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ISS
7,
SECTION
573-115-700
3. 37
Universal Contact (Stunt Box) Mechanism (continued)
GENERAL APPLICATION TIMING -FINAL (USING DXD OR SIMILAR EQUIPMENT)
CONTACT BRACKET AND DRIVE CAM POSITION
THE NORMALLY OPEN UNIVERSAL CONTACTS SHOULD CLOSE WITHIN ±5 MILLISECONDS OF
THE CLOSURE OF THE NORMALLY OPEN STUNT BOX CONTACT.
TO ADJUST
REFINE THE DRIVE CAM (AND, IF NECESSARY, THE BRACKET) ADJUSTMENT BY ROTATING
THE DRIVE CAM WITHIN THE SPECIFIED LIMITS.
TRIP CAM
REQUIREMENT
THE NORMALLY OPEN UNIVERSAL CONTACTS SHOULD OPEN WITHIN -5
+0
MILLISECONDS
OF THE OPENING OF THE NORMALLY OPEN STUNT BOX CONTACT.
TO ADJUST
REFINE THE TRIP CAM ADJUSTMENT BY ROTATING THE. TRIP CAM ON ITS SHAFT WITHIN
THE SPECIFIED LIMITS.
SPECIAL ADJUSTMENTS (FOR 100 WPM)
NOTE: TO PREVENT EXCESSIVE FLEXING OF THE SWINGER, THE NORMALLY OPEN CONTACT SPRING
STIFFENER MUST BE BENT TO HOLD THE SPRING AWAY FROM THE SWINGER WITH THE DRIVE LINK
IN ITS UPPERMOST POSITION.
NORMALLY OPEN CONTACT GAP (100 WPM)
REQUIREMENT
WITH THE SWINGER RESTING AGAINST THE NORMALLY CLOSED CONTACT THE GAP SHOULD BE
MIN 0.075 INCH
MAX 0.085 INCH
TO ADJUST
BEND THE CONTACT SPRING STIFFENER.
CONTACT BRACKET AND DRIVE CAM POSITION (100 WPM)
REQUIREMENT
WITH THE LATCH CAM IN ITS FULLY LATCHED POSITION
MIN 0.015 INCH
MAX 0.025 INCH
BETWEEN THE NORMALLY OPEN CONTACT SPRING AND ITS STIFFENER.
TO ADJUST
POSITION THE DRIVE CAM AND/OR, IF NECESSARY, THE CONTACT BRACKET.
SPECIAL APPLICATION TIMING (USING DXD OR SIMILAR EQUIPMENT)
A. NORMALLY CLOSED CONTACTS
(100
WPM FOR 83B2 SWITCHING SYSTEM)
1
•
2.
3.
THE NORMALLY CLOSED CONTACTS SHOULD CLOSE WITHIN
50
TO 80 DIVISIONS AFTER
THE START OF THE STOP PULSE.
THE NORMALLY OPEN CONTACT SHOULD CLOSE PRIOR TO THE END OF NO.3 PULSE.
THE NORMALLY OPEN CONTACTS SHOULD REMAIN CLOSED FOR AT LEAST 238 DIVISIONS
(100 WPM DXD WITH 742 SCALE DIVISIONS).
NOTE: THE RELATION BETWEEN THE NORMALLY CLOSED UNIVERSAL CONTACT MARKING
PULSE AND THE STOP IMPULSE OF THE RECEIVED SIGNAL VARIES WITH THE RANGE
SCALE SETTING OF THE UNIT.
Page
113
Содержание Plant Series
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