Electrical Equipment - MASSEY FERGUSON 410 Operators Instruction Book

Maintenance and Adjustment

Electrical equipment

To avoid damage to the components of the alternator
charging system, the following service precautions
must be observed:
*NEVER make or break any of the charging circuit
connections, including the battery when the engine
is running.
*NEVER short any of the charging components
ground.
*ALWAYS disconnect the battery ground cable
before carrying out arc welding on the tractor.
*ALWAYS disconnect the battery ground cable
when charging the battery in the tractor.
*DO NOT use a slave battery of higher than 12
volt nominal voltage.
*ALWAYS observe correct polarity when installing
the battery or using a slave battery to start the
engine.
*ALWAYS connect the ground cable first.
Positive terminal and cable marked + (red).
Ground terminal and cable marked - (black).
The electrical circuit is a 12 volt NEGATIVE GROUND
system and requires little attention. Check and ensure
that all cables are secured in place and that terminals
are tight.
Battery
Check the battery every 250 hours.
WARNING: The battery contains a
sulfuric acid electrolyte which is a
corrosive substance and must be treated with
great care:
*Corrosive substance.
*Keep out of the reach of children.
*Avoid contact with skin and eyes. Battery acid
can cause intense irritation.
*Wear suitable protective clothing, gloves and eye
protection.
*In case of contact with eyes rinse immediately
with plenty of water and seek medical attention.
*When charging the battery, charge in a well
ventilated place and ALWAYS switch off at the
mains before disconnecting the terminals.
*If swallowed, seek medical advice immediately
and show the label.
*DO NOT use a naked flame to check the electrolyte
level, always use a voltmeter or hydrometer to
check the state of charge and a flashlight to check
the battery electrolyte level if necessary.
*Ensure vent plugs are correctly and tightly installed.
*Always remove the ground (-) black, cable first.
92
Fig.134
To gain access to the battery in front of the
radiator, just remove the grille (Fig. 134). Check the
condition of the battery ensuring that the electrolyte
is up to level. Clean the top of the battery, check that
the terminals are tight and smear them with petroleum
jelly.
Under normal use, maintenance-free batteries will
not require topping up. In the event of an alternator
failure always check the electrolyte levels. The height
above the plates should be 15 mm (0.625 in). If low,
adjust to the correct level by the addition of distilled
or deionized water.
In the event of an accidental discharge it is strongly
recommended that the battery is fully recharged in
the workshop. The recharge should be carried out
by a charger at 7 amps.
410/420/430 - 001 8903 U1
UZEL