Nikon ED 17-55mm f/2.8G IF Repair Manual page 31

HOOD-FIX TUBE
SWM
#61
・Attach the distance scale plate to #61 temporarily with 2
screws (#62). (ref. Fig.1)
・Turn the SWM in the direction indicated by the arrow, and
adjust so that the distance between the protrusion of the
magnetic tape unit and the stopper rubber (#195) becomes
2-mm. (ref. Fig.2) (To leave 2-mm space, use a 2-mm
diameter drill.)
・Adjust the position of the distance scale plate so that the
distance scale index and "∞" mark are aligned, then fix them
with 2 screws (#62).
Adhesive:Lock end B
#166×6
Hood-fix tube
Adhesive:Screw lock
#62×2
Distance scale plate
Distance scale index
Fig.1
- L29・AF-S DX17-55/2.8G -
INC
JAA78851-R.3617.A
Magnetic tape unit
Protrusion
#195
2mm
Fig.2