WÄRTSILÄ Vasa R22, Instruction Manual

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Sparkles can also be a problem after they have cooled down, i.e. causing
short circuits, sealing problems etc.
00B.2 Precaution checklists
00B.2.1 Checklists General
The checklists (preferable glued to a plastic plate) in this chapter
should be put into the engines cabinet for respective system type. The
checklist must be easily visible and accessible when opening the
cabinet.
00B.2.2 Basic ECU (Despemes/Spemos) checklist
The following precautions must be paid attention to before welding in
the vicinity of a basic ECU system:
•
Close the cover of the cabinet
•
Deactive the system by disconnecting all external connectors
(X1...X4).
•
If convenient, protect cables, sensors and other equipment from
sparkles with a proper metal sheet.
00B.2.3 WECS 2000 checklist
The following precautions must be paid attention to before welding in
the vicinity of a WECS 2000 control system:
•
Close the covers of the cabinet and all the distributed units.
•
Deactivate the system by disconnecting all external connectors
(X1...X6).
•
If convenient, protect cables, sensors and other equipment from
sparkles with a proper metal sheet.
00B.2.4 WECS 3000 checklist
The following precautions must be paid attention to before welding in
the vicinity of a WECS 3000 control system:
•
Deactive the system by disconnecting all external connectors
(X1...X5).
•
Do not connect the welding apparatus return line to the alu-
minium profile containing CCU’s, KDU’s and ignition modules.
The profile is used as a common ground for these modules.
•
Open all terminal fuses (F1...F20) in the cabinet.
•
Close the covers of the cabinet and all the distributed units.
•
If convenient, protect cables, sensors and other equipment from
sparkles with proper metal sheet.
Appendix B Welding Precautions 200147
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