TM 5-3805-280-24-1
Sub-System Diagnostics
1 POWER CIRCUIT DIAGNOSTIC PROCEDURES
IMPORTANT: Do not disconnect electrical connectors while the engine is running. Damage to Engine and
Pump Controller or other components may result. Disconnect connectors only when instructed during a
test or check.
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BATTERY (G1, G2)
Measure battery voltage by connecting a voltmeter to (-)
YES: Batteries are OK.
VOLTAGE CHECK
negative battery terminal grounded to frame and (+)
Go to next check.
9015
positive battery terminal connected to machine harness.
15
NO: Batteries are
4
undercharged. Charge
Is 24 to 28 volts measured?
batteries.
T7487AF
UN20MAR91
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BATTERY POWER 40
Disconnect fusible link from battery relay.
YES: Fusible link is OK.
AMP FUSIBLE LINK (F21)
Check wiring harness.
CHECK
Connect ohmmeter to both ends of fusible link.
NO: Fusible link has
Is continuity measured?
failed. Replace fusible
link.
T109319 UN28APR97
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