Sony DSR-300 Service Manual page 199

5. Rotate the No. 1 gear in the counterclockwise
direction, and remove the coaster (T) assembly
and GL (T) assembly from the rail (mechanism
chassis).
Attachment
6. Attach the coaster (T) assembly to the groove of
rail (T), and then attach the GL (T) assembly.
DSR-300/P(E)/V1
No. 1 gear
Coaster (T) assembly
GL (T) assembly
Rail
(mechanism chassis)
GL (T) assembly
Attaching shaft
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