THRUSH AIRCRAFT INC - T660 TURBO THRUSH
AIRCRAFT MAINTENANCE MANUAL
10 - 3
B.
Fill each cell with 1.285 specific gravity sulfuric acid to bottom of split ring. Use only glass,
rubber or plastic materials for containing battery electrolyte fluid during servicing and wear
protective clothing and rubber gloves when handling electrolyte to prevent personal injury.
Use a solution of baking soda and water to neutralize any acid spilled on clothing, skin or
any damageable surface.
C.
Sway the battery from side to side to release any trapped air. Re-adjust the electrolyte as
necessary.
C.
Let battery sit unused for one hour.
E.
Check and re-adjust electrolyte level as necessary by adding more electrolytes to obtain
proper level as stated in procedure B.
F.
Install vent plugs tightly into each cell.
G.
Clean and neutralize any spilled electrolyte on battery.
H.
Charge battery until all cells are gassing freely and the charge voltage and specific gravity
of electrolyte are constant over three successive readings taken at one-hour intervals. (This
procedure may take 18 - 24 hours with a constant current charger.) During the period of
charging, the electrolyte temperatures shall be maintained between 60
°
F and 110
°
F
(15.6
°
C and 43.3
°
C). Charge rate is 3 amps. Reduce rate by 1/2 when cells start gassing.
** CAUTION **
Gasses given off by a battery under charging conditions are flammable.
I.
When the battery is completely charged, the specific gravity should read between 1.285
and 1.295. At this point, if electrolyte level needs to be adjusted, remove or add electrolyte to
proper level and recharge for one hour.
* NOTE *
For more detailed instructions, see Gill Service Manual.
Effective: 12/17/03
Summary of Contents for S2R-T660
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