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1.
Form the armature tip for 0. 045" too. 050"
movement of the armature link (Figure 4-1).
2.
Remove magnet unit for the rest of the check.
3.
Check for o. 000" too. 005" clearance between
the armature and the core with the armature
attracted; also, O. 003" to O. 005" between the
upper yoke and armature (Figure 4-1).
4.
Position the armature knockoff spring assembly
so that the armature links 1 and 120 contact the
knockoff springs O. 012" to O. 018" before the
armature is fully attracted. This should result
in spring tension against the armature link of
400 grams ±25 grams (Figure 4-1).
4. 2. 2 Print Magnet Armature Knockoff Adjustment
1.
With the print magnet armature attracted, there
should be o. 005" to o. 027" clearance between
the print clutch latch and the armature lmockoff
lever (Figure 4-1).
.000" to .005"
Between
2.
With the print magnet armature released and
the print clutch latch resting on the armature
knockoff, the overlap of the clutch latch on the
knockoff lever should be 0.033" to 0.043"
(Figure 4-2).
4. 2. 3 Print Magnet Armature Link Adjustment
1.
Remove print magnet assembly (see 4. 2. 4).
2.
The links should fall freely when the magnet
and link assembly is tilted from one end to the
other.
3.
There should be a clearance of O. 007" to o. 018'
1
between the top guide bar nearest the armature
knockoff lever and the armature link (Figure
4-3).
4. 2. 4
Magnet Unit Removal
1.
Remove four holding screws for the print
magnet unit.
Two socket head screws are
Armature Knockoff
Spring
400
±
25
Grams
Figure 4-1. Print Magnet Armature and Link
4-2
1132 FEMM (4/67)
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