IBM 77 Reference Manual Download Page 1 | Manualshive

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Summary of Contents for 77

Page 1: ...es FeedKnifeGuides Card Guides F e e d R o l l s rn Brushes rn rn ChuteBlades Pocket Selection Magnets I Primary and Secondary Clutches Eject Clutch Assembly Selector and Sequence Unit rn Circuit Brea...

Page 2: ...edge of the 1 brush groove in the separator roll is 5 s This may be obtained by driving the bronze bearings in the separator roll bearing brackets in or out Align the brushes to the middle of the bru...

Page 3: ...rovide 003 I 4 to 012If clearance between armature and core 2 Adjust these backstop screws so that select shoe latch projects 005 beyond thickness of armature 3 Loosen mounting screws and move magnet...

Page 4: ...nergized mounting screws and position magnet verti 008I unlatching clearance and 003 clearance between armature and core nearer pivot point This adjustment should result in 02511air gap between the ar...

Page 5: ...ratchet is timed to engage the pawl at 235 2 The adjustments are as follows and cally ad for 3 Loosen these screws and hift magnet coil assembly r 030 clearance when de energized and 003I clear ance...

Page 6: ...r and Sequence Unit for 1 Form individual armatures for 003 to 00511clearance between armature and 1 1 1 11 I core nearer pivot point when armature is attracted 2 Locate magnet assembly mounting brack...

Page 7: ...m in just far enough to hold unit without meshing gears Set the machine at 8 18 on the index Trip the restoring magnet armature and turn the unit drive gear clockwise until the stop pawls overlap the...

Page 8: ...achine 10 Adjust restoring latch bail pawl ec centric pivot for 024 to 032 clearance to restoring magnet pawl see large illustration page 7 Check for a t least 010 clearance of restoring bail to setup...

Page 9: ...n OO 1 to 003 4 With both sides of unit cleared to zero back out adjustment bushings evenly to bring center straps as close as possible to cain lobes without exerting pressure on the cams 5 Remove con...

Page 10: ...ap pressure on cam lobes with unit at zero reading To check for this condition have machine idle under power and trip one side of each unit at a time If there is an appreciable movement of the center...

Page 11: ...rew giving 025 movement for each turn Air gap of CB s 1 2 3 and 4 is 025 On all others the air gap may vary from 012 to 040 to obtain the correct contact duration 4 Form at E so that contact surfaces...

Page 12: ...primary and secondary feed shafts Feed roll pressure shoes Feed roll bearing pivots in brush as sembly side plates Remove screw in 1st lower CR hollow feed roll and lubricate eject clutch drive shaft...

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