GRAPHTEC FC 4500 Series Service Manual page 51

(6) Disconnect the Y Motor Cables from the Y Relay Board.
(7) Loosen the two M4L4 set screws holding the Flywheel, and then detach the Flywheel from the Y
Motor.
(8) Remove the four M3L8 TP head screws holding the Y Motor, and then detach the Y Motor.
(9) Remove the three Stud BSB-320 from the Y Motor.
Stud BSB-320
FC4500-UM-251-9370
Y Motor Cable
M4L4 set screw
M3L8 TP head screw
Y Relay Board
Flywheel
45
6 REPLACEMENT PROCEDURES