Panasonic NV-SJ4140PN Service Manual page 37

2. Installation of Holder Unit
A. Turn the Wiper Arm Unit so that the grooves on each end are
aligned with the each groove on Side Plate L and R.
B. Insert Holder Unit boss (A) and (B) into the grooves as shown
in Fig. K1-1.
C. Finally, in the EJECT Position, confirm that the protrudence on
the Wiper Arm Unit is aligned with the indentation on the Drive
Rack Unit.
3. Make sure to hook the spring to the Drive Rack Arm of
Mechanism chassis.
Fig. K1-3
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