The tractor-water distributor does not require any new or special maintenance consideration. All maintenance
functions can be accomplished within the current maintenance concepts established for construction equipment.
Unit Maintenance. Unit maintenance is performed by the operator of the equipment, or by crew, or unit
maintenance personnel as shown in the Maintenance Allocation Chart (MAC) in this Appendix.
Direct Support/General Support Maintenance.
Direct Support (DS) maintenance is characterized by highly mobile, forward orientation repair of equipment
by replacement of unserviceable modules. If equipment is not repaired within DS specific time frame or is
not economically repairable, they will be evacuated to General Support. Maintenance is performed on a
repair and return to user basis.
General Support (GS) maintenance is a semifixed facility for repair of equipment and components. GS is
a job for production-line operators and contains support teams which may be deployed forward if required.
These units operate on a repair and return to supply system principle.
3. Depot Maintenance. This level of maintenance is oriented toward support of the supply system at both theater
and national levels. Maintenance at this level will be primarily production-line oriented and will be performed by
selected commodity-oriented organizations (both military and civilian), special repair activities (SRA), and AMC
support. Maintenance capability will include overhaul; modification; calibration; analytical, special, and
nondestructive testing/inspection; cannibalization; and fabrication of items not supported by the supply system in
support of National Maintenance Point (NMP) requirements.
MAINTENANCE ALLOCATION CHART (MAC)
Maintenance will be performed as necessary by the category indicated in the Maintenance Allocation Chart to
retain or restore serviceability. All authorized maintenance within the capability of a using organization will be
accomplished before referring the item to support maintenance. Higher categories will perform the maintenance
functions of lower categories when required or directed by the appropriate commanders. Using and support units may
exceed their authorized scope and functions in the MAC when approval is granted by the next higher support
QUALITY DEFICIENCY REPORT (QDR)
Standard Form 368 (Quality Deficiency Report) was adopted for Equipment Improvement Recommendations
(EIRs) reporting. This action was taken to standardize reporting within all governmental services. Submissions to be in
accordance with DA Pam 738-750.
MAINTENANCE EXPENDITURE LIMITS
The average life expectancy for the tractor-water distributor is 14 years. After last date shown, use 25 percent
repair limit until type classified obsolete.