40 MS 461, MS 461-R
: Install the new piston rings in the
grooves so that the radii face
upward (arrows).
– Carefully fit the piston rings over
the piston
– they might otherwise break.
: Install the piston rings so that the
radii at the ring gap meet at the
fixing pins in the piston grooves.
Check correct installed position of
the piston rings.
– Install the piston, b 6.7
– Reassemble all other parts in the
reverse sequence.
3443RA140 TG
6.9 Decompression Valve
– Remove the shroud, b 6.4
: Unscrew the decompression
valve (1).
: Check the sealing cone (arrow)
on the decompression valve for
damage.
– If the sealing cone does not close
completely or shows signs of
damage, install a new
decompression valve.
– Fit the decompression valve and
screw it home by hand.
– Tighten down the decompression
valve firmly.
– Reassemble all other parts in the
reverse sequence.
1
3443RA142 TG
5902RA164 TG
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