1、- MIL-H-Ll558bA (3) LO W 377iOb 0300LL 5 -*i, MIL-H-45586A (AR) AMENDMENT 3 SUPERSEDING AMENDMENT 2 13 December 1977 - MILITARY SPECIFICATION HOWITZER, LIGHT, TOWED, 105MM: M102 This amendment forms a part of Military Specification MIL-H-45586AI dated 10 March 1975, and is approved for use by all De
2、partments and Agencies of the Department of Defense. PAGE 2 2.1 Under “STANDARDS“ - change “MIL-STD-930“ to “MIL-STD-130“ Under “PUBLICATIONS“ - Delete the following: “IEL 8428300 - Inspection Equipment List Howitzer, Light, Towed, 105MM: M102“ Substitute the following “QEDL8428300 - Quality Enginee
3、ring Data List, Howitzer, Light, Towed, 105MM: M102“ PAGE 6 . 3.3.1.5 Delete in its entirety and substitute the following par ag raphs : “3.3.1.5 Foamed oil and contaminated oil. 3.3.1.5.1 Foamed oil.-After exercising the recoil mechanism 25 cycles by mechanical gymnastication, or after the 4 rounds
4、 of proof-firing, oil withdrawn slowly from the recoil mechanism into a straight sided glass beaker shall be in accordance with the following: Within the first minute after withdrawal, the oil shall be five percent or less foam by volume; when exposed to the atmosphere for 15 minutes the aeration bu
5、bbles shall disappear. in 4.5.3.2 and 4.5.3.5. Testing shall be as specified FSC: 1015 THIS BOCUMENT CONTAINS Y PAGES. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-V55bA (3) LO 9797306 0308012 7 U M IL-H- 4 5 5 86A AMENDMENT 3 (AR) 3.3.1.5.2
6、 Contaminated oil.-Within one to five minutes, after exercising the recoil mechanism 25 cycles by mechanical gymnastication, or after the 4 rounds of proof-firing, a minimum of two ounces of oil shall be removed from the purge hole in the recuperator cylinder into a straight sided glass beaker . Met
7、allic particles allowable in the oil sample shall not exceed 400 micron in size. 3.3.4.2 Delete the markings .“ in its Testing shall be as specified in 4.5.3.2.“ PAGE 9 third sentence: “Variable in trammel entirety . PAGE 10 3.3.5 Delete the second sentence: “The trammel marking .I in its entirety.
8、PAGE 14 4.5.3.2 Delete in its entirety and substitute the following: “4.5.3.2 Recoil mechanism and gymnastication testinq.-Each completely assembled recoil mechanism shall be mechanically gymnasticated and tested for the performance characteristics of 3.3.1 and 3.3.1.1 thru 3.3.1.6 using the test me
9、thod specified in 4.6.1 and 4.6.1.1 thru 4.6.1.6 respectively. Failure of the recoil mechanism to meet the requirements shall be cause for * rejection. When five consecutive recoil mechanisms have passed the contaminated oil test (see 4.6.16) on each order, the frequency of testing for contaminated
10、oil can be reduced to one randomly selected from each 25 produced. If a rejection occurs, revert back to original testing procedure. PAGE 16 4.5.5.1 Delete “List of Inspection Equipment IEL8428300“ and substitute: “Quality Engineering Data List QEDL8428300.“ 4.6.1.5 Delete “also, the oil withdrawn s
11、hall be inspected for contaminated oil.“ And the last sentence in its entirety. Add: II (see 3.3.1.5.1)“ after the words “15 minutes.“ Page 2 of 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-45586A (AR) AMENDMENT 3 4.6.1.6 Add the following
12、 paragraph: t4.6.1.6 Contaminated oil test.-Within one to five minutes after the recoil mechanism has been mechanically qvmnasticated. or after proof-firing, drain two ounces of oil ?roi the purge hole of the recuperator cylinder. The largest metallic particle allowable in the oil sample shall not e
13、xceed 400 micron in size (see 3.3.1.5.2) .“ PAGE 20 *4.6.3.4 Change paragraph 3.3.3.1.2 in the last line to *4.6.3.5.b Change paragraph 3.3.3.1.4 in line 3 to 3.3.3.5 and paragraph 3.3.3.3. change paragraph 3.3.3.1.3 in line 5 to 3.3.3.4. PAGE 21 4.6.4 Delete in its entirety and substitute the follo
14、wing paragraph: “4.6.4 Proof-firing test.-Proof firing of carriage shall Proof-firing shall be performed by the consist of firing both standard rounds and specific pressure rounds of ammunition. Government (see 6.2). The carriage shall be proof-fired in accordance with Table III of 3.3.4.2, or in ac
15、cordance with simultaneously with the recoil mechanism. Visual examination for cracks, weld failures, deformation and other forms of damage shall be conducted on each unit at the conclusion of the firing program. 4.6.5 Delete in its entirety and Substitute the following par ag raph : . Table II of 3
16、.3.4.1 in event proof-firing is accomplished “4.6.5 Road test.-The completed carriage (less dummy round) shall be coupled to a vehicle equipped with standard pintle to determine compliance with the requirements specified in 3.3.5. Visual examination for cracks, weld failures, deformations and other
17、forms of damage shall be conducted. PAGE 22 5.1 In line 1 after word “complete“ add the word “howitzer“. Page 3 of 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-H-LI55bA (3) LO 7777706 03OOL4 O I i MIL-H- 4 5 586A (AR) AMENDMENT 3 5.2 First
18、sentence delete: “Shall“ and substitute: “A complete howitzer shall. . .I. NUTE: The margins of this amendment are marked with an asterisk to indicate where changes from the previous amendment were made. This was done as a convenience only and the Government assumes no liability whatsoever for any i
19、naccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the last previous amendment. Custodian: ARMY-AR NAVY-MC Preparing Activity: ARMY -AR Project Number: 1015-A274 Page 4 of 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
