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l11L-________________________________________________________________
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b
Inspection
•
Check wear of teeth and grooves on the shaft
mounted gears. If worn or nicked, replace the dama-
ged part or parts.
•
Ensure the splines and the teeth of the gear ma-
chined on main shaft «U .. are in good state. If worn
out or damaged, replace the main shaft (fig. 112).
•
Check splines on the layshaft. If scored or damag-
ed, replace the shaft.
•
Make sure the circlips have not lost their elasti-
city otherwise replace them.
•
Check the tab washers are still in good state or
else replace them.
•
Check condition of the low gear bush on layshaft
If excessively worn replace it, bearing in mind these
data:
64
-
lID of the bush pressed into the gear: 18.016";-
..;- 18.034
mm
(.7092
-7-
.7099");
-
Diameter of shaft where the low speed gear ope-
rates: 17.991 -;. 18.000 mm (.708 -;. .7086");
-
Assembly play of layshaft-1st gear bush: 0.016-;.
"' .043 mm (.00062 -;. .0017").
•
Check wear of the desmodromic shaH splines
contacting the pawl and the selector fork pins. If
wear is excessive, change the shaft Check also wear
where the selector stop pawl operates. If excessively
worn, replace the drum.
eRe-assembly
Reverse the dismantling sequence and see figg. 110-
111-112-113.
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