GRAUPNER heim Starlet 50 Mode D'emploi page 57

Starlet 50
Fit the top bearing support on the shaft loosely for the moment (note the correct orientation; the
opening in this bearing support should face up), then fit the top bearing 4450.31, followed by a
shim washer. Press the freewheel sleeve 4618.107 into the gear 4618.105, and fit this assembly
on the shaft. Line up the cross-holes in the shaft and the freewheel sleeve and carefully press
the roll-pin 4618.65 into the holes, but only to the point where it projects a little way into the
shaft; it must be possible to pull it out again at this stage.
Now press the top bearing 4450.31 into the bearing support 4448.11 and push this assembly up
against the shim washer under the freewheel sleeve. Take the layshaft assembly which you
have assembled to this stage, and place it between the mechanics side frames 4450.9 and
4450.10, so that you can check that the top bearing rests against the freewheel sleeve above
the shim washer when the parts are assembled. You may find that there is a gap, which has to
be corrected by fitting additional shim washers. Take care not to fit too many shim washers, as
this would place the bearings under stress.
Once you are confident that the spacing is set correctly, glue the shaft to the bearing in the
usual way using bearing retainer fluid, Order No. 951, but only after you have pressed the roll-
pin into the freewheel sleeve fully and permanently. Fit this assembly between the mechanics
side frames and tighten the screws fully before the bearing retainer fluid has cured, so that you
can check that the shaft spins freely in its bearings. If it is slightly stiff, tap on the ends of the
shaft to seat the bearings and eliminate the problem.
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