MIL-DTL-13791G
4.10.18 High temperature stall. To determine conformance to 3.5.7.4.8, the distributor, with breaker
apparatus at point of actuation, shall be placed in a test chamber at 160 5ºF. After the temperature has
stabilized, the test chamber shall be shut off, including air circulating fans, and the chamber kept closed.
The distributor shall immediately be energized from two 6TN batteries connected in series. The batteries
shall be fully charged, in good condition, with electrolyte having a corrected specific gravity of 1.280
.005 at 77ºF. The distributor shall be energized in this manner for 6 hours.
4.10.19 Low temperature stall. To determine conformance to 3.5.7.4.9, the distributor with breaker
apparatus at the point of actuation, shall be placed in a test chamber at -65º 5ºF for 24 hours. The
distributor shall be energized from two 6TN batteries connected in series. The batteries shall be fully
charged, in good condition, with electrolyte having a corrected specific gravity of 1.280 .005 at 77ºF.
The distributor shall be energized in this manner for 6 hours.
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as
specified in the contract or order (see 6.2). When packaging of materiel is to be performed by
DoD or in-house contractor personnel, these personnel need to contact the responsible packaging
activity to ascertain packaging requirements. Packaging requirements are maintained by the
Inventory Control Point's packaging activities within the Military Service or Defense Agency, or
within the Military Service's system commands. Packaging data retrieval is available from the
managing Military Department's or Defense Agency's automated packaging files, CD-ROM
products, or by contacting the responsible packaging activity.
6. NOTES
6.1 Intended use. Distributors finished under this specification are intended for use in military motor
vehicles, or other military equipment requiring waterproof ignition system.
6.2 Acquisition requirements. Acquisition documents should specify the following:
a. Title, number, and date of this specification.
b. PIN see 1.2.
c. Quantity required.
d. Whether first article inspection is waived (see 3.2.1).
e. Packaging requirements (see 5.1).
6.3 Definitions.
6.3.1 Point of actuation. Point of actuation is that point on the circumference of the distributor
actuating device (see 6.3.2) at which current is actuates in the secondary circuit.
6.3.2 Distributor shaft actuating device. Distributor shaft actuating device is that portion of the
distributor that operates the mechanism that actuates current in the secondary circuit.
6.3.3 Breaker point design. Distributors in which the secondary circuit is actuated by a switch
(contact set) operated by a positive contact with the distributor actuating device (cam), whether or not the
switch is in primary circuit should be referred to as "breaker point design" (class 1).
6.3.4 Breakerless design. Distributors in which the secondary circuit actuation is induced by various
non-mechanical means should be referred to as "breakerless design" (class 2).
6.3.5 Recovered materials. "Recovered materials" means materials that have been collected or
recovered from solid waste (see 6.3.6).
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