3M Polygun EC Manual Del Propietário página 30

Condition
1:
Applicator
will
not
heat
Thoubleshooting (continued)
Important:
Applicator must
be cooled
to room temperature for
step 14.
14.
Check
continuity of
the
thermistor. First, disconnect the thermistor
lead
from terminal number
1
of
the upper
terminal block (TB2)
(see Figure
S).
Using
an
ohmmeter, measure
between the
disconnected thermistor lead and
terminal number 2
of terminal
block TB2
(see Figure
S).
Important:
Thermistor lead
must
be disconnected
for this
test.
Measured value between the disconnected
thermistor lead
and
terminal
number
2
should be
between .65 and
1.25
Mega-ohms.
If
measured value
is not within this
range, replace the
defective
thermistor assembly
by ordering Thermistor
Kit
#62-9 680-97
36-0.
If
measured value
is within
the acceptable range, reconnect the
previously
disconnected
thermistor lead to terminal number
I
of
terminal block TB2 (see Figure
S) and
proceed to
the
next
step.
15. Check the
power cord for obvious wire
damage.
If
damage
is
observed, replace the
power
cord
by ordering
Power Card
kit
#
62-9680-9924-2(UK).
If
no
damage
is observed, check the
electrical continuity of
the
power cord wires
(steps
15a
and
15b).
a.
Using
an
ohmmeter, check
for continuity
between
terminal
number
1
(brown wire from cord)
on the
lower terminal
block TB1
and the
AC line terminal on the
applicator plug
(see
Figures
T
and
U).
o
1
i
I
{
I
{
I
{
Blue wire
Brown wire
20
Figure
T
@
3M
1996