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OM-2032 / Operation and Maintenance Manual
100D20 / Generator Sets
(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) "HOBART PART NUMBER" Column
ALL part numbers appearing in this column are Hobart 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 Hobart will be identified as
such in the "NOMENCLATURE" column. In case Hobart does not have an identifying part
number for a purchased part, the "HOBART PART NUMBER" column will reflect "No Number"
and the vendor's number will be shown in the "NOMENCLATURE" column. Parts manufactured
by Hobart reflect no vendor code or part number in the "NOMENCLATURE" column.
(3) "NOMENCLATURE" Column
The item identifying name appears in this column. The indenture method indicates 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 shown in this
column. Hobart modification to vendor items is also noted in thi 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 which 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. Uncoded parts are
usable on all models.
Parts in this manual are coded as follows:
Parts coded "A" are used only on Spec 6912-1
Parts coded "B" are used only on Spec 6920-1
Parts coded "C" are used only on Spec 6920-2
Parts coded "D" are used only on Spec 7002-1
Parts coded "E" are used only on Spec 7002-2
(5) "UNITS PER ASSEMBLY" Column
This column indicates the quantity of parts required for an assembly or subassembly in which
the part appears. This column does not necessarily reflect the total used in the complete end
item.
Chapter 4-1
Page 2
March 31/94 Revised
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