OM-2244 / Operation and Maintenance Manual
DCS-600/ Series 500082 / Solid State Transformer-Rectifiers
(1) FIGURE-ITEM NO. Column
This column lists the figure number of the illustration applicable to a particular parts list and also
identifies each part in the list by an item number. These item numbers also appear on the
illustration. Each item number on an illustration is connected to the part to which it pertains by a
leader line. Thus the figure and item numbering system ties the parts lists to the illustrations and
vice versa. The figure and index numbers are also used in the numerical index to assist the user
in finding the illustration of a part when the part number is known.
(2) ITW GSE PART NUMBER Column
All part numbers appearing in this column are ITW GSE numbers. In all instances where the part
is a purchased item, the vendor’s identifying five-digit code and his part number will appear in the
“NOMENCLATURE” column. Vendor parts, which are modified by ITW GSE, will be identified as
such in the “NOMENCLATURE” column. In case ITW GSE does not have an identifying part
number for a purchased part, the “ITW GSE PART NUMBER” column will reflect “No Number”
and the vendor’s number will be shown in the “NOMENCLATURE” column. Parts manufactured
by ITW GSE will reflect no vendor or part number in the “NOMENCLATURE” column.
(3) NOMENCLATURE Column
The item identifying name appears in this column. The indenture method is used to indicate item
relationship. Thus, components of an assembly are listed directly below the assembly and
indented one space. Vendor codes and part numbers for purchased parts are also listed in this
column when applicable. ITW GSE modification to vendor items is also noted in this column.
(4) EFF (Effective) Column
This column is used to indicate the applicability of parts to different models of equipment. When
more than one model of equipment is covered by a parts list, there are some parts that are used
on only one model. This column is used for insertion of a code letter A, B, etc., to indicate these
parts and to identify the particular model they are used on. Since this manual covers only one
generator set specification, this column is not used in this manual.
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