4. Maintenance and Inspection
65
8) Attach the motor unit for replacement and tighten the four screws of M3 (for BA4/BA4U), M4 (for
BA6/BA6U) or M5 (BA7/BA7U) with using a hex wrench.
Type Tightening
Torque
BA4/BA4U
83N•cm (8.47kgf•cm)
BA6/BA6U
176N•cm (18.0kgf•cm)
BA7/BA7U
342N•cm (34.9kgf•cm)
Motor unit for
Replacement