MAINTENANCE
General
Function, Basic settings, Fine adjustment
The user must only carry out the maintenance and
service work described in this manual.
WARNING! Do not start the chain saw
unless the bar, chain and clutch cover
(chain brake) are fitted, otherwise the
clutch may come loose and cause
personal injury.
!
IMPORTANT! Any maintenance other than that
described in this manual must be carried out by your
servicing dealer (retailer).
Carburettor adjustment
Function
The carburettor can be designed in different ways,
depending on existing environmental and emissions
legislation. Some chain saws are equipped with
movement limiters on the carburettor’s adjuster screws.
These limit the adjustment possibilities to a maximum of
a 1/2 turn.
•
The carburettor governs the engine’s speed via the
throttle control. Air and fuel are mixed in the
carburettor.The air/fuel mixture is adjustable. Correct
adjustment is essential to get the best performance
from the machine.
•
•
Adjusting the carburettor means that the engine is
adapted to local operating conditions, e.g. climate,
altitude, petrol and the type of 2-stroke oil.
H
L
The carburettor has three adjustment controls:
L = Low speed jet
-
-
-
1/2
1/2
H = High speed jet
T = Idle adjustment screw
T
H
When your chain saw is equipped with a carburettor that
features movement limiters, the carburettor should be
adjusted according to the instructions under the heading
Carburettor with movement limiters.
When your chain saw is equipped with a carburettor that
does not feature movement limiters, the carburettor
should be adjusted according to the instructions under the
heading Carburettor without movement limiters.
L
•
•
The L and H-jets are used to adjust the supply of fuel
to match the rate that air is admitted, which is
controlled with the throttle. If they are screwed
clockwise the air/fuel ratio becomes leaner (less fuel)
and if they are turned anti-clockwise the ratio
becomes richer (more fuel). A lean mixture gives a
higher engine speed and a rich mixture gives a lower
engine speed.
H
L
The T-screw regulates the throttle setting at idle
speed. If the T-screw is turned clockwise this gives a
higher idle speed; turning it anti-clockwise gives a
lower idle speed.
Contact your servicing dealer (retailer) if you are
uncertain of which type of carburettor your chain saw
is equipped with.
Basic settings and running in
Carburettor with movement limiters
The basic carburettor settings are adjusted during testing
at the factory.Avoid running at a too high speed during the
first 10 hours.
H
L
CAUTION! If the chain rotates while idling theT-screw
must be turned anti-clockwise until the chain stops.
1/2
1/2
Rec. idle speed: 2700 rpm
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.
!
Your Husqvarna product has been designed and
manufactured to specifications that reduce harmful
emissions.
English – 29
| Categories | Chainsaw Manuals, Husqvarna Chainsaw Manuals |
|---|---|
| Tags | Husqvarna 385XP, Husqvarna 385XPG, Husqvarna 390XP, Husqvarna 390XPG |
| Model Year | 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
| Download File |
|
| Document Type | Operator's Manual |
| Language | English |
| Product Brand | Husqvarna, Chainsaw |
| Document File Type | |
| Publisher | husqvarna.com |
| Wikipedia's Page | Husqvarna |
| Copyright | Attribution Non-commercial |
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