Baroness LM551, Руководство по обслуживанию, Страница: 92 / 213

1 (-) cable (black)
2 (+) cable (red)
Installing a New Battery
Install the new battery with the correct
polarities and firmly secure the battery
with the mounting bracket.
Remove the protection caps attached to
the terminals of the new battery.
Firmly secure the positive cable to the
positive terminal.
Firmly secure the negative cable to the
negative terminal.
2
3
1
4jes59-013
Replacement of Battery_002
1 (+) cable (red)
2 (+) Terminal
3 (-) Terminal
Measurement of Battery Specific Weight
Specific weight of electrolyte tends to reduce
in linear proportion with the discharged
electrical quantity of the battery and so
checking the specific weight of electrolyte with
a hydrometer can tell the remaining capacity
of the battery.
Temperature compensation is required for the
specific weight measured with a hydrometer.
The standard temperature for the specific
weight of battery electrolyte is 20 ° C, and the
specific weight increases or decreases by
0.0007 in accordance with the temperature
change of 1 ° C. Thus it can be compensated
by the following formula.
1.
2.
3.
4.
S20 = St + 0.0007(t - 20)
1
2
3
lyp58z-002
Measurement of Battery Specific Weight_001
1 Specific weight converted for 20 ° C
2 Measured specific weight
3 Fluid temperature at measurement
Specific weight and remaining capacity of battery
Specific weight
(20 ° C)
Discharged
electrical quantity
(%)
Remaining
capacity (%)
1.28 0 100
1.24 25 75
1.20 50 50
1.16 75 25
1.12 100 0
Measurement of specific weight of 12V
battery
Check all the cells after charge.
Replace the battery when the specific
weight is 1.225 or less, or gap of that
between each cell is 0.05 or more.
1
lyp58z-001
Measurement of Battery Specific Weight_002
1 Cell
1.
2.
LM551
Electrical System
Page 5-6
General Inspection and Repair