Carriage Assembly Removal And Replacement - NEC FD1165 Maintenance Manual

d. Open the door of the disk drive, insert a flexible
disk, and close the door.
e. Check on the stepping motor
that the spring plate does not contact the jacket
of the flexible disk.
f. If the specifications in Step c and Step e cannot
be met, replace the collet assembly.
After checking
check the timing relationship between disk ejection and head
unloading as follows.
a. Move the carriage
flexible disk, and close the door.
b. Rotate the head load cam to load the heads.
c. Open the door, making sure
before the flexible disk "pops up."
d. Make sure that the flexible
the heads during ejection.
4.4.3

Carriage Assembly Removal and Replacement

Use the following procedure to remove the carriage assembly.
a. Remove the PCB.
b. Trace the wiring to the carriage assembly and free
the wiring from the plastic clips that secure the
wiring to the base frame.
c. Remove the wiring,
the carriage assembly.
d. Remove the screws that secure the metal clips to the
base frame and remove the clips (see Figure 4-5).
e. Remove
assembly to the base frame,
assembly from the base frame, then remove it.
the head unload
to
through the base frame,
the two screws
4-6
side of the disk drive
spring and
the outer track,
that the heads unload
disk does not contact
that secure
separate the carriage
spring plate,
insert a
toward
the carriage