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S225-3357-3
FES: SS234069
Figure 4-1 6. Armature Adjustment
Guide
Comb
and
Bumper
Figure 4-1 7. Interposer Unlatching Clearance
there should be 0.003-inch minimum clearance between
bottom of bail and interposers (Figure 4-17). Check
adjustment by placing the hand on the punch arms to take
up any clearance between top of bail and punch arms; then
trip all interposer armatures. All positions should latch
under the bail.
enter their armature notches at 92 degrees and so that
all
are in the notches at 100 degrees. Space interposer
movement varies from that of the other interposers, but
the interposer should be in its armature notch at 100
degrees (Figure
4
1 8).
2. The heel of the latching end of the interposers has been
rounded to avoid contact with the opposite side of the
notch in the armatures. Shift the magnet unit toward or
away from the interposers to obtain 0.040-inch to
0.050-inch clearance (Figure 4- 17).
The preceding adjustment should result in minimum
unlatching clearance of 0.008 inch for each interposer,
except the space interposer, which can have a minimum
unlatching clearance of 0.005-inch (Figure 4-19).
3. Adjust eccentric screw on knockoff bail (Figure 4-18) to
cause bail to contact an attracted armature at both ends
of unit between 13 degrees and 20 degrees. If the
eccentricity is insufficient, inspect cam follower for
wear. It may be necessary to pivot entire magnet unit
around armature latching point to bring bail closer to
armatures.
4. Momentarily attract each armature electrically. The
spring should cause the armature to fall away from the
.
core. If the armatures hang up when the pick circuit is
broken, they should be replaced; the residual magnetism
causes excessive wear on the knockoff bail.
Guide Comb
and
Bumpr
I
4.6.4
Punch Interposer Magnet Aosembly Adjustment
> , ,
'
I
1 1
I
The position of the magnet unit affects three interrelated
x>%
'
adjustments: unlatching clearances, reIatching of inter-
1
posers in their armature notches, and knockoff bail.
1. Install magnet unit with reasonable unlatching clearance
as a preliminary step. Do not overtighten screws because
magnet unit will be readjusted in step 2. Restore
all
but
looa
four interposers across the unit. While manually rotating
92
O
index clockwise, position magnet unit so that the
unlatched interposers in their downward motion start to
Figure 4-18. Interposer ReIatching Adjustment
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