TM 9-2320-387-24-l
STARTER CIRCUIT
KNOWN INFO
ENGINE DOESN7
CRANK AT 200 RPM
POSSIBLE
PROBLEMS
BATTERIES
STARTER
NEUTRAL SAFETY
SWITCH
CABLESWIRING
ENGINE MECHANICAL
ROTARY SWITCH
PCB
KNOWN INFO
ENGINE CRANKS SLOWL’
POSSIBLE
PROBLEMS
BATTERIES
STARTER
ENGINE MECHANICAL
CABLES/CONNECTIONS
KNOWN INFO
BATTERY VOLTS OK
STARTER OK
POSSIBLE
PROBLEMS
WEAK BATTERIES
ENGINE MECHANICAL
CABLES/CONNECTORS
STARTER
DOES THE ENGINE CRANK AT
ALL?
DIAGNOSTIC FLOWCHART
-
r OPTTONS
LISTEN.
REASON FOR QUESTION
If the engine cranks, then the
rotary switch, neutral safety
switch and PCB are all working.
IS THE BATTERY VOLTAGE
23-25 VOLTS?
r OPTIONS
1. STEIICE-R TEST 67
(Page 2496)
2. MULTIMETER
REASON FOR QUESTION
If batteries are weak, they
can’t provide enough current
to crank the engine property.
OR CHECK EACH
IS THE BAlTERY VOLTAGE AT
LEAST 18.5 VOLTS DURING
CRANKING?
.
;T OPTIONS
1. STWCE-R
TEST 67 (Page 2496
2. MULTIMETER
REASON FOR QUESTION
Batteries must be able to
maintain voltage or the engine
won’t crank.
1
1
2-254
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