AMMETER INOPERATIVE (Cont)

TM 9-2320-285-24-1

2-19.

INSTRUMENT PANEL TROUBLESHOOTING (CONT)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

8. AMMETER INOPERATIVE (Cont)

Step 2.

Disconnect ammeter electrical leads (para 2-26e).

Apply 15 amperes current through ammeter terminals.

a. If ammeter doesn't indicate 13-17 amperes, replace (para 2-26e).

b. If ammeter indicates 13-17 amperes, go to step 3 below.

Step 3.

Check level of electrolyte in batteries.

WARNING

Battery electrolyte is toxic and corrosive. Use protective goggles and gloves when

performing the following. Avoid contact with skin, eyes, clothes, and don't breathe vapors.

a. If electrolyte level is below plates of any cell, add distilled water to bring level 3/8 inch above

b. If electrolyte level is above plates of all cells, go to step 4.

Step 4.

Check for loose battery cables and broken battery terminals.

a. If battery cables are loose, tighten (paragraph 2-34a).

b. If battery terminals are broken, replace (para 2-34a).

c. If battery cables and terminals are okay, go to step 5 below.

Step 5.

Inspect battery tops and terminals for corrosion.

a. If corrosion is observed, remove.

b. If terminals are okay, refer to para 2-17, Malfunction 2.

9. DASH LIGHTS AND GAGE LIGHTS INOPERATIVE

Step 1.

Pull out headlight switch to first detent position.

Watch gage and dash lights.

Rotate headlight switch from full counterclockwise position to full clockwise position.

a. If all dash and gage lamps are inoperative, go to step 3 below.

b. If one or more dash and gage lamps light, go to step 2 below.

2-178