Use this information to understand how to use the abbreviations
in the part assembly diagrams.
- If two assemblies contain a majority of identical parts, they are on the
same list. Common parts are shown by one index number. Parts specific to one
or the other of the assemblies are listed separately and identified by description.
- AR (as required) in the Units column indicates that
the quantity is not the same for all machines.
- NP (non-procurable) in the Units column indicates
that the part is non-procurable and that the individual parts or the next
higher assembly should be ordered.
- NR (not recommended) in the Units column indicates
that the part is procurable but not recommended for field replacement and
that the next higher assembly should be ordered.
- R (restricted) in the Units column indicates that
the part has a restricted availability.
- NONUM (no number) indicates that the part number is not available.
- REF (reference) indicates that the part is shown for reference
and may be listed more than once.
- Indenture is marked by a series of dots located before the parts description.
The indenture indicates the relationship of a part to the next higher assembly.
For example:
| Indenture |
Relationship of parts |
|---|
| No dots |
Main assembly |
| One dot |
Subassembly of the main assembly or detail parts of
the main assembly |
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