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
Loosen armature adjusting screw
locknut friction tight. Rotate adjusting
screw to meet requirement. Retighten
locknut.
(Front Views)
ADJUSTING
SCREW
FEED
PAW
�
B
LO
C
K
I
NG
(B) BLOCKING BAIL ARM ECCENTRIC
To Check
Place sensing pins in their lowest
position. Place high part of block bail
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 ECCENTRIC PIVO
T
To Check
Trip clutch. Hold armature attracted.
Hold main shaft latched in stop position.
Check clearance between blocking bail
extension and feed pawl at closest point.
Requirement
0.002
inch---Ma:x
0.035
inch
To Adjust
ECCENTRIC
PIVOT
/
BAIL
A RM
Loosen eccentric pivot clampst-rcw
friction tight. Rotate eccentric pivot
to meet requirement. Retighten t'.l::lmp
screw.
FEED
PAWL
Pa�c 54
ECCENTRIC
PIVOT
'
ECCENTRIC
PIVOT
CLAMPSCRE W
N ote
1:
Check BLOCKING B AIL ARM
ECCENTRIC adjustment, and refine if
necessary.
Note
2:
As a final check on this ad
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
BAIL ECCENTRIC PIVOT adjustmer.ts
to meet this requirement.