Bell System Practices Plant Series Adjustments page 17

2.10 Tape-Lid Mechanism (28B Unit Without Tape-lid Spring)
(A)
TAPE LID
NOTE: REMOVE TOP AND TAPE-GUIDE PLATE.
(2) REQUIREMENT
LUBRICATE PRIOR TO ADJUSTMENT.
WITH TAPE LID HELD AGAINST NOTCH IN TAPE­
GUIDE PLATE:
A FEED-WHEEL GROOVE SHALL
B
HOLE IN TAPE LID FOR TAPE-OUT PIN
- IN PLATE (GAUGE BY EYE).
C CLEARANCE BETWEEN PIVOT SHOULDER AND TAPE LID
TO
- SOME
TO ADJUST----WITH TAPE-LID BRACKET MOUNTING NUTS (2)
LOOSENED (INSERT TIP OF
AND INTO GROOVE OF LID), POSITION TAPE-LID BRACKET
- RETIGHTEN NUTS.
TAPE-LID FRONT BEARING SURFACE
AGAINST TAPE-GUIDE PLATE AND THERE
0.018 INCH CLEARANCE BETWEEN THE TAPE LID AND THE TAPE­
GUIDE PLATE MEASURED AT THE TAPE-LID PIN THAT IS IN LINE
WITH THE REAR TAPE GUIDE.
TO ADJUST----WITH TAPE-LID BEARING BRACKET MOUNTING
SCREWS FRICTION TIGHT AND TAPE LID PRESSED AGAINST TAPE-
GUIDE PLATE, POSITION BEARING BRACKET.
QUIREMENTS (lA) AND (18).
TAPE LID
GAUGE
TP156743
LATCH-BA IL
ISS 3, SECTION 573-127-700
ALIGN WITH SLOT IN PLATE.
SHALL ALIGN WITH HOLE
0.010
INCH
TP156743 GAUGE THROUGH SLOT
SHALL
REST SQUARELY
BE 0.010 TO
SHALL
RECHECK RE-
(B) TAPE-LID RELEASE-PLUNGER SPRING
REQUIREMENT
TAPE-GUIDE PLATE HELD HORIZON­
TAL AND TAPE LID OPEN.
APPLIED IN LINE WITH PLUNGER.
MIN. 3 OZS.
MAX. 6
TO START TAPE-LID RELEASE BAIL
MOVING.
TAPE-LID
RELEASE PLUNGER
TAPE-LID BRACK ET
M OUNTING NUTS
TAPE-LID BEARING
BRACKET M OUNTING SCREWS
TAPE-LID BEARING BRACKET
(C) RELEASE PLUNGER
REQUIREMENT
SHALL
RELEASE PLUNGER
WHEN L. I D IS LATCHED AGAINST TAPE-GUIDE PLATE.
TO ADJUST----WITH ECCENTRIC MOUNTING POST
LOCKNUT FRICTION TIGHT AND TAPE LID RAISED,
ROTATE HIGH PART OF ECCENTRIC TOWARD TAPE­
GUIDE PLATE. CLOSE LID AND ROTATE ECCENTRIC
TOWARD BRACKET UNTIL LATCH JUST FALLS UNDER
FLAT ON POST. RECHECK BY DEPRESSING PLUNGER
-WITH LID HELD DOWN, TIP OF LATCH
CLEAR POST A S PLUNGER I S OPERATED.
MAX.
SCALE
OZS.
HAVE SOME ENDPLAY
S H A L L
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