the voltage regulator and test prods should be secured
so
that they are not being held during testing. See Figure
8-9.
Start the generator set and allow it to stabilize. Measure
the field voltage with no load applied and then with full
load applied. Both readings should fall within a range of
18
to
60
volts DC.
If
the set cranks but will not run, check
to see that battery voltage is being supplied to the volt-
age regulator pin
7
(positive lead) and ground (negative
lead) during
start
up.
If
battery voltage (approximately
12
volts) is being supplied to the voltage regulator at pin
7,
and no output voltage was measured, replace the volt-
age regulator and retest.
If
battery voltage
is
not supp-
lied to the voltage regulator during starting, refer to
Control section
(7)
for troubleshooting procedures.
Contact with rotating machinery can
result in severepersonalinjury. Keep
hands, clothing,jewelry and fingers clear while servic-
ing slip rings.
Electrical
shock
can cause severe
'AWARNINGI
persona/ injury
or
death. Use
extreme caution when working
on
electrical circuitry-
Attach and remove meter leads only when generator
set
is
not operating.
Do
not touch meter
or
meter leads
.
-.
--
---
--
---
---_
---
---
---
---
---
during testing.
.0---
.HR
6%
.t
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
\
ACCESS
COVER
VOLTAGE
REGULATOR
7
CONNECTOR PLUG
ES-1763
FIGURE
8-9.
VOLTAGE REGULATOR CONNECTOR PLUG
(Pl)
8-1
2
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