DIY Husqvarna 365 chainsaw repair

Adjusting the carburetor of a Husqvarna 372 XP chainsaw involves adjusting the engine to suit local conditions such as climate, altitude, gasoline quality and 2-stroke oil type.

The carburetor is equipped with three adjustment options:

L = Low speed jet.
H = High speed jet.
T = Screw for adjusting idle speed.

The L and H jets regulate the amount of fuel to match the air flow supplied by the throttle valve.

If the jets are screwed in clockwise, the mixture will be lean (less fuel in relation to the amount of air), and when unscrewing the jets counterclockwise, the mixture will be richer.

A lean mixture gives higher rpm, and a richer mixture gives lower rpm. The T screw adjusts the position of the throttle at idle.

If the screw T is turned clockwise, the number of idle turns will increase, and if the screw is turned counterclockwise, the number of turns will decrease.

Husqvarna 365 XP Chainsaw Pre-Adjustment and Running-In

When checking the operation at the factory, a preliminary adjustment of the carburetor was carried out. Pre-adjustment: H = 1 revolution, respectively L = 1 revolution.

In order for the engine parts of the Husqvarna saw to receive sufficient lubrication (running in), the carburetor is set at a slightly increased enrichment of the fuel mixture for the first 3-4 hours of operation.

For such an installation, the maximum number of revolutions is set at 6-700 rpm below the recommended one.

If it is not possible to check the maximum number of revolutions with a tachometer, then the H jet should not be set to a fuel mixture below the preset.

Do not exceed the maximum number of revolutions. If the chainsaw chain rotates at idle speed, turn the screw T counterclockwise to bring it to a complete stop.

Fine adjustment of the carburetor of the Husqvarna 365, 372 XP chainsaw

After running in your Husqvarna 372 XP chain saw, you need to fine-tune the carburetor.

First adjust the L jet, then the idle screw T and then the H jet. The following maximum number of revolutions is recommended: 12500, at idle speed 700 rpm.

During adjustment, the air filter must be clean and the cylinder cover replaced.

When adjusting a carburetor with a dirty air filter, the fuel mixture will be too lean the next time the air filter is cleaned or replaced.
A too lean mixture will damage the engine.

Carefully screw the L and H jets to the bottom and then unscrew them 1 turn. The carburetor is now set to H = 1 and L = 1.

Start the chain saw and let it run for about 10 minutes.

Place the Husqvarna 365 chain saw on a level surface with the bar facing away from you and with the bar and chain in contact with the surface.

Find the maximum idle speed by slowly turning the low speed jet clockwise and counterclockwise.

When the maximum number of revolutions has been found, turn the L jet counterclockwise 1/8 to 1/4 revolutions.

Fine adjustment of idle speed with screw T

The idle speed setting is carried out with a screw marked with the letter T.

If adjustment is necessary, the idle screw T should be turned clockwise until the chain starts to rotate.

Then turn the screw counterclockwise until the chain is stationary.

The correct number of revolutions is considered, at which the chainsaw engine works exactly in all positions with a sufficient margin up to such a number of revolutions at which the chain begins to rotate.

High speed jet H

The high speed jet H controls the power of the Husqvarna 372, 365 XP chainsaw and the number of revolutions.

A too lean mixture at the high speed jet will result in increased saw speed and risk of engine damage.

Run the saw at full throttle for 10 seconds. H = 1.

Then turn screw H 1/4 turn counterclockwise. H = 1 1/4.

Then let the chain saw run for another 10 seconds and listen for the difference in sound at maximum rpm. Repeat the procedure with the adjustment screw H turned 1/4 turn counterclockwise. H = 1 1/2.

The saw is now running at H ± 0, H = +1/4 and H = +1/2 based on the preset. At full throttle, the engine sound will be different for each setting.

The H jet is considered correctly seated when the chain saw is running with little noise at full throttle and no load.

If a lot of smoke comes out of the muffler and the saw makes noise, then the mixture is too rich.

Rotate the H jet clockwise until you get the correct sound setting.

Correctly adjusted Husqvarna 365 chainsaw carburetor, 372 XP

The carburetor is adjusted correctly when the saw is gaining speed and when it is running with a little noise at full throttle and no load.

The chain must not rotate at idle speed.

If the mixture on the L jet is too lean, it may be difficult to start the engine and the engine will not revive well.

Setting the H jet to an excessively lean mixture will result in lower saw power, poor revs and / or engine damage.

An excessively rich mixture on the L and H jets creates problems when picking up speed or gives too low operating speed.

Specifications Husqvarna 372 XP

Engine type - Gasoline
Working volume of the cylinder, cc - 70.7 cm3
Maximum power, kW - 3.9 kW (9600 rpm)
Rated power at working speed, h.p. - 5.3 HP (9600 rpm)
Idling speed - 2700 rpm
Spark plug - Champion RCJ7Y 5776166-02 (61141), Husqvarna HQT-1 5774840-01 (63893), NGK BPMR7A
Interelectrode gap - 0.5 mm
Fuel tank capacity 0.77 l
Torque, max. - 4.3 Nm / 6600 rpm
The volume of the chain lubricant tank - 0.4 l
Chain Lube Pump Type - Adjustable Flow
Chain pitch - 3/8 ''
Chain Link Thickness - 1.5mm / 0.058 ''
The length of the bus included in the package is 45cm / 18 inches
Recommended tire length, min-max 38-71cm / 15-28 inches
Chain speed at maximum. revolutions - 21.4 m / s
Equivalent vibration level, front / rear handle - 3.5 / 4.0 m / s2
Guaranteed sound power, dB (A) - 115
Weight (without cutting equipment), kg - 6.1 kg

Repair of the husqvarna three hundred and sixty-five chainsaw in artisanal conditions video

I've always wondered, but do people always repair chainsaws themselves or hand them over to a service under warranty? Have you heard anything about such a step? Can you tell me this secret differently? Please reveal this secret.

What remains for our client to do is the existing breakdowns of chainsaws are divided into two subgroups, malfunctions associated with the service of the engine with its complete complexes not nodes, specifically the fuel supply system, ignition device, working version of the exhaust system, cylinder-piston system. Not related to the malfunction of other elements that are not related to the engine, as a rule, these are: both the lubrication system and not the tire.

Disturbances in the functioning of chainsaw engines.quite often, They boil down to performing such a manifestation as the engine does not start, the engine starts, but then it stalls, as it is also called, refuses to work at all, the engine does not develop full power, then of course it works, then only if at idle, not at the slightest load stalls.

When carrying out repairs chainsaw husqvarna it is necessary to act independently by the following method of exclusion - to perform one by one, do not check what remains to be done for our client, the possible nuances of a breakdown, starting with the development of those that simply require diagnostics, which will take you a minimum amount of time.

Ignition system, nettle can be "dry", without getting sand or water there.

All variants of malfunctions of the engine itself, as a rule, are obtained due to failures of the complex of accounting ignition programs. Do-it-yourself chainsaw repair calm 180 video. When they appear, the search for possible malfunctions should start with an inspection of the candles. All about repairing a chainsaw with your own hands everything about repairing a chainsaw with your own hands. This is justified by the fact that their full-fledged state will also give you information not on the necessary functionality of the fuel complex of accounting programs. If a problem occurs, turn out the plug completely, do not inspect it by light.

So I was always interested, but people always repair chainsaws themselves, in other words, hand them over to the service under warranty? Have you heard anything about this decision? Can you tell me or is it a secret? Please reveal this secret.

If the warranty is still valid, why repair it yourself? Moreover, Husqvarna has a decent service, they do not follow their reputation, so a refusal of the guarantee is unlikely (if you did not knock on the saw with a sledgehammer) At the end of the warranty period, minor repairs (replacing filters, candles, cleaning channels) have an option not to do it yourself , these are simple procedures.

I have been using Husqvarna one hundred and thirty-seven for eight years now. I took it to the service once to replace the rings. he did not risk it. I changed the leading sprocket a couple of times myself. Carburetor adjustment and repair. Appointment of Husqvarna 365 and where do it yourself. I must say that the clutch sprocket attachment system is not quite convenient for repairs. on the same calm, not solo, it is much easier to remove it. The inconvenience is caused by the fact that without a special tool it is impossible to lock the sprocket without unscrewing the nut that holds it. The problem was solved in a simple old-fashioned way. I didn’t unscrew the candle through the hole and put a simple clothesline into the cylinder. You need to shove a lot of ropes so that the piston rests against it and does not even allow the leading sprocket to turn, in the end, today you can safely unscrew it.

Now the popularity of chainsaws has increased, since their price has become acceptable for ordinary summer residents. However, it is worth remembering, dear visitors of the site, the lower the price of a chainsaw, the more often the oil breaks down.

Now quite often they began to sell Chinese fakes of chainsaws of such brands as Stihl not Husqvarna. This, when you are offered a Stihl chainsaw for a low price, the temptation is enormous, especially since it has become impossible to distinguish a fake. Don't buy Chinese counterfeits! They are not worth it to constantly repair them! Do not spare the money, do not buy a chainsaw from a representative of the company, so as not to suffer with it in the future (there is an option to take in replacement of spare parts for chainsaws).

How to make DIY chainsaw repair... DIY Husqvarna 142 chainsaw repair. In this article we will look at how to repair chainsaws with an internal combustion engine.

The most common causes of chainsaw breakdowns:

With this item, everything is quite easy - you just need to replace the chain at the chainsaw.

• Chainsaw won't start
• Starts up, but immediately stalls
• Doesn't work at full capacity

Let us dwell on these points in more detail. There are many reasons why your chainsaw won't start.

First, you need to check the fuel level. If everything is in order with him, we look at the trigger. If everything is fine with him, then you should definitely check the candle. Prevention and timely repair of the Husqvarna chainsaw do-it-yourself repair. 372 xp. In order to check, you need to unscrew and look at the candle. The spark plug should have a gap of 0.5 mm. necessary for the normal operation of the chainsaw. All about repairing a chainsaw with your own hands in connection with this, due to the operation of the motor when. Pay attention, dry candle or not. If there are no signs of fuel on the spark plug, then the cause of the breakdown is most likely in the carburetor. Perhaps he was clogged with something. Then it must be removed and cleaned.

If you installed a new plug, cleaned the carburetor, but still the chainsaw will not start, then you need to look at the cylinder-piston group (CPG). Basically, this is what makes your chainsaw work. Our task is to pull out the cylinder inside which the piston is installed. If it has characteristic seizures or chips, then it needs to be changed. Chainsaw husqvarna (husqvarna) 365 xp: device, specifications, breakdown options and DIY repair. Chainsaw Husqvarna 365, Husqvarna 365 sp. DIY repair. If you also see scratches or scuffs inside the cylinder, then it must also be changed. DIY Husqvarna chainsaw repair: Also, the cylinder can be bored or oversized.

Today, almost every owner of a private house or an advanced summer resident uses a chainsaw, which is highly mobile, unpretentious in operation and repair. Among the many models of gasoline vehicles and equipment on the market, the Swedish brand Husqvarna is worth highlighting. Founded 400 years ago, the Husqvarna company first produced weapons, and in 1959, in connection with the need to expand the line of products, launched the production of chainsaws. Unlike competitors, this manufacturer sought to improve the layout of the saw. To reduce the level of noise emitted by the engine, the famous designer from Sweden Sixten Sazon used a muffler in the Husqvarna chainsaw using the example of a motorcycle.

Almost all professional and amateur chainsaws are equipped with air-cooled two-stroke gasoline engines.

Chainsaw Husqvarna: main components

This assumes the presence of at least one cylinder with heat sink fins. The fuel supply system (carburetor) acts as a gasoline-air mixer. Dirt, dust, shavings should not enter the working combustion chamber together with the fuel mixture, and filters are installed on the saws to clean the supplied air. Manufacturers recommend changing the filter once a season. In the interval between replacements with a frequency of once for 10-15 fillings, it must be cleaned.

For convenience and ease of starting the internal combustion engine in any chainsaw, a starter is provided, which is a reel with a wound cable and a handle. Even the most powerful husqvarna chainsaw is equipped with an intelligent starting mechanism.

In order to reduce the vibration transmitted to the hands of the feller, a special device is installed on the tool. In addition, this mechanism prevents the tire from "pulling" when cutting wood.

Despite the fact that ideal chainsaws have not been created and it is unlikely that anyone will succeed, this Swedish company strives for design perfection and increasing the power of its models. The entire husqvarna range of saws are characterized by pleasant enhancements that make their owner's job much easier.

General view of husqvarna chainsaw

These positive options include:

• use of the fuel "suction" button (primer) for the convenience of starting the internal combustion engine;
• automatic adjustment of the carburetor by the Auto Tune system;
• side chain tensioning mechanism;
• environmentally friendly and powerful X-Torg engine;
• vibration reduction system;
• a mechanism for forced lubrication of the chain through a hole in the driven sprocket;
• centrifugal air purification Air Injection, which makes it possible to change the filter less often;
• universal key for service and repair.

In order to avoid the acquisition of fake Husqvarna chainsaws, it must be remembered that their licensed production is established exclusively in Sweden, USA, Russia, Brazil.

Regardless of the power, performance and size of the models, their problems are divided into 2 types:

1. Malfunctions of the engine, fuel supply system, cylinder-piston group, muffler;
2. Transmission breakdowns (malfunctions of the brake system, tire, chain, clutch, etc.).

Based on many years of experience, most experts say with confidence that mainly the causes of breakdowns lie in the operation of the internal combustion engine. The striking manifestations of the incorrect operation of the chainsaw motor include:

• difficult start;
• unstable idling;
• does not develop full power;
• extraneous sounds are heard during operation.

In order to reduce the complexity of diagnostics and subsequent repair of the Husqvarna chainsaw with their own hands, experts advise starting with simpler units and parts for maintainability.

The first step in ignition diagnostics is to check the spark plug. It must be unscrewed from the cylinder shaft with a special wrench or socket head. The gap between the side and center electrodes should vary from 0.7 to 1.5 mm.

Husqvarna chainsaw malfunctions

If this distance is exceeded, there will be a periodic absence of a spark. On the contrary, if the gap is too small, the discharge will not be sufficient for full ignition of the fuel mixture. You can set the recommended clearance parameters using locksmith probes, which you can buy at any car store.

If there are traces of gasoline on the surface of the candle, then most likely it does not completely burn out. It is not necessary to look for the causes of malfunctions in the Husqvarna ignition system in the absence of moisture on the plug, since in this case it is necessary to adjust the fuel system, the steps of which are described below.

The most common types of ignition failures include improper clearance (more or less 0.2 mm) between the flywheel and the ignition coil. It can also be set independently by means of the probes.

The fuel supply system is one of the most difficult in the unit, and therefore it is worth taking it as seriously as possible and following certain rules. Gasoline may not flow to the carburetor for the following reasons:

- clogged breather (holes in the tank lid);

- the fuel filter is clogged with dirt.

To clean the breather, you need to prepare a regular sewing needle. In the second case, it will be necessary to dismantle the tank and replace the fuel filter.

Carburetor with adjusting screws

The entire range of the Swedish manufacturer is equipped with traditional carburetors with three adjustment screws:

1. Screw "T" - setting the mixture supply at idle;
2. Screw "L" - adjustment at low speed;
3. Screw "H" - at maximum speed.

First of all, it is necessary to "find" the highest speed with the screw L in the absence of load (at idle speed). Then turn it counterclockwise by a quarter of a turn.

If, in this position, the chain on the bar continues to move, you need to achieve a stop by means of screw T.

Husqvarna chainsaw carburetor

To adjust the Husqvarna carburetor at maximum speed, after pressing the accelerator key for the full, wait 10-15 seconds. Turn the screw "H" clockwise ¼ turn and listen to the operation of the internal combustion engine. If during engine operation there is an extraneous ringing "squeal", gradually unscrew the bolt until it disappears. On the contrary, in case of excessive smoke production, it is required to lean the mixture, gradually tightening the screw.

After setting the minimum and maximum revolutions, we adjust the saw idle.To do this, turn the screw "T" clockwise until the chain starts moving along the bus.

Correct tuning of the fuel delivery system requires a tachometer (a device for measuring revolutions per minute), as well as the experience of the owner.

The ICE starting system is used to turn the shaft and, as a result, the appearance of a spark and ignition of the fuel mixture. Like most models, Husqvarna's kick starter consists of:

Chainsaw starter Husqvarna

When the starter jerks, the drum ratchet engages with the engine shaft, as a result of which the crankshaft will rotate. Despite the condition of the tool, starting the engine the first time is quite problematic. To facilitate the start, it is required to make several presses of the primer (the button for pumping the mixture). A backup spring can be provided in the design of the starter, which, after being compressed by the main one, gives a sharp push to the shaft. As such, the repair of the starter is not provided, and if one of the elements breaks down, it will need to be replaced.

The cutting saw chain of this manufacturer consists of working teeth, depth stops, locking pins. The most loaded in the sawing process are the cutting links made of high-alloy structural steel. By design, they are divided into left and right-handed. The cutting width is determined by the distance from the side edges of the left and right links.

DIY husqvarna chain tensioning

The main characteristic of the husqvarna chainsaw chain is the pitch, which can be measured from the first to the third rivet by dividing the result by two. Due to the fact that the inch is adopted in the Western system of calculation, manufacturers in their passports indicate the step in inches (25.4 mm) with the instrument. Medium chainsaws use 3/8 '' chains, and heavier weighted chains use 4.

One of the most important indicators of the chain is the thickness of the shank, which for most models is 1.3 mm. They are often used on specialized and general amateur instruments. The thickness of the links must be matched to the groove in the bar, as excessive thickness can lead to chain breakage or fall.

When the chain is relaxed, it must be tightened by means of the mechanism located on the side of the unit. Having previously removed the left side cover (2 bolts), weaken the tire for the husqvarna chainsaw. Next, we unscrew the longitudinally tightened bolt, thereby moving the guide away from the power unit. When properly adjusted, the chain should roll easily but not dangle on the bar.

An important protective unit in a chainsaw is certainly the chain brake, which, in the event of a kickback, blocks the rotation of the cutting edges. As a result of the tire rebound in the direction of the feller and, as a consequence, his possible injury, the friction mechanism disengages the drive sprocket and the drive shaft.

Husqvarna Chainsaw Chain Bar Slip

The brake start can be of contact or inertia design. In the first case, the protection will be triggered as a result of the return throw of the unit. The inertial brake system is the generation of large inertial forces acting on the drive shaft. Regardless of the features of a particular design, experts recommend purchasing chainsaws equipped with similar mechanisms.

After the repair and adjustment of the Husqvarna chainsaw, it is required first of all to check the performance of the brake assembly.

In all models of chainsaws presented, oil is supplied to the tire automatically.

The main components of the husqvarna chain lubrication system

Before starting work, you need to make sure that there is a lubricant in the reservoir. The oil pump interacts with the drive sprocket, and as the shaft rotates, the gear delivers lubricant to the running surface of the chain.Due to the constant presence of oil on the cutting edges, the chain is less prone to friction and, as a result, loses its properties noticeably more slowly. If the lubrication mechanism fails, the husqvarna saw will have a fine brown chain. Periodically, the left protective cover of the unit must be removed and the oil hole cleaned with compressed air or a needle. The delivery rate of the pumping unit directly depends on the number of revolutions of the tool.

Lawn mowers, trimmers, brush cutters. Knowledge base

Chainsaw repair Husqvarna 137, 142, 240, 365 do it yourself - video

The chainsaw is an indispensable assistant for every real owner.

Since the inception of the instrument, its popularity has grown rapidly.

So, the Husqvarna 142 chainsaw has the highest functionality. It is widely used not only in forestry, but also in personal plots.

Choosing a chainsaw is quite simple. So, the ideal thing is to focus on well-known brands such as Husqvarna. This company produces a wide range of such tools. Husqvarna 240 and other models are of the highest quality and functionality. But, unfortunately, even such tools are not insured against breakdowns.

After the chainsaw appeared in the house, many owners breathed a sigh of relief.

After all, this tool allows you to solve complex problems quite quickly and easily.

But, here it is worth considering that the chainsaw often fails. This is due to the fact that it is subjected to enormous loads during operation. Therefore, you must always be ready to eliminate breakdowns.

Now there are a huge number of workshops that offer their services for the repair of chainsaws and other tools. But, this does not mean that when a malfunction occurs, you must immediately run to the repair shop.

Some faults can be removed by hand. To do this, you just need to know the main prerequisites for the occurrence of breakdowns and the method of their elimination.

So, in the process of frequent use of the tool, breakdowns may occur:

• carburetor;
• muffler;
• oil pump;
• ignition and fuel supply systems.

Each of these breakdowns can be removed by hand. The main thing is to know the sequence of work when eliminating one or another malfunction.

Read the article on self-repair of the Stihl 180 chainsaw here.

If the tool suddenly stops working, then the first thing to check is the ignition system. And you need to start with a candle.

You need to do the work very carefully. For this, a special hook is used. First you need to disconnect the wire and remove the candle.

If it is dry, it means that no fuel is entering the cylinder.