Zundapp 281 - Page 18

Fig. 37
Fig. 38
Fig. 39
Fig. 40
a) Setting Steel Ball Selector on
engines with manual gear change
On engines with manual gear
change, set the steel ball selector
with the setscrew so that the spheri-
cal part sits exactly in the centre of
the selector shaft bore correspond-
ing to the highest gear (3rd or 4th).
Use setting gauge SK-A 232 (3-speed.
/a) to carry out the adjustment, fitt-
ing it into the bearing bush of the
right-hand casing in place of the
selector shaft and securing it with
locking washer SK-A 233 (b).
Now press the inner face of the
selector at the selector lever guide
against the end of the setting
gauge. Turn in threaded pin (c) un-
til all play in stop bracket (d) and
thereby in the selector is reliably
eliminated. Tighten locknut and se-
cure setting with the tab washer.
Slacken nut on gauge and take
gauge off.
On 4speed manual gear
change engines, first fit a
bush of 11.5 mm length, 14 mm o. d.
and 12 mm i. d. (made in your own
workshop), then fit gauge SK-A 232
(figs. 37 and 38).
D Measuring Axial Play of Crankshaft
Permissible play is 0.1 mm. To mea-
sure it you need a gauging bar and
a caliper gauge with depth scale.
Measure from the contact face of
the right-hand casing to the inner
ball bearing race (fig. 39).
Then cagry out the same check on
the left-hand casing and add the
two values obtained (fig. 40).
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