TM 5-3810-300-24 & P2
Battery Ground Check.
A check of the battery ground connection can be made to assure the negative battery cable has a "solid" ground
connection to the unit frame. Perform the check as follows:
1. Check that the negative battery cable is securely attached to the negative (-) battery terminal and the unit frame.
2. Connect the positive lead of a dc voltmeter to the unit frame close to the negative battery cable attach point.
A DC VOLTMETER WITH A 15-VOLT SCALE (MINIMUM) SHOULD BE USED FOR THIS CHECK.
Connect the negative lead of the voltmeter to i.e. negative (-) terminal on the battery.
Motor the engine with the starter. The voltmeter should indicate "zero".
If a voltage reading is indicated on the voltmeter, clean and tighten the unit ground connection.
Disconnect voltmeter leads from battery and unit frame.
BATTERY SET REMOVAL.
ASSURE CELL CAPS OF BATTERIES ARE SECURELY INSTALLED PRIOR TO BATTERY REMOVAL
KEEP BATTERIES UPRIGHT DURING REMOVAL OR INSTALLATION.
Disconnect positive (+) engine harness battery lead from positive (+) terminal of battery.
Disconnect battery paralleling cable from negative (-) and positive (+) terminals of respective batteries.
Disconnect negative (-) chassis ground cable from negative (-) terminal of battery.
Loosen attaching hardware and clamps securing batteries in battery compartment; remove batteries.
BATTERY SET INSTALLATION.
Position batteries in battery compartment; secure with clamps and attaching hardware.
Connect negative (-) chassis ground cable to negative (-) terminal of battery.
Connect battery paralleling cable to negative (-) and positive (+) terminals of respective batteries.
Connect positive (+) engine harness battery lead to positive (+) terminal of battery.