TM-5-3805-254-14-P-2

TRUCK, DUMP, 20 TON, 6X4, ON-OFF HIGHWAY 71,000 GVW, IHC MODEL F-5070 (CCE)

TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, GENERAL SUPPORT AND DEPT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS INFORMATION AND SUPPLEMENTAL MAINTENANCE INSTRUCTIONS)

JUNE 1980

TM-5-3805-254-14-P-2 - Page 277 of 894

TRUCK SERVICE MANUAL

ELECTRICAL

FUSE AND CIRCUIT BREAKER PANELS

DESCRIPTION

All chassis incorporate safety device to protect

electrical wiring and equipment from short circuits or

electrical overloads. These protective devices may be

fuses, circuit brakers or fusible links.

Fuses

Fuses are designed to pass a given amount of

current.

The current flow limit is indicated by the rating

of "Size" of the fuse (10 ampere, 14 ampere, etc.).

Exceeding this limit will cause the fuse to "blow" opening

the circuit.

After the cause of the overload is determined and

corrected, a new fuse must be installed in the circuit.

Do not replace a "blown" fuse with a fuse of higher

capacity. To do so may result in damage to electrical

components or wiring.

Where fuse failure is

encountered, correct the cause of the overload and

install a new fuse of the originally specified rating.

Fuses for most vehicle wiring circuits are grouped

together in a fuse panel (Fig.

1).

Some fuse panels

have removable fuse terminals which can be replaced if

damaged.