Assembling The Main Rotor Head - GRAUPNER heim Starlet 50 Mode D'emploi

Starlet 50

3. Assembling the main rotor head

(bag UM-10)
The main rotor head is assembled as shown in the illustrations. All ballraces must be greased.
3.1 Preparing the blade holders
The first step is to glue the brass sleeves from 4618.32 to the M3 x 16 screws using thread-lock
fluid. Allow the fluid to cure. Check that the mixer levers 4618.32 swivel freely on the brass
sleeves; if not, remove any rough edges from the mixer lever bores, and lubricate with silicone
oil. The mixer levers are screwed in place using the M3 nuts.
Press the radial bearings 4607.31 and the shell of the combination bearings 1254.13 into the
blade holders 1252.11 as shown in the drawing. Push them in as far as they will go.
Now check that the prepared blade holders, complete with the bearings 4607.31, can be slid
easily onto the blade pivot shaft 4607.29. If necessary, rub down the blade pivot shaft with fine
abrasive paper (600-grit or finer) until the bearings are a sliding fit on the shaft.
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