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Reassembly
Place the relay gear drive lever in the unloading
state.
Place the relay shifter so that it is in contact with
the reverse guide spring hole in the mechanism
chassis. Release the slow brake lever with a
finger to bring it away from the capstan (in the
direction of arrow). Then place the master cam
so that the D cut-off part of the master cam faces
the direction of arrow.
follower so that it fits in the master cam' s
c i r c u m f e r e n t i a l c a m g r o o v e ( m a r k e d w i t h
arrow), attach the E ring, then mount the half-
loading recipro lever.
4. Turn the master cam somewhat clockwise until
the pinch roller lever' s cam follower goes into
the master cam' s groove (marked with arrow).
Mount the pinch roller lever and then attach the
5. Rotate the master cam by hand to make sure all
loading recipro lever, pinch roller lever, and relay
shifter lever) are in the cam grooves in place.
6. Mount the loading block. (See page 29.)
Notes :
1. Be careful not to scratch the teeth and grooves
of the master cam.
2. After installation of the master cam, be sure to
rotate the master cam by hand before installing
the loading block. If the levers are in wrong
position, the master cam and the levers may get
damaged when the motor stares.
3. Apply specified grease to the master cam' s
grooves and teeth.
Note :
The gap between the lower drum and the upper
drum is very accurate, in the order of microns, and
care should be paid to their replacement. Even a
slight amount of foreign material will affect the
accuracy of their reassembly.
Replacement (Follow the order of the indicated
l
numbers.)
Turn and tighten the
screws equally.
Notes :
1. Avoid touching the drum surface with bare
hands.
2. Pull out the upper drum with care so that it may
not be tilted, and replace it with the upper drum
replacing jig using care not to damage the disk
circumference.
3. Do not hit the screws when tightening them.
31
Unsolder the leads.
Remove the upper drum by
pulling it with the upper
drum replacing jig.
Figure l-75.
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