IBM 29 Card Punch Field Engineering Maintenance Manual page 13

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A. Alphabetic Duplicate
With auto skip/dup
switch off, key dup
alphabetic and blank
columns
Completes
duplicate
field
Yes
C Perform B and C
+
Extra column or at wrong time
Escapement
Check dup key contact
Check 12 program contact
and circuit
|
t
|
Check escapemen
Check dup relay sep
interlock relay
|
Check escape circuit |
Check P1 cam contact
No trouble found, go
to B
No trouble found, go
to interposer selection
flowchart (Figure 1-7)
B. Numeric Duplicate and Skip
Operate numeric keys,
auto dup all 12 digits,
and alternate skip
| Check 12 program co
1
Check dup relays
ve
ntact
Check 4 circuits
No —- found,
to B
*)
Too far
Card goes
Escapement
off registration
Yes (nicked or torn holes)
Check escapement
interlock relay
L
Check 0 program
el
duration
|
Check PI timing and
| Check P1 cam contoct |
|
Check auto Le
|
switch
Check - clutch
Check that punch
aa
escape interlock
relay
|
|
engagingbail
Check setup of IBC
|
Check escape circuit
|
No trouble found, go
to interposer selection
flowchart (Figure 1-7)
No trouble found, go
to interposer selection
flowchart (Figure 1-7)
Completes
dup field
Check 12 program contact
r
Check dup relays
|
Check dup circuit
p=
ait.
a
"~<
Perform A and C
Figure 1-8. Escapement Failures (Part 1 of 2)
1-6 (4/69)

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