Replacing The Collet Assembly - NEC FD1165 Maintenance Manual

b. Insert a dummy flexible disk into the disk drive and
gently close the door handle so that the collet fits
into the spindle.
c. Tighten the fours screws.
d. Replace the head unload spr ing. The clearance be-
tween the arm on the head load cam and the head un-
load spring should be 0 to .008 inches (0 to 0.2 rom)
(see Figure 4-2).
SHAFT
~
SPRING PLATE
, / /SPINDLE ASSEMBLY
COLLET
o
TO .008 in.
(0
TO 0.2 mm)
SPINDLE
ASSEMBLY
SPRING
PLATE
/
HEAD UNLOAD SPRING
HEAD UN LOAD CAM
Figure 4-2 Replacing the Collet Assembly
4-4