Sony HVR-A1J Service Manual page 249

3-19. Pinch Arm Ass'y
1. Removal procedure
1) Move the LS chassis in the direction of arrow A so that the
distance between the end of the LS chassis and end of the
mechanism chassis is in the range of 4.5 mm to 5.5 mm.
2) Rotate the pinch arm ass'y 2 in the direction of arrow B, and
remove the torsion spring (pinch return) C.
3) Remove the pinch arm ass'y 3 , and remove the torsion spring
(pinch return) 4.
Points to be noted
End of the mechanism chassis
End of the LS chassis
A
4.5mm to 5.5mm
2 Pinch arm ass'y
B
Apply grease
Points to be noted
Apply the grease when installing
Amount of grease: A ball of grease
of 1.0 mm diameter (Re-application
of grease to the already-greased-
point is not necessary)
D
HVR-A1J/A1U/A1N/A1E/A1P/A1C
1 LS chassis block
Torsion spring
(pinch return)
2. Attachment procedure
1) Apply grease on the pinch arm shaft retainer hole and the
portion D of the LS chassis.
Amount of grease: A ball of grease of 1.0 mm diameter.
2) Move the LS chassis in the direction of arrow A so that the
distance between the end of the LS chassis and end of the
mechanism chassis is in the range of 4.5 mm to 5.5 mm.
3) Insert the portion E of the torsion spring (pinch return) 4
into the hole of the LS chassis, and attach it to the pinch arm
shaft retainer hole.
4) Install the pinch arm ass'y 3 in the pinch arm shaft retainer
hole.
5) Hook the torsion spring (pinch return) 4 on the pinch arm
ass'y 3 as shown in F.
Torsion spring
(pinch return) - C
F
Pinch arm shaft retainer hole
6-90
Pinch arm ass'y
Points to be noted
Do not press the head of the roller
when installing the pinch arm.
Pinch arm ass'y
Be careful not to damage or deform
the roller and not to let oil and the
likes adhere to the roller.
3 Pinch arm ass'y
Pinch arm shaft
4 Torsion spring
(pinch return)
E
Hole of the
LS chassis