Zundapp 281 - Page 25

h) Fitting Selector Shaft to Bearing on
Left Casing
Fit 1 ring (made in your shop) of
the following dimensions:
Height 6mm
Outer dia. 36 mm
Inner dia. 31 mm
on to selector shaft, flush against
the casing. Fit chain gear and tigh-
ten gear nut to shift shaft upwards
bringing its collar all the way
against the inner race of the ball
bearing.
Take off nut, chain gear and ring
again (fig. 60).
On engines of type 267,
use spacer ring SK-A 138 for driver
in place of the ring just mentioned.
Having fitted the ring, fit and run
down chain gear nut only.
Check that all shafts move smoothly. `
Mounting Sealing Rings
Fit engine into service fixture SK-A
126 and clamp the whole assembly
into the vice.
Fit sealing ring to left casing; fit
sealing ring for crankshaft with
punch MV 6-961.
Fit sealing ring for selector shaft
with assembly socket sleeve SK-A
217 and drive it home by tapping
with punch MV 6-734.
On engines of type 267 (manual
and pedal gear change),“use socket
sleeve MV 6-960 together with
punch MV 6-961.
Fit» sealing ring for kickstarter
spindle with hollow punch MV 6-734,
noting that chamfered side of ring
must face casing (fig. 61).
25
Fig. 60
Fig. 61