Chain brake and front hand guard

MAINTENANCE

Fine adjustment

When the machine has been ”run-in” the carburettor should be ﬁnely adjusted. The ﬁne adjustment should be carried out by a qualiﬁed person. First adjust the L-jet, then the idling screw T and then the H-jet.

The recommended engine speeds are as follows:

	Max. fast idle speed, rpm	Idle speed, rpm
385XP	12500	2700
390XP	13500	2700

Conditions

•Before any adjustments are made the air ﬁlter should be clean and the cylinder cover ﬁtted. Adjusting the carburettor while a dirty air ﬁlter is in use will result in a leaner mixture next time the ﬁlter is cleaned. This can give rise to serious engine damage.

•Carefully turn the L and H-jets clockwise as far as they will go. Now turn the jets one turn anti-clockwise. The carburettor is now set to H = 1 and L = 1.

•Now start the machine according to the starting instructions and let it warm up for 10 minutes. CAUTION!

If the chain rotates while idling the T-screw must be turned anti-clockwise until the chain stops.

•Place the machine on a ﬂat surface so that the bar points away from you and so that the bar and chain do not come into contact with the surface or other objects.

Low speed jet L

Try to ﬁnd the highest idle speed by turning the low speed jet L clockwise then anti-clockwise. When the highest speed has been found, turn the low speed jet L 1/4 turn anti-clockwise.

+ 1/4

CAUTION! If the chain rotates while idling the T-screw must be turned anti-clockwise until the chain stops.

Fine adjustment of the idle speed T

Adjust the idle speed using the idle adjustment screw T, if it is necessary to readjust. First turn the idle adjustment screw T clockwise until the cutting attachment starts to rotate. Then turn the screw anticlockwise until the cutting attachment stops. The idle speed is correctly adjusted when the engine will run smoothly in every position. The idle speed should also be well below the speed at which the cutting attachment starts to rotate.

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.

•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 both the L and H jets are set too rich it will results in acceleration problems or too low a working speed.

Checking, maintaining and servicing chain saw safety equipment

Note! All service and repair work on the machine demands special training. This is especially true of the machine’s safety equipment. If your machine fails any of the checks described below we recommend that you take it to your service workshop.

Checking brake band wear

Brush off any wood dust, resin and dirt from the chain brake and clutch drum. Dirt and wear can impair operation of the brake.

Regularly check that the brake band is at least 0.6 mm thick at its thinnest point.

English – 31

385XP specifications

The Husqvarna 385XP is a powerful and versatile chainsaw, designed to meet the demands of professional loggers and landowners alike. Known for its exceptional performance and reliability, this model is engineered for heavy-duty tasks, making it a popular choice among forestry professionals and those requiring robust cutting tools.

One of the standout features of the 385XP is its impressive engine performance. The chainsaw is equipped with a 70.7 cc, 4.2 horsepower X-Torq engine, which not only delivers high power output but also ensures lower fuel consumption and reduced emissions, making it environmentally friendly without sacrificing performance. The innovative X-Torq technology allows for optimal combustion, enabling the chainsaw to run smoother and more efficiently.

The design of the Husqvarna 385XP focuses on user comfort and control. It features an ergonomic handle that reduces vibrations, enhancing the operator's comfort during extended use. The chainsaw's anti-vibration system minimizes the impact of vibrations on the user's hands, allowing for longer periods of operation without fatigue. This is crucial for professionals who spend hours in the field.

Another important technological aspect of the 385XP is its easily adjustable chain tensioning system, which simplifies adjustments and maintenance. The side-mounted chain tensioner allows users to make quick changes without the need for additional tools, ensuring that they can focus on the job at hand rather than fussing with equipment.

The 385XP is equipped with a high-quality cutting bar and chain, designed for durability and efficiency. The chainsaw features a 20-inch bar that provides ample cutting capacity, allowing for precise cuts in a variety of wood types. Its sharp chain ensures clean cuts with minimal kickback, enhancing safety and effectiveness when tackling larger logs or dense trees.

Another notable feature is the Air Injection system, which utilizes centrifugal force to remove larger dust and debris particles before they reach the air filter. This prolongs the filter’s life and decreases maintenance requirements, allowing users to spend more time working rather than cleaning.

In conclusion, the Husqvarna 385XP is a reliable chainsaw that combines power, efficiency, and user comfort. Its cutting-edge technologies, durable construction, and ease of use make it an ideal choice for professionals in the forestry industry and skilled homeowners alike.

Husqvarna 385XP manual Chain brake and front hand guard, Checking brake band wear