How To Disassemble The Dde E Trimmer
- What types of woods are
- How to remove or refill a fishing line in a trimmer
Since we considered the choice of the trimmer in the previous article, today we will tell you how to properly trim the trimmer with a fishing line, and which is better to choose based on the working conditions.
After you bought a trimmer and began to use it actively, sooner or later the question will arise about replacing the fishing line, since this is the most wearing element in the tool, then intensive use of the trimmer will lead to frequent replacement of consumables.
What types of woods are
The most common type of fishing line, which is suitable for almost all types of coils. Round cord. This is an ordinary fishing line suitable for mowing juicy grass, but mowing dead wood with it will be much more difficult, and even more so it can not cope with the bush.
As a rule, the diameter by which young grass can be mowed does not exceed 1.6 mm. The thicker the thread, the more coarse grass it can overcome.
There are fishing lines with sharp edges in the form of an asterisk or square, this option is more suitable for mowing dry grass just due to the existing sharp edges, but its disadvantage is more wear and tear and is inferior in strength to round cord.
There are fishing lines with improved aerodynamics with characteristic dents, scales and notches, such a product makes less noise, but they are used only on lawn mowers, since the exit of such a thread from the reel is difficult, it is used most often with discs into which segments are inserted. The disadvantage of this product is its fragility.
Most often in gas trimmers with an engine power of more than 1.5 hp apply cords with a metal cable inside.
This thread is ideal for mowing dry grass and small bushes. The presence of a core positively affects the wear resistance of this material.
The disadvantage of such a cord is its price, which is significantly higher than the listed opponents.
How to remove or refill a fishing line in a trimmer
It takes about 10-15 minutes to wind the line. What is a trimmer coil? Plastic case with a cassette inside, on which there is a special hook for convenient winding of fishing line.
Almost all trimmer coils have a similar mounting principle, this is the central screw-button, when pressed, it becomes possible to pull the fishing line of the required length. The photo below shows some examples of different coils for trimmers.
The bobbins of the trimmers, the motor of which is located near the ground, have a different mount to the axis of rotation, they have two buttons on the spool located on the sides that need to be pressed, otherwise the thread replacement is no different from other cassettes.
The principle of the correct winding of the fishing line is similar in all of the above cases, so for example, consider the standard version with two antennae.
To remove the reel with fishing line, it is necessary to unscrew the screw located in the center, but note that the thread there is left, so you have to turn it clockwise, this is done specially so that during operation it does not open under the influence of centrifugal force.
Next, using a screwdriver, disassemble the head and take out the reel, on which the fishing line is directly wound.
Having measured the necessary length and folded in half, you need to fill the fishing line into the reel, removing, in the end, its ends opposite each other (for this there are special slots for fixing).
After this, it is necessary to assemble the head in the reverse order by threading the ends of the cord into two corresponding holes.
If you have doubts or it’s not entirely clear how to charge the fishing line to the trimmer, we recommend watching the: how to wind the fishing line into the lawn mowing properly.
In this, the instructor will open the trimmer head in steps, measure out the required amount of fishing line, usually from two to four meters, and demonstrate assembly and installation on the trimmer.
We all have to engage in the refinement of personal plots of land. In the summertime and of course, to give a beautiful view of the plot:
- In the country;
- In a private house,
Before us is a photograph with the technical data of the electric trimmer. Trimmer repair will be accompanied by personal photographs with a detailed description of the repair.
Electric trimmer circuit
The electrical circuit of the trimmer with fishing line, simple, consisting of:
- Potentiometer; motor control speed;
- Capacitor
And directly to the electric motor itself.
The cause of the malfunction at the beginning during the visual inspection was incomprehensible, the trimmer had to be disassembled completely to determine the true cause of the failure.
Dismantling the trimmer
Proceed to disassemble the electric trimmer:
At the beginning, we disconnect the two connected halves of the trimmer, the control handle from the contact connection with the electric motor itself.
Two photographs \ photo No. 2, photo No. 3 \ shows the sequence of separation of the electric motor from the control handle.
Next, we need to check, perform diagnostics. Control knobs \ photo No. 4 \. We disassemble this part and carry out diagnostics for individual electrical connections \ photo No. 5 \.
Check with an indicator screwdriver
To check the electrical connections we need a simple tool. An indicator screwdriver.
Photo 6 shows a detachable contact connection from the control handle. To check the electrical circuit of the connections from the plug contacts \ photo No. 7 \ to the detachable contacts \ photo No. 6 \, for this, you can short-circuit the plug with the fingers of your left hand and, alternately, connect the indicator screwdriver tip to the detachable contacts.
With integrity, the absence of any gap \ photo No. 9 \ in the electrical connections, the indicator light of the indicator screwdriver will be lit, that is, the electrical circuit is closed on the LED lamp of the indicator screwdriver.
Performing this diagnosis, it is also necessary to close the contact of the potentiometer \ push contact \ as shown in picture No. 8.
We checked one half of the electric trimmer \ control stick \. The handle of the manual trimmer is in good condition and then we need to check the second half of the trimmer, consisting of an electric motor and a capacitor.
Diagnostics with a multimeter
We will need for such a check. A digital multimeter. You can also use a pointer multimeter or a device such as an ohmmeter. There is no difference at all.
We set the digital multimeter in the measuring range of the lowest resistance, connect the probes of the device to the socket of the detachable connection \ output contacts of the electric motor \. The device in this example \ photo No. 10 \ here shows a unity. The display of the device indicates a break in the electric circuit of the electric motor.
We need to look further at what could be the cause of the malfunction, and of course we will need to disassemble the two connected parts of the housing where the motor circuit is located directly.
Checking the collector motor
First, check the collector motor. We connect the probes of the device to the contacts of the graphite brushes \ photo No. 11 \, the display of the device shows the resistance as shown in the photo. 29 Ohms. The reading indicates the integrity of the stator windings of the collector motor.
We look further at what could be the cause of the malfunction. We conduct diagnostics of wires, output contacts of a detachable connection from an electric motor with contacts of graphite brushes.
We wrap two output contacts from the electric motor with the fingers of one hand and touch the contacts of graphite brushes with the tip of an indicator screwdriver \ photo No. 12, photo No. 13 \.
And when checking the data of the electrical sections, the cause of the trimmer malfunction is detected.
In the contact connection of the wire \ photo No. 13 \ with a graphite brush, the contact is broken. The elimination of such a malfunction does not present any difficulty. To do this, it is necessary to etch the contact connection with the wire and the contact connection with the graphite brush with soldering acid \ photo No. 14 \. Next, apply a small layer of tin with a soldering iron \ photo No. 15 \ and solder the wire with the contact of the graphite brush \ photo No. 16 \.
So, the cause of the malfunction of the “electric trimmer with fishing line” is installed and eliminated. As you have seen for yourself, such causes may be minor breakdowns that can be determined without any difficulty.
It remains for you all friends to wish a successful repair in troubleshooting various electrical equipment.