MAINTENANCE
High speed jet HChecking the front hand guard
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 Make sure the front hand guard is not damaged and that there
speed jet.are no visible defects such as cracks.
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 satisŢes the applicable legal requirements at the
same time as achieving maximum performance. The
carburettorOs high speed jet is then locked using a limiter cap Move the front hand guard forwards and back to make sure it
in the fully screwed out position. The limiter cap limits the moves freely and that it is securely anchored to the clutch
potential to adjust the high speed jet to at most half a turn.cover.
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 difŢculties
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 the inertia brake release
Checking, maintaining and servicing
chain saw safety equipmentPlace the chain saw, with the engine switched off, on a stump
or other stable surface. Release the front handle and let the
saw fall by its own weight, rotating around the rear handle
Note! All service and repair work on the machine demands towards the stump.
special training. This is especially true of the machineOs
safety equipment. If your machine fails any of the checks
described below we recommend that you take it to your
service workshop.
Chain brake and front hand guard
Checking brake band wear
Brush off any wood dust, resin and dirt from the chain brake When the bar hits the stump the brake should be applied.
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.
30 � English |
ACEC
