 |
|||
|
Page Title:
Setback weight return capability. |
|
||
| ||||||||||
|
|  MIL-F-48877A (AR)
4.5.6.11 Load test of pillars. Apply the required axial
load perpendicular to the inner plate and in such a direction as
to test the assembly of the pillars to the inner plate and outer
plate. The required force shall act against the inner plate.
Any pillars that do not comply with the drawing requirement shall
be classed defective.
4.5.7 Pull-off test of insulator. Secure the setback
weight in a holding fixture. An axial pull of a minimum of two
pounds shall be applied to the pin assembly. Any insulator that
separates from the switch pin shall be classed defective.
4.5.8 pull-off test of switch pin Secure the setback
weight in a holding fixture. An axial pull of a minimum of five
pounds shall be applied to the pin assembly. Any pin assembly
that separates from the setback weight shall be classed
defective.
4.5.9 Setback weight return capability. The S&A in the
safe position shall be assembled to the test equipment in
accordance with 4.4.3. The S&A shall be securely held in place
during a 20 pound load test with a hole down force. The 20 pound
load shall be applied at an average rate of 300 50 inches per
minute to the setback weight. It is mandatory that the setback
weight maintain contact with the 20 pound load applicator until
fully bottomed. The 20 pound force shall then be removed. S&A'S
failing to completely return to the fully safe position shall be
classed defective and removed from the lot. Defect standards for
verification of the inspection process shall be in accordance
with 4.4.4.2 and 4.4.4.3. Defect standards for use with
automatic equipment shall be as follows:
Units with setback weights which bind when depressed and
a.
remain in the depressed condition.
b. Units with setback weights which start to return but do
not completely return to the original locking position.
c.
Units with setback weights which return from the
depressed condition at a slower than normal rate causing
rejection.
4.5.10 Rotor reset capability. The S&A shall be assembled
to the test fixture in accordance with 4.4.3. The rotor shall be
rotated to a position at least 26 degrees, but not more than 35
degrees from the fully safe position and released. Observation
shall be made for rotor return to the fully safe position. S&A's
failing to comply with the specified requirement shall be classed
defective and removed from the lot, This test may be run with
the S&A loaded or unloaded.
67
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals