Teletype 28 Manual page 105

ISS 8, SECTION 573-115-700TC
3. 29 Vertical Tabulation and Transmitter Distributor Control Mechanism (continued)
VERTICAL TAB BLOCKING
PAGE FEED-OUT LEVER (Outer)
BLOCKING LEVER (Inner)~
TRANSMITTER CONTROL SWITCH
p~~: ~~~-~
I
. ~·
VVERTICAL TAB
(Transfer Type)
~
.. ---- • _ ,. SLIDE
:.
....
FUNCTION ARM _ _ _ _
1,_ -
~
SWITCH ASSEMBLY
••n ..
n.TI'I'\Y'O.T,...
SCREWS
GUIDE BAR ... · RETAINER
'
<@?
(Left Side View)
1£-"•
/l -
0
a
!ili:=:---,
TRANSMITTER CONTROL SWITCH (Transmitter Control Only)
(1)
Requirement (For Transfer Type Contacts)
\
With normally closed (lower) contacts closed, clearance between insulated extension
of swinger and lobes of feed-out and vertical tabulator blocking lever shall be
I
Min some clearance---
Max
0. 005linmcclifi~=====----==---~-------_I­
To Check
Rotate main shaft until feed-out and vertical tabulator blocking levers are unoperated
(blocking levers resting on slides).
To Adjust
With transmitter control switch mounting screws loosened, position the contact
assembly. Tighten screws.
(2)
Requirement
...._---With the normally open (upper) contacts closed
(a) Lobe of feed-out blocking lever (inner lever) shall fully engage insulated
extension of contact swinger.
{b) The feed-out blocking lever shall rest firmly on the function arm guide bar
(internal -check by lifting lever lightly at contact end) and also separate
the normally open contact spring from its stiffener as the upper contact closes.
To Check
Select feed-out code combination, rotate main shaft until feed-out slide is in its
extreme forward position and feed-out blocking lever drops behind its slide to close
normally opened contacts.
To Adjust
With contact pile-up mounting screws loosened, position the assembly. Tighten screws.
(3)
Requirement
With the normally open (upper) contacts closed
(a} Lobe of vertical tabulator blocking lever {outer) shall fully engage the insulated
extension of the swinger.
(b) The vertical tabulator blocking lever shall rest firmly on the function arm guide
bar (internal - check by lifting lever lightly at contact end) an1 also separate
normally open contact spring from its stiffener as upper contact closes.
To Check
Select vertical tabulator combination and proceed as in item To Check of Requirement
(2)
above.
Page 105