The Tractor-Scraper will not require any new or special maintenance consideration. All maintenance functions can be
accomplished within the current maintenance concepts established for construction equipment.
Operator/Crew Maintenance. Operator and crew maintenance is limited to daily preventive maintenance
checks and services.
Organizational Maintenance. Organizational maintenance consists of scheduled preventive maintenance
services, minor repairs, and adjustments.
Direct Support (DS) Maintenance. Direct support maintenance consists of repairs on-site or in direct support
units shop. Repairs are accomplished with a minimum of tools and test equipment. Maintenance is performed on a
repair-and-return-to-user basis, and organizational maintenance repair parts are supplied to using units.
General Support (GS) Maintenance. General support maintenance units receive equipment for repair and
overhaul from direct support units, collection points, supply units, and other activities for which they are assigned
maintenance support responsibilities. GS units operate on a repair/overhaul and return to supply system principle.
Depot Maintenance. The primary purpose of Depot maintenance is to augment stocks of serviceable assets
which require maintenance that is beyond the capability of General Support Maintenance Activities. Depot
maintenance is usually accomplished in fixed shops and facilities that are government owned and operated,
government owned and contractor operated, or contractor owned and operated.
MAINTENANCE ALLOCATION CHART (MAC)
Maintenance will be performed as necessary by the category indicated in the Maintenance Allocation Chart (TM 5-3805-
260-24) 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 Maintenance