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© 2014
SLF 2250/4000
Hydromatic Stinger
Maintenance
Service procedures - Battery
Charged batteries lose capacity without a closed circuit.
This static-discharge amounts daily to 0.2 - 1% of the capacity,
depending on the age of the battery and the temperature.
ATTENTION !
Discharged batteries are damaged because they sulphate. The
service life is thus reduced.
It is also very important to check the battery every 3 months and if
necessary, charge it.
Please notice the following during charging:
- The density of the acid decreases with increasing temperature
(0.01 kg/dm
3
per 15
°
temperature difference).
- Disconnect the negative pole.
- Charging current should amount to max. 1/10 of capacity (e.g.
battery 110 Ah - max. charging current = 11 A).
- After charging, check the density of the acid by using a refrac-
tometer or acid-siphon.
- If necessary use distilled water to bring the level of the acid
between the min. and max. markings on the battery.
CAUTION !
Batteries contain acid which is hazardous to skin and eyes.
When working on batteries, smoking and the use of open flames is
strictly prohibited.
When servicing a battery, safety goggles must be worn.
Safety instructions on the outside of the battery must be followed.
Never short-circuit the battery!
Battery disconnecting instructions:
- Disconnect external power supply and ventilate the battery
compartment for 15 minutes to remove explosive gases.
- Switch off the main battery switch, and deactivate any consum-
ers located "outside" the main battery switch.
- Always remove the ground connection FIRST, and connect it
LAST, to avoid causing sparks. When batteries are connected in
series, always remove the "-" pole that is connected to the
chassis FIRST. Next, remove the connection between the two
batteries, and LASTLY, disconnect the "+" pole. Installation
connections are carried out in reverse order.
Note:
Due to the chemical process that takes
place during charging, (during driving
or stationary charging) the battery heats
up. Because of this process, water in
the electrolyte is converted to hydrogen
and oxygen. If these gases are in cor-
rect proportions, an explosive mixture
forms. Any spark, for example by dis-
connecting the "+" pole first or by
short-circuiting due to a tool, or a ciga-
rette, etc. is enough to detonate the gas
and cause the battery to explode.
