Operation Manual

49MS 241 C
Press the assembly tool down in the
sleeve until the magnet is at the end
of the guide slits.
: Remove sleeve and fit it over the
opposite shaft end of the
assembly tool, with the internal
pin pointing towards the flat
surface.
The snap ring (1) must be fitted so
that the gap in the ring (arrow)
points upwards in axial direction of
the piston.
5904RA091 TG
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1
: Position the installing tool
5910 890 2210 with the taper
sleeve on the piston boss, 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.
– Examine the piston rings and
replace if necessary, b 6.8
– Install the cylinder, b 6.5
– Reassemble remaining parts in
reverse order
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6.8 Piston rings
– Remove piston, b 6.7
– Remove piston rings from piston
: Use a piece of old piston ring to
scrape the grooves (arrows)
clean
: Align the new piston rings so that
the radiuses at the ends of the
ring (arrows) face upwards
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