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SERVICE AIDS
CUSTOMER ENGINEERING SERVICE PANEL
The 1402 Card Read- Punch contains a customer engi-
neer service panel (Figure 7-1). This panel allows
the Customer Engineer to check certain routine areas
without going directly to the internal parts of the
machine. This can save much valuable time. Follow-
ing is a list of switches and their use.
Dial Display Switch: This toggle switch selects
which one of the timer indexes is being used with the
service panel.
Off Line Card Feed: This rotary switch when set
to OFF LINE allows the feeds to be operated inde-
pendently of the system.
It
must be set to ON LINE
for the system to operate.
Read
Clutch
Trip: This momentary contact
switch allows the read clutch to be electrically
tripped.
The off line card feed switch must be on
OFF LINE to make this switch effective.
Brush Selection: This rotary switch, when set to
a brush pOSition, internally connects brush 3 (outer
light) and 78 (inner light) of the selected set of
brushes to the dynamic timer.
When the corres-
ponding feed brush display switch is held on, the brush
timing is displayed on the associated feed timer index.
Example: To check second read brush timing, set
brush selection to
SECOND READ and run card
through the read feed with columns 3 and 78 punched.
When the read brush display switch is held ON, the
brush timing is displayed on the read feed index.
Read Brush Display: This momentary contact
switch is used in conjunction with the brush selection
switch to display read feed brush timing.
Cam Selection: This rotary switch when set to a
position on the dial, selects a certain CB for a timing
check.
Read Cam Display: This momentary contact
switch is used in conjunction with cam select switch.
It
displays the read feed CB selected for a timing
check on the read feed index.
Voltage Hubs: Each power supply voltage maybe
checked at these hubs.
Punch Clutch Trip: This momentary contact
switch allows the punch clutch to be electrically
tripped. The off line card feed switch must be set
to OFF LINE to make this switch effective.
Sync: Because the punch feed has a four-tooth
clutch ratchet, this momentary contact switch is used
to sync the punch feed and the punch index at 315
0 .
Punch Brush Display: This momentary contact
switch is used to display the timing of the punch check
brushes when the brush selection switch is set to
the PUNCH CHECK pOSition.
Punch Cam Display: This momentary contact
switch is used in conjunction with the cam selection
switch to display the punch feed CB selected for a
timing check.
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CB SELECTION CHART
RD BRUSH CB
PCH STACK CL
RDR CLUTCH MAGNET
4.
RDR STACK MAGNET
5.
NO.1 CL AND CAM
6.
NO.2 CL AND CAM
7.
PCH CLUTCH MAGNET
8.
PCH STACK MAGNET
9.
PCH STACK SELECT
10. PCH STACK RESET
11. AFTER 9 CAM
@
PUNCH
PUNCH
SYNC
CLUTCH
W
BRUSH
CAM
TRIP
@
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3
&
78
S!l.USHES
DISPLAY
6
00
0
0
Figure 7-1. CE Service Aids
7-1
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