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 TM 55-1905-222-14
4-13
ADJUST VOLTAGE REGULATOR
The voltage regulator setting man be changed from the factory established value in order to accommodate a special
operating situation. The most desirable setting is the one that allows the alternator to maintain a fully charged battery
with minimum water usage.
INITIAL SETUP
Tools:
Equipment Conditions:
Tool Kit, Mechanic's, Rail
All power off.
and Marine
General Safety Instructions
P/N 2500-553-0142
Carefully check all circuit
connections to eliminate
loose wires prior to adjusting
the voltage regulator.
ADJUSTMENT
1.
SET UP VOLTAGE REGULATOR FOR ADJUSTMENT.
a.
Remove voltage regulator ( 1 ) to gain access to its
rear(refer to para 4-14).
b.
Remove voltage adjustment access screw (2) from
rear of voltage regulator (1).
c.
Set up multimeter (0-50 v, 0-100 amp scales) and
vessel electrical system as shown.
d.
Start up the engine served by the voltage regulator
requiring adjustment. Operate at 800 rpm for one-
half-hour.
NOTE
The voltage regulator incorporates temperature compensating
circuitry that automatically provides a slightly higher charging
voltage in cold weather and a lower charging voltage in hot weather.
The regulator should be brought to operating temperature prior to
final adjustment.
Change 2
4-27
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