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Page 12
Upper figure:
The page shows the schematic setup of the rotor head pre-installed ex works. Check assembly and test the screws for tight
fit. Use threadlocker varnish for every screw connection.
Lower figure:
Push the tail boom retensioning onto the tail boom according to the figure and install the elevator unit. Push the tail rotor
drive shaft into the tail boom and place the front bevel gear onto the drive shaft.
Page 13
Upper figure:
The page shows the schematic setup of the tail rotor angular drive pre-installed ex works. Check assembly and test the
screws for tight fit. Use threadlocker varnish for every screw connection.
Push the tail rotor angular drive onto the tail boom and align it again. For latching, the screw M3x6 has to interlock with the
intended bore in the tail boom. Then the attachment screw M3x12 can be tightened.
Lower figure:
The figure shows disassembly of the vertical tail. Use threadlocker varnish for every screw connection.
Page 14
Upper figure:
The drawing shows the schematic setup of the tail rotor pre-assembled ex works with blade holders, ball bearings and blade
baring shaft. Check assembly and test the screws for tight fit.
Lower figure:
The lower figure shows the assembly of the tail rotor. The pre-assembled tail rotor is pushed onto the oiled tail rotor shaft
with the sliding sleeve according to the sketch and attached with two grub screws M3x3. Observe that the two grub screws
catch in the respective outer indentations of the tail rotor shaft.
Verify the function of the tail rotor linkage after completion of the tail rotor unit. All components must work smoothly but
must not have any play in their bearings. Use threadlocker varnish for every screw connection.
Page 15
Upper figure:
Install the tail rotor blades according to the figure. The screws must only be tightened enough for the rotor blades to still be
able to align by centrifugal force.
Lower figure:
Push the tail boom back into the mechanics carefully. Observe that the two pinions for the tail rotor drive interlock cleanly.
The sprockets must not fit too tightly but have a distance of 0.1 mm (see small drawing).
When the tail boom fits perfectly and the rudder unit is aligned vertically, tighten the two chassis screws M3x18 (also see
page 7) and connect the tail rotor linkage rods to the tail rotor servo.
