Section C Electrics
9803/8550
Section C
Issue 1
Batteries
3 - 1
Safety
!!
WARNING
Batteries give off an explosive gas. Do not smoke when
handling or working on the battery. Keep the battery
away from sparks and flames.
Battery electrolyte contains sulphuric acid. It can burn
you if it touches your skin or eyes. Wear goggles. Handle
the battery carefully to prevent spillage. Keep metallic
items (watches, rings, zips etc) away from the battery
terminals. Such items could short the terminals and burn
you.
Set all switches in the cab to OFF before disconnecting
and connecting the battery. When disconnecting the
battery, take off the earth (-) lead first.
When reconnecting, fit the positive (+) lead first.
Re-charge the battery away from the machine, in a well
ventilated area. Switch the charging circuit off before
connecting or disconnecting the battery. When you have
installed the battery in the machine, wait five minutes
before connecting it up.
5-3-4-3
First Aid - Electrolyte
EYES Flush with water for 15 minutes. Get
medical help fast.
IF SWALLOWED Do not induce vomiting. Drink large
quantities of water or milk. Then drink milk
of magnesia, beaten egg or vegetable oil.
SKIN Flush with water. Remove affected
clothing.
Maintenance
To ensure that the battery provides optimum performance
the following steps should be observed:
1 Make sure that the electrical connections are clean and
tight. Smear petroleum jelly on connectors to prevent
corrosion.
2 Never allow the electrolyte level to fall below the
recommended level - 6 mm (1/4 in) above the plates.
3 Use only distilled water for topping up.
4 Keep the battery at least three quarters charged,
otherwise the plates may become sulphated (hardened)
- this condition makes recharging the battery very
difficult.
Extra precautions must be taken when bench charging
maintenance free batteries, they are more prone to damage
by overcharging than the standard type of battery:
-NEVER boost-charge a maintenance free battery.
-NEVER charge a maintenance free battery at a
voltage in excess of 15.8 Volts.
-NEVER continue to charge a maintenance free
battery after it begins to gas.
3 - 1
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