Merc-O-Tronics 98 - TESTING AC GENERATOR OUTPUT; AC Generator Output Test Procedure

Figure 32
.ESTING OUTPUT OF
AC GENERATOR
OR UNI.CHARGER
1. The AC
generator
ean be check
for output
by shorting
between
the
regulator
"F"
terminal
and
ground
with a
screwdriver.
(Fig'
32).
A.
Operate engine
slightly above
idle speed,
(1500
RPM)
and
note
the reading on
the
ammeter.
A11 accessories
must
be
turned
off
when
this
check
is
made.
If output
is increased
(note
ammeter
reading)
the
AC
generator,
uni-charger, or
rectifies
is not at fault.
D. The
trouble is
probably
due to
an
improper
regulator
voltage
setting or a
defective reguiator.
E, In this case,
proceed
to the section
entitled
"Checking
Regulator
Voltage Setting.
"
2, If
no
output
is
obtained,
the AC
generator
or
uni-charger
is defective.
3. Both
the field winding
and
the
stator
winding should
be checked
with
the
ohmmeter on
the
Merc-O-Tronic
Analvzer
scale No. 2
or
3
as
required.
B.
c.
3l