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9.2. Electrical system
9.2.1. Checking and maintenance
of battery
- Check the charge of the battery with an acid
tester. Min. 1.23.
- Check fan belt tension.
- Keep the battery clean. It can be washed with
lukewarm water after removal from the tractor
(always disconnect the negative lead first).
- Also clean the pole studs, the cable terminals and
the battery retainer thoroughly. Wash off oxidized
spots with water.
- Wipe the outside of the battery, and coat the pole
studs and the cable terminals with petroleum jelly.
- Refit the battery (always connect the positive lead
first).
DANGER: Avoid sparking or naked
flames near the battery. The battery
gives off hydrogen gas which is highly
explosive. The battery electrolyte is
corrosive.
9.2.2. Alternator
The tractor has a negative-grounded alternator
which can easily be damaged if an incorrect
connection is made in the electrical system. For
example, connection of the battery with wrong
polarity can burn out the alternator or rectifier. The
electrical charging circuit must not be broken when
the engine is running.
9.2.3. Safety precautions for the
electrical system
- Always connect the battery with the correct
polarity.
- Disconnect the negative lead of the battery first
and connect it last.
-Never brake the charging circuit while the engine is
running.
- Disconnect the battery negative lead before
removing the alternator from the engine.
- Arrange enough ventilation to prevent the build---
up of explosive gases in and around the battery.
IMPORTANT: The battery leads
(negative first) and the alternator
wiring must be disconnected before
arc welding is carried out on the
tractor or an implement which is attached to it.
Never run the engine with the alternator
disconnected. Do not connect any additional
electrical equipment, as this may damage
components of the existing electrical system.
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