Removing The Guide Bar And Saw Chain; Tensioning The Saw Chain; Filling Up With Saw Chain Oil - Stihl HTA 66 Manual De Instrucciones

English
► Fit the saw chain in the guide bar groove so
that the arrows on the tie straps on the top of
the bar point in the direction of rotation.
7
► Fit the guide bar and saw chain on the pole
pruner and check the following points:
– The drive links of the saw chain are seated
in teeth of the chain sprocket (7).
– The collar stud (5) is located in the slot in
the tail of the guide bar (6).
– The peg of tensioner slide (4) engages the
hole (8) in guide bar (6).
The guide bar (6) may be fitted either way round.
The logo on the guide bar (6) may also be upside
down.
► Turn the tensioning screw (3) clockwise until
the saw chain fits snugly against the guide
bar. Make sure the drive links engage the
guide bar groove.
The guide bar (6) and saw chain fit snugly
against the pole pruner.
► Fit the chain sprocket cover (2) so that it is
flush with the pole pruner.
► Fit the nut (1) and tighten it down firmly.
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5
6
8
6
3
7 Assembling the Pole Pruner
7.2.2 Removing the Guide Bar and Saw
Chain
► Switch off the pole pruner and remove the bat‐
tery.
► Rotate the nut counterclockwise until the chain
sprocket cover can be removed.
► Remove the chain sprocket cover.
► Turn the tensioning screw counterclockwise as
far as it will go.
The saw chain is now slack.
► Remove the guide bar and saw chain.
7.3

Tensioning the Saw Chain

The saw chain expands or contracts during cut‐
ting work. The saw chain tension changes as a
result. Check the saw chain tension regularly
during operation and readjust if necessary.
► Switch off the pole pruner and remove the bat‐
tery.
1
2
► Loosen the nut (1).
► Hold the guide bar nose up and turn the ten‐
sioning screw (2) clockwise until the following
points apply:
– The chain sag 'a' in the center of the guide
bar is 1 - 2 mm.
– The saw chain can still be pulled easily
along the guide bar with two fingers.
► Hold the guide bar nose up and tighten down
the nut (1) firmly.
► If the chain sag 'a' in the center of the guide
bar is not 1 - 2 mm: Readjust the saw chain
tension.
7.4

Filling Up with Saw Chain Oil

The saw chain oil lubricates and cools the rotat‐
ing chain.
► Switch off the pole pruner and remove the bat‐
tery.
► Place the pole pruner on a level surface so
that the oil tank cap faces up.
► Use a damp cloth to clean the oil tank cap and
the area around it.
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0458-191-9821-B