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TM-10-3930-609-12 Truck Fork Lift Electric Solid Rubber Tires 2 000 lbs Capacity 144 In. Lift Manual
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Motor Brush Replacement
TM 10-3930-609-12
ME 3930-609-12/3-15
Figure 3-15. Horn button.
(1) Put battery on charge again at the
finish rate, so cells gas for thorough mixing of
electrolyte.
Note. Never make a gravity adjustment on a cell
which does not gas freely on charge.
(2) Draw off electrolyte down to splash
cover from low reading cells. Slowly pour elec-
trolyte of 1.300 to 1.350 specific gravity in cell
to high lever (1/4 inch below filler neck).
Caution: Never use acid or higher speci-
fic gravity than 1.350.
(3) Wait twenty minutes for added electro-
ME 3930-609-12/3-14
lyte to become thoroughly mixed by gassing
charge and then read specific gravities. If the
Figure 3-14. Horn.
gravity of any cell is still below normal repeat
steps (1) through (3). Repeat as many times as
lyte at normal level and cells fully charged
necessary.
should be 1.265 to 1.285. This specific gravity
(4) Continue charging battery for one hour
is correct when the battery is delivered and will
at the finishing rate, after gravity has been ad-
not require adjusting during the lift of the bat-
justed.
tery unless electrolyte is actually lost out of the
(5) If the corrected specific gravity of any
battery.
cell is higher than normal (1.285) proceed as
follows:
b. Adjusting Specific Gravity. Acid or electro-
(6) As the battery charges, withdraw from
lyte should never be added to a cell without first
the cell a small amount of electrolyte and re-
being sure that charging will not restore the
place with water. Repeat at 20 minute intervals,
gravity. Give the battery a thorough equalizing
if necessary, until a 1.285 specific gravity reading
charge (para 3-46e). Charge should be con-
is obtained.
tinued until specific gravity when tested every
hour for three hours shows no further rise at
c. Adding Water to Battery. Add only dis-
any cell. If, after charge, gravity is still below
tilled water or chemically analyzed and approved
normal proceed as follows:
water from public drinking source. The proper
3-22

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