New Holland 9090X, Service Manual

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INTRODUCTION
PROTECTING THE ELECTRONIC/ELECTRICAL SYSTEMS DURING CHARGING OR WELD-
ING
To avoid damaging the electronic/electrical systems, always follow the safety instructions below:
1. Never make or break any of the charging circuit connections, including the battery connections, when the engine
is running.
2. Never short any of the charging components to ground.
3. Always disconnect the ground cable from the battery before arc welding on the machine or any header attached
to the machine.
• Position the welder ground clamp as close to the welding area as possible.
• If welding in close proximity to a computer module, the module should be removed from the machine.
• Never allow welding cables to lay on, near, or across any electrical wiring or electronic component while welding
is in progress.
4. Always disconnect the negative cable from the battery when using a battery charger to carry out charging proce-
dures on the machine.
NOTICE: If welding has to be carried out on the machine or the header (if it is attached), disconnect the battery ground
cable from the machine battery. The electronic monitoring system and charging system will be damaged if this is not
done.
Remove the battery ground cable. Reconnect the cable when welding is completed.
WARNING
Battery acid causes severe burns. Batteries contain sulfuric acid. Avoid contact with skin, eyes or clothing.
Antidote - EXTERNAL: flush with water. INTERNAL: drink large quantities of water or milk. Follow with milk
of magnesia, beaten egg or vegetables oil. Call physician immediately. EYES: flush with water for 15 minutes
and get prompt medical attention.
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