OM 28Z3 US – Edition 2.0 * 28Z3b530.fm 5-28
Maintenance
Every week
☞ Check once a week:
• Electric fuses – see chapter Fuse box in engine compartment on page 6-3
• Cable and earth connections
• Battery charge condition – see Battery on page 5-29
• Condition of battery terminals
Instructions concerning specific components
Cables, bulbs and fuses
Always observe the following instructions:
• Malfunctioning components of the electric system must always be replaced by a
qualified technician.
• When performing maintenance work on the electric system, pay particular attention to
ensuring good contact in leads and fuses.
• Blown fuses indicate overloading or short circuits. The electric system must therefore
be checked before installing the new fuse.
• Only use fuses with the specified load capacity (amperage) – see chapter Fuse box in
engine compartment on page 6-3.
Alternator
Always observe the following instructions:
• Only test run the engine with the battery connected.
• When connecting the battery, make sure the poles (+/–) are not inverted.
• Always disconnect the battery before performing welding work or connecting a quick
battery charger.
• Replace a malfunctioning charge indicator light immediately – see chapter 31 Indicator
light (red) – alternator charge function on page 3-10
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