Stihl FS 94 Instruction Manual page 57

Installing
1
3
– Clamp square shank of installing
tool in the vise.
: Push sleeve (1) onto 24 mm or
26 mm shaft of installing tool (2)
4126 893 4900 as far as stop and
line it up so that the screw (3) is
at the bottom.
: Tighten down the screw (3) firmly
4
1 3
: Position the rubber element (1)
so that its collar (arrow) faces the
vise and guide ribs on the
sleeve (2) are in line with the
recesses on the inside of the
rubber element (1).
: Push the rubber element (1) onto
the sleeve (2) as far as stop – the
lugs (3) must engage the
openings (4).
56
2
: Coat outside of rubber
element (4) with STIHL press
fluid – do not use oil or any other
lubricant, b 12
: Position the fan housing (1) so
that the lower bore (arrow) is in
line with the clamp screw (2) on
the sleeve (3)
– the guide ribs in the fan
housing (1) seat must line up with
the recesses in the rubber
element (4).
: Push the fan housing (1) onto the
2
rubber element (4) until the collar
is behind the lateral slots in the
fan housing (1).
1
2
: Fit the retaining ring (1) over the
sleeve (2) so that the gap is on
the same side as the clamp
screw (3).
: Push the retaining ring (1) into its
seat until it snaps into position in
the lateral slots (arrows).
1 4 3
2
3
3 4
1 2
: Insert the screw (1) – do not
tighten down yet.
: Loosen the screw (2) and pull off
the fan housing (3) complete with
rubber element and sleeve (4).
– Reassemble all other parts in the
reverse sequence.
Series 4149 Powerhead