1.
Loosen attaching bolts (2) with washers
(3) for battery cover (1) at left side of
machine, and remove the cover.
2.
Remove protective rubber cover (4) for
battery.
3.
Remove battery cell caps (5) and visually
inspect electrolyte (acid) level. Proper level
is 10 to 15 mm (0.4 to 0.6 inch) above cell
plates.
4.
Clean vent of battery caps (5) and tighten
cap (5) securely.
5.
Attach protective rubber cover (4) with nut
(1) and washer (2).
6.
Tighten bolts (2) with washers (3), and
install battery cover (1).
A: Battery
B: Upper
C: Lower
D: Cell Plates
Charge
20C degrees
(68F degrees)
0C degrees
(32F degrees)
-10C degrees
(14 degrees)
100 %
90 %
80 %
75 %
1.31
1.29
1.28
1.27
1.29
1.28
1.26
1.25
1.28
1.26
1.25
1.24
4
A.1 Checking Battery Liquid Level
-Clean battery terminal and apply grease or commercial lube oil rust preventive spray.
-Call in licensed specialty company for the disposal of used battery.
-Be careful not to use the old battery together with new battery. It may reduce the service life of
battery. Therefore replace two batteries together with new ones if required to replace.
A.2 Measuring Specific Gravity of Battery Liquid
Since the specific gravity of battery liquid varies with respect to the liquid temperature, keep the
specific gravity within the range specified in the table.
When the specific gravity is lower than the lower limit, it is necessary to charge the battery.
Ambient Temperature
Do not measure the specific gravity of battery immediately after operation, but measure it at ambient
temperature.
[
4. MAINTENANCE
]
4-37
Copyright © 2015 Kobelco Construction Machinery Co.,Ltd. All rights reserved. [S2YF00022ZE01] [0731CsCshWbYs]