Checking, Maintaining And Servicing Chain Saw Safety Equipment - Husqvarna 338XPT EPA III Operator's Manual

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
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.
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 0.6 mm (0,024
inch) 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.
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Canadian
MAINTENANCE
Checking the brake trigger
Place the chain saw on firm ground and start it. Make sure the
chain does not touch the ground or any other object. See the
instructions under the heading Start and stop.
Grasp the chain saw firmly, wrapping your fingers and thumbs
around the handles.
Apply full throttle and activate the chain brake by tilting your
left wrist forward onto the front hand guard. Do not let go of
the front handle. The chain should stop immediately.
Throttle lock
• Make sure the throttle control is locked at the idle setting
when the throttle lock is released.
• Press the throttle lock and make sure it returns to its
original position when you release it.
• Check that the throttle control and throttle lock move freely
and that the return springs work properly.
• Start the chain saw and apply full throttle. Release the
throttle control and check that the chain stops and
remains stationary. If the chain rotates when the throttle
control is in the idle position you should check the
carburetor idle adjustment.