Husqvarna ST 20E Manual De Instrucciones página 45

Adjusting the hedge trimmer
There are 4 adjuster screws
(A) with locking nuts (B) on
the blade bar. These control
both of the blades in relation
to each other and keep the
blades together. The play
between the blades should
be as little as possible to
obtain maximum output
from the hedge trimmer at
the same time as
maintaining sharpness. The
play should always be under
0.10 mm. This should be
carried out after every 20
hours of operation.
Proceed as follows:
1. Loosen all 4 locking nuts
(B).
2. Loosen all 4 adjuster
screws (A)
3. Place the hedge trimmer
attachment in a vice.
4. Insert a Philips-head
screwdriver in the drive
axle and rotate the drive
axle using the screwdriver.
Ensure the blade bar is
lubricated.
5. Tighten screw (A) closest
to the gear housing at the
same time as the axle (C)
is rotated. When the
rotation of the axle feels
stiff loosen the screw (A) a
little. Only so much that
the drive axle rotates
easily.
6. Now loosen screw (A) 1/
4 turn.
7. Tighten the locking nut
(B). The play between the
blades should now be
correct. Check once again
that the drive axle moves
easily.
8. Repeat the adjustment for
each of the other 3
adjuster screws and
locking nuts.
MAINTENANCE
A
B
Lubrication (hedge trimmer
attachment)
Lubricate the blade bar using
normal engine oil before use.
There are two grease nipples
on the gear housing. Lubricate
with 4-5 strokes using a high
pressure grease gun after every
20 hours of operation.
Using the hedge trimmer
The hedge trimmer is ideal
for cutting hedges and
bushes in parks and large
green areas.
As the machine is carried
close to the body the strain
on the back is less than
when using traditional
hedge trimmers. The
thickness of branches that
can be cut depends on the
hardness of the plant. The
opening between the blades
is 23 mm. Always make
sure that you have at least
half throttle before applying
the hedge trimmer on
material to be cut.
Otherwise there is a risk of
jamming and stoppages. See
also section "Safety
instructions for the hedge
trimmer attachment".
Two-part shaft
The end of the drive axle
in the lower shaft should
be lubricated with grease
every 30 hours. There is a
risk that the drive axle ends
(splined coupling) on two-
part shafts jam if they are
not lubricated regularly.
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