NAVY MIL-L-85896 (2)-1999 LADDER AIRCRAFT MAINTENANCE ALUMINUM THREE-WAY COMBINATION (STEP STRAIGHT AND EXTENSION) GENERAL SPECIFICATION FOR《一般规格铝三路组合飞机维修梯子(步骤 直接和扩展)》.pdf

1、9 0b 2115154 7TT I Part Number Storage height (Approximate) Maximum (fi) Stepladder standing height (Approximate) Maximum (fi) Extended standing height (Approximate) Maximum (fi) Weight (lb) (Approximate) MIL-L-85896(AS) AMENDMENT 2 30 September 1999 SUPERSEDING AMENDMENT 1 14 April 1993 class I II

2、m IV M85896-1 M85896-2 M85896-3 M85896-4 4 5 6 7 1 to 3 2 to 5 3 to 7 4 to 9 4 to 8 6 to 12 8 to 16 10 to 20 32 k2 39 +2 45 +2 56 $12 MILITARY SPECIFICATION LADDER, AIRCRAFT MAINTENANCE, ALUMINUM THREE-WAY COMBINATION (STEP, STRAIGHT AND EXTENSION), GENERAL SPECIFICATION FOR This amendment forms a p

3、art of MIL-L-85896(AS), dated 8 April 1988, and is approved for use by the Naval Air Systems Command, Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defense. 1.2 Delete and substitute: “1.2 Classification. Ladders shall be one of the following c

4、lasses: AMSC NIA 1 of5 FSC 5440 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-85896(AS) AMENDMENT2 Ladder Configuration Stepladder configuration Extended config

5、uration PAGE 3 Standing height for part numbers M85896-45 M85896-1 M85896-2 M85896-3 1to3fi 2to5ft 3to7ft 4to9fi f0.50 k0.50 f0.50 H.50 4to8ft 6to 12ft 8to16fi 10 to 20 ft 50.50 k0.50 k0.50 H.50 * 3.2.1.1 Delete and substitute: “3.2.1.1 Dissimilar metals. Dissimilar metals as defined in MIL-STD-889

6、shall be electrically insulated from one another to minimize or prevent galvanic corrosion. Insulation shaii be provided by an insulating barrier such as a coat of epoxy primer conforming to MIL-PRF-23377 or corrosion inhibiting sealant conforming to MIL-PRF-8 1733.” PAGE 4 3.3.2.1 Delete and substi

7、tute: “3.3.2.1 Stepladder standing heinht. The standing height range of the ladder in the stepladder configuration (see figure 5a) shall be those specified in table I.” 3.3.2.2 Delete and substitute: “3.3.2.2 Extended ladder standinn height. The standing height range of the ladder in the extended co

8、nfiguration (see figure 5b) shall be as specified in table I.” PAGE 5 Add the following table: TABLE I. Configuration standing heights. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-85896(AS) AMENDMENT2 Pari Number Weight 3.4 Delete and sub

9、stitute: “3.4 Weieht. The ladder assembly shall not exceed those values shown in table II.” TABLE II. Ladder weights. Class I II III IV M85896-1 M85896-2 M85896-3 M85896-4 32 S? lb 39 +2 lb 45 S Ih 56 +2 lh 4.3.2 Delete and substitute: “4.3.2 ZnsDection tests. The first article ladder shall be inspe

10、cted as specified in table I. Presence of one defect shall be cause for rejection.” 4.4.4 Delete and substitute: “4.4.4 Conformance inmection tests. Samples selected in accordance with 4.4.2 shall be tested as specified in table III.” PAGE 9 Add the following table: 3 Provided by IHSNot for ResaleNo

11、 reproduction or networking permitted without license from IHS-,-,-D 9999906 2LLSL57 409 = Inspection sequence 4.5.2 4.5.2.1 4.5.2.1.1 4.5.2.1.2 4.5.2.1.3 4.5.2.2 4.5.2.3.1 4.5.2.3.2 4.5.2.4 4.5.2.5 4.5.2.6 4.5.2.7 4.5.2.8 4.5.2.9 4.5.2-3.1 4.5.2.3.2 4.5.2.5 MIL-L-85896(AS) AMENDMENT2 I TABLE III. F

12、irst article and Quality conformance inmections sequence. Sample( s) Requirement paragraph First article Part Number Average deflection (inches) 3.1 3.7.4 3.7.4 3.7.4 3.7.4 3.7.1 3.7.2 3.7.2 3.7.3 3.7.5 3.3.5 3.3.9 3.3.8 Class I II III IV M85896-1 M85896-2 M85896-3 M85896-4 4.4 7.6 11.6 14.8 3.3.7.1

13、 Quality 3.7.2 Test modification Apply a load of 300 pounds Apply a load of 300 pounds Apply a load of 600 pounds PAGE 10 4.5.2.3.1, sixth sentence: Delete and substitute ?The maximum average deflection of both side rails shall not exceed those values in table IV.? PAGE 11 Add the following table at

14、 the top of the page: TABLE IV. Extended ladder maximum average - vertical deflection. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-8 5 896(AS) AMENDMENT2 NOTE: The margins of this amendment are marked with asterisks to indicate where chan

15、ges from the previous amendment were made. This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies 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. Preparing activity: Navy - AS (Project 5440-0002) 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-