IAI America RCP2CR-SS8C - Manual (Page 101)

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9. Maintenance and Inspection
5) Install a new motor unit and temporarily tighten it with the tension adjusting bolts (hexagon socket-head screws:
M4 × 20, 4 pcs.).
In this condition, loop the reduction belt over the pulleys.
7) Install the pulley cover.
Tighten the thin-head screws (M4 × 6, 4 pcs.) using an Allen wrench of 2 mm across flats.
6) Pass a looped strong string (or long tie-band) around the motor bracket and pull it with a tension gauge to the
specified tension. In this condition, uniformly tighten the adjusting bolts.
Tension: SS7R 7.3 kgf, SS8R/HS8R 11.6 kgf
Adjusting bolt tightening torque:
323 N·cm (33 kgf·cm)
Tightening torque: 204 N·cm (20.8 kgf·cm)