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If the end play is correct then apply Locti-
te to the threads of both hex bolts M5x12
034 and tighten them from hand first.
Then tighten the screws with 8-10 Nm
about (if you have a torque driver). If not
then „tighten, but no too tightened“). Note
that a too high tightened bolt reduces
the total strengthness of the bolt that can
cause a damage.
Attach two hex bolts M3x12 D119 in the
rotorhub D452 using Loctite.
Push the bladegrips D538a on so that the
cross holes in the grips are corresponding
with the holes of the threaded bush 509.
The fitting of the grips is quite narrow. A
light warming up of the grips with a hair-
dryer does help.