Cutting Attachment; Mounting And Removing The Guide Bar And Chain - Stihl HTA 50.0 Instruction Manual

14 Assembling the Pole Pruner
► Line up the coupling sleeve (1) and drive tube (2) so that
the groove (3) and lug (4) face upwards.
► Push the drive tube into the coupling sleeve.
► Turn the wing screw (5) clockwise and tighten it down
firmly.
14.1.2 Removing the Drive Tube
► Turn the wing screw counter-clockwise.
► Pull the drive tube out of the coupling sleeve.

14.2 Cutting Attachment

WARNING
If non-matching components are used, the cutting
attachment will be damaged beyond repair after a short
period of operation, and the chain could de-rail, resulting in
serious or fatal personal injury.
A cutting attachment consists of the chain, guide bar and
chain sprocket.
1
a
t = a 2
– The pitch (t) of the chain (1), must match the pitch of the
chain sprocket.
– The drive link gauge (2) of the chain must match the
groove width of the guide bar (3).
0458-813-8221-A
14.3 Mounting and Removing the Guide Bar and
Chain
14.3.1 Mounting the Guide Bar and Chain
WARNING
Make sure the battery is removed before starting assembly.
Never operate your pole pruner without a properly mounted
guide bar and chain, @ 6.5. Use only guide bar and chain
combinations expressly recommended or approved by
STIHL, @ 6.4.
WARNING
The chain has many sharp cutters. If they contact your flesh,
they will cut you, even if the chain is not moving, @ 6.4.
Always wear heavy-duty work gloves when mounting or
otherwise handling the chain, @ 6.3.
To mount the guide bar and chain:
► Switch off the pole pruner, @ 16.2.
► Remove the battery, @ 15.2.
2
3
► Turn the nut (1) counterclockwise until the chain sprocket
cover (2) can be removed.
► Remove the chain sprocket cover.
► Turn the side chain tensioner (3) counter-clockwise until
the tensioning gear (4) sits flush against the housing.
4
2
1
English
3
27