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|  MIL-P-17639F(SH)
Missing parts. This examination applies primarily to the
(d)
completed product prior to shipment.
Assembly. During assembly, positioning tolerances and wear ring/
(e)
impeller running clearances shall be verified.
(f)
Alinement. The equipment and its subassemblies shall be examined
to insure that the alinement is as specified.
Adjustment. The adjustment of safety, control, and monitoring
(g)
devices shall be verified and the settings recorded. Settings
which should not be tampered with, once adjusted, shall be tagged
with an appropriate precautionary warning.
The preservation used, the method of application,
(h)
Preservation.
and recommended procedure for removal of preservative prior to
placing the unit in service shall be stated on a supplemental
sheet and attached to the check list.
4.5.1 A copy of the completed part examination check list for each
s
completed pump, identified by manufacturer serial number, shall be furnished
(see 6.2.2). On these copies, the contractor's quality control manager shall
certify that the inspection requirements specified herein have been fulfilled
and that the unit is in accordance with the approved drawings and the applicable
specifications.
4.6 Tests. The contracting activity and Government representatives shall
have the right-to examine the facilities at the contractor's plants and at the
contractor's subcontractor's plants, and to witness all tests specified herein.
Failures, deficiencies , and discrepancies revealed during the performance of the
specified tests and the corrective measures taken, shall be recorded and fully
documented in the applicable test records and test reports (see 6.2.2). After
correction of deficiencies, tests shall be repeated to the extent necessary to
ascertain acceptability for the modified pump, Major failures indicative of
the design deficiency (as distinguished from shop error or faulty workmanship)
shall be reported to the design review agency before a correction is made.
Except where specifically required herein to be tested with actual device, tests
of turbine driven pumps may be conducted using a substitute driver provided the
actual device separately passes the tests required by its specification.
4.6.1 Hydrostatic pressure test. All pressure boundary parts shall be
tested hydrostatically to a pressure--one and one-half times the maximum discharge
pressure at maximum submergence, but in no case less than 50
The hydro-
static test pressure shall be maintained for at least 30 minutes or longer as
necessary for examination of entire casing.
Acceptance criteria: The pump shall exhibit no leakage through the pressure
boundary material or joints. The leaking rate through a mechanical seal shall
not exceed 5 drops per minute.
4.6.2 Over-speed test. Each variable speed driver capable of overspeeding
shall be over-speed tested in accordance with the specification applicable to the
driver.
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