Maintenance; Maintenance Schedule - Husqvarna 420 EL Bedienungsanweisung

Introduction
WARNING:
safety chapter before you do maintenance
on the product.

Maintenance schedule

WARNING:
from the power outlet before you do

maintenance.

Maintenance
Clean the external parts of the product.
Make sure that the power trigger and the power trigger lockout function correctly
from a safety point of view.
Clean the chain brake and make sure that it operates safely. Make sure that the
chain catcher is not damaged. Replace it if necessary.
Turn the guide bar for more equal wear. Make sure that the lubrication hole in
the guide bar is not clogged. Clean the bar groove.
Make sure that the cutter and cutter guard have no cracks and that they are not
damaged. Replace the cutter or cutter guard if they have cracks or if they have
been exposed to impact.
Make sure that the guide bar and saw chain have sufficient oil.
Do a check of the saw chain. Look for cracks and make sure that the saw chain
is not rigid or unusually worn. Replace if necessary.
Sharpen the saw chain. Do a check of its tension and condition. Do a check for
wear on the drive sprocket and replace is necessary.
Clean the air inlet on the product.
Make sure that the screws and nuts are tight.
Use a file to remove burrs from the edges of the guide bar.
Empty and clean the oil tank.
Blow through the product gently with compressed air.
Maintenance and checks of the safety
devices on the product
To do a check of the front hand guard
Regularly do a check of the front hand guard and the
inertia brake release.
1. Make sure that the front hand guard is not damaged
and that there are no defects, such as cracks. (Fig.
81)
96
Maintenance
Read and understand the
Remove the power plug
The following is a list of the maintenance steps that you
must do on the product. See
information.
2. Make sure that the front hand guard moves freely
and that it is attached safely to the product. (Fig. 82)
3. Put the product, with the motor off, on a stump or
other stable surface.
4. Hold the rear handle and let go of the front handle.
Let the product fall against the stump. (Fig. 83)
5. Make sure that the chain brake engages as the
guide bar hits the stump.
Safety on page 87 for more
Before
Weekly Monthly
use
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1782 - 001 - 03.02.2022
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