Sony GY-2120WD Maintenance Manual page 134

3-5. Threading Ring Block
3. Adjust the Pinch Arm Assembly
Vertical Play
Move the pinch arm assembly in the vertical
direction.
At this time, confirm that the vertical play
satisfies the specification.
If the specification is not satisfied, perform the
adjustment below.
1 Remove the stop washer.
2 Install or remove the poly-slider washer at the
upper of the pinch arm.
3 Fix the pinch arm assembly by the stop
washer, confirm again that the specification is
met.
4. Cleaning
Clean the pinch roller surface with a cleaning
cloth moistened with cleaning fluid.
3-54
Pinch arm assembly
Vertical play
Spec :
0.05 mm to 0.2 mm
. Poly-slider washer for adjustment
Diameter Thickness
0.13 mm 3-701-439-01
3.0 mm
0.25 mm 3-701-439-11
Adjust the Pinch Arm Assembly Vertical Play
Parts No.
GY-2120WD/WS