Checking The Saw Chain; Checking The Controls - Stihl HTA 66 Instruction Manual

English
► Measure the depth of the guide bar with the scale on a
STIHL filing gauge.
► Install a new guide bar if one of the following points
applies:
– The guide bar is damaged.
– The measured guide bar groove depth is less than
specified minimum depth, @ 19.3.
– The guide bar groove is pinched or splayed.
► If you have any doubts, be sure to consult a STIHL dealer.

10.3 Checking the Saw Chain

► Switch off the pole pruner and remove the battery.
2
► Measure the height of the depth limiters (1) with a STIHL
filing gauge (2). The STIHL filing gauge must match the
pitch of the saw chain.
62
► If a depth gauge (1) projects from the filing gauge (2):
► Make sure the service marks (1 to 4) on the cutters are
► If one of the service marks is not visible on a cutter: Do not
► Use a STIHL filing gauge to check that the filing angle is
► If the filing angle of 30° has not been maintained:
► If you have any doubts, be sure to consult a STIHL dealer.

10.4 Checking the controls

1
Release slide, Ergo lever and trigger
► Remove the battery.
► Try squeezing the trigger switch without activating the
► If the trigger can be pulled: Do not use your pole pruner
► Push the release slide with your thumb in the direction of
► Press and hold Ergo lever.
► Press the trigger.
10 Checking Pole Pruner and Battery
Lower the depth gauge (1) with a file, @ 16.2.
2
4
visible.
use your saw chain and contact your STIHL dealer for
assistance.
30° on all cutters. The STIHL filing gauge must match the
pitch of the saw chain.
Resharpen the saw chain.
release slide.
and contact your STIHL dealer for assistance.
The release slide is faulty.
the saw chain and hold it there.
The release slide can be released.
1
3
0458-191-9621-A