Fayat Group BOMAG BW 226 DH-4, Service Manual, Page: 17 / 51

General repair instructions
BOMAG 17 008 916 89
1.3
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Plug-in connectors on control units are only dust
and water tight if the mating connector is plugged
on! Control units must be protected against spray
water, until the mating connector is finally plugged
on!
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Unauthorized opening of control electronics (Micro-
controller MC), modifications or repairs in the wiring
can cause severe malfunctions.
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Do not use any radio equipment or mobile phones
in the vehicle cab without a proper aerial or in the vi-
cinity of the control electronics!
Electrics and welding
!
Caution
Before starting welding work you should discon-
nect the negative battery pole or interrupt the
electric circuit with the main battery switch, dis-
connect the generator and pull the plugs off all
control units in order to protect the electrical sys-
tem of the machine.
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Disconnect the minus pole of the battery or interrupt
the electric circuit with the main battery switch.
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Isolate the generator and all control units from the
electric circuit.
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Always fasten the earth clamp of the welding unit in
the immediate vicinity of the welding location.
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When choosing the location for the earth clamp
make sure that the welding current will not pass
through joints or bearings.
Battery
Rules for the handling of batteries
When removing a battery always disconnect the mi-
nus pole before the plus pole. When installing the bat-
tery connect the minus pole after the plus pole to avoid
short circuits.
Fasten the terminal clamps with a little force as possi-
ble.
Always keep battery poles and terminal clams clean to
avoid high transition resistances when starting and
the related development of heat.
Make sure the battery is properly fastened in the vehi-
cle.