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Push the tailrotor shaft D245 from the right
side into the tailrotor housing as far that
the distance washer D646 can be placed
on the shaft end with the flanged side to
the ball bearing. Push now the belt wheel
into the tailrotor housing. Please note that
each spacer shaft is made individually fit-
ting to the tailrotor housing to get zero end
play. So do not loose it.
Push the tailrotor shaft thru the tailrotor
housing. Note that the flat spot with the
bigger distance to the end must be placed
on the left side (where the grub screws of
the belt wheel are).
Add a grub screw M4x5 035 using Loctite
in the belt wheel thread that is correspon-
ding with the flat spot of the tailrotor shaft.
Check that the left end of the shaft is cor-
responding with the outside end of the ball
bearing. After tightening this screw add
another screw M4x5 035 in the belt wheel
using Loctite and tighten it.
Now tighten the tailbelt. Push the tail-
boom out of the clamps as long as the belt
tighening lever will get about the position
shown in then picture. Then adjust the
tailrotor shaft rectangular to the main-
rotor shaft and tighten the two long hex
bolts M3x35 D338 in the tailboom holder
clamps using Loctite. Check that the 3mm
thick spacers bushes D620a are under the
bolt heads. After that tighten the two re-
maining lower right hex bolts M3x6 D196
of the tailboom clamps using also Loctite.
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