Hypertherm Freedom 38 PPA, Руководство по обслуживанию

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Freedom 38 PPA Service Manual 809010 33
1 – Troubleshooting
This system requires a 12 VDC battery with a capacity of 750 cold cranking amperes (CCA).
If the battery is severely discharged, the alternator may not be able to fully recharge the battery, even after jump-starting.
In this case, fully charge the battery to the correct voltage with a battery charger (with the engine turned off), or install a
new battery. See
Replace the battery on page 89.

Always dispose of old batteries in compliance with local and national regulations.
WARNING!
RISK OF FIRE OR EXPLOSION – WEAR PROTECTIVE CLOTHING
 Turn OFF the engine before performing any battery checks or maintenance.
 Avoid contact with sulfuric acid from the engine’s battery. It can cause serious injury
if it comes in contact with eyes or skin.
 Always wear protective glasses, gloves, and clothing when servicing the battery.
 Wash your hands thoroughly after touching the battery and its connectors.
 Examine the battery regularly to make sure:
 All electrical connections are clean and secure. Loose connections can cause
sparks that result in a fire. See Check the battery and cable connectors on
page 69.
 None of the electrical wires are frayed. Replace any frayed wires before starting
the engine.
 When the battery is charged or discharged, an explosive chemical change occurs.
Avoid all conditions that can ignite this explosive gas:
 Keep any open flames or sparks away from the top of the battery.
 Do not smoke cigarettes near a battery that is being charged.
 Never place a metal object across the battery’s terminal posts to check its
charging status. Instead, use a voltmeter or hydrometer.
 Never charge a frozen battery.
 Never charge a battery in an enclosed room that lacks proper ventilation.
 Never disconnect any charging unit circuit or battery circuit cable from the
battery while it is being charged. Doing so can produce dangerous sparks.
 Apply the cable connections correctly if you jump-start the battery. Attach the
negative (-) ground cable last, and remove it first.
 Always dispose of old batteries in compliance with local and national regulations.
 Examine the chassis ground strap connection regularly. Without a solid ground
strap connection, electrical discharge can damage the engine and electrical system.