ductor leads (red, white, black) of
the power cable to the power cable
connections on the circuit breaker,
and ground the fourth conductor
lead (green) to the test stand as
shown in figure 11. Ground the
test stand to a suitable external
ground.
Note. I n t e r c h a n g i n g any two con-
ductor leads (red, white, black) on the
power cable connections of the circuit
breaker (fig, 11), will change the rota-
t i o n of the driving heads (4 and 5,
Warning: Disconnect the ex-
ternal power supply from the test
stand and place the switch on cir-
cuit breaker in the "OFF" posi-
tion, (c) above, before any attempt
is made to change wiring or con-
tact components in the high volt-
age compartment.
2.On the high voltage compartment
there is an interlock switch (fig.
test stand while the compartment
door is open or not closed tightly.
Be sure this door is closed tightly
or the test stand will not function
p r o p e r l y because the interlock
switch will not maintain the con-
tinuity of the control circuit.
Note. The test stand is connected for
220-volt operation when received from
the factory. If 440-volt operation is de-
sired, disconnect the external power sup-
ply and place the switch on the circuit
breaker in the "OFF" position (fig. 11).
Connect the drive motor terminal board
links and the transformer terminal board
link in accordance with wiring diagram
vent, air intake and exhaust.
Remove the number CR123F91.4B heater
elements (fig. 11) and install in their
erly and securely assembled and in
place the number CR123F48.7B heater
elements (fig. 65). The 100-ampere, 600-
good condition.
volt fuses (fig. 12) will not have to be
(2) Inspect to see that all connections are
changed inasmuch as they are used for
secure (figs. 11 and 12).
short circuit protection only.
Warning: Disconnect the external
d. Lubrication. Lubricate the test stand as
power supply from the test stand and
prescribed in chapter 4, section II.
place the switch on the circuit breaker
e. Inspection.
any attempt is made to inspect con-
(1) Perform a general inspection of the
nections, (2) above.
test stand to assure all parts are prop-
