MIL-PRF-45316J
Any of the above conditions which cannot be corrected in 30 minutes using tools or parts
normally carried on the trailer or towing vehicle constitutes a failure. Maintenance and human
induced failures are excluded.
3.2.1 Operational profile. Apportioned test mileage shall be as follows:
a.
40 percent hard surfaced road
b.
27 percent gravel and dirt roads
c.
25 percent level cross-country road
d.
6 percent hilly cross-country road
e.
2 percent Belgian block road.
3.2.2 Failure. A failure is any malfunction of an end item requiring overhaul,
replacement, rebuild, salvage, or other corrective action as prescribed by maintenance manual
which cannot be deferred for the remainder of the 3000 miles.
3.2.3 Corrective action. Corrective action is not deferred if malfunction causes (or
would cause if not corrected):
a. Inability to commence operation, or cessation of operation.
b. Inability to conform to requirements of specification.
c. Critical or catastrophic hazard.
3.2.4 Malfunction. Any malfunction which the operator or crew can remedy will not be
considered a failure provided that the repair is authorized or prescribed as an operator function
and can be accomplished within 15 minutes using controls, tools, or spare parts incorporated in,
or carried with the end item or its prime mover.
3.3 Maintainability. Total maintenance, excluding driver and crew checks and services,
shall not exceed 3 man-hours during 3000 miles of operation. This equates to a maintenance
ratio of 0.02 at 20 operational miles (32.2 km); equivalent to one operational hour. The
scheduled maintenance interval shall be 3 months or 3000 miles, whichever comes first
(see 4.4.7.3).
3.4 Materials. Materials used shall be in accordance with the manufacturer's materials
specifications for trailer chassis and water tank. The materials shall be capable of meeting all of
the operational and environmental requirements specified herein (see 4.2 and 6.7).
3.4.1 Ozone resistance. All rubber components which are under tension or which may
be flexed shall be ozone resistant as specified in ASTM D2000.
3.4.2 Dissimilar metals. Dissimilar metals which could cause galvanic action shall be
protected using the manufacturer s standard process.
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