Electrical System
Disconnect the power
Before any work is done on the electrical system, the
engine must be stopped and the power removed by
switching off the main switch(es). Any external power
supply for engine heaters, battery chargers or other
auxiliary equipment connected to the engine must be
disconnected.
Batteries
Batteries contain a highly corrosive electrolyte. Pro-
tect your eyes, skin and clothes during charging and
other handling of batteries. Always use protective
goggles and gloves.
If acid comes into contact with your skin, wash at once
with soap and a lot of water.
If you get battery acid in your eyes, flush at once with
a lot of cold water, and get medical assistance at
once.
Electric welding
Remove the positive and negative cables from the
batteries.
Then disconnect all cables connected to the alterna-
tor. Disconnect both connectors from the engine con-
trol module.
Always connect the welder earth clamp to the com-
ponent to be welded, and as close as possible to the
weld site. The clamp must never be connected to the
engine or in such a way that current can pass through
a bearing.
When welding is completed:
Always connect the
cables to the alternator
and engine control unit con-
nector before
reconnecting the battery cables.
Safety Information
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Summary of Contents for R570U
Page 1: ...User and maintenance manual for generating sets R570U 33504081501NE_1_1 ...
Page 15: ...Alternator Cabinet Figure 1 3 Examples of identification plates 13 297 ...
Page 18: ...Sockets voltage 208 120V 16 297 ...
Page 125: ...9 Appendix 9 1 Appendix A Engine user and maintenance manual 123 297 ...
Page 126: ...124 297 ...
Page 128: ...126 297 ...
Page 129: ...OPERATOR S MANUAL Generating set and industrial engines 16 liter EMS 2 127 297 ...
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Page 222: ...7748681 English 12 2011 220 297 ...
Page 223: ...9 2 Appendix B Alternator user and maintenance manual 221 297 ...
Page 224: ...222 297 ...
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Page 250: ...www leroy somer com 248 297 ...
Page 261: ...Installation and maintenance R250 A V R 4067 en 2009 05 b LEROY SOMER 11 259 297 ...
Page 281: ...2012 03 e LEROY SOMER 19 Installation and maintenance R 450 AVRs 4531 en 279 297 ...
Page 282: ...www leroy somer com 280 297 ...