Troubleshooting

TM 11-6140-203-14-3

5-4). Remove the fillercaps. Adjust the electrolyte level (para 5-6).

(3) Replace the fillercaps.

Test the performance of the battery as given in paragraph 5-5g.

5-8. Troubleshooting

The following procedures will aid in troubleshooting a defective battery. Visually inspect the battery to

determine whether the trouble is caused by loose connections (a below), corroded connections (b below),

electrical leakage (c below), or an incorrectly Installed cell (d below).

Loose Connections. If connections are loose,

proceed as follows:

(1) Clean the battery (para 4-7) and tighten terminal screws, using the proper torque valves (para 4-11).

(2) Discharge the storage battery (para 5-7c).

(3) Charge the battery as follows:

(a) Charge the battery, using constant-potential or constant-current method. Use table 5-1 to

determine the charging voltage for the constant-potential method. Refer to table 5-2 to determine the charging

current for the constant-current method.

(b) After charging, allow the battery to rest (para 5-4). Remove the fillercaps. Using distilled

water, adjust the electrolyte level by bringing the electrolyte level to not more than one-fourth inch above the

top of the plates (para 5-6).

(4) Test the performance of the battery as given in paragraph 5-5g.

Corroded Connections. if the cell terminals or the connector terminals are corroded, completely

disassemble and clean the battery as given in paragraph 5-9.

Electrical Leakage Test. Using the AN/USM-223, perform the electrical leakage test as described

in paragraph 4-10.

Reverse Polarity Position. If a cell has been installed in reverse polarity as determined when

performing an individual cell voltage test, proceed as follows:

(1) Discharge the battery (para 5-7c).

(2) Remove and reinstall the cell in the battery.

(3) Charge the battery (para 5-5s.6

(4) Capacity test the battery (para 5-5-g).

Troubleshooting Table. Table 5-5 is provided to aid in isolating troubles that occur in the battery.

Before following the procedures outlined in the troubleshooting table, perform the procedures given in a through

d above.

Table 5-5. Troubleshooting

5-9. Disassembly

A complete disassembly of the battery is required for any of the following defects: Defective cell or cells,

electrolyte leakage, electrical leakage, cell installed in reverse polarity, or defective battery case.

Disassemble the battery, as given in a through e below:

Discharge the battery as given in paragraph 5-7c

After completely discharging the battery, remove all terminal links by removing their screws and

associated washers

c. Remove all cells from the battery case as follows:

(1) Loosen all fillercaps to relieve any internal pressure.

(2) Fabricate a cell puller by using two terminal links bent at right angles and appropriate

nonconductive heavy cord or flat web material as shown in figure 5-5.

NOTE

Do not use wire or other conductive material. Use the cell terminal screws and

washers to secure the cell puller to the cell terminals and

5-8