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|  MIL-V-3083D
3.5.2 Initial lubrication service. Unless otherwise preserved for packaging, the vibrator shall
be serviced with military lubricants before delivery to the Government.
3.6 Performance.
3.6.1 Operating characteristics. The vibrator shall withstand operation online pressures up to
110.00 pounds per square inch (psi) and shall also withstand operation with the head completely
submerged in concrete. The maximum operating speed shall be not less than 9, 000 vibrations per
minute (vpm) and the operating speed shall be adjustable to any desired speed between 5,000 and
9,000 vpm. The air required to operate the vibrator at maximum speed shall not exceed 40.00
cubic feet per minute (cfm) at 90.00 psi. The vibrator shall produce a centrifugal force of not less
than 1600 pounds (720 kg) when operated at 9,000 vpm.
3.7 Human factors engineering. The vibrator shall be in accordance with accepted human
factors engineering design criteria as described in MIL-STD-1472. Special design emphasis shall
be given, but not limited to, general requirements (4), controls (5.4), labeling (5.5), design for
maintainability (5.9), operational and maintenance ground/shipboard vehicles (5.12) and hazards
and safety (5.13) of MIL-STD-1472, as applicable.
3.8 Noise limits. The noise produced by the vibrator shall be in with MIL-STD-1474,
category D requirements, with the exception of MIL-STD-1474, 5.2, 5.3, and 5.4, when tested in
accordance with 4.5.2.8. The provision of MIL-STD-1474, 4.3 and 4.4 shall apply if and only if
MIL-STD-1474, 5.1.1.2 procedures have been pursued and documented to the satisfaction of the
procuring activity and written permission to exceed the 85 dB(A) limit is obtained from the
contracting officer. Hazard signs shall be in accordance with MIL-STD-1474, 4.3, except the
sign will state "HEARING PROTECTION REQUIRED WITHIN (specify) FEET". The sign
shall be readable at the distance indicated on the sign.
3.9 Identification marking. The vibrator shall be identified in accordance with MIL-STD-
130. The information shall be roll stamped on the vibrating head or the contractor's nomenclature
plate shall be attached to the vibrator.
3.10 Treatment and painting. The portions of the vibrator normally painted, internally and
externally, shall be cleaned, treated, and painted in accordance with MIL-STD-704, type F or G,
as applicable. Unless otherwise specified (see 6.2), top coat color shall be camouflage green 383
in accordance with MIL-C-46168.
3.11 Workmanship. The vibrator shall be free of defects such as galvanic action resulting
from dissimilar metals, rust, cracks, and other defects that could impair its operation or
serviceability.
3.11.1 Surfaces. All parts, components, and assemblies of the vibrator including castings,
forgings, molded parts, starlings, bearings, seals, machined surfaces, and welded parts shall be
clean and free of sand, dirt, fins, pits, sprues, scale, flux, and other harmful extraneous material.
All exposed edges shall be rounded or beveled.
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