Table 2-2. Generator Set Troubleshooting (Cont)
Malfunction
Probable cause
Corrective action
36.
Electric governor not
a.
Defective electric
a.
Isolate (para 7-2).
—
controlling set.
governor control
–
Adjust, repair or replace as
(Class I only)
unit .
required (para 7-2 and 7-4).
b.
Low hydraulic
b.
Isolate (para 14-14 and correct
pressure.
trouble. (para 14-15 and 14-16).
c.
Defective hydraulic
c.
Isolate (para 13-2).
actuator.
Repair or replace actuator
as required (para 13-3 thru 13-5).
37.
Generator sets will not
a.
Governor is not
a.
For a Class 1 set, Precise,
parallel and share
adjusted cor-
refer to paragraph 7-2.
real (kw) load.
rectly.
b.
Fuel injection
b.
For a Class 11 set, Utility,
—
pump is not
refer to paragraph 14-45.
adjusted pro-
perly.
38.
Generator sets wilI not
Exciter regulator system
Refer to paragraph 8-14 for correct
parallel and share re-
including the reactive
adjustment procedures.
active load.
load sharing potentio-
meter (R29) is not cor-
rectly adjusted.
NOTE
Additional troubleshooting procedures
are contained in Tables 8-1 and 14-1.
Change 5
2-19
