GRAUPNER heim Starlet 50 Mode D'emploi page 61

Starlet 50
Notes:
Power transference between crankshaft and clutch is achieved exclusively by the clamping
pressure of the taper collet on the ground crankshaft nose, and on the tapered socket in the
clutch. To ensure that sufficient pressure is applied, it has proved good practice to start by
installing the clutch alone - without the cooling fan - and tightening it fully; the clutch should be
held firmly using a suitable tool while you do this.
When attaching the clutch bell to the crankshaft it is essential to ensure that the shaft is not
pushed out of position in its bearings!
Once you have fitted the clutch and tightened it correctly, the only way to remove it again is to
use a puller mechanism (Order No. 1045), after removing the crankshaft nut. Note that the
tightness of the crankshaft nut makes no significant contribution to power transmission when the
motor is running; the nut's primary purpose is to secure the cooling fan and, if used, the
hexagon starter cone (optional part, Order No. 4448.103).
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