Problem 2 - Voltage & Frequency Are Both High Or Low; Problem 3 - Excessive Voltage/Frequency Droop When Load Is Applied; Problem 4 - Generator Produces High Voltage At No-Load - DeWalt DXGN4500 Manual

Section 1 Capacitive Discharge (Brushless)
Problem 2 – Voltage & Frequency Are Both High or Low
TEST 30 – CHECK & ADJUST
ENGINE GOVERNOR
Problem 3 – Excessive Voltage/Frequency Droop When Load is Applied
Problem 3 – Excessive Voltage/Frequency Droop When Load is Applied
TEST 10 – CHECK
LOAD VOLTAGE &
FREQUENCY
GOOD
END TEST
Problem 4 – Generator Produces High Voltage at No-Load
TEST 1 – CHECK
NO-LOAD VOLTAGE
AND FREQUENCY
FREQUENCY O.K.,
BUT VOLTAGE HIGH
TEST 6 –
CHECK
CAPACITOR
BAD
REPLACE
4
NO-LOAD FREQUENCY & VOLTAGE GOOD BUT
THEY DROOP TO MUCH WHEN LOAD IS APPLIED
BAD
GO TO PROBLEM 23
FREQUENCY TEST 30 – CHECK & ADJUST
HIGH
FREQUENCY O.K., BUT VOLTAGE IS STILL HIGH
FREQUENCY GOOD, LOW OR
RESIDUAL VOLTAGE
FREQUENCY IS GOOD BUT
NO-LOAD VOLTAGE IS HIGH
TEST 11 – CHECK
LOAD WATTS &
AMPERAGE
OVERLOADED
TEST 30 – CHECK
& ADJUST
GOOD ENGINE
GOVERNOR
ENGINE GOVERNOR
GO TO
PROBLEM 1
GO TO
PROBLEM 3
GO TO PROBLEM 1,
TEST 6 – CHECK
CAPACITOR
NOT OVERLOADED
REDUCE LOAD
FREQUENCY AND
VOLTAGE O.K.
GO TO "PROBLEM 1",
TEST 7 – TEST BRUSHLESS
EXCITATION WINDING
Diagnostic Repair Manual
STOP
TESTS