STIHL 020 T
21
• Push the assembly drift, small
diameter first, through the piston
and small end (needle cage) and
line up the piston.
• Attach the snap ring (1) to the
magnet (2) so that the snap ring
gap is on the flat side of the tool's
shank (see illustration).
• Remove the sleeve and slip it onto
the other end of the shank.
Note:
Inner pin must again point
towards flat face of tool's shank.
• Push the large slotted diameter
of the sleeve over the magnet
and snap ring. Position the
sleeve so that the inner pin (1)
points towards the flat face (2)
of tool's shank.
• Fit the piston pin (1) on the
assembly drift (2) and slide it into
the piston (the pin slides home
easily if the piston is hot).
• Thoroughly clean the gasket
seating surface (1).
• Lubricate the needle cage (2) with
oil and fit it in the small end.
4.4.2
Installation
• Heat the piston on an electric
heating plate to approx. 60°C
(140°F) and slip it over the
connecting rod. The arrow (1) the
piston head must point to the right
(looking at flywheel (2).
Note:
Use the installing tool (1) to fit
the snap rings.
• Remove the sleeve (2) from the
tool.
• Stand the installing tool, sleeve
downward, on a flat surface
(wooden board) and press verti-
cally downwards until the sleeve
butts against the tool's shoulder.
