Bridgeport Interact 2 - Electrical Checks; Pneumatics; Spindle Operation; Spindle Brake

c. Check
that transformers
T7,T2
(located
in the
power cabinet)
and the spindle
motor
are
wired
for
the correct
supply
voltage
and record
this
below:
T 1
wire
numbers
1
06
and
7O7
,
T2 wire
numbers
1 1 1 md 172
Equipment
wired
for
volts
A.C. oPeration
d.
Check
that the
spindle
motor
overload O/L
is correct
for
the
operating
voltage
selected.
3.2.3
ElectricalChecks
Switch the
main isolator ON
and
carry out the
following
electrical
tests:
a. Measure the
A.C. voltage
between wire
numbers
8 and
9,
and
check
that
it
falls
within
the
range 110 volt A.C.
+.
5
volt.
Voltage
reads
........
volts
A.C.
b. Measure the
D.C.
voltage
between
wire
numbers
116 and
90
and check
that
it
falls
within
the
range 24
volts
D.C.
to
28 volts
D.C.
Voltage
reads
........
volts
D.C.
c.
Measure the
smoothed
D.C. voltage
terminals
65 and
90
and
check
that it
falls
within
the
range
22
volts D.C. to
26 volts
D.C.
Voltage
reads
.
volts
D.C.
3.2.4
Pneumatics
Set the
respective
pressure regulators to
provide
a nominal
pressure
of 80
psi
(5.62
kglcm2)
to
a. The spindle
brake
and speed change
pneumatics.
b. The air assisted
knee.
3.2.5
SpindleOperation
Switch ON,
REF machine
and carry
out the
following
checks
a. Spindle
brake
i. With
the
brake switch
set
to OFF, check
that the brake
is not
applied.
ll Operate
the
spindle starter
switch
and
check
that the spindle
rotation
is correct.
If
necessary
interchange
lines Ll
and L2
to
provide the correct
rotation.
Check
that
the spindle
runs
both
forward and
reverse.
With
the brake switch
set to AUTO,
check
that when
the spindle
is switched
off, the
brake is applied
and
when
the spindle
is started,
the
brake
is released.
lll.
IV
3-2