Teletype 28 - Page 137

ISS 8, SECTION 573-118-700TC
3. 58 Multiple Mounted Function Blade Contact Mechanism
Note 1: For Early Design see 4.21.
Note 2: The following adjustments should be made prior
to installing the contact bracket assembly on unit.
(A) NORMALLY OPEN CONTACT
GAP
Requirement
Min 0. 008 inch
Max
0.015 inch
To Adjust
Bend
normally open
contact spring.
(B) NORMALLY CLOSED CONTACT
Requirement
,..---Min 8 grams---Max 15 grams
to move swinger contact away from
normally closed contact.
To Adjust
Bend normally closed contact
spring.
SWINGER
CONTACT---- \ ! :t
Note 3: The following adjustments should
be made after the contact bracket assembly
is mounted to the unit.
(Left Side View)
NORMALLY OPEN CONTACT
NORMALLY CLOSED
CONTACT
"
.1-=\ =
(Left Side View)
(C) NORMALLY
OPEN CONTACT GAP
(1) Requirement
With function blade in its lowest position
in nonselected condition, clearance be·
tween contact swinger insulator button
and function blade
'------Min some
(2) Requirement
Contact gap
'----------Min 0. 008 inch---Max o. 015 inch
NORMALLY CLOSED CONTACT To Adjust
I
Bend normally closed contact spring.
SWINGER CONTACT
(3)
Requirement
....,. With function blade in its lowest position
• s, o' in the selected condition, gap between
3 g: ~~ s I swinger contact and normally closed
c================::Jti~::---1-1--11 (now open) contact
- I Min 0. 015 inch
FUNCTION BLADE SPRING
(Left Side View)
FUNCTION
BLADE
and some overtravel of normally open
contact.
To Adjust
Bend normally closed contact spring.
Refine previous adjustments to maintain
requirements.
Page 137