Sony HDV HVR-1500 Service Manual page 126

3. Replacing the brake solenoid
(1) Remove the two precision 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 precision 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 precision 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.
6-10
Solenoid
Compression spring
Brake base assembly
W2.6
Precision screws
P2.6 x 2.8
Brake slider assembly
Spring pin
Solenoid iron core
Widen a little in the downward direction
Spring pin
Slide shaft
Iron core
Brake slider assembly
Brake slider assembly
Brake slider assembly
HVR-1500