Benzotrimmer is not gaining momentum cause

Features of the trimmer

All trimmers are classified by type of power: gasoline or electricity (mains or battery). It should be noted that gasoline mowers surpass their electric and battery counterparts in many respects. While they all perform similar functions, the differences in performance, agility and efficiency are very noticeable. However, the general principle of operation of all types of hand-held mowers is almost the same. the machines are equipped with motors (two- or four-stroke internal combustion engines or electric motors) that drive the cutting unit (a spool with a fishing line or a metal disc). All elements are fixed to a straight or curved bar, including a trimmer handle, on which the main buttons are located.

Since the problem of low revs is more common with petrol trim options, they will receive more attention. So, the brushcutter is very comfortable to work and unpretentious in maintenance. over, most of its malfunctions are caused by the user’s ignorance of elementary things, which are written about in the instructions. Therefore, before starting to operate the unit, you must carefully study the manufacturer’s manual. In particular, to start the engine, the following steps must be taken:

• turn on the ignition button;
• press the silicone button several times to pump gasoline;
• close the air damper;
• set the throttle lever to the high speed position;
• first make light jerks with the starter handle to feel the resistance of the engine, then jerk sharply.

If the brushcutter starts up, but stalled, you need to put the air damper in the middle position and try again. When the engine starts working, you need to slow down the gas and open the air damper, since the trimmer functions only on suction.

Important! Trimmer operation depends on various environmental influences. In hot weather, the unit should be given more time to cool down. When operating in dense thickets or tall vegetation, the engine also overheats. It is necessary to take five-minute breaks every 15-20 minutes.

The trimmer does not gain momentum. what to do

Any person who owns a summer cottage or land plot is well aware of the problems of dealing with excess vegetation. Now a trimmer has come to the rescue, which has successfully replaced the usual braid in this field. This unit is very convenient in operation, but it, like any mechanism, tends to fail due to difficult working conditions or incorrect operation. Situations when the trimmer does not pick up speed are quite common. To understand this problem, it is necessary to understand some aspects related to the operation of the apparatus.

Fuel system

For the trouble-free operation of the petrol trimmer, the functioning of the fuel system is of great importance. Gasoline passes through all its assemblies and parts, so they should be cleaned regularly. In addition, only high quality fuel must be used. To prepare a combustible mixture in a two-stroke engine, motor vehicle oil cannot be used, since it has insufficient qualities.

Filters

A clogged air filter is another reason for the unreliable operation of the device. To check the involvement of this element in the malfunction, you need to start a petrol cutter without it. A dirty filter can be washed in gasoline, dried or replaced with a new one.

A clogged fuel filter does not allow fuel to enter the cylinder, and the engine stalls at full throttle due to an elementary shortage of gasoline. This element is located inside the tank on the intake hose. To fix the problem, instead of the old filter, put a new one on the hose or thoroughly rinse the one that was removed.

Advice! If you try to remove the plug in the tank, the hose and filter may fall into the tank. You can get them with tweezers.

Carburetor

This mechanism is an important part of the petrol trimmer. In order for the carburetor to work properly, several conditions must be met:

• disassemble and clean it from time to time;
• adjust the idle speed according to the instructions;
• seek the help of the wizard when adjusting.

In the event of a breakdown of this unit, you can do its repair yourself, but only if you have certain knowledge.

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One of the reasons for poor carburetor performance is a loose cable. To eliminate the problem, you first need to disassemble the entire assembly, and then, after thoroughly rinsing all the parts, lubricate and tighten the cable, but not very much, so as not to stretch.

Important! Other malfunctions can also adversely affect the operation of the carburetor: failure of the inlet needle, deformation of the membrane, wear of the adjusting lever, contamination of the control cavity, wear of flaps.

When to contact the workshop

If the device is under warranty, at the first signs of incorrect operation it can be safely taken to a specialized workshop. The repair will be done free of charge, regardless of the nature of the damage, if it happened not through the fault of the owner. In case of engine breakdowns, a person who is ignorant of technology is better off immediately contacting a specialist. In any case, the severity of the unit malfunction is determined by the user.

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Summarize. Both gasoline and electric trimmers are built to last years of dependable performance. Most of the problems described above occur due to the owner’s insufficient attention to his assistant. Subject to strict adherence to the manufacturer’s requirements and regular maintenance, the hand mower will work rhythmically and without interruption.

Motor

The engine is the most important part of any machine. There are several reasons for ICE breakdowns:

• incorrect proportions of oil with fuel (for two-stroke);
• old fuel mixture;
• wear and destruction of the piston ring;
• traces of scratches on the cylinder and piston;
• operation of the device for wear.

All this leads to the fact that the engine either does not start or stalls.

Important! If all other parts and trimmer assemblies can be repaired by hand, then you need to be extremely careful with the motor. It is better to entrust this work to a specialist. The piston, oil seals, cylinder, rings can be repaired.

External factors

Several factors not related to its breakdown affect the decrease in the speed of the petrol brush:

• contamination of the filter due to the ingress of particles of dirt and dust;
• use of low-quality fuel;
• improperly prepared mixture (relevant for trimmers with two-stroke gasoline engines);
• contamination of the muffler mesh with vegetation particles, soil elements and other objects.

In this case, in the second and third cases, carbon deposits form in the combustion chamber, and the carburetor elements become clogged.

Motor

The engine is the most important part of any machine. There are several reasons for ICE breakdowns:

• incorrect proportions of oil with fuel (for two-stroke);
• old fuel mixture;
• wear and destruction of the piston ring;
• traces of scratches on the cylinder and piston;
• operation of the device for wear.

All this leads to the fact that the engine either does not start or stalls.

Important! If all other parts and trimmer assemblies can be repaired by hand, then you need to be extremely careful with the motor. It is better to entrust this work to a specialist. The piston, oil seals, cylinder, rings can be repaired.

Features of the trimmer

All trimmers are classified by type of power: gasoline or electricity (mains or battery). It should be noted that gasoline mowers surpass their electric and battery counterparts in many respects. While they all perform similar functions, the differences in performance, agility and efficiency are very noticeable. However, the general principle of operation of all types of hand-held mowers is almost the same. the machines are equipped with motors (two- or four-stroke internal combustion engines or electric motors) that drive the cutting unit (a spool with a fishing line or a metal disc). All elements are fixed to a straight or curved bar, including a trimmer handle, on which the main buttons are located.

Since the problem of low revs is more common with petrol trim options, they will receive more attention. So, the brushcutter is very comfortable to work and unpretentious in maintenance. over, most of its malfunctions are caused by the user’s ignorance of elementary things, which are written about in the instructions. Therefore, before starting to operate the unit, you must carefully study the manufacturer’s manual. In particular, to start the engine, the following steps must be taken:

• turn on the ignition button;
• press the silicone button several times to pump gasoline;
• close the air damper;
• set the throttle lever to the high speed position;
• first make light jerks with the starter handle to feel the resistance of the engine, then jerk sharply.

If the brushcutter starts up but stalled, you need to put the air damper in the middle position and try again. When the engine starts working, you need to slow down the gas and open the air damper, since the trimmer functions only on suction.

Important! Trimmer operation depends on various environmental influences. In hot weather, the unit should be given more time to cool down. When operating in dense thickets or tall vegetation, the engine also overheats. It is necessary to take five-minute breaks every 15-20 minutes.

Causes of Slow Trimmer RPM

If users complain about the trim tab that does not pick up speed, it means that it works fine at idle, and when you press the gas, it does not develop the necessary power. This can occur as a result of a long idle device without activity. These problems are typical for gasoline vehicles, including Husqvarna 128r, Stihl FS 38 and Hitachi of various modifications.

When working with the trimmer, you need to monitor its behavior all the time. a drop in speed and unusual noises signal a malfunction in the unit. Sometimes you give the gas, and the trimmer floats. In such cases, the work should be immediately suspended, the mechanism should be allowed to cool down and the search for possible problems should be started. They can be of a different nature, both a technological plan and external factors associated with the conditions and features of the operation of the apparatus.

Diagnostics and elimination of gas engine problems

Before proceeding with the repair of a particular unit (part), it is necessary to determine the nature of the malfunction. Step-by-step diagnostics and troubleshooting. more.

Diagnostics and elimination of problems of electric motors

Malfunctions of electric trimmers can be as follows:

• insulation violation or cable break;
• malfunctions in the area of ​​the cutting tool;
• damaged socket or plug.

To cope with these breakdowns, you do not need to disassemble the entire apparatus.

On a note! Before starting the repair, it is important to prepare the necessary tool: a set of screwdrivers, a tester, a soldering iron, an indicator, a set of keys.

In case of serious engine malfunctions, you will have to disassemble it. To do this, you need to unscrew a few screws. Having gained access to the details of the motor, you need to carry out the following actions:

• check the degree of wear of the brushes. unsuitable parts will need to be replaced with new ones;
• ring the motor winding. the resistance must be high;
• check the stator and rotor. to test the rotor winding with a multimeter, measure the resistance: large deviations from the norm indicate a malfunction, the absence of resistance on the stator winding also indicates a breakdown (in a similar way, the stator case is diagnosed).

Advice! Solving problems associated with faulty electrical components is fraught with difficulties. It is often easier to replace them with new parts than to waste time on rewinding.

Low rp problems are common with cheap trimmers. However, manual mowers such as the Huter, Patriot 3055, Echo suffer from this if they are not properly maintained.

Filters

A clogged air filter is another reason for the unreliable operation of the device. To check the involvement of this element in the malfunction, you need to start a petrol cutter without it. A dirty filter can be washed in gasoline, dried or replaced with a new one.

A clogged fuel filter does not allow fuel to enter the cylinder, and the engine stalls at full throttle due to an elementary shortage of gasoline. This element is located inside the tank on the intake hose. To fix the problem, instead of the old filter, put a new one on the hose or thoroughly rinse the one that was removed.

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Advice! If you try to remove the plug in the tank, the hose and filter may fall into the tank. You can get them with tweezers.

For some reason, the electric braid Calm does not develop its full power

When using the electric trimmer, rpm problems can also occur. The reasons here are completely different than those of the fuel braids.

You can troubleshoot yourself

Electric trimmer does not develop the required power, because:

To adjust the voltage, you should first check its power. If it does not meet the standards, you should increase it with a stabilizer.

Repair of the soft start system is carried out only in the service center.

Note! If the brushes are worn out, you just need to replace them. When installing new ones, it is recommended to clean all surfaces with which they come in contact.

To adjust the voltage, you should first check the power.

If the motor windings are burning, you need to change the electric motor.

Jamming of parts of rotation can occur for various reasons. To eliminate them, you should revise the entire drive assembly.

For your information! The latter problem may arise with another unit of this company. the Stihl secateurs, and sharpening the disc with scissors will be its solution.