5.5 Disassembly and assembly
1
Cables and P.C. board
(1) Remove the cover
of terminal box
on the top of the
fan case.
(2) Disconnect the
cables and leads
coming from the
electric enclosure.
a) 3 motor main leads
(U, V and W).
2 cooling fan
leads (BU and
BV).
of SJ-J type AC spindle motor
Terminal box cover
Fin
case
2 thermal protector leads (OHS1 and OHS2).
d) Cable connected
(3) Remove the ex-
ternal connector
from the con-
nector bracket.
Disengage the
internal con-
nector.
(4) Remove the P.C.
board mounting
pan head screws
to remove the
P.C. board.
(5) To assemble,
perform the
reverse steps.
to external connector of P.C. board.
Card mounting pan head screw
External connector
Internal connector
External connector
bracket
Lead protection
packing
63
