items in columns 2 and 3, repair assemblies, components, and end items, and fabricate parts from bulk
material.
Column 4, General support. General support maintenance is that maintenance performed by units organized
as semifixed or permanent shops to serve lower level maintenance within a geographical area, such as
replacement of items in columns 2, 3 and 4 repair end items, overhaul assemblies, components and fabricate
general use common hardware and parts.
Column 5, Depot. Depot maintenance is that maintenance authorized to overhaul assemblies, components,
end items, and replacement of all parts in columns 2, 3, 4, and 5.
d. Symbol X. The symbol X placed in the appropriate column indicates the lowest level responsible for
performing the particular maintenance operation, but does not necessarily indicate repair parts will be stocked
at that level.
e. Remarks. The remarks column is used to explain why maintenance, that would normally be done at a
lower level is moved to a higher level because of some peculiarity in the construction of the end item.
Maintenance Allocation Chart
Functional
Components and related operation
Levels of
Remarks
group
maintenance
1
2
3
4
5
DISTRIBUTOR, WATER, TANK TYPE;
GASOLINE DRIVES 1,000-GALLON
01
0100
ENGINE
ENGINE ASSEMBLY
Engine, Gasoline
Service -------------------------------
X
Inspect -------------------------------
X
Test ----------------------------------
------
X ---
------
------
------
Compression
Replace ------------------------------
------
------
X
Repair --------------------------------
------
X
Overhaul -----------------------------
------
------
------
X
CRANKCASE, BLOCK CYLINDER
0101
HEAD
Crankcase: Blocks
Replace -------------------------
------
------
------
X
Heads
Replace -------------------------
------
X
CRANKSHAFT
0102
Crankshaft; Bearings; Seals
Replace -------------------------
------
-----
-----
X
FLYWHEEL ASSEMBLY
0103
Flywheel ------------------------------
------
X
Replace -------------------------
------
------
X
Ring Gear
Replace
PISTONS, CONNECTING RODS
0104
Pistons; Rings; Pins; Retainers
Replace -------------------------
------
------
------
X
Rods, Connecting
Replace -------------------------
------
------
------
X
Repair ---------------------------
------
------
------
X
VALVES, CAMSHAFTS AND TIMING
0105
SYSTEM
Valves; Seats
Replace -------------------------
------
------
X
Repair ---------------------------
------
------
X
103
