Chainsaw Carburetor Adjustment Oleo-Mac 937

Adjustment carburetor chainsaws Oleo-Mack 941s

How to deal with problems in Oleo-Mac chainsaws

Why does the Oleo-Mac chainsaw stall, lose momentum, or generally does not start? It’s important for the owners of the Oleo-Mac chain saw to know such questions in order to do the right service and not allow repair of the Oleo-Mac chainsaw.

The content of the article:

Actually important structural elements in Oleo-Mac chainsaws:
Start-up hurdles Chainsaws Oleo-Mac:
Problems working with the Oleo-Mac chainsaw:

Vital structural elements in Oleo-Mac chainsaws

Italian chainsaws from Oleo-Mac are:

Lightweight (domestic and semi-professional). with a tire up to 45 cm, used in everyday life and for small commercial tasks.
Professional. with a large saw bar, used for felling and harvesting lumber for sale.

The main elements that make up the Oleo-Mac chainsaw device of the original Italian production:

The fuel mixture of oil and gasoline (1:50) is poured into the fuel tank (for Italian chainsaws, the gas tank is 0.23–0.8 l, the largest gas tank in the Oleo-Mac GS 650 and Oleo-Mac GS 720 is 0, 8 liters, the smallest fuel tank. the lightweight Oleo-Mac 932C chainsaw. 0.23 liters).
Then the resulting fuel mixture from the gas tank is taken into the carburetor for mixing with air.
A saturated air mixture is pumped into the cylinder of a 2-stroke internal combustion engine, here it is ignited by a spark from a spark plug.
The engine starts the movement of the crank mechanism, the purpose of which is to convert reciprocating piston movements into shaft rotation.
The shaft is connected to a centrifugal clutch with an asterisk, which starts the saw chain. This is the way to cut with the Oleo-Mac chain saw.

The structural device also has:

cleaning the air supplied to the carburetor
saw set consisting of tire and chain
starter (manual or electric)
spark plug
muffler
oil tank for automatic chain lubrication
side chain tensioner
inertial brake (or, as it is also called, an electric chain brake to prevent a back strike).

What is an Oleo-Mac chainsaw primer?

It is important for owners to know what a primer is in an Oleo-Mac chainsaw, because, thanks to a manual fuel pump for pre-pumping, called a primer or suction, a cooled internal combustion engine starts faster. When starting a gas tool with a primer, it is possible to pre-fill the carburetor with gasoline, without using a primer, it will take some more time due to the use of a starter to pump fuel with a carburetor pump. Primers are used for engines after refueling or for cold engines that have not been used for a long time.

Oleo-Mac chainsaw where to pour oil?

Chainsaw oil is used in two types:

Chainsaw carburetor adjustment.

Chainsaw Carb Adjustment.

How to adjust a carburetor on a chainsaw

turning the screw L or H the mixture is leaner, and we turn off the mixture made a mistake made a reservation was enriched on.

Adjustment chainsaw carburetor Oleo-Mac

As mentioned above, a carburetor mixes air with the fuel mixture before being fed into the engine cylinder. Professional cleaning, tuning and adjusting the carburetor of the Oleo-Mac chainsaw is a mandatory procedure carried out at the factory during pre-sale preparation and scheduled maintenance. Adjusting the carburetor should not be done with your own hands, since without the necessary qualifications and without the use of a tachometer, it is unlikely that it will be possible to adjust the carburetor to optimal operation. The authorized service center of an official dealer of Italytools involves adjusting the carburetor, as well as replacing engine and chain oil, for each maintenance.

Why doesn’t the Oleo-Mac chainsaw start?

The main reasons why the Oleo-Mack chainsaw does not start are sought, moving from simple to complex:

The banal lack of fuel in the gas tank or its insufficient amount to start.
Inspect all fuel hoses and connections, pay attention to crankshaft oil seals.
Improperly prepared fuel mixture. cook according to the instructions, use only that brand of gasoline with the corresponding octane rating, not higher and not lower. Remember to add engine oil to the fuel mixture.
The mixture is made on the basis of production for 1-2 weeks, after this period, gasoline loses its octane quality.
During the start, the spark plug was filled with gasoline. It is necessary to dry the candle without calcining it, drain the excess fuel mixture, wait half an hour and then put the candle back in place and repeat the start. It is advisable to have a spare spark plug if drying the gas-filled spark plug does not help.
The problem may be not only in the spark plug, but also in the poor contact of its tip with a high-voltage wire. If the contact is normal, and there is no spark from starting the starter, then the cause is in the ignition electronics. Unfortunately, this item is not repairable, it needs to be replaced.
If the tool does not want to start when starting, inspect the spark plug: its suspicious dryness means that there is no fuel in the cylinder, so the reason may be in the carburetor. The presence of black soot indicates that the carburetor was incorrectly adjusted, as a result of which the carburetor feeds too much fuel mixture into the air-fuel mixture or too much engine oil in the mixture.
serious reasons should be sought in the cylinder-piston group. Signs. the presence of chips and scoring on the cylinder and piston. Eliminate problems by boring the cylinder under a new piston group. You also need to check the piston rings. the play when the piston is swung by the connecting rod in the cylinder indicates the worn piston rings that need to be replaced.

Why does the Oleo-Mac chainsaw start poorly?

Why the Oleo-Mac chainsaw starts up poorly. the reason may be in the air filter clogged with dust.

Why does it stall chainsaw Oleo-Mac, when do you give gas?

Often on the forums of masters you can meet attempts to find out what needs to be done when the following problem appears: "Why does the Oleo-Mac chainsaw stall when I press the gas?"

Why does the Oleo-Mac chainsaw stall in this case? Obviously, the fuel mixture does poorly due to:

Clogged fuel filter
Clogged nozzle in carburetor.

The fuel filter is checked and cleaned very easily and quickly, and the carburetor jet must be checked at a service center.

In the event of a drop in power and a stalling chainsaw at idle, the cause may be a clogged muffler. Cleaning the exhaust duct and muffler from tarry exhaust deposits will help solve the problem.

How to run in the Oleo-Mac chainsaw?

One of the frequently asked questions of those who just bought an Oleo-Mac chainsaw, is it necessary to run the chainsaw and how to do it correctly?

The sequence of proper break-in gasoline saw Oleo-Mac:

Make a fuel mixture and fill it in a gas tank.
Generate 5–10 full gas tanks with minimal load. Ideal conditions for this are 2-3 minutes of use for 2/3 of the maximum possible saw power, then 15-20 seconds at idle. As a load for a break-in, combine business with pleasure. cut firewood with a small diameter of logs.
Then you need to adjust the carburetor. The Italian corporation Emak, producing Oleo-Mac chainsaws, adjusts the carburetor to meet the upcoming break-in.

Why chainsaw Is Oleo-Mac a bad saw?

Why does the Oleo-Mac chainsaw saw obliquely and crookedly, the answer is obvious: the reason is in the saw chain, in the violation of its cutting properties.

Most often why chainsaw Oleo-Mac saws obliquely, due to uneven blunting of the rows of chain teeth. Such uneven dullness occurs due to the following situations:

During the cut, the chain fell on a knot, a nail.
The tire was not periodically turned over so that the chain would wear out evenly.
During the last re-grinding, the work was done poorly. This often occurs during manual file sharpening. While it is desirable to use a professional grinding machine.
Bent tire. Very often, this problem occurs during felling of large trees, if the saw was clamped when the tree fell, and the tire was bent.

Description of the Oleo-Mac 937 chainsaw

Specifications

Oleo-Mac was established in Italy in 1972. The main specialization is the production of garden tools and equipment for the woodworking industry. After 20 years, Oleo-Mac, which at that time was a holding of several dozen enterprises, became part of the Efco concern. The new company is called Emak. However, trademarks remained the same, as well as a network of dealer points.

Features

Basic equipment

Oleo-Mac 937. equipment

Preparation for work

When buying a chainsaw, conduct a thorough visual inspection of the product, pay special attention to the presence of a company warranty card.

Important: Your Oleo-Mac 937 chain saw is a fairly technically sophisticated machine. Therefore, before starting operation, carefully read the manual, examine the device of the chainsaw. As practice shows, most of the calls to service workshops are due to improper use of the tool.

After familiarizing yourself with the manual, you can proceed with the installation of the saw headset:

Unscrew the two fastening nuts and remove the cover that covers the drive sprocket;
Slide the shank of the tire over the studs;
Put the chain on the drive sprocket, then insert it into the guide grooves of the tire;
Install the protective cover and fasten the fastening nuts without tightening them all the way;
Adjust the chain tension so that the links do not sag, but the chain rotates freely along the tire;
Tighten the fixing nuts all the way;
Fill your chainsaw with fuel, pour oil into the automatic lubrication system;
Start the engine and get to work.

Important: the Oleo-Mac 937 chainsaw does not need a break-in, however, at the initial stage of operation, you should not saw thick logs and overheat the engine.

Repair of your chainsaw, carburetor adjustment and other settings are best done at service centers.

Fuel and lubricants

The fuel mixture for a two-stroke engine is prepared from motor oil and gasoline grade AI-92, 95 in a ratio of 1/50. The manufacturer recommends the use of Oleo-Mac Prosint 2T oil.

To lubricate the chain, special adhesive oils with additives are used that provide good lubrication of the saw set at any temperature. Oleo-Mac Polar Lube chain oil is best for your chainsaw.

Carb adjustment

Carburettor adjustment may be necessary if the operator noticed difficulties with idling.

To adjust the carburetor in the chainsaw:

Start the saw, turn the adjusting screw for high and low revolutions to the stop. Turn it back one and a half turns.
Warm up the saw for 5-10 minutes. Set idle screw.
With the right settings, the circuit will not move on the bus at idle.

Key chainsaw malfunctions

The cold engine does not start:

There is no fuel in the system
Ignition not included
Clogged or defective candle

Carburetor adjustments lost
Air filter clogged
Faulty breather

Advantages and disadvantages of the Oleo-Mac 937 chainsaw

Reliable and economical engine;
Convenient placement of management tools;
Effective vibration damping system;
The ability to install 40-centimeter tires;
High performance;
Long overhaul period and high maintainability;
Developed network of service points.

Requires high-quality fuels and lubricants;
Price.

Video review

Unpacking and review from the owner of Oleo-Mac

Oleo-Mac 937 chainsaw instruction manual

If your is out of order and needs a professional prompt repair, contact us at RemonTools! Our masters will cope with any problem and provide the best service in Kiev. Our one of the main directions is already 5 years.

About the benefits of respite

There are a few more typical breakdowns that are easy to avoid.

Firstly, engine overheating. Release the trigger when not cutting. Let it idle. Maintaining constantly high revs does not make sense. Do not forget that two-stroke engines are cooled by air, and the saw is not a motorcycle, and the oncoming stream does not blow cooling fins at a speed of 130 km / h. Unless you start waving it under the influence of a horror movie like “Saw 7”.
Secondly, a common cause of failure. Third, watch out for the chain brake. Gas when the brake is applied leads to severe wear of the drive sprocket, clutch drum and brake spring.

When the brake mechanism is opened, the spring in such cases spills out with steel dust and small fragments, and the drive sprocket cut through the chain does not allow to reliably adjust the tension.

Therefore, one more rule: take a five-minute break in work every 10-15 minutes and then your beautiful and convenient tool will survive to retirement. What else interesting did we learn from the specialists of the service center? Watch out for air and fuel filters. Power reduction in most cases occurs precisely because of their pollution. Watch out, you will not smear. you will not cut it. You will be surprised that they just do not pour chain lubrication into the reservoir. Advice for those who are first "chainsaw": drying oil and sunflower oil to lubricate the chain are not suitable. Absolutely!

Chain tension

A properly tensioned chain must not sag from the bottom and have too much tension. The first is visually controlled, the second. by pulling the chain along the tire by hand. The last operation to avoid a cut must be carried out in mittens. If the lower branch is adjacent to the lower edge of the tire, and the chain is freely stretched by hand, then its tension corresponds to the norm.
When checking the chain tension, the chain brake should be released if it accidentally locks the chain. Chain tension should be checked frequently. new chains tend to lengthen during use.

During sawing, the chain heats up and lengthens due to friction. The chain tension loosens and the chain on the underside of the tire sags. If the work is carried out at very low outdoor temperatures, the circuit, warmed up to the operating temperature, sags so much that it must be pulled up. If it is interrupted, the chain must be immediately loosened; otherwise, when cooled to ambient temperature, the chain will stretch too much. As a result, a chain break can occur, as well as damage to the crankshaft and bearings.

The maintenance of the chain consists in its periodic inspections, timely sharpening, and replacement upon detection of extreme wear or other defect that impedes the safe and efficient operation of the chain. How to sharpen a chain, see the article Sharpening a chainsaw.

Each moving part during the first commissioning takes some time to grind. Despite careful processing, each surface has microscopic roughnesses that are smoothed when lapped. For new chains, the running-in time is approximately three minutes. The engine should work without load (do not saw) with half supply of air-fuel mixture. During this time, the surfaces of the chain parts are smoothed out and the material settles, the chain sags, and needs to be pulled up. When running in, the friction forces are especially large, so it is important to ensure sufficient chain lubrication.

Chainsaw refueling

Two-stroke engines of chainsaws run on a fuel mixture prepared from motor oil for two-stroke engines and gasoline. That is, the chainsaw engine is lubricated by supplying oil to the cylinder along with fuel. In the manuals, indicate the brand of oil and the octane number of gasoline that should be used when operating their tool. Often they sell their own brand name oils, which are recommended as the most suitable. The exact ratio of oil to gasoline is also indicated, which, depending on the type of oil, can range from 1:25 to 1: 100. The most common is a ratio of 1:50. The chainsaw engine has a maximum speed of about 13,500 rpm. This imposes stringent requirements on the oil added to the fuel mixture.
Dilution of oil in gasoline is carried out in a certain sequence. First, oil is poured into the container (canister), then a suitable oil is added to it. in a volume of about half the total amount needed. After thorough mixing, the second part is added. Before pouring the mixture into the fuel tank, it shakes well again. The bay should be done carefully, without spills. Do not pour fuel under the very top of the tank, you need to leave a small free space at the top. The volume of the fuel tanks of chainsaws is usually about 0.5 l, and with a power of a chainsaw of 2 kW (2.7 hp) and a fuel consumption of about 1.2 l / h, this volume will last about 30-40 minutes. work in maximum load mode. For less powerful chainsaws, the volume of the fuel tank is usually less.

To lubricate the chains, it is recommended to use special oils sold by them that contain adhesive additives that keep the oil on the chain. Operators often replace them with others. transmission or motor. Oil is poured into the tank at the same time as fueling.

The ratio of the capacity of the tanks for fuel and oil is selected in such a way that when the fuel is completely depleted, a little oil remains in the oil tank. At the same time, you should know that the fuel consumption of a chainsaw (see above) depends on the correct carburetor adjustment. If the latter is not adjusted correctly, fuel can run out much faster than chain oil.

If during operation the amount of oil does not decrease or decreases too slowly, this indicates that the chainsaw lubrication is broken due to a decrease in the conductivity of the channels through which oil is supplied to the tire, or a pump malfunction. It is necessary to identify and eliminate the malfunction. The performance of some pumps can be changed manually using the adjusting screw.

To test the operation of the chain lubrication system, a tire with a rotating chain is brought to some bright surface (fresh cut, for example). If a splash marks appear on the cut surface, the system is operating normally.

The chain requirement for oil varies, depending on the situation. A large length of cut, hard, dry and thick bark need an increased amount of oil. Sawing short, soft and wet require less oil.

If the cutting headset in the cut starts to smoke (do not confuse it with light water vapor) and / or the chain gets pinched in the groove of the tire, this is due to excessive heating. One reason is the lack of oil. Other reasons must be taken into account: a dull or improperly sharpened chain or too much chain tension.

If there is an unattended sprocket at the end of the tire (there are holes for lubricating it), then it is lubricated separately. oil does not get onto its bearing.

Chain chainsaw Makita DCS 5200i-45 (DCS5200i-45)

14 690 rub Chain saw Makita DCS 5200i-45. an effective tool for large logging and for wooden architecture. The model is equipped with a powerful two-stroke gasoline engine (2.7 kW / 3.6 hp), which, among other things, is also characterized by increased reliability. The cylinder walls are lined with Nikasil, and the crankcase is cast from high-strength magnesium alloy.

To simplify starting the chainsaw engine Makita DCS 5200i-45, an injection carburetor with a spray device and an electronic ignition system were used.
The dual air purification system (air and pre-filters) entering the cooling system provided in the Makita DCS 5200i-45 chain saw extends the life of the tool and ensures its long-term operation without reducing power. For use in dusty environments and when sawing dry wood, it is recommended to use a Robkoflok air filter to catch the smallest particles floating in the air in the Makita DCS 5200i-45 chain saw set. And to neutralize snow dust in winter, put an additional “snow” under the preliminary filter. To operate at low temperatures, the Makita DCS 5200i-45 chain saw also provides for the possibility of heated air from the cylinder.

The Makita DCS 5200i-45 chain saw is unpretentious in maintenance, and the high quality of manufacturing materials and assembly accuracy ensure its long-term operation without maintenance. This is another “plus” in the characteristics of this model, since its purpose, like that of any “pro”, involves intensive operation often far from civilization. from service centers.

For safe operation, the Makita DCS 5200i-45 chain saw provides a chain braking system that can be activated by the user or under the influence of inertia. The model is equipped with comfortable handles with safety guards. Vibration vibrations on the handles of the chain saw Makita DCS 5200i-45 are minimized due to the presence of a perfect damping system.

Each time, when purchasing a tool, we rejoice at the purchase and are looking forward to how cool it will be with a new screwdriver to assemble furniture or to cut the boards with a newly unpacked surface gage. But hardly anyone thinks at this moment that the service life and uptime of the tool is not only the reliability of the design and the reputation of the manufacturer. And before you start the gas generator for the first time or drill the first hole with an excellent drill, you should read a few recommendations on how to correctly use the tool.

In one of our publications, we talked about the history of the invention and development of chainsaws. It would seem that it is easier to connect a gasoline engine with a toothy chain to deal with a small grove of dead wood or to remove a fallen poplar from the roof of your car? And as long as the motor buzzes loudly, and the tire passes through the trunk of the tree like oil, thinking about prevention and maintenance is just too lazy. In the repair shop they think differently. They told us and showed the story of one chainsaw.

This time we went to one of the service centers, where everything is repaired. from spaceships to nanorobots. Oh! We wanted to say "from electric trimmers from China to Australian mini-tractors." And all because the list of manufacturers who entrusted these children with the preparation of their offspring is longer than the size of this article. Having passed all the cordons of a secret laboratory in the east of Moscow, we found ourselves in front of an operating table. The head physician of the “clinic”, Andrei Sokolov, offered to show us a typical case from practice. A chainsaw was waiting for us on the operating table. Of course, without signs of life.

In this secret room, we saw all the operational errors. They remain on the body of the instrument. Professional scars and abrasions are visible to the naked eye, although we have not reached the insides. Good athletic training for lumberjacks leaves no chance for the chain tensioner. In the place of fastening of the tire, two nuts are tightened by a moment close to the breakdown of the thread on the studs. That is why the body around the nuts is covered with running cracks. Perhaps this is not the roughest handling of technology. Rather unprofessional. But if we can drive a car, drive a computer and speak a foreign language, then maybe we can find time to deal with a chainsaw? Here is the first common mistake when working. a skew tire. When for some reason the employee decides to change the direction of cut. In this case, the chain wedges and flies along the curved tire. A bent tire is difficult to correct on its own. alloy steel shows its properties to a certain limit, and then forms a bend in the tensile region. Specialists in this case recommend replacing the tire. Yes, most often the repair consists in replacing a failed part. Incorrect work reminds of itself by bills for services of a service, and financial losses due to incomplete work make you think about accurate operation.
It is noteworthy that often breakdown occurs where it is completely impossible to assume. For example, how to properly start the engine of your "", "Calm" or "Partner"?

Andrey Sokolov gives simple recommendations: first you need to pull the starter cord until the ratchet engages clearly. You will feel it by changing the effort on the handle. And only from this position should start the engine. The movement is not sharp, but rather fast and smooth.

Now the reader may think to himself, they say, you guys would not have taught your father to start a saw. But let’s listen to our expert again. On the circumference of the ratchet (and it is often made of plastic), four calls were made to the engine crankshaft. Therefore, the gap between each of them and the counterpart to the crankshaft is 30-40 degrees of rotation of the starter. On a starter with a diameter of 60-80 mm, the cord extends 10-15 centimeters. It is this distance that should be chosen before starting.

If the hero-lumberjack tears from his place in the quarry, then the ratchet cover at the moment of engagement hits the starter dog. Several of these blows can destroy the plastic part, after which there will be nothing to pull. A penny detail, a new saw, but no one is sawing anything. All these destruction are clearly visible in the photographs, and we move on, into the bowels of the instrument. In the last century, so in the 80s, when any equipment (and a chainsaw. even more so) was in short supply, the materiel of any equipment was studied up and down. The push-pull animal with steel teeth was kept warm, cleaned after each cabin and checked candles-filters-fuel-oil more often than baby diapers. littered with excellent, reliable saws with catastrophic breakdowns! Well, at least the engine: breakdowns of the parts of the crank mechanism, seizure of the cylinder walls, stale rings. What is the reason?

For a two-stroke, which works on a mixture of gasoline and oil, it is extremely important to properly prepare this very mixture. If there is a lot of oil, then the mixture burns slowly. carbon deposits form quickly and the operating temperature rises, the grooves of the rings are coked. As a result, your Milwaukee goes on vacation at your own expense. Reverse situation: too little oil (read “no oil”). Everything is clear here. dry work of individual sections, overheating of rubbing pairs, tacking in contact zones. The result is approximately the same: jamming, sometimes with the breakdown of parts of the crankshaft, melting and destruction of the piston, then on the list. For the engine of a modern chainsaw, the proportion "gasoline: oil" is from 50: 1 to 40: 1. Accurate preparation of the mixture guarantees proper operation, but here we are waiting for the nuances. During prolonged storage, the mixture is again stratified into gasoline and oil. And then the high probability of oil starvation makes starting the engine a risky venture. So one more rule: prepare the mixture immediately before work, so it is more reliable.

Video: Chainsaw Carburetor Adjustment Oleo-Mac 937

Our expert notes frequent engine failures for another reason. During long winter storage, gasoline itself is fractionated. Some of them are quite aggressive to gasket materials, others are heavy deposits that clog the carburetor channels, and in this case it is difficult to achieve a normal fuel-air mixture.

In this case, the recommendation is one: before long downtime, drain the gas, and the residues can be worked out at idle. Yes, do not forget where to refuel. If the village Kuzmich, following world trends, instead of a hot drink drives fuel of medium turbidity and calls it “92nd gasoline”, then you need a civilized and proven gas station.

How to start working on a chainsaw?

A well-tuned and adjusted chainsaw should be easy to start in all conditions. Before starting it must be installed on an even place. so that the tire does not touch the ground. The chain brake must be activated, i.e. its handle should be pushed towards the end of the tire. The chainsaw is launched in the position in which the left hand holds the front handle of the saw, the right foot rests on the rear handle, pressing it to the ground.

The peculiarity of the start-up process is that at the initial moment an enriched fuel mixture must be supplied to the combustion chamber to facilitate its ignition. As soon as the engine starts, the mixture needs to be leaner, otherwise the motor will "boil over". Different saw models have different controls for this process. In some there is a choke lever, by switching which enrich the mixture. In others, there is a multi-stage switch, which, switching from one stage to another as it starts, controls the position of the air damper and the degree of enrichment of the mixture. In addition, during start-up, an accelerator (fuel feed lever), which is also connected to the air damper, must occupy a certain position.

For example, the engine start process is as follows:

Chainsaw launch
Chainsaw start: 1. chain brake, 2. fuel control lever, 3. fuel control lever lock.

Activate the chain brake (1) (see illustration above).
If the saw is equipped with a decompression valve to reduce the pressure in the cylinder, it must be opened before starting (press the button). This will allow you to start the engine with less effort. With increasing pressure in the combustion chamber, at the first ignition, the valve closes automatically (the button pops up).
If there is a fuel pre-pump (primer), then press it 5-7 times.
Lock the fuel control lever (2). To do this, press the lock of the fuel control lever (3) and simultaneously the fuel control lever (2).
Set the combination lever (4) to the cold start position (A). When starting a warm engine, the lever is set to position (B).

Combination Lever Positions
A. position for cold start. B. position for starting a warm engine (half-gas position).

The starter handle is pulled out until resistance appears and is pulled up with force (if there is a slight jerk there is a risk of pouring a candle). However, it does not stretch to the very end to avoid breaking the cord and returns gradually, under tightness, so that the cord lies correctly on the drum. If necessary, several jerks are made. If possible, pull it up so that the cable does not rub against the body. The engine starts only for a short time and immediately stalls, that is, the engine has ignition of a mixture of fuel and air.
Open the throttle by moving the combination lever up one lock position (to the half-gas position), (B) in the figure above. If the lever remains in the starting position of the cold engine, then the combustion chamber overflows and the engine swells, it is necessary to twist and dry the candle, ventilate the combustion chamber. If there is a decompression valve, then it must be opened again.
Pull the starter cable again so that the engine starts again.
After the engine starts and starts to work, immediately, briefly press the fuel control lever (2) with your index finger. In this case, the combined lever moves to the idle position I. The combined lever can be moved to the normal mode only with the fuel control lever. do not use force. The engine should switch to idle immediately. otherwise, when the clutch drum is blocked by the brake, damage to the chainsaw and brake housing may occur.
Slowly lift the chainsaw off the ground, being careful not to touch the fuel feed lever.
After that, release the chain brake by pulling the chain brake stop towards you with your left hand. In this case, the left hand should remain on the handle.
Before starting work, be sure to check the chain lubrication system. To do this, place the saw on a light background (for example, a stump or a sheet of paper laid out on the ground) and give a full throttle. If spots of oil appear on a light background, this means that the chain lubrication system is functioning normally.

Chainsaws are stopped by switching the switch to the “Stop” position (0), at which the ignition circuit breaks.

We offer you the following repair and warranty service of chainsaws:
Repair and replacement of a starter (shmorgalka);
Cleaning, tuning and adjusting the carburetor;
Replacement piston (cylinder piston group);
Ignition Coil Repair;
Replacing and cleaning the oil pump;
Sharpening chains and saw blades;
Replacing benzo air and oil filters
As well as the repair of all other faults that are not included in the list.

We will carry out diagnostics, modernization, cleaning and repair of your chainsaw of any model, brand, trim levels and power of 1.2 kW to 6.4 kW, existing today.

Many years of experience in the Ukrainian market for the repair of chainsaws has given us regular customers and a high level of trust in us.

In the case of the necessary replacement of components, you do not need to wait a long time for the delivery of the necessary parts, as we have equipped our warehouse with a wide range of components.

Our customers receive reasonable prices for repairs and parts of chainsaws, as we work directly with manufacturers of parts for chainsaws.

If you are the owner of a private house or from time to time go out of town to visit the cottage, then you just need a saw. It is useful for quick and easy harvesting of firewood, as well as pruning of trees. Such a tool will be indispensable in the construction of verandas and arbors. Hand hacksaws and saws do not lose popularity, but the development of technological progress allows modern consumers to purchase excellent ones at an affordable cost.

Responses about household models

The simplest representatives of this class are amateur tools, which are represented by models with the ability to work for 45 minutes a day. Household models have power within 2 kilowatts, low-profile circuits are installed on them, which help reduce vibration during use. If you are interested in Oleo-Mac chainsaws, and to solve everyday tasks with the help of equipment, then home craftsmen advise you to resort to the optimal solution in the form of the above option. The performance of the circuits installed in such tools is not so high. But there are also positive features, including ease of use, as well as ease. The master will not feel strong loads on his hands in the process of completing tasks on the site. Such "Oleo-Mac" chainsaws will help to cope with small construction work, pruning trees and harvesting firewood. According to users, such a chainsaw will be enough to maintain order in the garden.

Semi-professional models

Semi-professional Oleo-Mac chainsaws, according to builders and home craftsmen, are ideal for those who plan to build their own home. In the process of carrying out these works, it will be necessary to process the lumber, as in the creation of a roofing frame system. If you are faced with the task of flooring, there will also be no way without a gas saw. Those who like to work in the garden will always need such equipment.

Professional Model Reviews

At home, to cope with a professional option without special skills will fail. This is due to a significant level of vibration, since the performance is very high. It should be noted and a very impressive weight, which exceeds 6 kilograms. This load will be noticeable for the hands, this is especially true for those who previously did not have experience with such equipment.

Power Reviews

Users argue that power is the main factor that affects the ability of the unit to handle massive wood. The higher this indicator, the faster you can cut a heavy trunk. In order to determine the needs, it is necessary to sort out the expected loads that will be placed on the tool. If the plans do not work with thick logs, or use the tool every day, then you can choose the Oleo-Mac chainsaw, the power of which does not exceed 2.6 kilowatts. Even if you have the amount necessary to purchase professional equipment, do not be tempted by high power. As users emphasize, this indicator certainly entails impressive weight. It will not be easy to work with the unit.

If you are the owner of a personal home or sometimes go out of town to visit the cottage, then you just need a saw. It will be needed for quick and easy harvesting of firewood, as well as pruning of trees. Such a tool will be indispensable in the construction of verandas and arbors. Hand saws and saws do not lose popularity, but the development of technological progress allows modern consumers to purchase good gas saws at an affordable price.

Responses about household models

The most ordinary representatives of this class are amateur instruments, which are represented by models with the ability to work for 45 minutes a day. Household models have a capacity of 2 kV, low-profile circuits are installed on them, which help to reduce vibration during operation. If you were intrigued by chainsaws "Oleo.Mac ”, and to solve with the help of equipment you assume household tasks, then home masters recommend that you resort to a good solution in the form of the above option. The performance of circuits installed in similar tools is not so high. But there are also positive features among which convenience in work, and also ease. The master will not feel strong loads on his hands in the process of completing tasks on the site. Such chainsawsOleo.Poppy ”will help to cope with carrying out a small system of work, pruning trees and harvesting firewood. According to users, such a chainsaw will be enough to maintain order in the garden.

Semi-professional models

Semi-professional chainsaws "Oleo.Mack ”, according to builders and home craftsmen, is an ideal option for those who plan to build their own home. In the process of carrying out these works, it will be necessary to process the lumber, as in the creation of a roofing frame system. If you are faced with the task of flooring, there will also be no way without a gas saw. Those who like to work in the garden will always need such equipment.

Professional Model Reviews

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Repair of the Oleo-mac Chainsaw (oil pump, carburetor )

Repairs Oleo-mac chainsaws (oil pump, carburetor ) Service site. VKontakte Group.

Chainsaw Oleo-Mac 941c

Oleo-Mac 941 Chainsaw C presented by an Italian manufacturer of garden equipment Oleo-mac. Equipped.

Situations in which adjustment is necessary

New chainsaws are supplied from the manufacturer with adjusted carburetors. This is called standard adjustment. But for the normal passage of the running-in process, it is necessary to lower the maximum engine speed, to adjust the carburetor. After running in, the chainsaw needs to be fine-tuned to achieve maximum engine efficiency.

Also, a signal for cleaning and adjustment is increased fuel consumption, which negatively affects the operation of the exhaust system. Simply put, the chainsaw begins to smoke very much and the muffler becomes clogged with carbon, which in turn will lead to a decrease in power. With a lack of fuel in the mixture, engine parts are poorly lubricated, and premature wear occurs. Also, a poor-quality mixture can cause the engine to jam due to overheating (this is one of the reasons why the chainsaw does not start).

Adjustment is necessary when the engine does not keep idle, stalls or does not develop full power.

The carburettor must be adjusted with clean air and fuel filters.

Tools

Correct adjustment of the carburetor of the chainsaw should be carried out using a special tool. a tachometer. It allows you to most accurately determine the maximum number of engine revolutions and adjust them according to the requirements of the manufacturer. To adjust, you need to have a small slotted screwdriver. For some models of chainsaws, you will need a special adjustment key, without which it is impossible to carry out work.

The key for adjusting some carburetor models is available only at service centers authorized by the manufacturer for the repair of chainsaws. This measure is aimed at reducing damage due to improper settings by inexperienced users and those who are engaged in repair, without having official permission to do so.

Setting up the chainsaw should, if possible, be carried out in official service centers that have a certificate from the manufacturer.

How to adjust the carburetor

The algorithm for setting up the chainsaw is quite simple and consists of the following steps:

Adjustment of the engine for smooth operation at low speeds.
Setting the carburetor for the correct flow of the fuel mixture at maximum speed.
Fine carburetor adjustment for idling.
Checking the chainsaw in all modes.

The carburetor must be adjusted after the engine has run a little and warmed up.

Now we will consider how the correct adjustment of the carburetor of the chainsaw goes in more detail. Almost all carburetor models have three adjusting screws. The screw (T) is responsible for fine tuning in idle mode. Screw (H) setting for maximum speed. The screw (L) controls the formation of the mixture at low speeds. By tightening the screws (L) and (H), the fuel supply and the mixture are leaner, respectively, revolutions increase.

Process description

If the carburetor of the chainsaw is not adjusted, and it is not possible to start the chainsaw, then the setting is started by setting the screws (L) and (H) to the standard setting. This is a 1/5 turn of the screws until fully tightened. After which, it is necessary to start the engine, let it run for a bit and warm up. The next step is setting the low speed mode. Optimum engine operation at the “bottom” can be achieved by adjusting the screw (L) and idle speed (T). To do this, first screw (L) is tightened until the maximum engine speed is obtained, then it is released by 1/4, and the screw idle is normalized by screw (T).

After adjusting the work on the "bottoms" is the adjustment of traction and maximum engine speed. To do this, slowly tighten the screw (H) and check the speed using the electronic tachometer.

exceeding the maximum engine speed declared by the manufacturer is unacceptable.

An important step is to check the saw in all operating modes after adjusting it, for this you need to allow the chainsaw to cool, and then start according to the cold tool start algorithm. If the saw starts up normally and is idling smoothly, you need to check how it saws. If in the process of checking deficiencies in the power of the chainsaw are found, it is necessary to repeat the adjustment of the screw (H) by unscrewing it and checking the traction in operation.

loss of traction at maximum speeds recommended by the manufacturer is an indicator of CPG wear or poor fuel quality.

Carburetor adjustment for Chinese chainsaw

Carburetors mounted on Chinese-made saws are made similarly to European ones and have the same tuning screws.

The carburetor of the Chinese chainsaw is adjusted according to the algorithm presented above, and is distinguished by the fact that during the initial adjustment of the screws (L) and (H) they must be turned out two turns. Further, the carburetors of the Chinese saw are regulated in the same way as the European ones.

Video

The setting of the carburetor of the saw can be studied in the video below. In this video, the wizard shows how the step-by-step adjustment of a Chinese-made chainsaw is performed without using a tachometer. Carries out after adjustment check in various modes.

Adjusting the carburetor of the chainsaw, although it seems a fairly simple process, but requires a very careful and responsible approach. The article describes the process in sufficient detail, however, if you have never regulated a chainsaw, you should turn to specialists, this will save time, nerves and money.

Responses about household models

Semi-professional models

Professional Model Reviews

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Repair of the Oleo-mac Chainsaw (oil pump, carburetor )

Repairs Oleo-mac chainsaws (oil pump, carburetor ) Service site. VKontakte Group.

Chainsaw Oleo-Mac 941c

Oleo-Mac 941 Chainsaw C presented by an Italian manufacturer of garden equipment Oleo-mac. Equipped.

Chainsaw Carburetor Adjustment Oleo-Mac 937

Oleo-Mac 937 is a popular amateur level chainsaw. The manufacturer himself defines its purpose as "a saw for intensive home use." A model from an Italian manufacturer is forced in its segment to compete with such venerable competitors as. Saw assembly is carried out in China; upon purchase, a one-year factory warranty is provided.

The manufacturer recommends using the “937th” for harvesting firewood, felling trees (while the diameter of the sawn trunk should not exceed 30 cm), pruning various plantings. Also, the Oleo-Mac 937 chainsaw is recommended for use in the construction of wooden residential buildings and farm buildings.

This saw can be taken with you on country trips to equip a parking place or to clear the road from felling.

Modifications

The described saw has two modifications. The first is the Oleo-Mac 937 16. the basic version of the chainsaw. The second is the Oleo-Mac 937 PowerSharp. This version is identical in technical specifications to the standard “937th”, but is additionally equipped with a quick sharpening system. The special version can be recognized by the original PowerSharp logo on the bus.

Saw blade

The Oleo-Mac 937 chainsaw buyer receives the following kit:

directly the saw in disassembled form (the tire and the circuit are disconnected from the main unit);
candle key;
instructions for repairing and operating a chainsaw (the instruction is also available in electronic form on the Oleo-Mac website in the model profile).

The PowerSharp version is additionally equipped with a nozzle for quick.

Technical data

The Italian manufacturer claims the following technical data for Oleo-Mac 937:

engine power: 2.2 hp (1650 watts);
engine displacement: 35.2 cubic cm;
tire length. 16 inches (41 cm);
fuel tank. 0.3 l, oil. 0.2 l;
chain pitch: 3/8 inch;
number of chain links: 57;
fuel: gasoline with an octane rating of "92";
standard oil for 2-stroke engines.

A decompressor and side chain tensioner are not provided for the saw.

Pros and Cons of Oleo-Mac 937

The power unit of the Oleo-Mac 937 chainsaw is equipped with a forged connecting rod and crankshaft, which significantly increases the engine’s life. Nickel-plated coating of the cylinder increases its strength characteristics. The automatic oil pump does not pump oil when idling.

The magneto chainsaw is equipped with an electronic control unit: the “brain” provides engine starting with a slight “pulling” of the starter, reduces fuel consumption, and gives the mixture ignition at low speeds. That is, an additional Oleo-Mac 937 chainsaw is not required to configure these parameters.

The saw is equipped with reusable nylon filters. Due to the large working surface area of the filter, the designers managed to increase the planned intervals for its replacement.

Also, the strength of the saw service is that access to the filters is carried out without using tools, the filter layer can be replaced right at the workplace. To prevent the filters from becoming covered by ice particles during winter operation, the Oleo-Mac 937 is equipped with an Ice Devays protective system, which additionally provides start-up and stable operation at low air temperatures.

Among the disadvantages, the following points can be distinguished:

inconvenient location of the chain tension screw;
in rare cases, uneven wear of the links was noticed on the “937” model, when the chain links were seamed on only one side.

User manual

ATTENTION! Complete instructions are supplied, and are also available on the manufacturer’s official website on the Internet. Working with the Oleo-Mac 937 chain saw requires compliance with safety requirements:

work is allowed only on well-lit and ventilated areas;
drunk people should not be allowed to work with the saw;
the saw operator must be fully dressed in protective equipment: headphones, plexiglass glasses, non-slip shoes with protected socks (protective equipment must be purchased separately);

Oleo-Mac 937 is mixed in a ratio of 1:50. It is forbidden to start a chainsaw with a protective cover on the tire. When working with a chainsaw, the front handle should be held with the left hand, the rear with the right. When working in cold conditions, you need to put the choke control in the appropriate position.

The instructions for the saw describe recommendations for the implementation of various types of work (felling, pruning, etc.). There are also instructions for the current repair and maintenance of the Oleo-Mac 937: carburetor adjustment is described, as well as minor malfunctions and how to solve them.

A universal model, from a well-known Italian manufacturer of garden equipment, is in great demand all over the world. The Oleo-Mac 937 chainsaw belongs to the Home Plus class, although its operational characteristics are not inferior to semi-professional chain chainsaws. A sufficiently powerful engine with a volume of 35.2 cm3 (2.2 hp) and low weight (4.1 kg.) Make it popular among builders, however, with its help you can prepare and cut firewood, clear the garden, or carry out landscape work.

Of the advantages of the model include:

Oil pump with automatic oil flow control;
Nickel cylinder extending engine life;
Forged steel connecting rod and crankshaft;
Electronically controlled magneto;
Tool-less access to silencer and air filter.

Description of the Oleo-Mac 937 chainsaw

Specifications

Features

Basic equipment

Cardboard box;
Manual, product passport and warranty card;
Saw case with gasoline engine;
Saw Chain Oregon;
Protective carry case on the tire;
Saw chain on 52 links, step 3/8 ″;
Combined candle key;
Starter pack: engine oil and chain.

Oleo-Mac 937. equipment

Preparation for work

When buying a chainsaw, conduct a thorough visual inspection of the product, pay special attention to the presence of a company warranty card.

After familiarizing yourself with the manual, you can proceed with the installation of the saw headset:

Unscrew the two fastening nuts and remove the cover that covers the drive sprocket;
Slide the shank of the tire over the studs;
Put the chain on the drive sprocket, then insert it into the guide grooves of the tire;
Install the protective cover and fasten the fastening nuts without tightening them all the way;
Adjust the chain tension so that the links do not sag, but the chain rotates freely along the tire;
Tighten the fixing nuts all the way;
Fill your chainsaw with fuel, pour oil into the automatic lubrication system;
Start the engine and get to work.

Important: the Oleo-Mac 937 chainsaw does not need a break-in, however, at the initial stage of operation, you should not saw thick logs and overheat the engine.

Repair of your chainsaw, carburetor adjustment and other settings are best done at service centers.

Fuel and lubricants

The fuel mixture for a two-stroke engine is prepared from motor oil and gasoline grade AI-92, 95 in a ratio of 1/50. The manufacturer recommends the use of Oleo-Mac Prosint 2T oil.

To lubricate the chain, special adhesive oils with additives are used that provide good lubrication of the saw set at any temperature. Oleo-Mac Polar Lube chain oil is best for your chainsaw.

Carb adjustment

Carburettor adjustment may be necessary if the operator noticed difficulties with idling.

To adjust the carburetor in the chainsaw:

Start the saw, turn the adjusting screw for high and low revolutions to the stop. Turn it back one and a half turns.
Warm up the saw for 5-10 minutes. Set idle screw.
With the right settings, the circuit will not move on the bus at idle.

Key chainsaw malfunctions

The cold engine does not start:

There is no fuel in the system
Ignition not included
Clogged or defective candle

Carburetor adjustments lost
Air filter clogged
Faulty breather

Advantages and disadvantages of the Oleo-Mac 937 chainsaw

Reliable and economical engine;
Convenient placement of management tools;
Effective vibration damping system;
The ability to install 40-centimeter tires;
High performance;
Long overhaul period and high maintainability;
Developed network of service points.

Requires high-quality fuels and lubricants;
Price.

Video review

Unpacking and review from the owner of Oleo-Mac

Oleo-Mac 937 chainsaw instruction manual

Adjustment carburetor chainsaws Oleo-Mack 941s

How to deal with problems in Oleo-Mac chainsaws

Actually important structural elements in Oleo-Mac chainsaws:
Start-up hurdles Chainsaws Oleo-Mac :
Problems working with the Oleo-Mac chainsaw:

Vital structural elements in Oleo-Mac chainsaws

Italian chainsaws from Oleo-Mac are:

Lightweight (domestic and semi-professional). with a tire up to 45 cm, used in everyday life and for small commercial tasks.
Professional. with a large saw bar, used for felling and harvesting lumber for sale.

The main elements that make up the Oleo-Mac chainsaw device of the original Italian production:

The fuel mixture of oil and gasoline (1:50) is poured into the fuel tank (for Italian chainsaws, the gas tank is 0.23–0.8 l, the largest gas tank in the Oleo-Mac GS 650 and Oleo-Mac GS 720 is 0, 8 liters, the smallest fuel tank. the lightweight Oleo-Mac 932C chainsaw. 0.23 liters).
Then the resulting fuel mixture from the gas tank is taken into the carburetor for mixing with air.
A saturated air mixture is pumped into the cylinder of a 2-stroke internal combustion engine, here it is ignited by a spark from a spark plug.
The engine starts the movement of the crank mechanism, the purpose of which is to convert reciprocating piston movements into shaft rotation.
The shaft is connected to a centrifugal clutch with an asterisk, which starts the saw chain. This is the way to cut with the Oleo-Mac chain saw.

The structural device also has:

cleaning the air supplied to the carburetor
saw set consisting of tire and chain
starter (manual or electric)
spark plug
muffler
oil tank for automatic chain lubrication
side chain tensioner
inertial brake (or, as it is also called, an electric chain brake to prevent a back strike).

What is an Oleo-Mac chainsaw primer?

Oleo-Mac chainsaw where to pour oil?

Chainsaw oil is used in two types:

Chainsaw carburetor adjustment.

Chainsaw Carb Adjustment.

How to adjust a carburetor on a chainsaw

turning the screw L or H the mixture is leaner, and we turn off the mixture made a mistake made a reservation was enriched on.

Adjustment chainsaw carburetor Oleo-Mac

Why doesn’t the Oleo-Mac chainsaw start?

The main reasons why the Oleo-Mack chainsaw does not start are sought, moving from simple to complex:

The banal lack of fuel in the gas tank or its insufficient amount to start.
Inspect all fuel hoses and connections, pay attention to crankshaft oil seals.
Improperly prepared fuel mixture. cook according to the instructions, use only that brand of gasoline with the corresponding octane rating, not higher and not lower. Remember to add engine oil to the fuel mixture.
The mixture is made on the basis of production for 1-2 weeks, after this period, gasoline loses its octane quality.
During the start, the spark plug was filled with gasoline. It is necessary to dry the candle without calcining it, drain the excess fuel mixture, wait half an hour and then put the candle back in place and repeat the start. It is advisable to have a spare spark plug if drying the gas-filled spark plug does not help.
The problem may be not only in the spark plug, but also in the poor contact of its tip with a high-voltage wire. If the contact is normal, and there is no spark from starting the starter, then the cause is in the ignition electronics. Unfortunately, this item is not repairable, it needs to be replaced.
If the tool does not want to start when starting, inspect the spark plug: its suspicious dryness means that there is no fuel in the cylinder, so the reason may be in the carburetor. The presence of black soot indicates that the carburetor was incorrectly adjusted, as a result of which the carburetor feeds too much fuel mixture into the air-fuel mixture or too much engine oil in the mixture.
serious reasons should be sought in the cylinder-piston group. Signs. the presence of chips and scoring on the cylinder and piston. Eliminate problems by boring the cylinder under a new piston group. You also need to check the piston rings. the play when the piston is swung by the connecting rod in the cylinder indicates the worn piston rings that need to be replaced.

Why does the Oleo-Mac chainsaw start poorly?

Why the Oleo-Mac chainsaw starts up poorly. the reason may be in the air filter clogged with dust.

Why does it stall chainsaw Oleo-Mac , when do you give gas?

Often on the forums of masters you can meet attempts to find out what needs to be done when the following problem appears: "Why does the Oleo-Mac chainsaw stall when I press the gas?"

Why does the Oleo-Mac chainsaw stall in this case? Obviously, the fuel mixture does poorly due to:

Clogged fuel filter
Clogged nozzle in carburetor.

The fuel filter is checked and cleaned very easily and quickly, and the carburetor jet must be checked at a service center.

In the event of a drop in power and a stalling chainsaw at idle, the cause may be a clogged muffler. Cleaning the exhaust duct and muffler from tarry exhaust deposits will help solve the problem.

How to run in the Oleo-Mac chainsaw?

One of the frequently asked questions of those who just bought an Oleo-Mac chainsaw, is it necessary to run the chainsaw and how to do it correctly?

The sequence of proper break-in gasoline saw Oleo-Mac:

Make a fuel mixture and fill it in a gas tank.
Generate 5–10 full gas tanks with minimal load. Ideal conditions for this are 2-3 minutes of use for 2/3 of the maximum possible saw power, then 15-20 seconds at idle. As a load for a break-in, combine business with pleasure. cut firewood with a small diameter of logs.
Then you need to adjust the carburetor. The Italian corporation Emak, producing Oleo-Mac chainsaws, adjusts the carburetor to meet the upcoming break-in.

Why chainsaw Is Oleo-Mac a bad saw?

Why does the Oleo-Mac chainsaw saw obliquely and crookedly, the answer is obvious: the reason is in the saw chain, in the violation of its cutting properties.

Most often why chainsaw Oleo-Mac saws obliquely, due to uneven blunting of the rows of chain teeth. Such uneven dullness occurs due to the following situations:

During the cut, the chain fell on a knot, a nail.
The tire was not periodically turned over so that the chain would wear out evenly.
During the last re-grinding, the work was done poorly. This often occurs during manual file sharpening. While it is desirable to use a professional grinding machine.
Bent tire. Very often, this problem occurs during felling of large trees, if the saw was clamped when the tree fell, and the tire was bent.

Modern chainsaws have a complex system and consist of several main nodes, which at times require maintenance and adjustment. Next, let’s talk how to adjust the carburetor on the Husk chainsaw.