Installation: Joint #3 Reduction Gear Unit - Epson C Series Maintenance Manual

C4 Maintenance 7. Joint #3

Installation: Joint #3 Reduction gear unit

NOTE
When tightening hexagon socket head cap bolts, refer to the 2.4 Tightening Hexagon Socket

Head Cap Bolts.
1. Unpack the new reduction gear unit package and check if it
contains the parts on the right.
Tooth grooves of the circular spline and the flexspline, and the
bearing of the wave generator are pre-greased. Wipe grease if
it is attached to the fitting parts.
■ Do not adjust the bolts securing the flexspline and the cross roller bearing. If the
bolts are adjusted, it requires centering of the parts by the reduction gear unit
manufacturer.
CAUTION
2. Set the O-rings to the grooves on the both faces of the circular
spline.
Make sure to fit the rings completely.
3. Set the flexspline with the convex surface facing down.
4. Match the screw holes on the cross roller bearing's inner ring
and the drilled holes on the circular spline.
98
Concave surface
Convex surface
Flexspline
＋Cross roller bearing unit
O-ring
Circular spline
Wave generator
Concave surface
Convex surface
C Series Maintenance Manual Rev.2
Groove
Groove