30
5
Battery, battery connections
Keep battery clean and dry.
Remove battery cables (negative first).
Clean battery posts (+ and -) and clamps
and grease with acid-free and acid-resist-
ant grease.
Ensure that clamps make good contact
after reassembling. Hand tighten the bolts
only.
Checking specific gravity
Every Vetus Maintenance-free battery has
a hydrometer (1) built into the cover.
Visual inspection of the hydrometer will
show one of three conditions:
Hydrometer operation
• Green dot visible
- State of charge
65 % or more.
• Dark
- State of charge less than 65 %.
Recharge immediately.
• Clear or light yellow
- Electrolyte level
low.
In case of low level, caused by over-
charging the battery for a long period of
time with a voltage too high, replace
battery. Check alternator and/or voltage
regulator.
Maintenance
Battery, cables and connections
Every 100 operating hours.
VD00117
VD00118
VD00121
VD00122
VD00123
Vetus maintenance-free batteries
GREEN DOT
ALL DARK
CLEAR
340102.04 M2C5D506/M309 EN 14-04-2005 10:35 Pagina 30