Battery Maintenance; Welding - Toro 007 Maintenance Manual

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Working on live components
If the component must be live during the work, another worker must be standing
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by to cut off voltage at the emergency or main switch should an emergency
situation occur. Follow electrical safety regulations.
Use a red-and-white safety chain and warning signs to encircle the working area.
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Use only insulated tools.
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Observe special caution.
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2.3. Battery maintenance

Always wear eye protection, protective overalls, and protective gloves when
servicing batteries.
Always disconnect the negative (-) pole first, then the positive (+) pole. Always
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connect the positive pole (+) first, then the negative (-) pole.
Reversing battery polarity can result in personal injury caused by sudden
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discharge of electrolyte from the battery vents and/or the sudden rupture of the
battery case due to explosion of internal hydrogen gas.
To prevent sparking when connecting a battery charger, disconnect the charger
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supply cord or switch the charger off before connecting the charging wires to the
battery terminals. Open the battery's cell caps slightly during charging to allow the
gases generated to escape.
The acid in the battery can burn the skin, eats holes in clothing, and can cause
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blindness if it gets in the eyes. If you get battery acid on your skin, flush the area
at once with water. Use sodium bicarbonate to neutralize the acid if it gets in the
eyes. Flush the eyes with water, and call a doctor.
When servicing batteries, remember that lead-acid batteries generate oxygen and
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hydrogen during charging and discharging, which form a highly explosive mixture.
A spark or an open flame can cause an explosion. If necessary, ventilate the battery
compartment properly before disconnecting or connecting the cables.
To prevent explosion, the electrolyte level must be maintained and checked
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regularly. Add distilled water, if required, before starting -- and never immediately
after use. With a high enough electrolyte level, the cells have less space for gases.
Use a flashlight when checking electrolyte levels, never an open flame.
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The battery terminals should never be shorted, as sparks can cause the battery
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to explode.
Do not test electrical devices by making contact with the battery terminal.
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2.4. Welding

Before starting to weld, determine the material to be welded and select an appropriate
welding method and fillers. Contact SANDVIK TAMROCK Service, if necessary.
Do not repair steering equipment by welding.
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Welding must be left to qualified personnel.
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Before electrical welding, the main switch must be disconnected. Also, Remote
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Control equipment (optional) must be disconnected.
MAINTENANCE AND LUBRICATION
TKU--- C 01140--- 1 EN 0404