Husqvarna 365 372XP Chainsaw Owners Manual

MAINTENANCE
Carburettor
Fine adjustment
When the machine has been run-inthe carburettor should
be nely adjusted. The ne adjustment should be carried
out by a qualied person. First adjust the L-jet, then the
idling screw T and then the H-jet.
Your Husqvarna product has been designed and
manufactured to specications that reduce harmful
emissions.
Function, Basic settings, Fine adjustment
Conditions
WARNING! Do not start the chain saw unless
the bar, chain and clutch cover (chain brake)
are tted, otherwise the clutch may come
loose and cause personal injury.
Before any adjustments are made the air lter should be
clean and the cylinder cover tted. Adjusting the
carburettor while a dirty air lter is in use will result in a
leaner mixture next time the lter is cleaned.This can give
rise to serious engine damage.
!
Function
Do not attempt to adjust the L and H jets beyond
either stop as this could cause damage.
The carburettor governs the engines 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.
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.
The setting of the carburettor means that the engine is
adepted to local conditions, for example, the climate,
altitude, fuel and the type of 2-stroke oil.
Place the machine on a at 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.
The carburettor has three adjustment controls:
-
-
L = Low speed jet
H = High speed jet
Low speed jet L
Turn the low speed jet L clockwise until it stops. If the engine
accelerates poorly or idles unevenly, turn the low speed jet L
anticlockwise until good acceleration and idling are achieved.
-
T = Idle adjustment screw
T
H
CAUTION! If the chain rotates while idling the T-screw
must be turned anti-clockwise until the chain stops.
Final setting of the idling speed T
Adjust the idle speed with the T-screw. If it is necessary to re-
adjust, turn theT-screw clockwise while the engine is running,
until the chain starts to rotate. Then turn counter-clockwise
until the chain stops. A correctly adjusted idle speed setting
occurs when the engine runs smoothly in every position. It
should also be good margin to the rpm when the chain starts
to rotate.
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.
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.
!
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.
High speed jet H
Basic settings and running in
At the factory the engine is adjusted at sea level. When
working at a high altitude or in different weather conditions,
temperatures and atmospheric humidity, it may be necessary
to make minor adjustments to the high speed jet.
The basic carburettor settings are adjusted during testing at
the factory.
Avoid running at a too high speed during the rst 10 hours.
CAUTION! If the high speed jet is screwed in too far, it may
damage the piston/cylinder.
CAUTION!  If the chain rotates while idling the T-screw
must be turned anti-clockwise until the chain stops.
When test run at the factory, the high speed jet is set so that
the engine satises the applicable legal requirements at the
same time as achieving maximum performance. The
carburettors high speed jet is then locked using a limiter cap
in the fully screwed out position. The limiter cap limits the
potential to adjust the high speed jet to at most half a turn.
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.
30
English
Product Specification
CategoriesChainsaw Manuals, Husqvarna Chainsaw Manuals
Tags,
Model Year2002, 2003, 2004
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- 40 pages
Document TypeOperator's Manual
LanguageEnglish
Product BrandHusqvarna, Chainsaw
Document File TypePDF
Publisherhusqvarna.com
Wikipedia's PageHusqvarna
CopyrightAttribution Non-commercial
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