Battery, Cables And Cable Connections - Vetus M4.55 Operation Manual

4 Maintenance
Conventional batteries
VD00119
21 Checking electrolyte level
For conventional batteries it is required
to check the electrolyte level regularly.
Remove vent caps (taking care no spark
or open flame is nearby) and inspect the
level. Fluid should be 10 to 15 mm (3/8" to
5/8") above top of all plates. If necessary
top up with distilled water. Replace vent
caps and charge the battery for 15 min-
utes at 15 - 25 Amps to mix electrolyte.
Conventional batteries
VD00120
22 Checking specific gravity
Measure the electrolyte specific gravity
of the individual cells with a commer-
cial hydrometer. The hydrometer reading
(see table) indicates the state of charge.
Hydrometer reading of all cells should be
at least 1.200 and show less than 0.050
between high and low. If not, recharge or
replace battery. During checking the tem-
perature of the electrolyte should prefer-
ably be 20°C (68°F).
Battery, cables and connections
Every 100 operating hours.
Specific State of
gravity charge
1.280 100%
1.200 50%
1.120 10%
D
anger
The gases emitted by the battery are
explosive! Keep sparks and naked flames
away from the battery!
Do not allow battery acid to come into
contact with skin or clothing!
Wear protective goggles!
Do not rest tools on the battery!
recharge
recharge
immediately
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