- 56 -
(B-138)
the shoulder in the notch in the upper contact lever
and
the top
of
the
lower
contact lever.
To
adjust, position the stop lever plate
by
means of its
mount-
ing
screw.
BREAK LEVER
ADJUSTING
PLATE
ADJU
STMEN
T (Figure
S6B)
There should be
some
clearance, not mre than
.015"',
between the
rear
upp
er
corner of the beveled edge on the left end of the upper contact lever and
the lower front edge of the stop lug on the stop lever plate when the break
lever is slowly operated
by
hand until the two edges are just opposite each
other. To adjust, position the break lever adjusting plate
by
means of its
adjusting screw.
STOP LUG
ADJUSTMENT
(Figure
�A)
The upper extension of the stop lever should rest against the stop
lug on the mounting bracket when the stop lever is in its unoperated position,
and there should be some clearance, not more than
.030",
between the rear side
of the upper contact lever and the front edge of the stop
lever
plate. Adjust,
if necessary,
by
bending the stop lug on the
moun
ting bracket.
UPPER
CONTACT lEVER
SPRING TENSION
(Figure
88B)
With the send-receive lever in the
SEND
position (up), and the
No. 3
contact spring held a�
from
the extension on the upper contact lever, hook an
8
oz. s cale under the left erd of the contact lever at the spring hole and pull
up vertically in line with the spring. It should require
3
to
5
ozs. to start
the upper contact
lever moving.
STOP tEVER
SPRING TENSION
(Figure 87A)
With the stop lever resting against the
.\Jil
on
the JOOunting
bracket, hook
an
8
oz. scale
in
the
spring mounting hole
.' · .
the stop
lever and
pull
in
line
with
the spring.
It
should
require
1
to 2
ozs.
to
start
the
stop
lever
moving.
SEND-R!X:EIVE-BREAK CONTACT SPRINGS ADJUSTMENT
Viewing the
base
from
the tront, the send-receive-break
contac-t
springs
are
numbered
1,
2,
3,
4,
ard
6
from lett
to
right (
S
ee Fi
gu
r
e
�).
(A)
Move the selli-receive le
v
e
r
to
the
SEND
position
(up).
(1)
All
contact springs
and
poin
t
s
should
be in
line."
(2)
There
should be some clearance, not more than
.008"',
between the
fibre
in
su
la
t
o
r
on the lower end of No.
1
c
o
nt
ac
t spring and the
extension on the lower contact lever to the right of it.
When checking
this
clearance, the lower contact lever
should
be
held.
firml¥ against its stop
(
F
i
g
ur
e
SSA).
Adjust
by
bending contact
spring
No.
2.
