Generac Power Systems MC - Manual (Page 25)

RESULTS:- Solenoid actuates, engine
does not crank............... Continue tests in Paragraph B
Solenoid does not actuate.•...Continue tests in Paragraph D
B. )- Set VOM to ”+DC” and to a scale greater than 12 Volts DC. Connect
the NEGATIVE (COMMON) test probe to ground. Connect the POSITIVE (+)
probe to the battery cable connection on the solenoid. Meter should in­
dicate approximately 12 Volts DC.
RESULTS: - Meter reads 12 Volts DC..... Continue tests in Paragraph C
Meter reads less than 12.... .Check for open or shorted wire
Volts DC (or loose connection) between
Battery and Starter Solenoid
C. )- Connect POSITIVE (+)'meter test probe to starter cable connection
on solenoid. Connect NEGATIVE (COMMON) probe to ground. Hold Stop/Start
Switch at START - meter should indicate approximately 12 Volts DC.
RESULTS:- Meter does not read
12 Volts DC............... ...Install new Starter Solenoid
Meter reads 12 Volts and..... Continue tests in DIAGNOSTIC
Solenoid checks good FLOW CHARTS
D. )- Set VOM to ”+DC” and to a scale greater than 12 Volts. Connect the
meter POSITIVE (+) test probe to one of the small terminals on the sol­
enoid. Connect the remaining probe to ground. Meter needle should read
approximately 12 Volts DC. With one probe'still connected to ground,
connect the remaining terminal to the other small terminal on the solen­
oid - meter should indicate approximately 12 Volts DC.
RESULTS:- Meter indicates 12 Volts......Continue tests
Meter does NOT read 12 Volts..Repeat Tests 1, 2 and 3. When
sure that these tests are good
and 12 Volts is not indicated
in Test 4.D., replace solenoid
TEST 5-STARTER MOTOR
Set VOM to ”-hDC” and to a scale
greater than 12 Volts DC. Conn­
ect VOM positive (4-) test probe
to the Starter terminal lug and
COMMON (-) test probe to frame
ground. Hold Stop/Start switch
at START. Meter should indicate
approximately 12 Volts DC and
starter motor should run.
Starter runs.................................Continue tests
Meter indicates 12 Volts DC,
Starter does not run........... ............ Replace Starter
Meter does not indicate 12 Volts........ Check Starter cable
2.2-3