MAINTENANCE

WARNING! Contact your servicing dealer, if

!the idle speed setting cannot be adjusted so that the chain stops. Do not use the chain saw until it has been properly adjusted or repaired.

High speed jet H

The high speed jet H influences the power and engine speed of the machine. If the high speed jet is set too rich (H-jet screwed in too far) the machine will over-rev and this will damage the engine. Run the machine at full throttle for about 10 seconds. Then turn the H-jet 1/4 turn anti-clockwise. Run the machine at full throttle for another 10 seconds or so and listen to the difference in the fast idle speed. Repeat this procedure with the H-jet turned a further 1/4 turn anti-clockwise.

H

You have now run the machine at settings of H =±0, H=+1/ 4, H=+1/2 relative to the basic settings. At full throttle the engine has sounded different for each setting. The H-jet is correctly adjusted when the machine burbles a little. If the machine ”screams” then the machine is set too lean. If the muffler emits a lot of smoke and the machine burbles a lot then the setting is too rich. Turn the H-jet clockwise until the setting sounds right

CAUTION! To ensure correct adjustment you should enlist a qualified mechanic who has access to a tachometer. The recommended maximum fast idle speed must not be exceeded.

Correctly adjusted carburettor

When the carburettor is correctly adjusted the machine accelerates without hesitation and 4-cycles a little at full throttle. It is also important that the chain does not rotate at idle. If the L-jet is set too lean it may cause starting difficulties and poor acceleration. If the H-jet is set too lean the machine will have less power, poor acceleration and could suffer damage to the engine.

If the L and H-jets are set too rich it will lead to acceleration problems or too low a working speed.

Starter

WARNING! When the recoil spring is wound

!up in the starter housing it is under tension and can, if handled carelessly, pop out and cause personal injury. Always be careful when changing the recoil spring or the starter cord. Always wear protective goggles.

Changing a broken or worn starter cord

Loosen the screws that hold the starter against the crankcase and remove the starter.

Pull out the cord approx. 30 cm and hook it into the notch in the rim of the pulley. Release the recoil spring by letting the pulley rotate slowly backwards.

Undo the screw in the centre of the pulley and remove the pulley. Insert and fasten a new starter cord to the pulley. Wind approx. 3 turns of the starter cord onto the pulley.

Connect the pulley to the recoil spring so that the end of the spring engages in the pulley. Fit the screw in the centre of the pulley. Insert the starter cord through the hole in the starter housing and the starter handle. Make a secure knot in the end of the starter cord.

30 – English

Page 30
Image 30
Husqvarna 365, 372XP Starter, High speed jet H, Correctly adjusted carburettor, Changing a broken or worn starter cord

372XP, 365 specifications

The Husqvarna 365 and 372XP chainsaws are powerful and versatile tools designed for both professional loggers and serious homeowners. Known for their robust construction and reliability, these models offer a perfect blend of performance and user-friendly features.

The Husqvarna 365 is equipped with a 70.7 cc engine that delivers impressive power, making it suitable for demanding cutting tasks. This chainsaw is designed for all-day use, ensuring that operators can tackle large trees and tough woods without losing momentum. The engine utilizes Smart Start technology, which allows for easier starting with minimal effort. This innovation reduces the resistance in the starter cord by up to 40%, enabling rapid and hassle-free ignition.

On the other hand, the Husqvarna 372XP boasts a slightly larger 72.2 cc engine, making it one of the most powerful saws in the market. Specifically tailored for professionals, this chainsaw excels in heavy-duty applications and has the ability to handle extreme workloads. Both models are designed with a high RPM, ensuring smooth cutting performance and efficient chip flow, which contributes to cleaner cuts and enhanced productivity.

A significant feature of these chainsaws is their ergonomic design, which includes a comfortable handle for better grip and control during operation. The chainsaws also feature an adjustable oil pump that allows users to customize the oil flow for the chain and bar, which helps minimize wear and prolongs the lifespan of the saw.

Safety is paramount with both the 365 and 372XP models. They are equipped with a chain brake system that automatically stops the chain in the event of kickback, ensuring user protection. Furthermore, the low vibration technology significantly reduces vibrations experienced by the operator, promoting comfort during prolonged use.

In terms of maintenance, both chainsaws come with a quick-release air filter that makes it easy to access and clean, ensuring optimal engine performance over time. The built-in fuel pump facilitates easier starting after long periods of inactivity, making these tools reliable for various cutting tasks.

In summary, the Husqvarna 365 and 372XP chainsaws stand out for their powerful engines, user-friendly features, and advanced safety technologies. They are engineered to meet the high demands of professional users while also being accessible for those who need a reliable chainsaw for home use. Whether for felling trees or limbing, these models deliver excellence in performance and durability.