Sony BVW-55 Maintenance Manual page 291

(3) Turn the S gear (S) of the threading link
assembly aginst spring tension clockwise to
coincide with three holes, the hole on the S
rail shown in the figure, the hole on the S
threading gear and the hole on the gear base.
Then pass the parallel pin (d = 2.0 mm)
through these three holes.
(4) While keeping the state of steps (1) to (3),
install the threading link assembly so that the
boss and longitudinal hole of the link assem-
bly are put into the hole and pin on the
mechanical deck.
(5) Fix the link assembly with the nine screws.
n
Be careful not to hit the stationary head and
other parts with a screwdriver during installa-
tion.
(6) Pull out three parallel pins passed in steps (1)
to (3).
BVW-55 P2
Hole
S rail S threading gear
S gear (S)
Parallel pin (d = 2.0 mm)
Treading link assembly
Boss
Hole
4-5. S/T Slider Replacement
Hole Hole
Gear base
Threading link assembly
Longitudinal hole
Pin
4-19