MIL-DTL-0045585E (AR)
link assemblies shall be coupled together prior to inserting the simulated cartridge gages.
The simulated cartridge gages shall be inserted into the links so that the link teeth are
engaged in the labrinthine grooves of the driving bands. Each belt shall be laid on one
side on a level plane surface and drawn into its smallest circular arc with the nose tips of
the simulated cartridge gage pointing toward the center of the arc (see Drawing
11691396). Observation shall be made for deformation of parts. This test is a
non-destructive test. Parts shall be used for subsequent tests.
4.5.7 Butt fan test. Links shall be tested using the same procedure specified in
4.5.6 except that each belt shall be drawn into its smallest circle arc with the butt ends of
the simulated cartridge gage pointed toward the center of the arc (see Drawing
11691396). Observation shall be made for deformation of parts. This test is a
non-destructive test. Parts shall be used for subsequent tests.
4.5.8 Twist test. The test shall be conducted with the assembled belt attached by
the first link of the belt to an approved holding fixture of the contractor's design. The
holding fixture shall be attached to a rigid support in such a manner that will allow the
belt to hang freely vertically. A torque shall be applied by hand to the tenth round of the
free belt both in a clockwise and counterclockwise direction of rotation (see Drawing
11691396). Observation shall be made for evidence of partial or complete belt
separation, disassembly of cartridges from the links or deformation of parts. This test is a
non-destructive test. Parts shall be used for subsequent tests.
4.5.9 Free hinging test. Each belt shall be laid out horizontally to its full length
and one end shall be a drawn back upon the remainder of the belt until the belt is
completely reversed. One end of the reversed belt shall then be drawn back upon the
remainder of the belt until the belt is returned to its original position (see Drawing
11691396). Observation shall be made for the requirement of the applicable drawing.
This test is a non-destructive test. Parts shall be used for subsequent tests.
4.5.10 Tensile load test. Each belt shall be inserted into a test fixture and a tensile
load of 400 pounds shall be applied at a speed of 1 to 2 inches per minute on the center
line of the belt as specified on Drawing 11691396. Observation shall be made for the
requirement of the applicable drawing using Drawing 11018116 and 11018218. This test
is a destructive test. Parts so tested shall not be returned to the lot.
4.5.11 Breakaway force test. Each link of the sample shall be tested using test
equipment conforming to Drawing 11017981, 11018356, and 11691396. Links shall be
assembled to the test mandrel with the leaf springs of the links seated in the groove of the
mandrel. The test mandrel, with the assembled link, shall be inserted into the test fixture
and the load shall be applied to the link in the direction to strip the link from the test
mandrel. The maximum load required initially move the link shall be recorded as the
breakaway force. Observation shall be made for the requirement of the applicable
drawing. This test is a non-destructive test. Parts shall be used for, subsequent tests.
4.5.12 Stripping force test. Each link of the sample shall be tested using
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