Engine not running or running at slow
Engine running fast enough to make
idle.
generator* produce.
(1)
(1)
DEAD
OR
DISCONNECTED
DISCONNECTED METER.
ENGINE
BATTERY.
DISCONNECTED OR
COULD NOT RUN WITH DEAD OR
BADLY CONNECTED METER.
DISCONNECTED
BATTERY
UNLESS
CIRCUIT WAS COMPLETED AROUND
BATTERY.
(2)
VERY LOW BATTERY CHARGE.
(2) (3)
ENGINE MIGHT NOT START.
WHEN METER POINTER STAYS BELOW
13.3 WITH THE ENGINE RUNNING FAST
(3)
ENOUGH TO OPERATE GENERATOR, IT
LOW
BATTERY
CHARGE.
SHOWS THAT GENERATOR IS NOT
CONSTANT READING IN THIS
OPERATING OR VOLTAGE REGULATOR
AREA WOULD INDICATE NEED FOR
IS OUT OF ADJUSTMENT, OR THAT
CHECK ON GENERATOR AND
CURRENT
BEING
DRAWN
FROM
VOLTAGE REGULATOR.
BATTERY BY LIGHTS, HEATER FAN, OR
OTHER LOAD, EXCEEDS GENERATOR
(4)
OUTPUT.
WELL-CHARGED BATTERY. THIS
INDICATES A GOOD BATTERY AND
ALSO THAT GENERATOR AND
VOLTAGE
REGULATOR
ARE
OPERATING PROPERLY.
(4) (5)
WHEN ENGINE IS STARTED, POINTER
(5)
MAY STAY IN THIS AREA TEMPORARILY
THE POINTER MIGHT REMAIN IN
BUT SHOULD GRADUALLY RISE ABOVE
THIS POSITION TEMPORARILY
13.3 AS GENERATOR REACHES NORMAL
WHEN THE ENGINE HAS BEEN
OUTPUT.
STOPPED AFTER CONSIDERABLE
USE, DUE TO A "SURFACE
CHARGE" IN THE BATTERY. TO
GET A CORRECT READING, TURN
ON HEAD LIGHTS FOR A FEW
MINUTES.
(6)
(6) (7)
THIS IS THE AREA IN WHICH THE
UNDER NORMAL CONDITIONS, A
POINTER
SHOULD
BE
WHEN
12V BATTERY IS FULLY CHARGED
GENERATOR, VOLTAGE REGULATOR
AT 12.8V. A SLIGHTLY HIGHER
AND BATTERY ARE ALL IN GOOD
READING MAY OCCUR UNDER THE
CONDITION AND WORKING PROPERLY.
CONDITIONS OUTLINED-IN NO. 5
BUT, GENERALLY SPEAKING, ANY
(7)
READING ABOVE 12.8 WHEN THE
WHEN THE POINTER GOES ABOVE 15.2,
ENGINE IS STOPPED IS NOT A
THE VOLTAGE REGULATOR IS SET TOO
TRUE READING.
HIGH OR IS JAMMED AND CONTINUED
OPERATION OF THE ENGINE WILL BURN
NOTE: THE WORD GENERATOR
OUT THE BATTERY.
REFERS
TO
BOTH
GENERATOR
AND
ALTERNATOR SINCE BOTH
REQUIRE
THE
SAME
ME 3810-288-12/2-37
Figure 2-33. Voltmeter indications.
2-29
