Teletype 28 - Page 146

SECTION 573-118-700TC
3.67 Blank Delete Mechanism (continued)
Note 1: The following adjustments should be made prior to installing the contact bracket
assembly on the unit.
CONTACT SPRING
RequiremPnt
Min 4-1/2 oz---Max 5-1/2 oz-----.
to move contact spring away from
its stiffener.
To Adjust
Bend contact spring to meet requirement.
Recheck
OPEN CONTACT GAP adjustment.
SWINGER CONTACT SPRING
Requirement
Min 2 oz---Max 3 oz--------
to just move swinger contact spring
away from normally closed contact.
To Adjust
Bend contact spring to meet requirement.
STIFFENER
OPEN CONTACT GAP
Requirement
Normally open contact gap
~--Min 0.010 inch---Max 0.015 inch
To Adjust
Bend stiffener to meet requirement.
NORMALLY CLOSED CONTACT
SWINGER CONTACT SPRING
Note 2: The following adjustments should be made after
contact bracket assembly is mounted on unit.
CONTACT ASSEMBLY (Earlier Design)
Requirement
Contact assembly should line up centrally
with insulator on blank function blade.-----.
INSULATOR y
BLANK FUNCTION BLADE J
To Adjust
With mounting screws loosened, line up
contact assembly to meet requirement.
Tighten screws.
CONTACT GAP
Requirement
Select SPACING combination ( --3--) and rotate
main shaft until blank function blade drops into
sensing position. Clearance between contact
springs
Min 0.010 inch---Max 0.015 inch----"""'
To Adjust
With mounting screws loosened, position
contact mounting bracket. Tighten screws.
Page 146
CONTACT ASSEMBLY
(Later Design)
This contact assembly should be equipped with
a guard located under the plate to eliminate a
shock hazard.
CONTACT ASSEMBLY
MOUNTING SCREWS
CONTACT
_.__MOUNTING
BRACKET
(Right Side View)
CONTACT MOUNTING
BRACKET SCREW