Sony DSR-2000A, Service Manual

Page: 144 / 234

7-14
DSR-2000A/2000AP
Brake slider assembly
Slide shaft
Brake slider assembly Spring pin
Specification :
0.5
±
0.1mm
Brake slider assembly
Widen a little in the downward direction
Solenoid iron core
Spring pin
Solenoid
Compression spring
Iron core
Brake slider assembly
Brake base assembly
W2.6
P2.6 x 2.8
4. Replacing the brake solenoid
(1) Remove the two screws and remove the
solenoid from the brake base assembly.
n
During this operation, the two washers come
off together with the two screws, and further
the compressed coil spring comes off from
the iron core of the solenoid. Be careful not
to lose them.
(2) Widen slightly the clearance shown in the
brake slider assembly figure by a finger to
remove the iron core of the solenoid.
n
Applying an excessive force may cause
deformation of the brake slider assembly.
(3) Reattach an iron core pin of a new solenoid to
the brake slider assembly following the same
step (2).
(4) After fitting the compressed coil spring
removed in step (1) on the iron core, insert
the iron core in a new solenoid.
(5) Fix temporally the solenoid positioning as
shown in the figure to the brake base assem-
bly with the two screws and two washers.
(6) Ensure that the compressed coil spring is
placed between the upper and lower plates of
the brake slider assembly (within the double
headed arrow) as shown in the figure.
(7) Adjust the solenoid position to satisfy the
specification of the clearance between the
slide shaft and the slotted hole in the brake
base assembly under the condition that the
iron core is fully pulled in, and tighten
securely the two screws.
Tightening Torque : 0.5 N
.
m {5 kgf
.
cm}
(8) Reattach the brake slider assembly to the
brake base assembly with a new stop washer.