10
in the following situation, i.e. equalizing charge.
a. The “lag-behind” batteries--- batteries with a voltage lower than that of the other batteries in the charging and
discharging process and the batteries having been repaired for failure. (When equalizing charge is conducted, the
positive and negative poles of the “lag-behind” battery should be respectively connected with the positive and
negative ends of the charger, the DC power supply, and the charge should be conducted independently.).
b. Equalizing charge should be conducted for the batteries in normal use every 2-3 months.
c. Equalizing charge should be conducted for the batteries that have not been used for a long period of time before
use.
8.2.4 Equalizing charge
a. Charge with a 4A current.
b. When the charge voltage reaches 31.2V (12
×
2.6V = 31.2V) and air bubbles occur in the electrolytic solution,
the current should be reduced by 50% (2A) and continue to charge.
c. When the batteries are fully charged, stop charging for 0.5 hour and charge again with a 1A current for one more
hour.
d. Stop charging for another 0.5 hour and charge with a 1A current for another one hour.
e. Repeat according to item d till air bubbles occur violently in the batteries once the charger is switched on.
8.3 Storage
8.3.1 Batteries should be stored in a clean, dry and well ventilated warehouse with a temperature of 5-40
℃
. The valid
shelf life is 2 years. The batteries should be kept according to the following requirements during storage:
a. No direct sunlight on the batteries and at least 2m away from heat source.
b. Avoid contacting with any harmful substances. No metallic matters are allowed to drop into the batteries.
c. The batteries should not be placed upside down and should not be hit mechanically or heavily pressed.
d. The batteries must not be stored with electrolytic solution. When it is required in special situation that the
batteries must be stored with electrolytic solution, the batteries should be fully charged and the density and the
liquid surface of the batteries should be adjusted to the stipulated values. When the storage period comes to one
month, the batteries should be complementarily charged with the common charge method.
9. List of accessories, spare parts and vulnerable pasts
No.
Name
Use position
Type & specification Quantity
Remarks
1
Key to the electric lock
Unlock the electric lock
2
2
Charging plug and socket Matched with the charger
1 set
3
Fuse
Electric equipment
10A
1
4
Fuse
Electric equipment
160A
1
5
Sealing ring
Lifting oil cylinder
UHS38
2
6
O type sealing ring
Lifting oil cylinder
3.55X50
1
7
Sealing ring
Tilting oil cylinder
UHS30
1
8
Sealing ring
Tilting oil cylinder
UHS63
1
9
O type sealing ring
Tilting oil cylinder
2.56X58
1
10
sealing ring
Forward reach oil cylinder
UHS28
1
11
sealing ring
Forward reach oil cylinder
UHS40
1
12
O type sealing ring
Forward reach oil cylinder
2.65x45
1
13
Dustproof ring
Forward reach oil cylinder
DH28
1
14
Dustproof ring
Tilting oil cylinder
DH30
1
15
Dustproof ring
Lifting oil cylinder
DH38
10. Package & transportation
