CASE AFX 8010 Fuses and Ralay

 

FUSES

Fuses protect circuits with thin pieces of metal and

wire which heat up and melt to open up the circuit

when too much current flows through them. The

combine fuse panel, 1, is located in the left rear

corner of the cab, behind a removable panel.

 

Fuses are used to protect the circuit from overload.

This can occur in the event of a short circuit or by

connecting equipment which demands a current

greater than the circuit is designed to carry.

 

There are several types of fuses, but they all consist

of a metal conductor which is capable of carrying a

limited current. If the specified current is exceeded

then the metal conductor will overheat, causing it to

melt and break. This will in turn cause an open circuit.

 

The rating of the fuse relates to the current that the

fuse can carry continuously.

 

If a fuse blows, it must be replaced with a fuse of the

correct rating, and if it blows again, then the cause

must be investigated.

 

A fuse may be tested by checking continuity across

the fuse on the two exposed terminals,