Kubota M7131, Operator'S Manual

Page: 251 / 298

219 PERIODIC SERVICE
C
Battery Charging
To avoid personal injury or death:
A
When the battery is being activated, hydrogen
and oxygen gases in the battery are extremely
explosive. Keep open sparks and flames away
from the battery at all times, especially when
charging the battery.
A
When charging the battery, ensure the vent
caps are securely in place. (if equipped)
A When disconnecting the cable from the battery,
start with the negative terminal first.
When connecting the cable to the battery, start
with the positive terminal first.
A Never check battery charge by placing a metal
object across the posts.
Use a voltmeter or hydrometer.
1. To slow charge the battery, connect the battery
positive terminal to the charger positive terminal and
the negative to the negative, then recharge in the
standard fashion.
2. A boost charge is only for emergencies. It will partially
charge 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.
3. Only switch off the charger once the battery has
finished charging.
4. When exchanging an old battery for a new one, use
battery of equal specification shown in table 1 .
Table 1
C Direction for Storage
1. When storing the tractor for long periods of time,
remove the battery from tractor and store in a dry place
out of direct sunlight.
2. The battery self-discharges while it is stored.
Recharge it once every 3 months in hot seasons and
once every 6 months in cold seasons.
C
How to detach the battery
1. In order to prevent short-outs due to contact between
the battery terminals (plus/minus) and the battery
cover, use a rag to cover the terminals when removing
or replacing the cover.
2. After removing the bolts, nuts, and battery cover as
shown in the figure below, remove the battery.
3. When connecting the battery cable, confirm the cable
and terminal plus/minus directions before connecting.
(1) Battery
(1) Battery
Volts
(V)
Capacity
(Ah)
Reserve
Capacity (min)
Cold Cranking
Amps (EN)
12
174
(C20/EN)
380
1400
( ‒ 18ºC [0.4ºF]/EN)
(1) Battery cover
(2) Bolt
(3) Nut