Chainsaws Partner 350 - device, characteristics

Chainsaw device Partner 350

Chainsaws Partner 350 are equipped with a reliable 2-stroke gasoline engine with a power of 1.3 kW. The engine is equipped with an effective forced air supply system, which allows the internal combustion engine to operate in the most difficult weather conditions. The engine design includes an electronic ignition system and a durable fuel pump, which makes starting the chainsaw smoother and faster. The piston group and the engine cylinder are coated with liquid chromium - this protects the internal combustion engine from corrosion and extends its service life.

The manufacturer has provided the model with a fuel primer for manual pumping of fuel. This makes it possible to use the tool throughout the year. The starting drum of the model is equipped with an impeller, which automatically cleans the starter of dirt.

The model includes an operator protection system. It consists of a right hand guard and a double inertial brake. The chain is lubricated automatically using an oil pump. To tension the chain, there is a sprocket on the side of the chainsaw, which requires 2 keys to adjust.

To clean the air, the model includes an improved filter equipped with a CCS system. It extends the life of the filter and makes it possible to save fuel.

All internal mechanisms and spare parts of the tool are protected by a reliable plastic case. It can withstand falls from small trees and accidental impacts against foreign objects.

The Partner 350 model stands out for its ergonomics. It is equipped with two rubberized handles in the front and back. Switches and adjustment buttons are located at the rear of the tool, close to the operator's hands.

Pros and cons of the Partner 350 chainsaw

Like any mechanism, a chainsaw has its pros and cons. The main positives will be the following:

The product is a product of a well-known manufacturer. This speaks volumes about the quality of the saw and the developed service network.
The engine is equipped with a primer, which makes it easier to start, especially in the cold season.
The piston and cylinder of the engine are additionally treated with chromium, which improves their performance and helps extend the service life in general.
The light weight of the 350 Partner and the relatively short bar make it much easier to control the saw.

Of course, there are shortcomings, but against the general background they look insignificant. Somewhat difficult access to the air filter and the lack of visual monitoring of the lubrication level do not improve the weather. Those who have installed an extended tire note low engine power. It `s naturally. That's how it should be. A triple violation - an unauthorized change in design parameters by the manufacturer, additional load on the engine and a direct violation of the operating instructions will certainly not improve the operation of the unit.

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Chainsaw Partner 350 – model characteristics

Saw Partner 350 has good factory parameters.

Specifications for this popular model include:

power – 1.7 l. With.;
maximum shaft rotation speed – 130,000 rpm;
tank volume for filling fuel – 400 ml;
tank volume for filling oil – 200 ml;
the recommended length of the tire used is 35–40 cm;
chain pitch – 3/8 “;
weight with saw set – 4.8 kg.

Thanks to its light weight and small dimensions, the Partner 350 model can be used at high altitudes without additional insurance for the operator. This makes it possible to use a chainsaw to fell trees to clear tree trunks of dry branches.

Delivery kit for Partner 350 model

The manufacturer supplies the tool along with everything necessary to assemble and start working with the tool. The model is supplied with:

tire, 16" long with a groove width of 3/8" and a shank width of 1.3 mm;
chain, 16" long and 3/8" groove wide;
combination key;
instruction manual in Russian.

If necessary, the buyer, for an additional fee, can purchase a branded case, a spare chain for the Partner 350 chainsaw, as well as keys that will simplify the maintenance and repair of the tool.

Features of disassembling the Partner saw

Like any equipment and procedures with it, disassembling the Partner saw involves some features that its owner should be aware of. You can learn a lot from our videos, but you should focus on the following nuances:

The crater cover is installed without a gasket, but instead it is worth applying red sealant with a thin ball. Be sure to degrease both surfaces first so that they have better contact;
use a special puller to remove the flywheel, although many specialists have adapted to using a wrench and lightly tapping with a drift;

It is not at all difficult to disassemble the Partner saw, relying on high-quality videos and step-by-step recommendations from our service specialists. In general, this mechanism consists of similar elements as most user-level chainsaws. Therefore, its disassembly and reassembly will not be difficult for you. The Kosi Kosa petrol tool store is pleased to offer you high-quality tools, as well as informative articles on the operation and repair of mechanisms.

Chainsaw oil Partner 350

To extend the service life of the Partner 350 model, you should carefully consider the choice of fuel and oil. To refuel the tool, you need to use gasoline with an octane rating of at least 90. AI-92 gasoline is best suited for a chainsaw.

To mix with fuel, you will need to purchase special oil for two-stroke engines. It has all the necessary additives and substances that extend the life of the engine. It is best to use branded oils from Stihl or Husqvarna brands.

The fuel mixture for the Partner 350 model should be prepared in a ratio of 50:1, that is, 20 ml of oil should be diluted in 1 liter of gasoline.

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If the saw does not start, then:

there is no spark on the spark plug;
no fuel;
no air comes.

First, check for spark: unscrew the spark plug, attach it to the high voltage wire and slide it onto the cylinder, pull the starter. If there is a spark, clean and adjust the gap on the spark plug (0.5 - 0.65 mm). If this is not the case, you need to change: either the flywheel or the coil (magnet). In addition, the spark plug itself or the high-voltage wire may break.

The next step is to check the fuel supply. To do this, disconnect the supply hose from the carburetor and check its presence. Absence may indicate that the fuel filter or delivery system is clogged. And the carburetor may also be clogged.

If you do not have experience in repair and cleaning, entrust this work to specialists.

If the air supply deteriorates, the saw should start, but it will not work properly. Remove and wash the air filter. Place it back only after it is completely dry.

If the saw works well, it works at idle and stalls when gas is supplied. The muffler is probably blocked. Take-off, dismantling, washing, installation and operation.

Easily with your hands you can also change the saw blade and chain, carburetor, starter, oil pump, ignition and clutch.

Do-it-yourself adjustment of the Partner 350 chainsaw carburetor

Adjusting the standard carburetor of a tool is necessary in cases where the engine speeds up slowly, as well as when there is a sharp increase in the amount of fuel consumed. This procedure will help reduce the volume of exhaust gases and extend the life of important saw mechanisms.

There are holes in the upper left part of the tool body that provide easy access to the adjustment screws. If you are adjusting the carburetor of the Partner 350 chainsaw for the first time, then it is best to remove this part of the body. This is necessary in order to see the position of the heads of the factory adjusting screws.

After removing the housing, you will need to move all the adjusting screws to the fully tightened position, and then unscrew them half a turn.

Next, the setup procedure should be performed in this order:

When adjusting a basic carburetor with the cover previously removed, remember that the standard screw on the left is responsible for adjusting the amount of the fuel mixture, and the right one is responsible for its quality. The carburetor also has a third screw, designated T. It can be used to adjust the position of the basic throttle valve when the engine is idling;
After installing the screws in the desired position, you will need to start the faulty Partner chainsaw and give its engine time to warm up. As soon as the standard cylinder heats up, you need to start adjusting the position of the screw for the amount of fuel used. In this case, you need to tighten the screw in the direction of the clock until the motor reaches maximum speed. Immediately after this procedure, the base quantity screw will need to be turned a quarter turn in the opposite direction;
If after this the engine idle speed is increased or decreased, then they need to be adjusted using screw T;
After this, you need to adjust the quality of the fuel mixture. To do this, the right screw will need to be turned until the motor reaches maximum rotation speed. After this, you need to turn it a quarter turn in the opposite direction.

After completing the above steps, you need to turn off the tool. After this, you will need to start the tool’s motor again and check its operation. Provided that the carburetor of the Partner 350 saw is configured correctly, the model’s engine will operate much more stable and quieter. The amount of fuel consumed will also be significantly reduced.

DIY repair

Not all chainsaw malfunctions are related to carburetor failure or improper adjustment. In this case, you will have to repair the Partner chainsaw yourself, which is easy to do if you have the tools. This work is carried out in several stages, which depends on the cause and nature of the breakdown:

Problems with the fuel system. Most often this is due to contamination of the fuel filter or breather. In the first case, you need to remove the fuel hose and clean it. It must be washed and dried thoroughly before reinstallation. As a preventative measure, it is recommended to change the fuel filter every three months. Additionally, it may be necessary to clean the breather, for which it is convenient to use a needle or thin wire. The air damper is cleaned in the same way.
Chainsaw carburetor repair Partner. Adjustment does not always lead to the desired result. The cause may be clogged channels. You can use compressed air to clear the blockage. It must be remembered that reassembly can only be carried out if the parts are clean and dry.
Muffler cleaning. If you need to repair a chainsaw when the tool starts to stall at high speeds, you will have to disassemble and clean the muffler. To do this, the part must be removed, all bolts unscrewed and disassembled. After this, use simple detergents to remove carbon deposits from all surfaces, and then dry thoroughly using a hairdryer. Under no circumstances should carbon deposits be removed using a dry method, as they contain substances that are hazardous to health and should not be inhaled.

More complex problems are also possible, such as wear of the piston and crank mechanism, which cannot be eliminated on your own. Therefore, sometimes you will have to turn to specialists for help.

Chainsaw Partner 350 – ignition adjustment

If the Partner 350 saw stops starting, then you need to check the condition of the spark plug and ignition system. To do this, you will need to unscrew the part and inspect it. If it is clean with small light spots, then you need to adjust the tool’s ignition system.

Next you need to check the voltage of the high-voltage cable. To do this, use a light bulb or probe. If there is no voltage, the problem is a broken wire. If it is intact and is not broken anywhere, then you need to adjust the gap in the ignition system of the Partner 350 model.

To adjust the clearance, turn the 2 side bolts located next to the tool flywheel. As a result, the flywheel moves away from the ignition coil. After this, you will need to install a probe between the parts and turn the side bolts in the opposite direction. In this case, the flywheel should move closer to the coil. At the end, you need to carefully remove the probe and assemble the saw.

What to do if the Partner 350 chainsaw does not start

Now that you know what caused the breakdown, it's time to get down to business. A faulty ignition system can only be repaired after disassembly. To do this, remove any remaining fuel from the tank. Then carefully disconnect the wire and remove the spark plug (a special key is provided to remove it).

Test it to see if it works. To do this, place the ignition cable on the spark plug, and connect the spark plug nut and cylinder using pliers. Now start the starter. Is there a spark? This means the spark plug is in working order. No spark? This means that it will not be possible to revive the spark plug, and it must be replaced. What can you do with a working candle? Already by the appearance of the spark plug one can judge the repair method.
The candle is completely dry. This means that it is not wetted by the fuel mixture. The problem must be looked for at the stage of fuel entering the cylinder, it is disrupted. The spark plug and the ignition system as a whole have nothing to do with it. Reinstall the spark plug and look for the real cause of the problem.
The spark plug is overfilled with fuel mixture. The first thing, of course, is to wipe it with a napkin and put it aside. Now you can look for the cause in incorrect carburetor adjustment. While the spark plug is air drying, you can shut off the fuel supply and turn on the starter to check the combustion chamber. After a few minutes, the spark plug can be replaced in its place in the mechanism and the chain can be restarted.
The candle is covered with a layer of soot. Burning occurs as a result of improper fuel composition. There are two options here: either you saved money and filled the chainsaw with low-quality gasoline, or the proportions of the mixture of gasoline and oil were violated. The candle needs to be cleaned properly. To remove a plug from carbon deposits, a needle, thin awl or similar tool from available means will do. The electrodes also need to be cleaned.

In addition, in any case, it doesn’t hurt to make sure that the chainsaw’s carburetor is adjusted correctly. Do not begin adjustments until you have cleaned the air and fuel filters. If the filters are ok, use the adjustment screws.

One of them (S) is intended for idling, the other two are for maximum (H) and minimum (L) speeds, respectively. Gradually turn the screws clockwise. After stopping, make two turns in the opposite direction.

Chainsaw Partner 350 – malfunctions and their elimination

Most owners of this Partner model encounter problems that can be considered typical for this configuration of the tool. To be able to eliminate them, you should understand the causes of breakdowns and study the most effective methods of repairing them.

Chainsaw Partner 350 starts and stalls - how to solve the problem?

The most common cause of this breakdown is a clogged air filter. Due to dust, debris and insects, it is not able to pass the amount of air that is necessary for the normal operation of the Partner 350 chainsaw. In this case, you will need to remove the filter and wash it with clean gasoline. If this does not help, then the filter element should be replaced completely.

Another common cause is a faulty spark plug. To check, you will need to unscrew the part and inspect it. If there are small light spots on the spark plug, it means the part is working properly. However, if the ceramic walls of the candle are covered with a thick layer of soot and oil, then it needs to be cleaned. To do this, you need to heat the candle with a lighter and carefully scrape off the carbon deposits. If this does not help, the spark plug will need to be replaced.

What to do if the Partner 350 chainsaw does not start?

In this case, you need to carefully check the ignition system of the tool. Most often, the saw will not start if the gap between the magneto and the ignition coil is broken. In this case, you will need to disassemble the saw and adjust the distance between these parts. If you don’t have a sample on hand, you can use a pocket calendar or a paper business card instead.

Also, the Partner 350 chainsaw may not start due to a clogged fuel filter. If a lot of debris has accumulated in it, then it will not allow the amount of fuel the engine needs to pass through. In this case, the filter will need to be replaced.

The chain on the Partner 350 chainsaw is not lubricated - troubleshooting

The main reason for this malfunction is a loss of tightness or a break in the hose through which oil circulates for the chainsaw chain. In this case, you need to remove the top and side shields of the chainsaw body, and also inspect them for stains. To solve the problem you need to replace the worn hose. When installing, sealant will need to be applied where it is attached to the pump.

If the cause of the breakdown does not lie in the hose, then you need to inspect the oil pump. It may be clogged or broken. If you cannot wash the part, then it is best to replace it with a new one.

Filling a spark plug on a Partner 350 chainsaw - troubleshooting

Often the spark plug on a chainsaw begins to flood due to prolonged use of an incorrectly prepared fuel mixture. If you mix a large amount of oil in gasoline, this will cause the fuel pump to malfunction. Oil will flow from it into the housing, including onto the spark plug of the chainsaw.

Another common problem is a broken fuel pump. To check its operation, you should remove the tool body and start the engine. Next you need to press the gas trigger several times. If oil flows out of the pump, it means it is faulty.

As a rule, chainsaw fuel pumps cannot be repaired. It's best to replace it completely. To extend the life of the new pump, in the future you need to use only high-quality fuel and motor oil to refuel the Partner 350 chainsaw.

How to use it correctly

How to use gas powered tools correctly is described in detail in the documentation. The manual attached to each chainsaw contains comprehensive information about operating rules, safety precautions during operation, and basic adjustments.

Working with a chainsaw begins with starting the engine. There are differences between starting a cold and a warm engine. In an unheated engine, fuel does not evaporate well and the mixture becomes too lean for normal operation. To enrich the mixture, the carburetor air damper is controlled. Before the first start, use the lever to close the air damper.

Starting is performed by quickly but smoothly pulling the starter cable. When signs of ignition of the mixture appear, open the air damper and let the saw run for several minutes at idle speed.

The operating instructions for the chainsaw do not recommend carrying out repairs yourself in case of malfunctions, but with experience in maintenance, most of the work can be done independently.