Nippon FB10P, Руководство по ремонту

Страница: 210 / 230

203
10e
BATTERY
<How to use the hydrometer>
1. Open the cap of the battery cell.
2. Insert the tube of the hydrometer into the cell and suck
the electrolyte.
3. Read the scale at the surface of the sucked electrolyte.
4. Read the specific gravity of all cells in turn.
The difference of the specific gravity of cells should be
less than 0.05.
5. If the difference is more than 0.05, carry out the
equalizing charge to the battery.
6. After finishing the equalizing charge, check and
compare the specific gravity of each cell.
If the difference is still more than 0.05, consult the
battery supplier for inspection.
l
MEASUREMENT OF
SPECIFIC GRAVITY
1.330
1.290
1.280
1.270
1.260
1.250
1.240
1.230
1.220
1.210
1.200
1.190
1.180
1.170
-20
1.300
1.150
1.190
1.210
1.230
1.250
1.270
1.290
1.310
1.170
1.160
1.150
50 40 30 20 10 0 -10
Specific gravity at 20
Actual reading of hydrometer
Temperature
< How to convert the specific gravity to the
standard value at 20 >
2. Measure specific gravity of electrolyte.
3. Measured specific gravity shall be converted to the
value at 20
[Conversion formula]
S20=St+0.0007(t-20)
S20 : Specific gravity converted to 20 .
St : Measured specific gravity.
t
: Temperature of electrolyte.
l
CONVERSION
Hydrometer Thermo
meter
Measurement of specific gravity of electrolyte in each cell
4
2
l
Use thermometer to measure
CAUTION
1. Measure temperature of electrolyte.
NOTE
The specific gravity should be converted to the value
at 20
when judging the battery condition.
1. Keep dry. When they get wet, clean with a dry cloth or
blow out with compressed air.
2. If they are rusted, clean with a wire brush or a sand paper.
1. Turn the vent plug counter-clockwise to remove.
2. Clean it with a neutral detergent.
3. Securely fasten the vent plug on the cell after cleaning.
Cells, connectors and terminals
4
1
Cleaning vent plug
4
2
NOTE
If the vent plug is damaged, replace the plug
comp. with new one.
10f-2-2. Battery - Cleaning
https://www.forkliftpdfmanuals.com/