How to Adjust Ignition on a Patriot Lawnmower
The trimmer is a convenient and affordable replacement for the lawn mower. Its cutting part is made in the form of fishing line, knives or disc mounted on a drum, which is covered with a protective cover on top. The basis of the design is a rod, which is adjustable in height, at the end there is a convenient handle and a shoulder strap.
Like any other technique, the trimmer may break unplanned, and so that the breakage does not lead to the final failure of the tool, we suggest that you familiarize yourself with this article. The unit can break down for various reasons. Failures occur both with new trimmers and those that have long been in use.
Possible malfunctions of the trimmer and methods for their elimination
How to repair the trimmer yourself?
We managed to deal with the most common malfunctions of the trimmer, now it’s worth finding out another important point: what kind of breakdowns can you fix yourself and how to do it, and which ones should you contact a service center immediately?
Trying to solve the problem yourself:
- If the wire limiter has fallen from the mowing head, then it can be wound in place with copper or aluminum wire, or you can not do this, but then it is worthwhile to do the work more carefully, avoiding the possibility of a cut;
- If the on-off button has sunk, armed with a soldering iron, you can replace it with a new one;
- If the bar breaks, you can also reanimate it yourself;
- If the fishing line is torn or over, buy a new roll of the desired diameter, then disassemble the drum and wind it on a bobbin;
- If you feel vibration during engine operation, then it is time to lubricate it with oil. This procedure needs to be done approximately once a year.
Now we will consider possible breakdowns of trimmers, which are better to contact the service center:
- If the tool engine fails for an incomprehensible reason for you, it is better not to undertake repairs. Perhaps you will not be able to assemble it back or there has been a serious breakdown, taking up the repair of which, you will finally disable the unit;
- Repair should not be started on your own if the indicated solution path fails to eliminate the malfunction.
Remember! No matter how you try to repair the trimmer at home, sooner or later you will have to contact a service center, because any equipment is not eternal, but you can still extend its service life. Qualified specialists will carry out diagnostics and will be able to identify the true causes of the breakdown.
Stall Trimmer: Causes and Troubleshooting
lawn mowing is a mobile high-performance tool for the refinement of household plots and surrounding areas.
During long-term operation due to wear of parts or manufacturing defects, malfunctions arise that lead to the fact that the trimmer stalls or does not start.
Since this tool is a rather complicated mechanism, there can be several reasons why the lawn mower stalls.
Why does the trimmer stall
There are two main ways to solve problems: transferring the braid to a specialized center or do-it-yourself solution. The first option is suitable for those who are ready to pay a “tidy” amount to restore the unit’s performance, and the second is for someone who has basic locksmith skills and can independently understand the causes of breakdowns and how to fix them.
Currently, it is customary to classify breakdowns by which the lawn mowers stall into the following categories:
- mechanical damage to the engine crankcase, cylinder piston group (CPG) malfunctions;
- breakdowns associated with the supply of the fuel mixture (air filter, carburetor);
- malfunctions due to damage to tubes, hoses, cables or the ignition circuit.
The mowing stalls when you press the gas
Lawn mowers gas key
As practice shows, in most cases the cause of engine shutdown is carburetor misalignment, associated with long-term storage or use of the tool in an aggressive environment (temperature extremes, high humidity, dustiness), high loads or wear of individual parts. The characteristic signs of the need to adjust the carburetor include increased vibration. If you have experience repairing the fuel system of gasoline engines, you can fix the problem without any problems, otherwise you can read the detailed instructions for setting up the carburetor.
Hole in the fuel cap (breather) trimmer
The second possible reason that the trimmer stalls when you press the gas is a clogged hole in the cap of the fuel tank (breather). If small particles of dust, grass and sand remain in it, a vacuum is created in the gas tank, as a result of which the fuel ceases to enter the carburetor. You can clean the gas trimmer’s breather with a regular sewing needle and then blowing it with compressed air. Experts recommend that at the end of work once a few mowings, clean the breather. If cleaning is not possible, the cover must be replaced.
Lawn mowing fuel valve
With a similar problem, it is worth paying attention to the fuel valve, which, when clogged, ceases to normally pass the fuel mixture. By solving this malfunction, weaken it with a suitable tool. In addition, the problem with the circulation of the fuel mixture may lie in the contamination of the valve. To do this, just blow it with a stream of compressed air.
lawn mowing stalls at high engine speeds
During operation, a situation arises when, when you press the fuel mixture supply key, the engine speed does not increase but decrease. A malfunction of this nature may be caused by:
Fuel Lawn Mowing Hoses with Filter
- etching of atmospheric air into the combustion chamber;
- problems with the circulation of the fuel mixture;
- blockage of the breather in the cap of the fuel tank (cleaning the hole with a thin sewing needle);
- incorrect carburetor adjustment.
When air leaks during ICE operation, it is necessary to check the tightness of the pipe connection and the integrity of the gaskets in the CPG. The problem with the circulation of the fuel mixture can be solved by eliminating blockages in the fuel pipes leading to the carburetor. If there is a vacuum in the tank and the fuel mixture does not enter the carburetor, it is enough to clean the breather with a thin needle and blow it with air.
The gas trimmer stalls idling
Often when the speed is reduced, the lawn mowing engine stalls and does not support idle when restarted. The main reasons for the occurrence of such a breakdown include pollution or deregulation of the carburetor, as well as clogging of the air filter.
Idle petrol trimmer stalls
If the carburetor is not optimally tuned, it must be cleaned and re-adjusted.
The clogging of the trimmer’s air filter can be dealt with by placing it for several hours in a solution with ordinary household detergent.
If self-cleaning did not help to cope with clogging, it is better to purchase a new filter element in accordance with the instruction manual.
After the events, the user for a long time will not encounter a situation where the trimmer stalls at idle and only functions when gas is supplied.
The trimmer starts and immediately stalls
- Many owners of gardening equipment face the problem of stopping the trimmer engine after starting it.
Masters in repairing gasoline tools are sure that the matter lies in the fuel system, and more precisely in the carburetor.
As a result of a violation of its settings, an uneven supply of fuel occurs and, as a result, increased vibration and engine shutdown.
Trimmer Ignition Module
Another reason why the trimmer starts and immediately dies can be attributed to a clogged fuel valve. To restore gasoline circulation in the fuel system, it is enough to dismantle the valve and eliminate pollution.
Trimmer stalls: causes and troubleshooting was last modified: July 22nd, 2018 by admin
Self-repairing lawn mowers
Repair of lawn mowers is carried out taking into account the principle of operation and the causes of damage to the unit. often, the device fails after 3-4 years after active use.
Lawnmower repair is necessary in the following cases:
- the device does not start;
- the unit dies quickly after starting;
- the motor does not work at full power.
Reasons for the malfunction
Reasons for mower failure:
In the first case, you will need to replace the case, handles, knives and wheels for lawn mowers. When the knives are locked, the unit stops mechanically. Such a breakdown is associated with an attempt to mow hard or tall grass. Repair of the mower consists in freeing the cylinder from the stuck grass and scrolling it in the other direction.
When operating a lawn mower with a blunt or damaged knife, the grass mowed unevenly. In this case, the device may vibrate or stop abruptly.
In order for the device to work properly, it is recommended to sharpen the knives with a file (30 ° angle). Otherwise, abrasive tape is used. The gap should be between 2 blades, touching the strip. The device turns on periodically (for 15 seconds). If the knives are sharp, then the strip is removed, the gap is adjustable.
If the knives are not in the correct position, the cylindrical lawnmower makes abrupt and uncontrolled movements. Normally, the gap between the cutting elements should be thinner than a sheet of paper. Otherwise, the clearance is adjusted.
It is preliminary recommended that you study the instructions for the device, unplug the plug. With a loose connection, a whistle appears. The device vibrates and rattles. Repairing a lawn mower means adjusting bolted joints.
If the belt breaks or stretches, then it is necessary to replace it. To do this, loosen the screws. Then the pulley moves, the belt is removed. A new part is worn on a small, and then on a large pulley. The gear returns to its original position. The next step is to check the tension of the new belt. Deflection should not exceed 4 mm.
Faulty electrical models
The reasons for the unexpected disconnection of the electric lawn mower are due to a break in the cord or lack of current. In the first case, it is recommended to check the cable for an open. To replace the power cord, you will need to unplug the plug from the outlet, open and remove the switch cover.
Before unscrewing the cable clamp plate? it is necessary to remember the circuit of its connection to the switch. To disconnect the cord, use a hexagon (1 mm diameter). The clamp is released, the conductors are dismantled. A multimeter is used to check the cable for an open. If necessary, install a new cord. In this case, the reverse sequence is observed.
In the second case, it is recommended to connect another device to the mains. Electrical appliances may not work if the fuse in the plug is damaged. To carry out repairs, you will need to disassemble the plug. A screwdriver and a tester are used for this.
Motor problems occur when the mower overheats:
- as a result of long work;
- due to overload (the cutting element is blocked by some object).
In the first case, it is recommended to wait a few minutes for the motor to cool. In the second case, you need to remove the stuck item. The effectiveness of the cooling system depends on the condition of the air filter.
A dirty device does not allow air to pass through, which helps turn off the device. Experts advise cleaning and changing the filter once every 3 months (with continuous use of the lawn mower).
If the electric motor breaks down, a corresponding smell and noise appear. In this case, you will need to replace the drive.
The design of a gas mower, unlike an electric counterpart, is more complicated. In some cases, the unit cannot be repaired.
If the engine does not start or stops immediately, then it is recommended to check the ignition. To do this, you will need to dismantle the candle.
A dry candle indicates a problem in the feed system, while a wet candle indicates a carburetor. In such cases, repair work is carried out by professionals.
If there is black soot on the candle, then it is replaced. At the same time, the cause of the mower malfunction is not taken into account (carburetor setting, low-quality fuel). Often in gasoline models, the fuel hose is clogged. If gasoline does not flow, then the saloon is cleaned with a needle, and the fuel filter is replaced with a new analogue.
If the mower does not mow the grass, then check the knives. If necessary, they are replaced with new cutting elements or ground on an emery. In the second case, it is recommended to use safety glasses and thick gloves. You can sharpen mower knives using special tools that are included with the device.
If the knives are blocked by long grass, then it is recommended to turn off the mower. The wooden PAL-KOI scrolls the cylinder (to the other side) until it rotates freely. If the mower does not work as a result of a malfunction of the switch, then it is recommended to check it and replace it with a working analog.
If there is no voltage in the outlet, the shield is checked. Some devices are equipped with thermal protection. When such a system operates, the ventilation grilles are checked for contamination. A soft brush is used to clean them.
Conclusion on the topic
Repair of mechanical mowers is carried out when the cutting elements are dull or damaged. In this case, experts recommend dismounting removable knives on their own. Emery is used to sharpen them. Battery models are replaced if necessary.
Before repairing a lawn mower, the type of motor is determined:
- Electric. the engine is powered by current. The unit shuts down as a result of overheating or overload. Some models do not provide overheating protection. With mechanical damage to the engine, the help of professionals is required.
- Gasoline. the device fails as a result of overheating, overload, breakdown of the oil and fuel supply circuit. Gasoline mowers, unlike electric models, take longer to repair.
gas trimmer Malfunctions And Solutions
gas trimmer. malfunctions and their elimination.
gas trimmer. malfunctions and their elimination.
The gas trimmer is widely used due to its low price and ease of operation. It is needed to care for the plots and the summer residents and the owners of private houses. Because this tool is used exclusively in the warm season, it is necessary to check and prepare the tool before use. lubricate the rubbing parts, fill in the fuel mixture, put the cutting headset.
In the work of any kind of equipment, crashes and malfunctions occur, in order to eliminate them without the help of others, you need to understand the device of your unit and the principle of its operation. To do this, first, you need to study the operating annotation, which the trader in an irrevocable order applies to the equipment during the sale.
Briefly about the gas trimmer device
An iron tubular rod is attached to the gearbox of a two-stroke gasoline engine. Inside the rod passes a shaft that transmits torque from the gasoline engine to the cutting mechanism. The cutting headset can rotate at a speed of 10,000 to 13,000 rpm.
The most common trimmer repairs and malfunction of the lawn mower, the causes of their occurrence and methods of elimination (in the form of questions and answers) are described. There must be holes in the gear housing through which lubrication is made. For ease of use, trimmers are equipped with a belt and shoulder strap.
Mowing occurs specifically with a cutting headset, which is located in the trimmer head, it is then most exposed to wear. To change the line, you need to either rewind the newest on the bobbin, or install another reel with the line already wound. A handle is attached to the rod, on which the control levers are located. The cutting mechanism is protected by a special casing.
Two-stroke lawn mowers are filled with a consistency of gasoline and oil, which is poured into the fuel tank. In four-stroke. gasoline is poured into the tank, and the oil is crankcase.
The engine does not start. If your petrol trimmer does not want to start in any way, first check the availability of fuel and its quality. Poor quality gasoline can lead to failure of the piston group. Then you are guaranteed an expensive repair.
The main malfunctions of the microwave and how to solve them. Fundamentally the same true to prepare the fuel mixture. The proportions of gasoline and oil are always indicated in the manual.
The mixture should be fresh, because during storage it loses its characteristics.
A common prerequisite that the braid does not start is the contamination of the fuel filter. In this case, you need to check the state of the filter and, if necessary, change it. Do not operate the tool without a fuel filter. If the engine jams, it’s also worth checking air filter.
When contaminated, the part is removed, washed in gasoline and put in place. If this is not possible, it can also be washed in water with a detergent, dried, moistened with oil, squeezed and put in place.
If all of the above has already been tried, but the engine still does not start, then try to adjust its idle speed by tightening the carburetor screw.
Lawnmowers repair do it yourself: analysis of faults and methods of their independent eliminate
DIY lawn mowing repair: parsing malfunctions and methods them self eliminate lawn mowing.
The main malfunctions car clutch and ways their elimination
Good afternoon, today we find out what is called a car clutch, which malfunctions most often.
Quick start. Put the tool so that air filter was at the top. With this arrangement of the trimmer, the fuel mixture gets exactly into the bottom of the carburetor.
If before starting, remove the air filter and pour a few drops of the fuel mixture directly into the carburetor, then install the filter and the cover in place, then most likely the engine will start on the first try. If this does not help, the problem may be in the spark plug. Possible malfunctions of lawn mowers and methods for their elimination and much more is possible.
Then you need to unscrew it, check its operability and dry the combustion chamber. A non-working candle can be easily replaced with a new one. But, if the candle is in order, the filters are clean, the fuel is fresh, and the scythe does not start anyway, then you can try to close the air damper, pull the starter once, then open and pull the starter handle several more times.
This procedure is repeated three to five times. If not handled with care and excessive zeal, the starter can be disabled. If the cable broke or the handle breaks, then the repair can be done independently, in other cases it is necessary to replace the entire starter.
Spark plug replacement. Replace when the engine has cooled down. To do this, disconnect the wire from the candle and unscrew it. A candle needs to be replaced if it is heavily soiled or has cracks in the body. Please note that the gap between the electrodes should be 0.6 mm. A new spark plug is inserted into the engine and tightened with a key, then a high-voltage wire is connected.
The engine stalls after starting. Most likely the carburetor is incorrectly adjusted, or it has been out of alignment. That the reason for this can be understood by vibration during operation. You can adjust the carburetor yourself, following the operating instructions.
The trimmer may also stall when the fuel valve is clogged. Faulty trimmers and their elimination | page 27. Then it is simply cleared. If the engine stalls abruptly, it may be difficult to supply fuel to the carburetor. We need to loosen the carburetor valves.
Video: How to Adjust Ignition on a Patriot Lawnmower
Or there’s excess air in the carburetor, you need to add engine speed so that excess air quickly leaves the fuel system. It is also necessary to check the integrity of the fuel intake hose. In case of detection of mechanical damage (cracks, punctures, etc.
), it must be replaced.
Cleaning and storage. The ribs of the cylinder and the channels in the gas trimmer housing must be clean, otherwise this is fraught with overheating of the engine. Allow the engine to cool before cleaning. The external surface is cleaned with a brush.
Plastic parts can be cleaned with kerosene and other solvents or special means. For long-term storage, the entire mixture is drained from the fuel tank, then the engine is started to generate fuel residues in the carburetor.
Keep the tool only in its pure form.
If do it yourself failed to make repairs, it is worth evaluating what is more appropriate, contact the service or purchase a new trimmer.
lawn mowing does not start well, does not develop revolutions, heats up
Today in the workshop is the Polish trimmer Bass Polska. The trimmer does not start well, does not develop revolutions, it is very hot and stalls. Bass Polska is not much different from well-known lawn mowers, such as: ECO, Defort, Eland, Skiper, Groser, Gunter, KW, Shtenli, Belarus, Ural, Patriot, etc. Therefore, everything said is equally true for these lawn mowers.
The trimmer motor can start poorly, develop revs poorly, lose power and stall for several reasons. Most often this is due to problems with the fuel system or carburetor. Last time, we cleaned the carburetor in the AL-KO trimmer (link here), which also developed poorly and when the gas was released, it died out.
But, in this case, we have one more symptom in our history. the engine is very hot. Two reasons are most likely due to which the engine can get very hot.
The first is a faulty clutch, then the front of the engine is warming up, but the engine is working normally, its speed and start are in order. The second is a clogged muffler. With a clogged exhaust there will be a loss of power, and a difficult start, and a loss of power.
The trimmer is practical new, but the compression is lower than expected. We will not perform the standard diagnostic procedure, but immediately proceed to the silencer. Remove the protective cover and silencer.
The assumption of a clogged muffler is confirmed as soon as we removed the protective cover. Exhaust gases under high pressure burst through the muffler bolt. The bolt burnt and unscrewed with difficulty.
Already by bolts it becomes clear the reason why the muffler clogged. This is less common due to poor-quality push-pull oil, more often due to the fact that the proportion is not observed when preparing the fuel mixture. Too much oil was poured, the oil did not burn out completely, soot was formed in the exhaust system, which blocked the through-holes in the silencer cavity. This is exactly the case when you spoil the “porridge” with oil, I urge you again. please strictly observe the proportion of the fuel mixture. The proportion of gasoline and oil, as a rule, is indicated in the instructions of your gasoline powered tool, as well as directly on the fuel tank cap. In this article, you can learn how to choose and prepare the fuel mixture for a two-stroke engine.
We open the air filter, there was so much oil in the fuel mixture that its residues were clearly visible on the filter element. Wash the filter element in a soap solution, blow it with compressed air.
Again we measure the compression, with the silencer removed, the compression is normal, therefore, the remaining engine parts are serviceable and suitable for further operation. Usually, in such cases, I just change the muffler to a new one.
The part is inexpensive, so it makes no sense to wash it in different chemical solutions, spend time on it, especially since it is not always possible to save the muffler.
This is usually, but not today, today at the request of the client, I will open the silencer, make new holes to replace the clogged ones and weld the resulting cavity with electric welding. This is another way to return the trimmer to work, in the case when there is no necessary spare part.
We cut the muffler with a thin disk, the pressure inside was so high that one of the partitions broke off. The amount of soot and soot is amazing.
We drill holes. In this case, I drill thicker with a drill and make bigger holes, because there is no certainty that further this tool will be used correctly. Looking ahead, I’ll say that the sound of the engine became lower and a little louder, but not significantly. Once again I remind you, such a repair is extreme and takes place only in exceptional cases. The defective part must be changed.
At the top you can’t even see the through hole, it just clogged with soot.
Next, everything is simple. We weld the silencer body with a small current, a thin electrode. Putting it all in reverse order.
Scythe worked quite a bit, but the gearbox is already noisy, I lubricate the gearbox. The trimmer is working and works great.
For maintenance, repair and the purchase of spare parts for gardening equipment, please contact the tiller master workshop. Ag. Ozertso, st. Green 18. tel. 8 017 5123712, 8 029 6741674.
Why the chainsaw does not work: possible causes of malfunctions and methods for their elimination, photos and video
A chainsaw is a worthy replacement for hand saws and axes. Today this tool is available in almost every household. it is indispensable in the arrangement of a personal plot, construction and repair work.
Intensive operation and improper maintenance of the tool can lead to premature failure.
However, the owner of the chainsaw does not need to immediately contact the workshop. many of the malfunctions that can happen to her during operation can be completely eliminated independently.
The main condition for a successful repair is the correct diagnosis. Therefore, to determine why the chainsaw is out of order and, most importantly, how to make it work again, you first need to know the features of its design.
It should be noted that it does not differ in particular complexity, since it includes:
- engine (two stroke gasoline);
- functional part (saw bar and chain);
- systems that ensure the joint operation of these two nodes (ignition, filtration, lubrication, etc.), that is, the tool as a whole.
In order to simplify the diagnosis of faults, they are usually distinguished into two main categories:
- engine malfunctions;
- malfunctions of other nodes of the chainsaw.
Most often, failures occur in engine systems, however, the remaining parts of the tool due to intensive use or improper maintenance can fail at any time. How to determine exactly where the breakdown occurred? This will help us with simple logic.
If the problem is in the engine, it will:
- do not start;
- to stall;
- unstable to work;
- develop insufficient power.
Starting the engine: checking the candles
If the chainsaw does not start, the first thing to do is check for fuel mixture in the tank. By the way, it must be prepared in the proportions specified by the engine manufacturer, otherwise the tool simply will not start.
After making sure that the fuel mixture is correct and available, the ignition system should be checked. To do this, inspect the spark plug.
Her condition can say a lot:
indicates that the fuel mixture does not enter the carburetor, which means that the problem is not in the ignition;
- fuel splashed candle
It is the result of an overabundance of the fuel mixture, which lies either in violation of the engine starting algorithm or in the incorrect carburetor adjustment;
this is a signal about the presence of poor-quality oil in the engine lubrication system, incorrect carburetor settings, or an incorrectly prepared fuel mixture.
If the spark plug is splashed with fuel, it must be wiped thoroughly after removal. The fuel supply system should also be cleaned. To do this, it overlaps, after which the starter turns on. A candle covered with soot must be carefully cleaned with an awl and emery.
When checking candles, attention should be paid to the distance between the electrodes (normal clearance is 0.5-0.65 mm), as well as the condition of the gasket and the presence of a spark. A damaged or worn gasket will have to be replaced, and the spark can be checked by putting on the ignition cable, connecting the cylinder and spark plug nut and starting the starter.
If the fuel mixture does not enter the cylinder, but the spark plug is working properly, this may mean that:
- The fuel filter is clogged.
To clean this assembly, remove the fuel hose and check the jet. If it is weak, the filter must be removed through the filler hole of the fuel tank and cleaned or replaced if it is completely worn out.
This is nothing but a hole in the fuel tank cap that is cleaned with an awl.
- The fuel mixture is not supplied or is not supplied in sufficient quantity.
There may be several reasons for this:
- the air filter is clogged (in this case, it must be removed, rinsed with water, dried and put in place);
- carburetor settings are lost (this node must be re-adjusted);
- the integrity of the carburetor membrane is violated (must be replaced);
- clogged carburetor channels (it is necessary to disassemble and clean all parts and assemblies).
If at low speeds the chainsaw motor works fine, but at high speeds it starts to stall and smoke, the problem may be hidden in the muffler.
To verify the quality of its work, you must perform:
- dismantling (with mandatory closing of the outlet);
- disassembly (if the silencer is collapsible);
- cleaning of carbon deposits using special detergents or by dry method;
- drying (using a hairdryer);
- Reassembly and assembly.
To prevent clogging of the muffler during operation of the chainsaw, you should carefully monitor the composition of the fuel mixture and the quality of its components.
Repair of a cylinder-piston group (CPG)
If the engine of the chainsaw does not start or cannot develop normal power, it is likely that the pressure in the engine cylinder does not appear sufficient to burn the fuel mixture.
The reason for this may be the wear of the elements of the cylinder-piston group. the piston, rings, bearings, etc.
In order to assess the condition of this unit, it should be visually inspected by first removing the muffler.
For a more complete diagnosis, a compressometer is placed in the spark plug hole of the two-stroke chainsaw engine. With its help, the compression in the engine is measured. Based on the results of the check, it is possible to judge the state of the CPG, however, accurate facts can be obtained only with a complete disassembly of the assembly.
Check carburetor and signs of the need to adjust it
A correctly working carburetor guarantees maximum efficiency of the chainsaw, that is, it is possible to develop full power at the most economical consumption of the fuel mixture. The adjustment of this unit is usually carried out by the manufacturer, however, its design provides for the possibility of tuning already in use.
The fact that such a setup will have to be performed by the owner of the chainsaw is indicated by:
- Strong vibrations or damage to the protective cap.
- CPG wear.
- Carb blocker.
- Inability to start the engine or its spontaneous stops after starting.
- Increased fuel consumption and exhaust emissions while reducing engine power.
Adjustment of the carburetor of the chainsaw is carried out in strict accordance with the manufacturer’s instructions with the help of three special screws that are responsible for the maximum ("M") and minimum ("L") revolutions, as well as the engine idle speed ("T"). In order to eliminate unwanted interference by an inexperienced user in the operation of the carburetor, some manufacturers install only one idle screw.
Calibration algorithm and safety precautions for troubleshooting a chainsaw carburetor
Carburetor adjustment is carried out in two stages:
- Basic (carried out with the engine turned off).
- Finishing (carried out with the engine running, pre-warmed).
Finishing calibration is performed by unscrewing the idle screw until the minimum engine speed is reached (its operation must be stable and the chain stationary). If the engine stops at idle, the screw must be returned back, and in the event that the saw chain is nevertheless set in motion, it should be continued to turn it counterclockwise.
Calibration verification is performed by the test:
- Acceleration (by smoothly pressing the accelerator, the engine should quickly gain momentum to its maximum).
- Maximum speed (if there is a malfunction in the ignition, screw H should be slightly loosened).
- Work at idle (the chain should not move, and the engine should gain speed as quickly as possible).
Other chainsaw malfunctions
If the diagnostics showed that everything is in order with the engine and its systems, then the cause of the malfunction should be sought in other parts of the chainsaw. The most common problems are:
- starter failure;
- improper operation of the lubrication system;
- incorrect operation of the chain brake;
- chain wear, etc.
If the cause of the failure of the tool is not visible to the naked eye, as in the case of the engine, it is necessary to carry out a thorough diagnosis of malfunctions and eliminate them in accordance with the manufacturer’s recommendations and safety regulations.
There was a vibration when starting the engine: what could be the reason
As a rule, one of the most common engine malfunctions is vibration, which can occur only when the engine is cold or when it starts, be constantly present at the twentieth or under load, amplify with the internal combustion engine warming up, etc.
In any case, it is important to understand that the vibrations in the engine, which are transmitted to the body, to the steering wheel or to the gearshift lever, indicate the failure of certain elements and parts. In this article, we will consider the main reasons why the vibration of the engine appears, and also pay attention to why the engine vibrates a lot at startup.
Motor vibration at idle, on a cold or warm engine: possible causes
We note right away that there are many reasons for the appearance of ICE vibration, starting from torn pillows (bearings) of the engine and ending with misfires and tripling of the power unit. For a more accurate definition, first of all, you should pay attention to one or other symptoms.
The fact is that vibration can be either constant (regardless of warming up and loads on the unit), or manifest itself in a certain mode of operation (idle or high revs, cold or hot). Even vibration of the engine can occur on a cold ICE, but completely disappears as it warms up. Let’s get it right.
- For example, if the engine was recently disassembled for repair (possibly overhaul), then it is highly likely that the crankshaft was not properly balanced after reassembly. The result is a heartbeat and increased vibration.
- We also note that after repairing the motor, different weights that the parts of the cylinder-piston group have can lead to imbalance and vibrations. The greater the difference in weight, the stronger the vibrations. For this reason, experienced craftsmen weigh pistons, fingers, etc. before assembly.
- Often the cause of vibration is that the engine is triple, that is, one or more cylinders for some reason do not work or malfunction. As a rule, eliminating the cause of tripling automatically excludes the presence of vibrations of the power plant.
- Do not forget that the wrong timing belt or chain also causes vibrations. The reason is that the engine is unstable due to a violation of the valve timing.
- Many engines have in their design special balancing shafts, which are necessary in order to "damp" the vibrations. Obviously, problems with these shafts will lead to increased vibration of the motor.
Engine mountings are one of the most common reasons why the engine vibrates. In fact, this is a damper made on many cars made of rubber to absorb vibrations. As you know, over time, the rubber dries up and cracks, loses its properties as a result of ingress of technical fluids, etc. The main thing is that an engine with a damaged pillow cannot work smoothly.
- If you recently moved from one car to another, it should be borne in mind that different engines may differ in vibration load. The number of cylinders, layout and a number of other features affect the level of vibration. In simple words, a conventional in-line 6-cylinder engine can work with less vibration than a 4-cylinder and, especially, 3-cylinder engine. over, in this case we are not talking about malfunctions, since for a particular ICE a certain level of vibration can be considered the norm.
- In addition, to reduce vibration, the so-called torsional vibration damper is located on the crankshaft of many engines. If there are problems with the element, the motor will begin to vibrate more strongly.
As you can see, at the initial stage, it is important to accurately determine the cause of the amplification of vibrations. For example, in most cases, it is enough to replace the engine mount or solve the problem on which the engine is troit. However, it also happens that the power unit itself needs to be disassembled and repaired.
The engine vibrates when starting
A fairly common situation is when vibration occurs when the engine starts, and the cold ICE is launched. However, after the engine warms up at the time of subsequent starts, vibrations may not be observed. Such signs and symptoms usually indicate the following problems:
- Problems with spark plugs. A normal candle should be light or light brown. If there is soot on the candle, the electrodes are coated with plaque, then it loses its ability to timely ignite the working mixture of fuel and air in the engine cylinder. In simple words, when starting, the engine starts to triple, the speed can float, strong vibrations are felt in the cabin.
- Dirt or malfunctioning nozzles, clogged fuel filters, unstable operation of the fuel pump, air supply to the power system, the use of low quality gasoline or diesel fuel, as well as problems in the electrical circuits can also cause the engine to triple and vibrate after starting to cold.
Deterioration of the engine’s CPG or burnout of the valve leads to a decrease in compression. As a result, the fuel does not compress properly, that is, the cylinder does not work, the mixture does not ignite, or the charge ignites intermittently. In any case, the engine is troit, strong vibrations occur at the start. With warming, the compression can increase, after which the vibrations decrease or completely disappear before the next cold start.
- As mentioned above, engine mountings and mountings can be damaged. In this case, the cold engine vibrates most strongly, that is, when the temperature in the engine compartment has not yet risen. Often with heating, the rubber in the construction of the supports softens somewhat, after which the intensity of the vibrations decreases. For an accurate determination, you need to check the engine mountings using one of the available methods.
We also recommend reading an article on why the engine vibrates at idle. In this article, you will learn about the causes of engine idle vibrations, as well as how to determine the malfunction yourself in the initial diagnosis.
- Problems with idling, ECM sensors, or actuators often cause the RPM to float or jump. During jumps in speed, the crankshaft speed can drop to such low values when the engine is almost stalling. At this point, the vibrations are especially strong. It is necessary to check nozzles, IAC, DMRV and other elements.
What is the result
Based on the foregoing, it becomes clear that if everything is in order with the engine mountings, then the vibration of the power unit at start-up may indicate problems with the ignition system, power system or electronic engine control system.
We also add that many owners experience increased vibrations after unprofessional installation and adjustment of gas equipment (for example, when the system immediately supplies gas to a cold engine without starting the engine on gasoline, etc.).
Finally, we note that in some cases the cause of increased vibrations may be a gearbox or engine attachments. The fact is that malfunctions in the area of the drive elements can cause a certain imbalance.
For this reason, to determine the cause of vibrations, it is recommended to carry out a complete comprehensive diagnosis of not only the engine and its systems, but also attachments.
Trimmer Heats Up And Doesn’t Start
Why does not start trimmer petrol? Prerequisites and their elimination
In the near future gas trimmer got the status of the 1st of the main tools in the arsenal of summer residents. And this is logical, because a motorized scythe allows you to quickly put your personal plot in order.
But from time to time it happens that trimmer does not start on hot and even cool. In such situations, it is necessary to determine the cause of the malfunction without the help of others. Let’s find out what to do if the trimmer does not start.
Backgrounds, which more often lead to such troubles, will be examined further.
Where to start the diagnosis of defects, if not starts up trimmer? In situations when the tool stalls immediately after starting, it is worth looking at the following units of the unit:
- fuel tank;
- spark plugs;
- fuel and air filter;
- exhaust channel;
Specifically, the breakdown of the above locations more often leads to the fact that the trimmer does not start well. Benzo trimmer stihl fs45 start and start. Or won’t start, mtd stc 55 p trimmer. Let’s look at how to fix such problems.
Fuel mixture check
Let’s say you do not start the trimmer. In this case, the first step is to check whether there is enough fuel in the tank, and also evaluate the quality of the fuel consistency. You need to refuel a motorized unit only with high-quality gasoline. It is recommended to use fuel whose brand is not lower than AI-95.
Filling the trimmer with fuel of an unknown origin, purchased not at a gas station, is fraught with the appearance of frequent malfunctions in the tool. This may cause a malfunction of the cylinder-piston system. In general, when the trimmer began to act up and stall, why the trimmer does not start.
Repair in this case often exceeds the price of the device itself.
Why not start trimmer petrol? Incorrect preparation of the fuel consistency, which consists of oil and gasoline, can also lead to this. The proportions in which the indicated components are connected are indicated by the manufacturers in the trimmer instruction manual.
It is not recommended to prepare a fuel mixture in large volumes, in other words for the future. After all, with prolonged saving, the loss of the determining parameters of the substance occurs.
Therefore, if not starts up trimmer, it is necessary to drain the old fuel and use a freshly prepared fuel consistency.
Diagnosis of the suppository canal
What to do if the used fuel mixture is in perfect order, but as before, the gas trimmer will not start? The reasons for the failure of the mechanism may lie in the excessive wetting of the candle channel. To diagnose and fix the problem, do the following:
- Unscrew the candle. Wipe it thoroughly and then dry.
- Drain excess fuel in the chamber through the corresponding spark plug hole.
- Clean the old candle if there is soot on its surface. To cope with the task will allow the use of ordinary ladies’ nail files or needle files.
- When installing the element in place, set a gap of 1 mm. To check the parameter, just put any coin in the lumen.
- Reassemble the function block.
- Try to have a trimmer.
Drying the candle channel is recommended for at least half an hour. However, in no case should you resort to calcining its elements. After all, heating the spark plug can lead to its final damage.
What to do if the function block was serviced in accordance with the above recommendations, but the trimmer does not start, is there a spark? In this case, it is worth treating the threaded connection with gasoline. The latter does not need to be abundantly impregnated with fuel.
It should only be slightly moistened. Why the trimmer does not start and fills the candle, why it fills the candle on the lawn mower and how to fix it. To resort to such actions should be to ensure ignition.
After all, no matter how strong a spark is given by a candle, there will simply not be anything to ignite in a completely dry chamber.
lawn mowing. On the hot stalls. Possible cause and remedy
Immediately draw your attention that unfortunately it not carburetor. (My Facebook site.
The chainsaw does not start on a hot
Does not start hot chainsaw.
If even then start trimmer, It is worth evaluating the quality of the contact between the high-voltage wire and the candle.
In the absence of a spark (in the presence of a reliable connection between these elements), most likely, the problem is caused by a breakdown of the ignition unit.
Why doesn’t the gas trimmer start? Incorrect preparation of the fuel mixture, which consists of oil and gasoline, can also lead to this. In this situation, you will have to turn to the services of masters who will reinstall the site.
Another common reason that does not start the trimmer is the clogging in the filter area. To confirm the guess, it is enough to dismantle the indicated block and try to start the unit without it.
If the trimmer engine starts, you will most likely have to replace the air filter or at least thoroughly purge the old one. In the presence of heavy pollution on a surface of the filtering element it is necessary to use a new grid.
When resorting to such actions, one should not leave the suction pipe completely without a filter. Indeed, the rush in this case may lead to the need to repair the entire piston group of the engine unit.
Cleaning the breather
Often, the engine of branded trimmer models stalls as a result of clogging of the breather. Why the trimmer does not start and that is, if it is not respected if the spark.
The main task of this component is to equalize the pressure in the fuel tank. In case of contamination of the unit, a vacuum forms here, which significantly complicates the supply of fuel.
The problem can be rectified by cleaning the breather with a regular sewing needle.
Stable operation of the trimmer may be impaired due to the accumulation of dirt in the exhaust channel or the formation of blockage on the silencer mesh. This problem most often occurs during the operation of older generation trimmer models. The issue is solved by dismantling the anti-spark mesh and cleaning it.
How to prevent sudden breakdowns during operation of the trimmer?
To ensure that the unit is always in a functional state, it is worth observing several simple rules:
- Conduct timely, regular technical inspection of the main mechanical components of the device.
- Refuel the trimmer exclusively with fresh fuel, the quality and origin of which is beyond doubt.
- Check after each use of the tool whether oxides and deposits have formed on the surface of the ignition system elements.
- Avoid heavy load trimmer during work.
In order for the unit to remain in working condition, it is necessary to properly prepare it for storage in the winter. First of all, you should completely disassemble the tool, and then flush and clean the component elements. It is also important to inspect the functional blocks for damage, if necessary, eliminating the deformation of parts, all kinds of distortions, gusts of materials.
Off-season gasoline trimmer storage recommendations
When placing the trimmer in storage, it is worth filling the gearbox with enough oil. Then you need to clean the air filter, partially disassemble, blow and rinse the engine of the unit. Having dried all the mechanisms, lubricate the movable elements.
To process the piston system with oils, you must first remove the spark plug. Why does not start if the trimmer is very hot and the electric trimmer vibrates.
Then you need to move the piston to the extreme position, after which pour a small amount of oil into the spark plug hole and scroll the crankshaft.
If stored gas trimmer in the offseason it is planned not in the house, it is recommended to tightly wrap the engine of the unit with an oiled rag. This will avoid the development of corrosion on the surface of important components of the mechanism.
As you can see, there are a number of reasons why a gas trimmer may not start.
However, with a serious approach to the problem, the malfunctions indicated in the material are quite easily eliminated by one’s own hands. Seek help from specialists only in case of critical breakdowns.
In the end, you should always correlate the cost of self-repair with the prices for servicing the unit in the workshop.