Kubota WSM F2880 Workshop Manual page 36

F2880, F3680, RCK72-F36, RCK72R-F36, RCK60-F36, RCK60R-F36, WSM
Battery Charging
DANGER
• When the battery is being activated, hydrogen and oxygen
gases in the battery are extremely explosive. Keep sparks
and flames away from the battery at all times, especially
when charging the battery.
CAUTION
• When charging battery, remove battery vent plugs.
• When disconnecting the cable from the battery, start with
the negative terminal first.
• Never check battery charge by placing a metal object across
the posts.
• Use a voltmeter or hydrometer.
• Take care not to reverse connections (polarity) at the battery
as this could lead to electrical circuit damage, battery
damage, or battery explosion.
1. Make sure each electrolyte level is somewhere between the
markings (1) and (2). Add the correct amount of distilled water
up to the highest level as required.
2. The water in the electrolyte evaporates during recharging. Liquid
shortage damages the battery. Excessive liquid may spill over
and damages the machine body.
3. To slow charge the battery, connect the battery positive terminal
to the charge positive terminal and the negative to the negative,
then recharge in the standard fashion.
4. A boost charge is only for emergencies. It partially charges the
battery at a high rate and in a short time.
When using a boost-charged battery, it is necessary to recharge
the battery as early as possible.
Failure to do this will shorten the battery's service life.
5. When the specific gravity of electrolyte is between 1.27 and 1.29,
charge has been completed.
6. When exchanging an old battery for a new one, use a battery of
equal specification shown in table 1 and 2.
Direction for Storage
1. When storing the machine for a long period, remove the battery
from the machine, adjust the electrolyte to the proper level and
store in a dry place out of direct sunlight.
2. The battery self-discharges while it is stored.
Recharge it once a month in hot seasons and once every 2
months in cold seasons.
Table 1
Battery Type
70D2; 3R-CF-MF
Table 2
Reverse Capacity
Cold Cranking Amps
(min)
112
(1) Highest Level
G-23
G GENERAL
capacity at
Volts (V)
5 H.R (A.H)
12 52
Normal Charging Rate
(A)
490 6.5
(2) Lowest Level
KiSC issued 04, 2006 A
W1041310