Yamaha CE50T Service Manual page 177

SIGNAL SYSTEM
Battery fluid specific gravity inspection: oRecharge battery.
1. Remove caps.
2. Inspectspecific gravity of allcell using Bat- Low specific Charging Current:
tery Hydrometer. Iravity (voltage) 0.4 amps/10 hrs
_ NOTE:
Battery electrolyte is poisonous and Replace the battery if:
dangerous, causing severe burns, etc. It oBattery voltage will not rise to a
contains sulfuric acid. Avoid contact with specific value or bubbles fail to
skin, eyes or clothing, rise even after many hours of
Antidote: EXTERNAL-Flush with water, charging.
INTERNAL-Drink large quantities of water ®Sulfation of one or more cells oc-
or milk. Follow with milk of magnesia, curs, as indicated by the plates
beaten egg, or vegetable oil. Call a physi- turning white, or an accumula-
clan immediately, tion of material exists in the bot-
Eyes: Flush with water for 15 minutes and tom of the cell.
get prompt medical attention. Batteries oSpecific gravity readings after a
produce explosive gases. Keep sparks, long, slow charge indicate on cell
flame, cigarettes etc., away. Ventilate to be lower than the rest.
when charging or using in an enclosed ®Warpage or buckling of plates or
space. Always shield your eyes when insulators is evident.
working near batteries.
KEEP OUT OF REACH OF CHILDREN.
Specific Gravity:
1.2804-0.01 at 20°C (68°F)
If there is not Battery Hydrometer, check bat-
tery voltage using Pocket Tester (YU-03112).
1. Remove battery.
2. Set the tester selector to "DC20V"
position.
3. Connect tester leads to battery terminals.
Tester ( + ) lead-_( + ) terminal
Tester (-) lead--*(- ) terminal
--_ Battery Voltage:
12V or more
'_,/lz OK
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