TM 9-2320-269-20-1
ORGANIZATIONAL TROUBLESHOOTING
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
ENGINE
CRANKS BUT WILL NOT START
WARNING
Do not smoke or allow open flames or sparks nearby when performing battery maintenance. The mixture
of oxygen and hydrogen gases released from batteries is flammable and can explode causing serious
injury or death.
Do not touch ground when working on positive battery posts, clamps, or cables to avoid dangerous
sparks.
Lead-acid batteries contain sulfuric acid which can cause serious burns. Avoid contact with skin, eyes, or
clothing.
Step 1.
Inspect batteries (1), cables (2), and clamps (3) for corroded, loose, or damaged parts.
a. Lift latches (4), and remove battery box cover (5).
b. If battery cables (2) or clamps (3) are corroded or damaged, remove, clean, or
replace as needed, and install (page 2-414).
c.
If battery posts (6) are corroded or damaged, clean or replace batteries (1) (page 2-
421) as needed.
d. If cables (2) or clamps (3) are loose, tighten using 1/2-inch wrench.
Step 2.
Inspect starting motor (7) and wires (8) for corroded, loose, or damaged parts.
a. If starting motor (7) or terminals (9), (10), and (11), are damaged, replace star ting
motor (7) (page 2-288).
b. If starting motor terminals (9), (10), and (11), or wire terminals (12) are corroded,
remove wires (8), clean as needed, and install using 3/4-inch socket, 3/4-inch deep
socket, handle, and flat-tip screwdriver.
c.
If wires (8) are damaged, repair as needed (page 2-433).
d. If wires (8) or mounting screws (13) are loose, tighten as needed using 3/4-inch
socket, 3/4-inch deep socket, extension and handle, and screwdriver.
2-46
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