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|  MIL-H-8891A
The following procedure should be adapted by the
6.2.2.1
contractor for components not listed under 6.2.2(e):
(a) The contractor should certify, upon completion of
validating tests, that the hydraulic camponent conforms to the applicable
military or contractor-prepared specifications approved by the procuring
activity and is satisfactory for use in the particular vehicle weapon
system hydraulic system.
(b) The test reports, as well as the specifications
and other applicable engineering data covering the hydraulic system com-
poneuts, other than those specified in 6.2.2(e), should be retained by the
contractor and should be available to the procuring activity upon request,
with the exception that all the cross-sectional assembly drawings should
be submitted for information.
(c) The contractor should list in a status of equip-
ment list those components that are contractor certified for data avail-
l
ability and compliance with the applicable Government-approved specifications.
6,2.3
Production data - Where changes have been made in the
hydraulic system over the developmental hydraulic system, the developmental
data required in 6.2.2 should be submitted.
6.2.3.1
Functional test specification - A specification in-
corporating the necessary functional tests of the hydraulic system of
production vehicle should be submitted to the procuring activity for
approval.
6.2.3.2
Schematic diagram - The schematic diagram should con-
sist of one copy of the conventional size and one copy approximately 11
inches in height. The arrangement of the schematic diagram should be such
as to present the system in a clear and easily readable form, with complete
subsystems grouped and labeled accordingly. Emphasis should be placed on
simplicity and clarity of presentation, with location in the vehicle being
of secondary importance, Nomenclature of each unit should be made adjacent
to or in the vicinity of each unit. In addition, the schematic diagram
should contain the following information:
(a) Operating pressure of all systems and subsystems.
(b) All relief valve reseat and full flow pressures.
(c) Initial gas pressure of accumulators and their
normal capacities.
(d) Pressure range of pressure regulators.
(e) Diameter, wall thickness, and material of tubing.
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