touch the inside of the starter cover when rotating and does NOT slow down the pulley. Alternatively, loosely tighten the screw or replace it with a similar slightly longer length. Starter device for stark lawn mowers. You can think of an option with the installation of some kind of gasket between the lid and the coil.

Does your power tool starter design differ from the above? Faced another malfunction, or do you know the best way to repair a starter yourself? Ask questions, share your experience with other joint efforts, we can solve the problem of frequent starter breakdowns once and for all!

The device and principle of operation of the chainsaw starter

Most of the well-known chainsaw manufacturers equip their products with starters that work on almost the same principle. Its essence is as follows: in the groove of the saw body there is a handle through which the cord is passed. When the handle is suddenly lifted, the cord is also pulled out, which engages the drum, which is located in the Khrapov mechanism. By this, a spoked drum is driven, which is located on the shaft. During this, the crankshaft makes a couple of revolutions, which leads to compression of the fuel mixture, which at this moment is located between the cylinder head and the piston. When the handle is lowered, on the contrary, the ratchet and spitz loses their contact, which leads to a stop of the shaft.

With an increase in the power of the chainsaw, the amount of the fuel mixture increases, which should ignite when the chainsaw is started. In this case, increase the number of pulls on the cord to start the engine. To speed up the return of the drum mechanism, manufacturers use a special steel starter return spring with excellent elasticity. To make it easier to start a chainsaw, leading brands use other methods:

  • Pre-enrichment of the fuel mixture using a separate flap;
  • Installation of an automatic decompression valve, which provides a decrease in pressure inside the cylinder of the chainsaw;
  • Installing a primer designed to pump fuel before starting the engine.

The use of one of these technologies greatly facilitates starting and extends the life of the starter, which is especially noticeable at low temperatures.

Disassembly of the starter unit

The launch mechanism is disassembled in order to install new parts instead of broken ones in the following sequence:

  • Unscrew with a screwdriver the screw fixing the pulley with the starter cover;
  • Take out the spring and antennae;
  • Carefully remove the pulley (you need to turn your head away or work, wearing glasses and gloves beforehand)
  • Determine why the trigger is broken;
  • If the spring has collapsed almost completely, then it is replaced;
  • When the spring comes out of the hook, it is installed in its original place, bending the antennae in front of this (the photographs show the laying process)
  • After the spring plate is installed inside the groove, carefully twist it.
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Lawn mowers starter repair. Trimmer, CLUTCH SPRING.

4 months ago

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Country house mirrors

Lawn Mowers Starter Repair

Lawn Mowers Starter Repair

Installing or replacing the starter spring for lawn mowers, motor-drill, trimmer

But what if everything is in order with the rope, and the reel (pulley) of the starter does not unwind? Let’s look at this issue step by step using the example of the starter of the gasoline ADA GroundDrill motor-drill, which has a pulley with 2 metal tendrils for 2 hooks.

How To Replace The Spring On The Trimmer

In the case of other types of manual starters of an identical design, which are widely used in gasoline lawn mowers, trimmers and motor-drills, the whole process of repairing a starter will look the same, differing only in certain aspects.

Practical advice

In order for the holes for fixing the cord in the pulley and the body to be comparable, you may have to make a few more turns. A new rope is threaded into the technological hole and a loop or knot is made: this will allow it to slip out of the pulley. The rope is taken to the side so that it does not interfere with further work. Next, you need to fix the pulley.

First you need to reinstall the soft start spring. It can be used the old one if no damage is found in it. Or new if necessary. Floor springs set the starter clamp, which is fixed with a special screw. It reliably fixes the clamp for a long time, do not allow it to tilt and swing. After that, you need to make several turns of the rope and run it inside. The cover with the assembled starter is installed in place. Use screws to secure it.

After completing the repair and assembly, you can start working. Self-repair starter does not take much time and does not require complex skills, but it saves time and money if you perform such work in a service center.

It is necessary to approach the repair of a chainsaw responsibly and carry out preventive inspections in a timely manner, Monitor the quality of the fuel and oil used. These simple manipulations will increase the duration of the tool in working condition.

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Starter repair 043 How to assemble a trimmer starter.

How to assemble the trimmer starter at home How to wind up the starter spring and how to quickly make the trimmer starter yourself How to wind the trimmer starter starter rope starter cord on the trimmer information about repair and tool selection on our website www.Looktool. Ru come in we are glad to everyone.