Review of Partner 351 chainsaw, do-it-yourself repair, reviews

In the segment of non-professional chainsaws, Partner 351 occupies a worthy place. Lightweight, productive and reliable, the saw allows you to perform a wide range of wood sawing tasks at the household level.

The chainsaw is ideal for working in a summer cottage. It copes well with felling small fruit and berry trees and trimming branches. With its help you can work in the forest with small diameter trunks. Partner 351 is suitable for construction work.

Specifications

The Partner 351 saw has good power and performance indicators, despite its compact size and weight of 4.7 kg:

  • motor power 1400 W (1.9 hp);
  • tire 35 cm. It is possible to install a tire 41 cm;
  • 56 link chain with 3/8 inch pitch;
  • spark plug - Bosch WSR 6F;
  • fuel tank capacity 380 g;
  • oil tank 200 g;
  • noise level is just over 100 dB.

The air filter operating on the CCS system helps to significantly reduce fuel consumption. The double air purification system increases the service life of the Partner 351 chainsaw motor. The chain operates at high speeds.

Thoughtful ergonomics and a reliable vibration damping system allow you to use the tool for several hours without interruption.

The chain brake works instantly, which makes working with the chainsaw even more comfortable and safe.

Factory equipment

Partner p340s has standard equipment:

Pros and cons of the Partner p340s chainsaw

Partner 340 has a number of features that distinguish this model from analogue representatives of other companies. So, this includes the following:

  • low product weight - 4.5 kg, frequent tooth pitch, which ensures reliable, stable operation.
  • long autonomy guaranteed by a 250 ml fuel tank;
  • large length of the bar, which allows you to saw wood with a large cross-section.
  • longitudinal engine placement, vibration damping system, chain stopper activated in two ways.

No particular design flaws were noticed in the Partner 340 chainsaw. Some complaints relate to the quality of the plastic used, the increased consumption of chain lubrication, and the service life of the component units.

Device

In terms of the structure and location of the working units, the Partner 351 chainsaw is no different from other models and consists of:


Diagram - Partner 351 device


Description of the diagram for the Partner 351 device

Video

The Partner 351 chainsaw has a serious power failure resulting in interruptions. This drawback is the adapter installed between the engine and the carburetor (we talked about this above, the location of the adapter was also noted in the photo).

Eventually the game comes into play and the chainsaw starts sucking air. This malfunction manifests itself as a failure at startup (the saw simply does not start) or during operation in the form of instability of turns that they involuntarily rise or fall.

The author of the video explains in detail what caused this problem on the Partner 351 chainsaw and how to fix it yourself.

Setting up the carburetor

The Partner 351 chainsaw has several operating mechanisms that require periodic inspection and maintenance. One of them is a carburetor.

It is not recommended to repair the carburetor of the Partner 351 chainsaw with your own hands, but it is possible to make minor adjustments. There are two main breakdowns that can be fixed by adjusting the carburetor yourself:

  1. The chain spins while the engine is idling. To correct the problem, use the adjusting screw. First, turn it completely clockwise. Then make 4.5 turns counterclockwise. The fault should disappear.
  2. Incorrect supply of fuel mixture. There may be several reasons. From unbalancing adjusting screws to breaking carburetor parts. In any case, the adjustment follows the same pattern.

To adjust the carburetor, there are three adjusting screws: L – for high speeds, H – for low speeds, T – idle speed of the Partner 351 chainsaw.

  1. The adjustment begins with screw T. To do this, start the saw and turn the adjusting screw counterclockwise until the chain stops.
  2. Then turn screw L a quarter turn counterclockwise. During adjustment, the idle speed should have the largest turns.
  3. Screw H is turned a quarter turn counterclockwise.

After these manipulations, a tachometer is taken and the revolutions are checked. They should correspond as much as possible to the speeds indicated in the passport of the Partner 351 chainsaw. If you still decide to adjust the carburetor of the Partner 351 chainsaw with your own hands, we recommend reading the article about adjusting the carburetor on a chainsaw. This general article contains all the necessary information and will greatly help you in this difficult process.


Carburetor adjustment screws

Disadvantages of the saw

On the Russian market you can find low-quality fakes of the Partner 350 chainsaw, which is not only additional evidence of its popularity, but also harms the brand as a whole. And other models of this brand are popular with summer residents and farmers.

If you are ready to consider the Partner 350 as your home tool for sawing thin trees, trimming branches and other not very voluminous work, then you should also know the disadvantages, most often mentioned by their owners:

1. The vibration damping system is not of very high quality, as a result of which the hands get tired quite quickly. But, considering that this is a household tool that requires 15–20 minutes of rest every 20–25 minutes of work, you can put up with this drawback.

2. Oil leakage from the chain lubrication system, which, however, affects most chainsaws equipped with it, including the more famous relative of Partner chainsaws - Husqvarna. (link)

3. Lack of visual control of the oil level, which is not very convenient in operation, and operating the saw without lubrication will lead to rapid stretching, overheating and wear of the chain.

Of course, you can use this saw to cut down a tree up to 30 - 35 centimeters thick, but its main purpose is to work on the site. Therefore, in conclusion, we offer you the most objective video review of this model:

Dear readers, if you have any questions, please ask them using the form below. We will be glad to communicate with you;)

  • list of components and parts;
  • information on how to correctly read symbols on equipment;
  • safety precautions when working with a saw and compliance with sawmill technology;
  • instructions for the assembly sequence of the tool;
  • correct composition of fuel mixtures and requirements for chain lubrication;
  • instructions for maintenance of individual components;
  • table of problems and methods for eliminating them;
  • technical characteristics of the Partner chainsaw.

Official documents developed to help equipment owners provide comprehensive information on the correct operation of the saw.

Instructions for starting a chainsaw

The Partner 351 chainsaw works on the same principles and has a similar design as other gas-powered tools:

  1. Before turning on for the first time, all components of the Partner 351 chainsaw are securely screwed on, and the integrity of the body is checked.
  2. Before each start, the chain tension is checked. If necessary, the chain is tightened or relaxed using the adjusting screw.
  3. Before each start, the oil quantity is checked.
  4. The chainsaw can only be started from a hard surface. The foot should press the instrument firmly to the ground.
  5. Before starting, the damper is set to the “open” position.
  6. The start button is moved to the “on” position. after which you need to press the primer 5 times and start pulling the starter cord. The main thing is to start the chainsaw smoothly, without jerking.
  7. After starting, the engine should idle for 60 seconds. Then you can get to work adjusting the power using the throttle.


Launch of the Partner 351 XT chainsaw

Chainsaw Partner 351 will not start – causes and solutions

Most often, the cause of this problem is the flooding of the spark plug, which is responsible for producing the spark necessary to ignite the fuel in the internal combustion engine cylinder. In this case, the owner of the chainsaw will need to inspect the spark plug and, if necessary, rinse it in clean gasoline. You can install the part back only when it is completely dry.

Often the Partner chainsaw does not start due to a broken gap between the flywheel and the built-in ignition coil. In normal condition, these parts should be located at a distance of 0.5 mm from each other. If the gap is larger, it will need to be adjusted. It is best to do this using a special template that is installed between the flywheel and the magneto. After this, by turning the screws, the operator will be able to bring the parts closer to the distance required to properly start the gasoline saw.


The third reason for the breakdown of the Partner saw is a malfunction of the fuel system. Due to long-term operation of the saw, the fuel pump may fail or one of the tubes may lose integrity. In these cases, you will need to immediately replace the pump or tube without waiting for fuel to leak into the system.

The last common reason for a chainsaw not starting is the banal use of low-quality fuel. Fuel and motor oil that do not contain the necessary components will not be able to ensure the operation of the saw. In this case, the fuel needs to be replaced.

Do-it-yourself repairs and basic faults

During operation of the Partner 351 chainsaw, various breakdowns and malfunctions may occur. Some of them can be fixed with your own hands, without contacting service centers and repair shops.

  1. When the engine is running, a lot of black smoke is emitted, does the chainsaw stall at high speeds? Most likely the muffler is clogged. To fix the problem, you need to remove it and remove all debris and carbon deposits. Over many years of operation, the muffler of the Partner 351 chainsaw, and not only that, becomes heavily clogged with carbon deposits. After wet cleaning, the muffler should dry. During repairs, the inlet from the muffler is covered with a piece of cloth.

  2. No fuel supply? There may be several reasons: The fuel filter or the hole in the fuel tank is clogged. To fix it, you need to remove and clean the fuel hose or breather.
  3. Problems with carburetor adjustment, including clogging of its channels and membranes. The Partner 351 chainsaw carburetor consists of many small parts. For repairs, it is better to contact a service center.
  4. Lack of fuel in the tank. To fix it, you need to pump up the fuel and fill the tank.
  • Problems in the cylinder-piston group, namely loss of engine power or crankcase gas contamination? Such malfunctions are extremely rare; accurate diagnosis and elimination may require special equipment or a complete replacement of the cylinder block with the piston. You can try to visually assess the condition of the system; to do this, you need to remove the muffler:
      If there is a loss of engine power, then most likely there is a compression problem. To diagnose, you need to use a pressure gauge to measure the pressure in the cylinder. If it is significantly less than the standard indicator of 8-9 atmospheres, then a complete replacement of the cylinder-piston unit will be required.
  • If there is intense formation of gases in the crankcase, then you need to carefully examine the condition of the piston ring. Any microcrack or chip on its surface violates the tightness of the system. The ring must be removed and replaced. To do this, it is better to contact a repair shop.

  • Cylinder - piston group Partner 351
    You can learn more about solving problems with idling and engine starting from the Partner 351 saw repair video.

    Adjustment of the Urals

    It is slightly different in that it should not be carried out at sharp maximum speeds, but should be ensured that the chain picks them up quickly, but smoothly, without moving along the tire.

    In any case, you should take the adjustment very seriously, because if it is done incorrectly, the saw will not stay with you for a long time. Take care of your tools and if you are not confident in your abilities, it is better to take them to a professional.

    Any of them, even strong Friendship, needs attention and care. And then the chainsaw will be your faithful assistant for many years to come.

    When purchasing a HUS365 chainsaw, you should be prepared for the fact that after a month of using it, you will not want to deal with any saw other than this brand. This is explained by its reliability, affordability, and most importantly, ease of operation.

    Review

    Partner 351 has been in operation for 6 years. I bought it after reading numerous reviews on the Internet. I use it as an assistant at the dacha. There is a forest nearby, periodically I cut down dead wood for firewood. The saw copes with all tasks. Light weight allows you to work with the chainsaw at different angles. It’s true that the saw stalls when cutting thick, sticky logs, but it’s not designed for that. A couple of years ago I changed the cap on the fuel tank. This year the spring flew out of the handle, I went to the store and bought it myself. There were no serious damage. One time the chainsaw started smoking heavily. I read on the Internet that the problem may be a clogged muffler. I took it out and cleaned it with a brush. The saw worked like new. In general, I'm happy with the purchase; I'm not considering any alternatives yet.

    When adjustment may be needed

    With proper use, a good chainsaw (or any other) should serve you well for a long time. But anything can happen...

    The most common reasons:

    1. The fixing screws are loose
    2. The engine is worn out (in this case, adjusting this chainsaw, like Goodluck or Sturm, will only help for a while; ideally, it’s better to immediately take it in for repairs)
    3. The carburetor is clogged (in this case it will also have to be cleaned).

    Information support

    Operation of the tool, routine maintenance, disassembly and assembly of faulty and worn components or units, determination of the cause of failures and their elimination does not require special qualifications. An exception may be fine tuning of the carburetor.

    The sequence of preparation for launch, features of maintenance work, methods for identifying and troubleshooting faults with your own hands, as well as other useful information are included in the operating instructions included in the factory package.

    The use of recommended fuels and lubricants, timely maintenance and competent operation guarantee the tool a low-cost development of the assigned overhaul and working life.

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