Pinch Arm Assembly; Capstan Motor - Sony DVCAM DSR-250 Service Manual

2-3-9.

PINCH ARM ASSEMBLY

Disassembly/Assembly
For the disassembling and assembling procedures of the tape retainer
and compression coil spring (tape retainer), refer to page 5-51.
Roller
B
Claw
Push roller A into the
groove as shown in the
figure. Insert roller B into
the claw. To remove the
pinch arm assembly, pull
out the pinch arm upward
while pushing the claw.
2-3-11. PENDULUM RETAINER AND PENDULUM ARM ASSEMBLY
Disassembly: Remove them in order of 1,2,3
(To attach them, perform the disassembly steps in reverse order.)
Tightening torque of pendulum retainer
0.3432 ± 0.0196 N • m (3.5 ± 0.2 kg • cm)
1
Screw
3
Pendulum arm
assembly
Shaft
A
Shaft
Shaft
B
Positioning boss
Roller
A
Pinch arm assembly
Roller
Claw
A
Roller
B
2
Pendulum retainer
(Remove in the direction
of the arrow.)
Shaft
B

2-3-10. CAPSTAN MOTOR

Disassembly/Assembly
(After assembling, adjust the tape path from page 5-52.)
Capstan motor
Notes during assembly
When assembling or disassembling the pendulum arm assembly,
be careful of the following.
[Rear side of pendulum retainer]
Hole
E
Shaft
Insert tip of the pendulum
D
arm into hole of the pendulum
E
retainer and insert the pendulum
into shaft .
C
Attach the pendulum retainer to shaft B . Be careful of the positions
of the pendulum stopper at the rear of the chassis and shaft A of the
pendulum arm.
Shafts
B
Can be removed.
Shafts
B
Cannot be removed.
5-42
Be careful not to touch the
motor shaft (
Screw
Tightening torque of capstan motor
0.1961 ± 0.0196 N • m (2.0 ± 0.2 kg • cm)
D
F
Shaft
C
Slide the pendulum arm in
the direction of arrow
attach it to the chassis.
Pendulum stopper
Shaft of the pendulum
A
must be in this position.
part).
C
and
F