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

7 Assembling the Pole Pruner
7.2.2

Removing the Guide Bar and Saw Chain

► Switch off the pole pruner and remove the battery.
► 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 cutting 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 battery.
1
2
► Loosen the nut (1).
► Hold the guide bar nose up and turn the tensioning 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.
0458-191-9821-A
7.4

Filling Up with Saw Chain Oil

The saw chain oil lubricates and cools the rotating chain.
► Switch off the pole pruner and remove the battery.
► 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.
► Swing the grip on the oil tank cap to the vertical position.
► Turn the oil tank cap counterclockwise as far as it will go.
► Remove the oil tank cap.
► Fill up with saw chain oil, taking care not to spill any oil and
not to overfill the tank.
► If the grip on the oil tank cap has dropped into the closed
a
position: Raise the grip until it is vertical.
► Place the oil tank cap in the filler opening so that mark (1)
lines up with mark (2).
1
1
3
2
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