Assembling The Saw - Stihl MS 651 Instruction Manual

6 Assembling the Saw

► Check the chain brake,
► Refuel the saw,
► Check the controls,
► Check chain lubrication,
► If you cannot carry out these steps: Do not use
your chainsaw and contact your STIHL servic‐
ing dealer for assistance.
6 Assembling the Saw
6.1 Mounting and Removing the
Bar and Chain
6.1.1 Mounting the Bar and Chain
The bar and chain combinations that can be
used with the chain sprocket are listed in the
specifications, 20.1.
► Shut off the engine and engage the chain
brake.
2
1
► Rotate the nuts (1) counterclockwise until the
chain sprocket cover (2) can be removed.
► Remove the chain sprocket cover (2).
► Turn the tensioning screw (3) counterclock‐
wise until the tensioner slide (4) butts against
the left end of the housing.
► Fit the chain in the bar groove so that the
arrows on the tie straps on the top of the bar
point in the direction of rotation.
0458-784-0121-C
10.4.
8.2.
10.5.
10.6.
3
4
5
7
► Fit the guide bar and chain on the saw and
check the following points:
– Chain drive links are seated in teeth of
chain sprocket (7).
– Collar studs (5) are located in slot in tail of
guide bar (6).
– Peg of tensioner slide (4) engages hole (8)
in guide bar (6).
The guide bar (6) may be either way round. The
logo on the guide bar (6) may also be upside
down.
► Disengage the chain brake.
► Turn the tensioning screw (3) clockwise until
the chain fits snugly against the bar. Make
sure the drive link tangs engage the bar
groove.
The guide bar (6) and chain are seated
against the saw.
► Fit the sprocket cover (2) so that it is flush with
the saw.
► Fit and tighten down the nuts (1) firmly.
6.1.2 Removing the Bar and Chain
► Shut off the engine and engage the chain
brake.
► Rotate the nuts counterclockwise until the
chain sprocket cover can be removed.
► Remove the sprocket cover.
► Turn the tensioning screw counterclockwise as
far as stop.
The chain is now slack.
► Remove the bar and chain.
6.2 Tensioning the Saw Chain
The saw chain expands or contracts during cut‐
ting work. Chain tension changes as a result.
English
5
6
8
3
6
11