Husqvarna K 4000 Bedienungsanweisung Seite 21

1. Always keep the cooling air openings clear and
clean to cool the product sufficiently.
2. Blow the compressed air regularly into the product.
Functional inspections
To do a general function inspection
WARNING: Never use damaged cables.
They can cause serious, even fatal,
personal injuries.
1. Make sure the cord and extension cord are intact
and in good condition. Never use the product if the
cord is damaged, you must hand it to an approved
service workshop for repair.
2. Make sure the nuts and screws are tight.
To inspect the water delivery system
1. Check the nozzles on the blade guard are not
clogged.
2. Clean as necessary.
3. Check that the filter on the water connector is not
clogged.
4. Clean as necessary.
To replace the carbon brushes
Replace the carbon brushes if they are worn, cracked or
in any other way damaged. Replace all carbon brushes
at the same time.
397 - 001 -
1. Loosen both screws (A) and (B) to remove the
inspection cover.
2. Remove the cable that holds the carbon brush.
3. Lift the spring and then remove the carbon brush
from the brush retainer.
4. Clean the brush retainers with a dry brush.
5. Carefully blow away the dust.
6. Install the new carbon brushes and, at the same
time, make sure they slide easily in the brush
retainers.
7. Fold down the springs and tighten the cable.
8. Operate the new carbon brushes for approximately
40 minutes while idling.
To fill gearbox grease
Do not fill the gear housing fully with grease. The grease
expands while the temperature of the product increases
during operation. If you fill the gear housing fully with
grease, it could cause damage to the seals and leakage
of grease.
The gear housing should contain 90 g (0.2 lb) of grease
in total. Use only grease that is recommended by
Husqvarna.
You must disassemble the parts that follow to replace
the grease in the gear housing:
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