Servicing - Kubota M6800S Workshop Manual

M6800 · M6800S · M8200 · M9000, WSM

(2) Servicing

Recharging
CAUTION
• 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.
• When charging battery, remove battery vent plugs.
• 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.
• Never check battery charge by placing a metal object across
the posts.
• Use a voltmeter or hydrometer.
1) Slow Charging
1. Add distilled water if the electrolyte level is low. When charging,
the amount of electrolyte should be slightly lower than the
specified level to prevent overflow.
2. Connect the battery to the charging unit, following the
manufacturer's instructions.
3. As the electrolyte generates gas while charging, remove all port
caps.
4. The electrolyte temperature must not exceed 40 °C (105 °F)
during charging.
If it exceed 40 °C (105 °F), decrease the charging amperage or
stop charging for a while.
5. When charging several batteries in series, charge at the rate of
the smallest battery in the line.
2) Quick Charging
1. Determine the proper charging current and charging time with the
tester attached to the quick charger.
2. Determine the proper charging current as 1/1 of the battery
capacity. If the battery capacity exceeds 50 Ah, consider 50 A as
the maximum.
Precaution for Operating a Quick Charger
• Operation with a quick charger differs according to the type.
Consult the instruction manual and use accordingly.
Battery type
Volts (V)
9-S9
ELECTRICAL SYSTEM
130E41R
12 V
W1013599
KiSC issued 03, 2008 A