Waeco MWE-800-4 Montage- Und Bedienungsanleitung Seite 31

Safety and installation instructions
Warning!
To prevent short circuits, always disconnect the negative terminal
of the vehicle's electrical system before working on it.
If the vehicle has an additional battery, its negative terminal must
also be disconnected.
Warning!
Insufficient supply line connections could result in short circuits
which
– Cause cable fires
– Release the airbags
– Damage control devices
– Cause electric functions to fail (indicators, brake light, horn,
ignition, light)
Consequently, please observe the following instructions:
When working on the following supply lines, only use insulated cable lugs,
plugs and tab sleeves.
– 30 (direct supply from positive battery terminal)
– 15 (connected positive terminal, behind the battery)
– 31 (return line from the battery, earth).
Do not use porcelain insulating clamps.
Use a crimping tool (see fig. 1.7, page 3) to connect the cables.
When connecting to supply line 31 (earth), screw the cable
– To the vehicle's earth bolt or with a cable lug and a gear disc or
– To the sheet metal body work with a cable lug and a self-tapping
screw.
Ensure that there is a good earth connection.
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magic watch