TM 3-4230-209-20&P
2-20
TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
PUMP UNIT (CONT)
2. GASOLINE ENGINE DOES NOT KEEP BATTERY CHARGED.
Step 7. Check at the circuit breaker (CB1) terminals to ground for at least
28 volts.
a. If multimeter indicates 28 vdc or more, do the following in
order.
(1) Clean corrosion from battery terminals.
(2) Tighten loose connections at battery, ground, or on
engine starter.
(3) Replace battery or battery cables.
b. If multimeter indicates less than 28 vdc, then test engine
mounted alternator system (refer to TM 5-2805-259-14).
Refer to maintenance in TM 5-2805-259-14.
3. GASOLINE ENGINE DOES NOT INDICATE CHARGE/DISCHARGE ON
Step 1. Make sure circuit breaker (1) is not tripped.
Reset circuit breaker.
Step 2. With multimeter check both terminals to ground at the
circuit breaker for 28 vdc.
a. If multimeter indicates voltage on one terminal
but not the other terminal, replace circuit
breaker.
b. If multimeter indicates voltage at both termi-
nals, replace ammeter.
c. If multimeter indicates no voltage at circuit
breaker, shut engine down and notify interme-
diate direct support maintenance.
