TM 5-3815-221-14&P
MAINTENANCE ALLOCATION CHART
FOR
BACKHOE, 2 CUBIC YARD
USED ON
HARNISHFEGER MODEL 560
CRANE, 40 TON
1.
General: This Maintenance Allocation Chart designates responsibility for performance of Maintenance functions to
specific Maintenance categories.
2.
Maintenance Functions:
a. Inspect: To determine the serviceability of an item by comparing its physical, mechanical and/or electrical
characteristics with established standards through examination.
b. Test: To verify serviceability and detect incipient failures by measuring the mechanical or electrical
characteristics of an item and comparing those characteristics with prescribed standards.
c. Service: Operations required periodically to keep an item in proper operating condition, i.e., to clean
(decontaminate), to preserve, to drain, to paint, or to replenish fuel, lubricants, hydraulic fluids, or compressed
air supplies.
d. Adjust: To maintain, within prescribed limits, by bringing into proper or exact position, or by setting the
operating characteristics to specified parameters.
e. Align: To adjust specified variable elements of an item to bring about optimum or desired performance. f.
Calibrate: To determine and cause corrections to be made or to be adjusted on instruments or test measuring and
diagnostic equipment used in precision measurement. Consists of comparisons of two instruments, one of which is a
certified standard of known accuracy, to detect and adjust any discrepancy in the accuracy of the instrument being
compared.
g. Install: The act of emplacing, seating, or fixing into position an item, part, or module (component or assembly)
in a manner to allow the proper functioning of an equipment or system.
h. Replace: The act of substituting a serviceable like type part, subassembly, or module (component or
assembly) for an unserviceable counterpart.
i.
Repair: The application of maintenance services or other maintenance actions to restore serviceability to an
item by correcting specific damage, fault, malfunction, or failure in a part, subassembly, module (component or assembly),
end item, or system.
B-5
