pg. 157
2) Rotate the gripper arm assembly to move it to the position[a]. Then, remove the gripper arm assembly.
[Caution] Before removing the gripper arm assembly, be careful not to extend the tension spring
(FU8-2166)[4]. Be sure not to lose the tension spring since it is to be used again.
3) Remove the two screws[3] loosened in step 2).