Hypertherm Freedom 38 PPA, Руководство по обслуживанию

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Freedom 38 PPA Service Manual 809010 69
2 – Routine Maintenance
Every 3 months (or 500 operating hours)
 Check the battery and cable connectors , below
 Change the oil and oil filter in the engine on page 70
Check the battery and cable connectors
1. Turn OFF the system. Make sure the power switch on the front panel is in the OFF ( O ) position.
2. Remove the service panel on the plasma side of the system.
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.
 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. See Jump-start the battery on
page 32.
 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.