IAI America SSPA - Manual (Page 86)

14. Motor Replacement Procedures
78
„ Standard home specification
[When the slider jigs, etc., can be removed]
Remove the screw cover.
[If a slider jig, etc. cannot be removed]
(Note) Apply this method for SSPA since the spacer cannot be put.
Set this part based on Attachment 2 on Page 78.
The use of a block gauge is recommended also in this case.
Spacer
See Attachment 1 on Page 77 for the distance.