1、FiLITARY SPECIFICATION CONTROL, POWER SUPPLY: 10559261 This amendment forms a part of Military Specification MiL-C-l4866(M), dated 2 March 1970. Page 4, paragraph 3.3.2.5: Delete and substitute as follows: l3.3.2.5 Sealing. - With the power supply control initially pres- surized with nitrogen or air
2、 $0 5 f 1 pounds per square inch gage (psig), the loss of pressure shall not exceed 0.2 psig in 2 hours. I Page 7, Table IV, Item 307: Delete %mersion“ and substitute IS ea1 ing II . Page 8: Add paragraph 4.5.2.2.1 as follows: “1C. 5.2.2.1 Pressure tester. - Special test equipment (STE) in ccord- an
3、ce with Drawing 8565556, or equivalent, shall be provided to check the sealip4 cf the power supply control. II Page 9, paragraph 4.6.5 : Delete “and the tolerance requirements for vibration frequency measuring instruments shall not apply. Page 9, paragraph 4.6.5.1, NOTE: Delete “less than 7F“ and su
4、b- stitute “no greater than 3F“. Page 10, paragraph 4.6.5.2 (a) : Delete and substitute as follows: “(a) Test in accordance with Method 514.1, Procedure I of MIL-STD-810 for category (f) equipment, except that resonance search arid dwell on resonance shall not be required and the acceleration shall
5、not exceed + 4g anC! the max2mum excursion (double amplitude) shall be 0.5 inch.“ - Page 11, paragraph 4.6.5.4: li4, 6.5.4 Sealing. - Delete and substitute as follows.: Perform this test utilizing the STE specified in 45.2.2.1. ?.leasure the pressure loss over a minimum period of 120 minutes. the requirement of 3,3,2.5 is met. I Custodian: Preparing activity: Pressurize the power supply control as specified in 3,3.2.5. Verify that Army - M Army-Mu ?reject No. 1240-A522 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
