Automatic shut-down systems test.

Page Title: Automatic shut-down systems test.
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MIL-D-63303B(AR)

g. With variable speed motor driving dispenser wheel at a

simulated 4 to 6 mph (6.4 to 9.7 kmph), launch twenty-five

(25) practice mines from each magazine.

The pattern width shall be observed for compliance with the

applicable requirement.

4.6.2.13.9 Automatic shut-down systems test. Critical (defect)

4.6.2.13.9.1 Jam arrest. Check launcher brake operation as

follows:

a. Mode selector switch in DISPENSE.

b. Density selector switch in MAX.

c. Pattern selector switch in JOG-CENTER.

Launch fifty (50) practice mines simultaneously from each

magazine and verify sensors are operational. Disconnect output

sensor and launch six (6) practice mines, one at a time, three (3)

from each magazine. Record the time required to stop launch wheel.

Continue running dispenser engine for thirty (30) minutes, then

launch four (4) additional mines, two (2) from each magazine with

output sensors disconnected, recording time necessary to stall

launcher wheel. The time for braking action shall be observed for

compliance with the applicable requirement.

4.6.2.13.9.2 Magazine shut-down. Start dispenser and operate

magazines in FIRE mode. Let launcher RPM decay to 790 by decreasing

engine throttle. Observe magazine for compliance with the

applicable requirement. In addition, launcher up to speed light on

OCP shall be off when magazines stop.

4.6.2.13.10 Pattern selections test. Test for pattern

selections as follows:

a. Mode selelctor switch in DISPENSE.

b. Density and pattern selector switches set for each

dispersion configuration in "D", "E", and "F" groups as

required.

c. With variable speed motor (see paragraph 4.6.2.13.1)

driving dispenser wheel at a simulated 2.5 mph (4 kmph) max.

launch twenty-five (25) practice mines from each magazine as

specified in (b) above for each pattern selection in the

groups, for compliance with the applicable requirement.

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