a. Organizational maintenance is normally authorized to,
performed by, and the responsibility of a using organization on the
equipment in its possession. This maintenance consists of functions
and repairs within the capabilities of men, skills, tools, and test
equipment authorized to a unit by a table of organization and
equipment (TOE) or by a table of distribution (TD).
b. Direct support maintenance is normally authorized to and
performed by a designated maintenance activity in direct support of a
using organization on a return-to-user basis.
c. General support maintenance is authorized to and performed
by designated TOE and TD organizations in support of the Army supply
Repairs and overhauls bring materiel up to required
applicable supported Army area supply requirements.
d. Depot maintenance is performed by activities with a
capability of overhauling, rebuilding, and repairing equipment beyond
that of general support maintenance organizations. Depot maintenance
In the continental United States, depot maintenance of
railway equipment is a responsibility of the Army Materiel Command.
The maintenance is performed in selected commercial rail repair shops
under contract. In a theater of operations, depot maintenance is not
normally performed. If it were, for example in a large sophisticated
theater, it would be a responsibility of the supply and maintenance
command, theater army support command (TASCOM).
Men in the operating units of the transportation railway
service perform organizational maintenance on equipment they use.
Engineers, running the locomotives, and car inspectors check and
service equipment each time it is used.
On locomotives, the
maintenance includes inspecting, cleaning, lubricating, adjusting,
On rolling stock, it includes inspection of airbrakes, running gear,
and other parts, and examination and lubrication of journal boxes.
Organizational maintenance may be separated into three parts:
before-, during-, and after-operation service.