Checking Battery Voltage; Checking Battery Specific Gravity - Kubota D1803-CR-E4 Workshop Manual

4. ENGINE
6. Continue to increase the temperature and read the
temperature when the valve full opens gap.
Valve full opens gap
Full opening tem- Service specifi-
perature cation
NOTE
• If the measurement is out of the service
specifications, replace the thermostat.

4.9 Checking battery voltage

CAUTION
• To prevent an accidental short circuit, attach
the positive cable to the positive terminal before
the negative cable is attached to the negative
terminal.
• Do not remove the battery cap while the engine
operates.
• Keep electrolyte away from eyes, hands and
clothes.
If you are spattered with it, clean with water
immediately.
• Keep open sparks and flames away from the
battery at all times.
Hydrogen gas mixed with oxygen becomes very
explosive.
IMPORTANT
• Do not disconnect or remove the battery when
you operate engine.
Tools required
• Circuit tester
1. Stop the engine.
2. Measure the voltage with a circuit tester between
the battery terminals.
Service specifi-
Battery voltage
cation
4-102
Approx.
8 mm
0.3 in.
95 ℃
203 ℉
More than 12 V
D1803-CR-E4,D1803-CR-TE4,D1803-CR-TIE4,V2403-CR-E4,V2403-CR-TE4,V2403-CR-TE4BG,V2403-CR-TIE4
(1) Positive terminal
NOTE
• If the battery voltage is less than the service
specification, check the battery specific
gravity and charge the battery.
4.10 Checking battery specific
gravity
CAUTION
• To prevent an accidental short circuit, attach
the positive cable to the positive terminal before
the negative cable is attached to the negative
terminal.
• Do not remove the battery cap while the engine
operates.
• Keep electrolyte away from eyes, hands and
clothes.
If you are spattered with it, clean with water
immediately.
• Keep open sparks and flames away from the
battery at all times.
Hydrogen gas mixed with oxygen becomes very
explosive.
• If battery acid (dilute sulfuric acid) gets on you,
it could cause blindness or burns, or could
cause corrosion of machinery and tools so
please be careful when handling.
• Wear safety glasses and rubber gloves when
performing battery maintenance and inspection
(measuring specific gravity, filling water, or
charging).
• If the gas that is generated is ignited by an
ignition source, it may explode so be very
careful with sparks and fire.
• Keep your body and face as far away from the
battery as you
maintenance and inspection.
• Do not allow people who do not know how to
handle a battery or who do not sufficiently
SERVICING
4. Checking and adjusting
(2) Negative terminal
can when performing
KiSC issued 12, 2018 A