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Replacement
1.
If the brake coil assembly was removed,
insert the brake coil
m
into the brake
housing and secure it with the three brake
adjustment locking screws
Ii .
2.
Loosen the brake adjustment locking screws
0
. Turn the brake adjusting studs
Ii
counterclockwise until the brake coil
is against the brake housing
Ii) .
3.
Check that the brake plate
B
that is
pinned to the motor shaft is not loose.
4.
Check the brake pad
m
for uneven or
excessive wear; replace it, if needed.
5.
Install the brake pad "and spring onto the
motor shaft.
6.
7.
Install the brake assembly onto the back of
the motor. Make sure that the three slots
13
in the
brak~ad
m
are aligned with
the three studs
II
on the brake coil.
Note:
The hazard label should be up and
tq the right, and the cables from the motor
and brake should run together at the bot-
tom left when viewed from the back of
the motor.
Install the three screws
D
that hold the
brake housing to the motor. Before tighten-
ing the screws, the motor shaft must be
located centrally in the brake housing.
8.
9.
10.
11.
12.
Tighten the three screws that hold the
brake housing to the motor.
Strap the motor and brake cables
II
with replacement straps or insulating tape.
Install the cable straps
iii
(if present) that
hold the motor, brake, and ac cables.
Install the brake wires from DETB1
rl
terminal 5 (black wire) and terminal 6
(yellow wire).
Install the motor antistatic brush
m.
13.
Do the brake adjustment (next page),
beginning with step 7.
m
&1
Disk Drive
2-17
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