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If problem involves ac output – Guardian Technologies 5209 User Manual

Page 30

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The “Flow Charts” in this section may be used in

conjunction with the “Diagnostic Tests” of Section 6.

Numbered tests in the Flow Charts correspond to

identically numbered tests of Section 6.

Problems 1 through 5 apply to the AC generator only.
Beginning with Problem 5, the engine DC control sys-

tem is dealt with.

section 5
tRoublesHooting FloWcHaRts

Page 28

GO TO PROBLEM 1

(BELOW)

GO TO PROBLEM 2

GO TO PROBLEM 2

GO TO PROBLEM 3

GO TO VOLTAGE

REGULATOR

ADJUSTMENT,

PAGE 11

TEST 1 - CHECK NO

LOAD VOLTAGE &

FREQUENCY

If Problem Involves AC Output

VOLTAGE &

FREQUENCY BOTH

HIGH OR LOW

FREQUENCY GOOD -

ZERO OR RESIDUAL

VOLTAGE

ZERO VOLTAGE AND

ZERO FREQUENCY

FREQUENCY GOOD -

VOLTAGE HIGH

OR

VOLTAGE LOW

NO-LOAD VOLTAGE &

FREQUENCY GOOD -

VOLTAGE/FREQUENCY

FALLS OFF UNDER LOAD

INTROdUCTION

Problem 1 - Voltage & Frequency Are Both High or Low

TEST 5 - CHECK

STEPPER MOTOR

CONTROL

GO TO VOLTAGE

REGULATOR

ADJUSTMENT,

PAGE 11

FREQUENCY IS GOOD,

BUT NO-LOAD

VOLTAGE IS HIGH

OR VOLTAGE

IS LOW

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