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Page Title:
Submission of inspection equipment |
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|  MIL-F-45598A
4.4.4.2 Submission of inspection equipment. When specified
in the procurement document (See 6.5), Copies of drawings of
contractor designed inspection equipment shall be forwarded as
specified in the contract.
4.4.4.3 Ammunition and links (see 6.2).
4.4.4.3.1 Ammunition. Unless otherwise specified in
procurement documents, Government standard 7.62mm ball cartridges
or M172 (less primer) ball, inert loaded, smooth case cartridges
shall be used for testing feeders.
4.4.4.3.2 Links. Government standard 7.62mm, M13 links
shall be used for linking ammunition.
Methods of Inspection.
4.5
4.5.1 Solenoid dielectric withstanding voltage test
Feeders shall be tested for solenoid dielectric withstanding
voltage requirement (see 3.4.15) using a current limited (5
milliamperes maximum) high potential voltage shall w be applied for
1.0 .01 seconds between either coil terminal "B or "E" (See
Dwg. 11701134) and grounded metal parts. High potential test
voltages shall be reduced 20 percent for retest of solenoids
previously tested at the voltages specified in 3.4.15.
4.5.2 Solenoid operation test. Feeders shall be tested for
solenoid operation requirement (see 3.4.16) after completion of
the solenoid dielectric withstanding voltage test. A power
supply with line and load regulator capability of 10 millivolts
(mV) or .03%, recovery time of 100 microseconds maximum and root
mean square ripple and noise not exceeding 1.0 mV shall be used
to apply 25 0.1 vdc to terminal "B" and "E" of the solenoid (do
not energize the solenoid for more than 5 seconds).
4.5.3 Functioning test. Feeders shall be tested for
functioning requirement (3.4.17) using M134 (GAU-2B/A) gun, or
contractor designed Government approved test equipment which
simulates the function of the gun. Two belts of 150 rounds each
of linked dummy ammunition shall be used for testing each feeder.
The feeder shall be accelerated up to a feeding steady state rate
of 4,000 to 4,400 rounds per minute with a maximum acceleration
time of .5 seconds from the start of gun rotation to a 4,000
rounds per minute rate of fire. Clearing action shall be
initiated at approximately the 50th and 100th round of each belt
and power shall be removed from the drive motor .150 .015
seconds after the feeder solenoid is de-energized. The feeder
solenoid shall not be energized for more than five seconds at any
one time. Instrumentation shall be of the contractor's design
and shall be such that the steady state rate of the feeder and
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