California Air Tools 3010 Service Manual download pdf (Page 436)

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101

17-16 ELECTRICAL SYSTEM

Precautions

There are a number of important precautions that are

musts when servicing electrical systems. Learn and ob-

serve all the rules below.

○

Do not reverse the battery cable connections. This will

burn out the diodes in the electrical parts.

○

Always check battery condition before condemning other

parts of an electrical system. A fully charged battery is a

must for conducting accurate electrical system tests.

○

The electrical parts should never be struck sharply, as

with a hammer, or allowed to fall on a hard s urface. Such

a shock to the parts can damage them.

○

To prevent damage to electrical parts, do not disconnect

the battery cables or any other electrical connections

when the main s witch is ON, or while the engine is

running.

○

Because of the large amount of current, never keep the

main switch turned to the start position when the starter

motor will not turn over, or the current may burn out the

starter motor windings.

○

Do not short the cables that are directly connected to the

battery positive (+) terminal to the chassis ground.

○

Troubles may involve one or in some cases all items.

Never replace a defective part without determining what

CAUSED the failure. If the failure was brought on by

some other item or items, they too m ust be repaired or

replaced, or the replacement part will soon fail again.

○

Make sure all connectors in the circuit are clean and tight,

and examine wires for signs of burning, fraying, etc. Poor

wires and bad connections will affect electrical system op-

eration.

○

Measure coil and winding resistance when the part is cold

(at room temperature).

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California Air Tools 3010 Service Manual Page 436

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