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|  MIL-C-53057(ME)
intervals over a twelve hour period following the test(s). Leakage
greater than 3.12.9 shall be cause for rejection.
4.6.2.19 Electromagnetic interference The crane shall be tested in
.
accordance with MIL-STD-461. Nonconformance to 3.28 shall constitute
failure of this test.
4.6.2.20 Slinging provisions. Test the slinging provisions by
applying the load for the time period specified in MIL STD-209.
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Nonconformance to MIL-STD-209 shall constitute failure of this test
(see 3.31 and 3.1.3.1).
4.6.2.21 Tiedown provisions. Test the tiedown provisions by
applying the load specified in MIL STD-209 for the time period
-
specified in MIL-STD-209. Nonconformance to MIL-STD-209 shall
constitute failure of this test (see 3.31 and 3.1.3.1).
4.6.2.22 Noise level measurement.
4.6.2.22.1 Operator's station. The noise level of the crane
(excluding horns) shall not exceed 82dB(A) at operator's station
during load lifting, load lowering, and high speed operations as
specified in MIL-STD-1474 when tested under the following conditions:
Engine shall be operated at maximum no load governed speed. All
lifting and lowering operations shall be accomplished with the crane
stationary, with a fully loaded 20 foot container at a 27-foot radius
st specified engine speed (maximum no load governed speed), and with
the lift/lower control in its wide open position. High speed test
shall be accomplished at engine speed (maximum no load ground speed)
in highest gear range, with boom in retracted position, over level
ground at sufficient distance to insure maximum speed under specified
conditions. All measurements shall be taken within 6 inches of the
operator's right ear. Measurements shall be taken with doors and
windows open and again with doors and windows closed. Nonconformance
to 3.6.1.1 shall constitute failure of this test.
4.6.2.22.2 Exterior noise. Measure the exterior noise level in
accordance with SAE J88. Nonconformance to 3.6.1.2 shall constitute
failure of this test. The horn shall be operated and tested for
conformance to 3.25.
4.6.2.23 Rain. Test the crane in accordance with test method No.
22. Nonconformance to 3.4.4 or 3.10.2.8 shall constitute failure of
this test.
4.6.2.24 Wheel guards. Apply a vertical downward force of 300
pounds to the geometric canter of the horizontal surface, or to the
uppermost point (not including supports or braces), whichever is
applicable. The force shall be applied for not less than 2 minutes.
Examine the guard for permanent deformation or fractures. Flexible
wheel guards may be deformed during the test loading but shall return
to their original shape when the load is removed. Nonconformance to
3.16 shall constitute failure of this test.
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