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|  MIL-S-52986(ME)
as specified in Section 4. Following successful completion of the examination
and demonstration by the contractor, the Government shall perform a simulated
airdrop demonstration on one of each type scraper at a site selected by the
Government. The examination and all demonstrations conducted by the contractor
shall be subject to surveillance and approval by the Government. Acceptance of
the preproduction models will be-dependent on successful completion of the
examination, contractor demonstrations, and the Government conducted simulated
airdrop demonstration.
3.4 Production scrapers. All scrapers of the same type furnished under this
specification shall be physically and mechanically identical to the first
article scraper approved by the Government.
3.5 Material. Material not specified herein shall be selected by the
contractor and shall be subject to all provisions of this specification (see
6.4).
3.6 Safety. All available standard or optional accessories shall be included
to provide protection for maintenance and operating personnel from rotating or
reciprocating parts and from all parts subject to high operational temperatures
and so located as to be a hazard. Exhaust discharges shall be directed so as to
not endanger personnel. All olatforms and steps shall have anti-skid surfaces.
The starting system shall be such that the transmission must be placed in
neutral before the engine can be started or the transmission must be placed in
neutral before the scraper can be set into motion. Contractor's standard grab
irons shall be provided. A decal shall be furnished and shall be located in the
area of the articulation point, warning of limited personnel clearence during
frame articulation and placement of safety pin or bar for the scraper operating
and transport modes.
3.6.1 Sound level. The exterior sound level of the scraper shall not exceed
88 dB(A) when measured in accordance with SAE J88. If the sound level in the
area occupied by the operator exceeds 85 dB(A) when measured in accordance with
SAE J919, a warning plate containing the following shall be permanently affixed
to the scraper in a conspicuous protected location.
"WARNING, EAR PROTECTION REQUIRED WHEN OPERATING THIS SCRAPER"
The plate shall have a yellow background with black lettering and shall be on
corrosion-resistance material.
3.6.2 Rollover protective structure (ROPS) and falling objects protective
structure (FOPS). The scraper shall be equipped with a removable bolted down
ROPS/FOPS canopy. The canopy shall be removable and replaceble without cutting
or welding. The ROPS/FOPS shall conform to SAE J1040 and SAE J231
respectively. A seat belt conforming to SAE J386 shall be properly installed
for use by the operator. Quick disconnect fittings (electric, etc.) shall be
provided as applicable to facilitate canopy removal. A sling eye(s) shall be
provided to facilitate removal of ROPS/FOPS.
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