Tennant 285, Руководство оператора

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MAINTENANCE
285 MM191 (12---89)
3-34
ELECTRICAL SYSTEM
BATTERY
The battery used in the machine is a low
maintenance battery. It has been constructed with
special materials and has extra electrolyte to reduce
or eliminate maintenance. Its design reduces
electrolyte loss and contamination. Do not add water,
remove the battery vent plugs, or check the battery
specific gravity. For specific instructions, see the
battery label.
The battery is rated at 12 V, 475 ccA. It is located
under the operator foot plate. When removing
battery cables, remove the negative (---) cable before
the positive (+) cable.
A
B
00586
BATTERY
A. Battery
B. Floor Plate
Do not allow the battery to remain in discharged
condition for any length of time. Do not operate the
machine if the battery is in poor condition or
discharged beyond 80%, specific gravity below
1.120.
Clean the top surface and the terminals of the
battery periodically. Use a strong solution of baking
soda and water. Brush the solution sparingly over the
battery top, terminals, and cable clamps. Do not
allow any baking soda solution to enter the battery.
Use a wire brush to clean the terminal posts and the
cable connectors. After cleaning, apply a coating of
clear petroleum jelly to the terminals and the cable
connectors. Keep the top of the battery clean and
dry.
Keep all metallic objects off the top of the battery, as
they may cause a short circuit. Replace worn or
damaged wires.
The electrolyte level in regular nonsealed batteries
can be checked. It must always be above the battery
plates. Add distilled water to maintain solution at the
correct level above the plates, but do not overfill.
Never add acid to batteries, only water. Keep vent
plugs firmly in place at all times, except when adding
water or taking hydrometer readings.
WARNING: Battery acid causes severe
burns. Avoid contact. Wash immediately
and get medical attention if contact occurs.
If when checking battery specific gravity, one or
more battery cells tests lower than the other battery
cells, (0.050 or more) the cell is damaged, shorted,
or is about to fail.
NOTE: Do not take readings immediately after adding
water--- ---if the water and acid are not thoroughly
mixed, the readings may not be accurate. Check the
hydrometer readings against this chart:
SPECIFIC GRAVITY BATTERY
at 80
_
F (27
_
C) CONDITION
1.260 --- 1.280 100% charged
1.230 --- 1.250 75% charged
1.200 --- 1.220 50% charged
1.170 --- 1.190 25% charged
1.110 --- 1.160 Discharged
NOTE: If the readings are taken when the battery
electrolyte is any temperature other than 80
_
F (27
_
C), the reading must be temperature corrected.
To determine the corrected specific gravity reading
when the temperature of the battery electrolyte is
other than 80
_
F (27
_
C):
Add to the specific gravity reading 0.004
(4 points) for each 10
_
F (6
_
C) above
80
_
F (27
_
C).
Subtract from the specific gravity reading 0.004
(4 points) for each 10
_
F (6
_
C) below 80
_
F
(27
_
C).