Stihl TS 420 Manual page 50

1
2
: Push the slotted diameter of the
sleeve over the magnet (2) and
snap ring.
The inner pin (1) must point towards
the flat face of the tool's shank.
: Press the assembly tool down in
the sleeve until the magnet is at
the end of the guide slits.
Stand the tool on a suitable surface.
TS 410, TS 420
: Remove the sleeve and push it
over the opposite end of the
installing tool's shank. The inner
pin (arrow) must point towards
the flat face.
Align the installing tool so that the
gap in the snap ring faces
downwards.
: Position the installing tool
5910 890 2210 on the piston
boss with the taper sleeve, hold
the piston steady and press the
tool shank home until the snap
ring slips into the groove.
The tool must be precisely aligned
in axial direction of the piston pin.
1
The snap ring (1) must be fitted in
such a way that the gap (arrow) in
the snap ring faces to the side or
downwards.
– Examine the piston rings, replace
if necessary, b 7.8.
– Install the cylinder, b 7.5.
– Reassemble remaining parts in
reverse order.
– Tightening torques, b 3.5.
49