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Rev. E
Groundsmaster 4000−DPage 5 − 28Electrical System
Service and Repairs
NOTE: For more component repair information, see
the Kubota Workshop Manual, Diesel Engine, V2003−T
Series at the end of Chapter 3 − Kubota Diesel Engine.
Battery Storage
If the machine will be stored for more than 30 days:
1. Remove the battery and charge it fully (see Battery
Service).
2. Either store battery on a shelf or on the machine.
3. Leave cables disconnected if the battery is stored on
the machine.
4. Store battery in a cool atmosphere to avoid quick de-
terioration of the battery charge.
5. To help prevent the battery from freezing, make sure
it is fully charged (see Battery Service).
Battery Care
1. Battery electrolyte level must be properly main-
tained. The top of the battery must be kept clean. lf the
machine is stored in a location where temperatures are
extremely high, the battery will run down more rapidly
than if the machine is stored in a location where temper-
atures are cool.
WARNING
Wear safety goggles and rubber gloves when
working with electrolyte. Charge battery in a
well ventilated place so gasses produced
while charging can dissipate. Since the gases
are explosive, keep open flames and electrical
sparks away from the battery; do not smoke.
Nausea may result if the gases are inhaled. Un-
plug charger from electrical outlet before con-
necting or disconnecting charger leads to or
from battery posts.
IMPORTANT: Do not remove fill caps while clean-
ing.
2. Check battery condition weekly or after every 50
hours of operation. Keep terminals and entire battery
case clean because a dirty battery will discharge slowly.
A. Clean battery by washing entire case with a solu-
tion of baking soda and water. Rinse with clear water.
B. Coat battery posts and cable connectors with
skin−over grease (Toro Part No. 505−165) or petro-
leum jelly to prevent corrosion.
3. Battery cables must be tight on terminals to provide
good electrical contact.
Connecting cables to the wrong post could re-
sult in personal injury and/or damage to the
electrical system.
WARNING
4. If corrosion occurs at terminals, disconnect cables.
Always disconnect negative (−) cable first. Clean
clamps and terminals separately. Reconnect cables
with positive (+) cable first. Coat battery posts and cable
connectors with skin−over grease (Toro Part No.
505−165) or petroleum jelly to prevent corrosion.
5. Check electrolyte level every 25 operating hours,
and every 30 days if machine is in storage.
6. Maintain cell level with distilled or demineralized wa-
ter. Do not fill cells above the fill line.