Jungheinrich DFG 435 Operating Instructions Manual page 120

Electrical system
CAUTION!
Accident risk from Electrical system:
Only trained personnel may work on the electrical system.
Before working on the electrical system, all precautionary measures must be taken
to avoid electrical accidents.
The connecting leads on the starter battery must be disassembled to disable it.
WARNING!
Electric currents can cause accidents
Make sure the electrical system is voltage-free before starting work on it. Before
starting maintenance on the electrical system:
Park the truck securely ((see "Parking the truck securely" on page 74)).
Disconnect the battery.
Remove any rings or metal bracelets etc. before working on electrical components.
Consumables and used parts
CAUTION!
Consumables and used parts are an environmental hazard
Used parts, oils and fuels must be disposed of in accordance with the relevant
environmental protection regulations. To change the oil contact the manufacturer's
customer service department, who have been specially trained for this task.
Note the safety regulations when handling these materials.
Welding
Remove electrical and electronic components from the truck before performing
welding operations, to avoid damage.
Settings
When repairing or replacing hydraulic, electric or electronic components or
assemblies, always note the truck-specific settings.
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