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4.1
4.1 Battery service
Danger
!
Danger of cauterisation ! Danger of explosion!
When working on the battery do not use open fire,
do not smoke!
The battery contains acid. Do not let acid come in
contact with skin or clothes!
Wear protective clothing!
Do not lay any tools on the battery!
Environment
Dispose of the old battery environmentally.
i
Note
Maintenance free batteries also need care. Mainte-
nance free only means that the fluid level does not
need to be checked. Each battery suffers under self-
discharge, which may, in not checked occasionally,
even cause damage to the battery as a result of ex-
haustive discharge.
The following therefore applies for the service life:
Switch off all consumers (e.g. ignition, light).
l
Check open-circuit voltage of the battery at regular
l
intervals. At least once per month.
Reference values: 12.6 V = fully charged; 12.3 V =
50% discharged.
Recharge the battery immediately after an open-cir-
l
cuit voltage of 12.25 V or less is reached. Do not
perform boost charging.
The open-circuit voltage of the battery occurs approx.
10 hours after the last charging process or one hour
after the last discharge.
After each charging process allow the battery to rest
l
for one hour before taking it into service.
For resting periods of more than one month you
l
should always disconnect the battery. Do not forget
to perform regular open-circuit voltage measure-
ments.
Caution
!
Exhausted batteries (batteries with formation of
sulphate on the plates are not covered under war-
ranty!
Open the battery door in the foot area of the driver's
l
stand.
46
Fig. 14
Remove the batteries (Fig. 14) and clean the bat-
l
tery compartment.
Clean the outside of the battery.
l
Clean battery poles and pole clamps and grease
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them with pole grease (Vaseline).
Check the fastening of the battery.
l
On serviceable batteries check the acid level, if nec-
l
essary top up to the filling mark with distilled water.
BOMAG
Battery service
008 916 85
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