Teletype 28 Manual page 87

Typing unit
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ISS 8, SECTION 573-115-700TC
3.10
Horizontal Tabulator Mechanism (continued)
Note: The following two horizontal tabulator mechanism
adjustments should be checked before making the trans-
mitter control adjustments shown. below.
1.
Operating lever extension link (3. 02)
2.
Operating lever adjusting plate (3.02)
If
either of the above adjustments are changed, the
transmitter control adjustments should be rechecked •
TRANSMITTER CONTROL CONTACT SPRING
Requirement
(Left Side View)
Operating lever in unoperated position.
Min 3-1/2 oz---Max 4-1/2 o z - - - - - - - - - - - - - - - - .
to just open contacts.
To Adjust
Bend the long contact spring.
Note 1: To facilitate bending contact spring, the contact
bracket assembly may be removed from its mounting
plate and taken partially out of typing unit. Loosen
mounting screw, pivot contact bracket toward rear
until it is clear of screw, slide bracket to left off pin
in upper end of bracket mounting plate and lift switch
out to a more accessible position. Install contact
bracket assembly in reverse procedure after adjusting
spring tension. Tighten screw.
'III'"P.'l'"
: : : ·
t).r~:.
rr
bllilm
f.:
.:··11
,,
.,
·:·
LONG CONTACT SPRING
1•_:_:·.~
:.:···
(Left Side View}
CONTACT ASSEMBLY BRACKET
BRACKET MOUNTING SCREW
TRANSMITTER CONTROL CONTACT GAP
Requirement
Operating lever extension link pulled to rear
until blocked by blocking lever. Clearance
between contacts
.-----Min 0.010 inch---Max 0.020 inch
To Adjust
Position contact assembly bracket with
mounting screw loosened. The bracket pivots
about a pin at upper end of bracket.
Note 2:
If
there is not enough slack in switch
cable assembly to permit access to mounting
screw, loosen ties along cable and reposition
cable to obtain a slight amount of slack at switch
end.
Page 87

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