MEASUREMENT
OF
REGULATOR
VOLTAGE
Regulator
voltage
is
measured
with
regulator
assembled
with
alternator
When
measuring
voltage
with
regulator
mounted
on
car
it
is
necessary
to
rotate
engine
at
high
speed
Connect
DC
voltmeter
l5
30Y
DC
ammeter
l5
30A
battery
and
a
O
25fl
resistor
rated
at
25W
with
cables
as
shown
I
Check
to
be
sure
that
all
electrical
loads
such
as
lamps
air
conditioner
radio
etc
are
turned
off
2
Before
starting
engine
be
sure
to
make
short
circuit
with
a
cable
be
tween
fuse
side
terminal
of
resistor
O
25fl
and
negative
side
terminal
of
ammeter
Failure
to
follow
this
pre
caution
will
cause
needle
of
ammeter
to
swing
violently
resulting
in
a
dam
aged
ammeter
Engine
Electrical
System
Genera
tor
A
r
iJ
IG
Fuse
box
i
B
Rqulator
Connector
Wire
harness
Short
circuit
here
between
fuse
side
tenninal
and
terminal
of
ammeter
before
starting
the
operation
Ammeter
lOA
V
Voltmeter
30V
EE055
Fig
EE
48
Measuring
regulator
voltage
with
regulator
on
vehicle
3
Refer
to
the
following
chart
to
determine
if
regulator
and
relative
EE
21
parts
are
in
good
condition
