Sharp FDD-412A - Page 66

FDD412A/B
(3)
Head load
solenoid
Assembling
(a)
(b)
Holding the bail by hand, insert the solenoid gently.
Tighten the solenoid set screws. At this time, check that
the solenoid plate holes align with positioning dowels.
Instail wiring according to 4.2.3 (wire routing shown in
Fig. 4.5).
Close the plate, install the PWB, and mount the top cover.
Positioning dowel
ee o< Plate
Bail
Head load
solenoid
Fig. 4.8 Head Load Solenoid
4.2.7 Head Load Bail Assembly
(1)
(2)
(3)
(4)
Tools and measuring instruments to be used:
#2 Phillips screwdriver
Sheet of clean paper (for prevention of damage to head)
Disassembling
(a) Remove the top cover according to 4.2.1.
(b) Open the plate according to 4.2.2.
(c) Put a sheet of clean paper between head sliders to keep the
head from contact. ;
(d) Remove a bail set screw (M4 x1), and pull out the bail assembly
in the arrowed direction (Fig. 4.9). At this time, hold
portion B of the head swing arm by hand to keep the head
from any impact.
Assembly
(a) Hold the head swing arm at portion B by hand to protect the
head from impact. In this manner, insert the bail assembly.
Use care to engage the head load solenoid axis snugly into
the hole at portion A.
(b) Secure the bail assembly with the bail set screw.
(c) Close the plate and mount the top cover.
Adjustment
(a)
After replacement, perform adjustment according to 4.3.3,
"Bail Stopper Elevation Adjustment".
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