Lionel 151 SEMAPHORE - Page 2

, TYPE “R” TRAINMASTER TRANSFORMER |
NO. 152). 7 , |
BS _ AUTOMATIC
x CROSSING GATE
‘
s : ze ; :
CTC LOCKON “WY
NO. 153C CONTACTOR
Figure
2—Connections
for
a
No.
152
Crossing
Gate.
Notice
that
the
Accessory
Circuit
is
Separate
from
the
Track
Circuit.
No.
45N
Watchman
is
Connected
in
the
same
Way.
CONNECTIONS
FOR
NO.
152
CROSSING
GATE
x
_ AND NO. 45N AUTOMATIC WATCHMAN
To
operate
No.
152
Crossing
Gate
or
the
No.
45N
Watchman
connect
No.
2
clip
of
the
Contactor
to
one
of
the
pair
of
transformer
output
binding
-
posts
-supplying
power
for
the
accessory.
Connect
No.
3
Contactor
clip
to
a
terminal
of
the
accessory.
By
means
of
a
third
wire
connect
the
remaining
accessory
terminal
to
the
second
of
the
pair
of
transformer
binding
posts.
(See_
Figure
2).
Connected
in
this
way
the
Contactor
acts
as
a
simple
“off
and
on”
switch
to
switch
on
the
accessory
circuit
when
the
Contactor
is
depressed
by
the
weight
of
a
passing
train.
_
=
ao
Ny
Notice
that
in
this
case
the
accessories
have
no
electrical
connection
to
the
track
and
operate
on
a
separate
circuit
from
the
track
current.
In
this
way
the
accessories
can
be
supplied
with
a
fixed
voltage
which
is
more
suitable
for
their
operation
than
the
variable.
voltage
used
for
controlling
train
speed.
ADIUSTING THE CONTACTOR
After all connections are made and transformer current is on, the Con-
tactor should be adjusted so that the accessory will operate only at the proper
time. With the train stopped on the track several sections away from the
Contactor so that no pressure is exerted on the Contactor, turn the adjustment
nut
either
up
or
down
until
the
accessory
operates.
Then
back
up
the
adjust-
ment
nut
just
enough
to
cause
the
contactor
to
open
and
the
accessory
to
return to its normal non-operating position. Adjusted in this way the Con-
tactor should now respond to a light pressure on the track and the accessory
will operate as long as any part of the train is passing over the Contactor.
Page 2