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Add two lens screws M3x6 D199 using
Loctite. Before tightening push both blade-
grips in outside direction to eliminate play
between screws and crossholes of the
bladegrips.
Add on the blade grip arms a hex bolt
M3x8 D197 and a hex bolt M3x14 D198
and apply Loctite on the threads.
Attach the blade grip arms in the small
grooves of the bladegrips. Check if both
arms are flat on the grooves. If this is the
case tighten the screws of both blade grip
arms.
Attach a ball joint 385 on the swas driuver
arm bush 593 with a screw M2.5x12 469.