Hudson 1955 Rambler, Technical & Service Manual

Page: 51 / 292

LOW BATTERY AND A LOW OR NO CHARGING RATE:
Check all wiring for loose connections,
frayed insulation, and high resistance
connections and correct any fault.
Make sure the generator operates correctly
without the regulator in the circuit. Remove
the "A" and "B" leads from the regulator and
connect an ammeter between them. Remove the
field lead from the regulator and while
operating at idle speed, touch the field lead
to the regulator base. Increase the speed
slowly, noting the charging rate. Do not
increase the output above the rated output
of the generator. If the generator out-
put will not build up, inspect the wiring
harness for shorts and opens and remove the
generator for an overhaul.
Connect an ammeter between the battery
lead and the regulator "B" terminal.
Connect the field lead to the regulator "F"
terminal and connect the armature lead to the
regulator "A" terminal. Connect a voltmeter
from the regulator "A" terminal to the
regulator base. Operate the generator at a
medium speed and perform the following tests:
10
T E C H N I C A L S E R V I C E M A N U A L
OPERATION EFFECT CAUSE AND REMEDY
Connect a headphone from the
regulator field terminal to the
base and hold the current regulator
contacts closed. A steady beat should be heard.
An unsteady beat is heard.
No beat is heard. Voltage regulator operating.
Reset regulator. Dirty or sticking
contacts. Clean contacts.
Inoperative voltage regulator
unit. Remove regulator for
an overhaul.
OPERATION EFFECT CAUSE AND REMEDY
Read the voltmeter.
Remove the regulator cover and
with the generator operating at
a medium speed, hold the cir-
cuit breaker contacts closed.
Run the generator at idle speed
and momentarily connect a
jumper from the "F" terminal to
the regulator base.
Operate at a medium speed with
the jumper removed. Remove the
regulator cover and hold the
voltage regulator contacts
closed.
Voltage should build up.
Voltage does not build up.
Ammeter should indicate charge.
No generator output.
Voltage should build up.
Voltage does not build up.
Voltage should build up.
Voltage does not build up.
Open series circuit. Regulator
out of adjustment, field cir-
cuit open, grounded series
circuit.
Open circuit breaker shunt
winding, incorrect setting of
circuit breaker or dirty con-
tacts.
Clean contacts and reset cir-
cuit breaker. If there is still
no charge, the series windings
are open and the regulator
should be removed for an over-
haul. If the circuit breaker
cannot be set, the shunt coil
is open and the regulator
should be removed for an over-
haul.
Open field circuit or regulator
out
of adjustment. Grounded series
circuit. Remove regulator
for an overhaul.
Voltage regulator contacts
burned or dirty or incorrect
regulator setting. Clean the
contacts and adjust the regula-
tor. Test again. If the volt-
age still does not build up,
see test operation below.