Bell 28E Adjustments page 48

SECTION 5 73-127-703
3.15 Start-Stop Pulse Contact (continued)
CONTACT BRACKET (STROBING)
Note 1: When strobing auxiliary contacts,
use a 7.42 unit DXD scale. Synchronize the
signal generator of the transmitter distribu­
tor with the DXD so that the end of the stop
pulse image is in line with the end of the
stop pulse on the DXD scale when trans­
mission is continuous.
line direct current of 60 rna± 10% or
20 rna± 10% to strobe the contacts.
STOP CONTACT
START CONTACT
Note 2: Breaks are permissible within 5
divisions of the beginning or end of a trace.
P age 48
Use normal signal
MIN CLOSURE
95 DIV
0 DIV OF STOP SEGMENT TO 142ND DIV
OF STOP SEGMENT
60 DIV
122ND DIV OF STOP SEGMENT TO 95TH
DIV OF START SEGMENT
Requirement
Contacts must close within the following
range.
CLOSURE RANGE
To Adjust
Loosen contact bracket mounting screws.
Position the contact bracket to meet re­
quirements. Retighten contact bracket
mounting screws.