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SECTION 573-127-703
3.21 Tape Withhold Mechanism
(A)
MAGNET ARMATURE GAP
To Check
With the armature attracted, check the
gap between the end of the armature
adjusting screw and the plate.
Requirement
--
Min 0. 025 inch---Max 0.035 inch
To Adjust
L oosen armature adjusting screw
locknut friction tight.
screw to meet requirement.
locknut.
ADJUSTIN G
FEED
PAW
(Front Views)
ECCENTRIC
FEED
PAWL
Pa�c 54
Rotate adjusting
Retighten
SCREW
�
/
B LO C
K
BAIL
A RM
PIVOT
'
ECCENTRIC
PIVOT
ECCENTRIC
PIVOT
CLAMPSCRE W
(B ) BLOCKING BAIL ARM ECCENTRIC
To Check
Place sensing pins in their lowest
position.
arm eccentric pivot to right at approx
imately the same angular position as
the feed pawl eccentric.
Requirement
some clearance
between the extension on the blocking
bail and the tail of the feed pawl.
To Adjust
Loosen arm eccentric clampsc rew.
Rotate arm eccentric to meet require
ment. Retighten clampscrew.
(C)
BLOCKING BAIL ECCENTR IC PIVO T
To Check
Trip clutch.
Hold main shaft latched in stop position.
Check clearance between blocking bail
extension and feed pawl at closest point.
Requirement
I NG
To Adjust
Loosen eccentric pivot clampst-rcw
friction tight.
to meet requirement.
screw.
N ote 1:
ECCENTRIC adjustment, and refine if
necessary.
Note 2:
justment there should be some---to---
0.015 inch clearance between the feed
pawl and the feed ratchet at the closest
point, as the feed pawl is cammed out
of the ratchet during the blocking
operation (magnet armature attracted).
If necessary, refine BLOCKI"TG BAIL
ARM ECCENTRIC ai1dl3LOCKING
BAIL ECCENTRIC PIVOT adjustmer.ts
to meet this requirement.
Place high part of block bail
Hold armature attracted.
Rotate eccentric pivot
Retighten t'.l::lmp
Check BLOCKING B AIL ARM
As a final check on this ad
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