NO. 43
POWER TRACK
NO. 37
UNCOUPLING
SECTION
1044
U
A
C
KW
AorB
U
AorB*
LW
U A
C
RW
U
AorB
0
TW
U A
0
zw
AorD
U
BorC
NO. 90
CONTROLLER
No. 37 uncoupling electromagnet is grounded to the track
system through its track pins and receives its power,
through a push-button ,controller, from a transformer post
providing "fixed" voltage. Fixed voltage assures snappy
uncoupling action regardless of the speed of the train and
evenĀ· if track voltage is off entirely.
The
saine fixed voltage source is used to supply the
remote control blades which are used to control and operate
various operating cars. A chart showing the proper con-
nections to various Lionel transformers is shown at left.
A complete listing of modern Lionel transformers is on
page
2.
Next, place the train on the
track. The order of the cars
does not matter except that
the caboose is' the last car in
the train. Cars are coupled
together by raising the end
of the car and engaging the
couplers by hand. Train can
be assembled most easily on
a straight portion of track.
After placing a locomotive or
car on the track roll it back
and forth to make sure that
all the wheels are properly set
on the rails. If not they may
touch the center rail and cause
"short circuit."
Short Circuits
Most troubles in running an electric train are due to.short
circuits caused by a derailed wheel touching the center rail.
A "short circuit" is a condition where the electric current
by-passes the motor or other device it is supposed to operate
and flows to the outside rail which is connected directly to
the transformer. When a short circuit occurs the train
stops, the lights dim or go out altogether; the transformer
overheats and, if unprotected, will burn out.
To protect them from overheating and damage due to
short circuits most Lionel transformers are equipped with
built-in circuit breakers. A few seconds after a short circuit
occurs, the circuit breaker opens and cuts off the output
of the 'transformer. After a short time the circuit breaker
closes automatically but will reopen almost immediately if
the short circuit still exists. Lionel transformers KW, LW
and ZW are also equipped with red warning lights which
flash on whenever circuit breaker operates.
A derailed car truck. If trouble
persists remove all cars and loco-
motive from the track. Then look for:
Nails, screws, tinsel, etc. across
the track. Sometimes a "magne-
trj!ction" locomotive will pick up a
small iron object and hold it to the
track from underneath.
Long wire ends connected to the
two lockon clips touching each
other.
A bare wire touching two bind-
ing posts of a transformer or an
accessory piece of equipment.
Broken or displaced insulation be-
tween center rail and track tie. This
may sometimes be difficult to find.
If necessary check each track sec-
tion separately.
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