Husqvarna 395XPG 用户手册

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页码 44
MAINTENANCE
English
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 31
Fine adjustment of the idling speed T
Adjust the idle speed with the T-screw. If it is necessary to 
re-adjust, turn the T-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.
High speed jet H
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.
CAUTION!  If the high speed jet is screwed in too far, 
it may damage the piston/cylinder.
When test run at the factory, the high speed jet is set so 
that the engine satisfies the applicable legal requirements 
at the same time as achieving maximum performance. 
The carburetor’s 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.
To adjust the carburetor correctly you should contact a 
mechanic with access to a rev counter.
Correctly adjusted carburetor
When the carburetor is correctly adjusted the machine 
accelerates without hesitation and the machine 4-cycles 
a little at max. speed. 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.
Checking, maintaining and 
servicing chain saw safety 
equipment
Chain brake and front hand guard
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 0.024 inch 
(0.6 mm) thick at its thinnest point.
Checking the front hand guard
Make sure the front hand guard is not damaged and that 
there are no visible defects such as cracks.
Move the front hand guard forwards and back to make 
sure it moves freely and that it is securely anchored to the 
clutch cover.
!
WARNING! Contact your servicing 
dealer, if the idle speed setting cannot be 
adjusted so that the chain stops at idle. 
Do not use the chain saw until it has 
been properly adjusted or repaired.
Note! All servicing and repair work on the machine 
requires special training. This is especially true of the 
machine
′s safety equipment. If your machine fails any of 
the checks described below we recommend you to 
contact our servicing dealer.