Generac Power Systems 53187 User Manual
Page 41
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PARTI
THE REVOLVING FIELD AC GENERATOR
1
SECTION 1.7- TROUBLESHOOTING
(UNITS WITH 10 INCH STATOR)
Problem 3- Generator Produces High Voltage at No-Load
TEST 14- CHECK
AC VOLTAGE
AND FREQUENCY
FREQUENCY
O.K.
VOLTAGE IS HIGH
i
TEST 9- CHECK
VOLTAGE
REGULATOR
BOTH
■ ARE-
HIGH
I VOLTAGE IS STILL HIGHi
TESTIS
- ADJUST
ENGINE
GOVERNOR
FREQUENCY & VOLTAGE,
ARE BOTH GOOD NOW
GO TO PROBLEM 2
STOP
TESTS
Problem 4- Frequency and Voltage Drop Sharply When Load is Applied
UNIT IS OVERLOADED
i
REDUCE LOAD TO
WATTAGE/AMPERAGE
CAPACITY OF UNIT
TEST 17- CHECK
CnD n\/Ptai rtAH
NOT
TEST 15-ADJUST
ENGINE
.O.K.—
STOP
TESTS
CONDITION
LOADED
GOVERNOR
PROBLEM STILL EXISTS
1
I TEST 18- CHECK
ENGINE POWER
1 AND CONDITION
REPAIR
ENGINE
^ AS
NEEDED
PAGE 1.7-3