MIL-C-0052980C(ME)
pressure, and speed, oil temperature higher than specified in
MIL-STD-1300 for the engine and as specified by the contractor for
the compressor unit, discharged air temperature in excess of ambient
+100 °F, or requirement for replacement of parts shall constitute
failure of this test.
4.5.2.19 Low temperature. Subject the class 4, size 15 cfm
winterized compressor to an ambient temperature of -50 °F until the
batteries and the engine and compressor unit lubricating oil
temperatures have stabilized. A 30-minute preheat with a heater
conforming to MIL-H-4607, class 3, or equivalent, shall be utilized
prior to attempting to start at -50 °F. Start the compressor with
the batteries that were cold soaked with the compressor. Outside
power for cranking shall not be used. After starting, disconnect
the heater, replace the duct cover, and operate the compressor at
rated speed, capacity and pressure for not less than 4 hours.
Record the data as specified in 4.5.2.5 at 30-minute intervals.
Failure to start after the 30-minute preheat period, failure to
operate at rated speed, pressure and capacity after starting, or
requirement for replacement of parts, shall constitute failure of
this test.
4.5.2.20 High temperature shu toff. On the winterized class 4,
size 15 cfm compressor, activate the high cylinder-head temperature
control device to stop the engine to determine conformance to
3.25.8. The device may be activated after complete or partial
disassembly from the engine and by the application of an outside
high temperature source to simulate high cylinder-head temperature.
4.5.2.21
Transportability.
4.5.2.21.1 Rail impact test. Equipment shall be tested in
accordance with MIL-STD-810, method 514.4, procedure III, and method
516.4, procedure VIII, except the item shall be impacted in each
direction at speeds of 6 and 8 miles per hour, ±5 percent. Examine
the equipment at the completion of each phase of this test. Any
dislodgement of any tool or item or equipment from its designated
position, any loosening or breaking of holddowns, ties, stays,
blocking or bracing, or any visual damage to the equipment shall
constitute failure of this test. Movement of a tool or item of
equipment within its designated position without any dislodgement is
permitted.
4.5.2.21.2 Slinging provisions. The slinging provisions shall be
tested in accordance with MIL-STD-209 to prove conformance to
3.24.6.4. Nonconformance to 3.24.6.4 shall constitute failure of
this test.
The tiedown provisions shall be
4.5.2.21.3 Tiedown Provisions.
tested in accordance with MIL-STD-209 to prove conformance to
3.24.6.5.
Nonconformance to 3.24.6.5 shall constitute failure of
this test.
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