Brother MFC990CW Service Manual page 267

ASF motor
(5) Unlatch the shaft holder and remove it from the maintenance unit.
(6) Remove the idle gear 16 and the ASF/maintenance drive gear.
(7) Remove the ASF motor from the maintenance unit by removing the two screws.
Assembling Note: When mounting the ASF motor on the maintenance unit, first fit the
small hole of the ASF motor on the small boss inside the ASF motor holder, then secure the
motor with the two screws.
(8) Disconnect the ASF motor/encoder harness from the ASF motor.
ASF/maintenance
drive gear
ASF motor/encoder
harness
Shaft holder
Screw, pan
(s/p washer)
M3x5
6-83
Latch
Idle gear 16
Maintenance unit
ASF motor
(6_77)
Confidential