Nikon Super CoolScan 9000ED Repair Manual page 17

Assemble AF motor
・ Return the base (#121) to the correct position.
・ Attach the AF motor (#510) temporarily with 2 screws (#192).
【Adjustment】 AF motor backlash adjustment
1) Attach the AF motor backlash adjustment tool (J61191) to the base (#121) with the tool screw.
2) Loosen 2 screws (#192) and turn the AF motor clockwise. Then unhand and tighten 2 screws (#192).
(The backlash adjustment is made by the weight of the tool (J61191).)
・ After the AF motor is attached, perform wiring work.
J61191
#192×2
#121
- A4 ･
LS-9000
Tool screw
#121
#510
-
VRA51701-R.3607.A