IAI America CT4 - Manual (Page 57)

4. Maintenance Inspection
51
3) Slide in the motor to the main body and temporarily tighten the four screws to hold the motor
(at the circled places and 2 places on the bottom).
Tighten the coupling screw (at the circled places).
4) Tighten the four screws affixing the motor (at the circled places and 2 places on the bottom).
Tool to use: Hex Wrench 4mm-sized
Coupling
Tool to use: Hex Wrench 2.5mm-sized
Tightening Torque : 83N•cm
Tool to use: Hex Wrench 4mm-sized
Tightening Torque : 342N•cm