SAE AS 85376-2002 Stand Shipboard Helicopter Maintenance《用于直升机维修的舰载架台》.pdf

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1、_ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising there

2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2017 SAE International All rights reserved. No part of this p

3、ublication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-497

4、0 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/standards.sae.org/AS85376 AEROSPACE STANDARD AS85376 Issued 2002-02 Reaffirmed 2017-11 Stand, Shipboard, Helicopt

5、er Maintenance FSC 4920 RATIONALE AS85376 has been reaffirmed to comply with the SAE Five-Year Review policy. NOTICEThis document has been taken directly from U.S. Military Specification MIL-S-85376A and contains only minor editorial and format changes required to bring it into conformance with the

6、publishing requirements of SAE technical standards. The initial release of this document is intended to replace MIL-S-85376A. Any part numbers established by the original specification remain unchanged.The original Military Specification was adopted as an SAE standard under the provisions of the SAE

7、 Technical Standards Board (TSB) Rules and Regulations (TSB 001) pertaining to accelerated adoption of government specifications and standards. TSB rules provide for (a) the publication of portions of unrevised government specifications and standards without consensus voting at the SAE Committee lev

8、el, and (b) the use of the existing government specification or standard format.Under Department of Defense policies and procedures, any qualification requirements and associated qualified products lists are mandatory for DOD contracts. Any requirement relating to qualified products lists (QPLs) has

9、 not been adopted by SAE and is not part of this SAE technical document.1. SCOPE:1.1 Scope:This specification covers a helicopter maintenance stand used by personnel aboard aviation capable ships.2. APPLICABLE DOCUMENTS:2.1 Government documents:2.1.1 Specifications and standards: Unless otherwise sp

10、ecified, the following specifications and standards of the issue listed in that issue of the Department of Defense Index of Specifications and Standards (DODISS) specified in the solicitation form a part of this specification to the extent specified herein.SPECIFICATIONSFEDERALQQ-A-200/9 Aluminum Al

11、loy Bar, Rod, Shapes, Tube and Wire, Extruded, 6063QQ-A-250/11 Aluminum Alloy 6061, Plate and SheetWW-T-700/6 Tube, Aluminum Alloy, Drawn, Seamless, 6061MMM-A-134 Adhesive, Epoxy Resin, Metal to Metal Structural, BondingPPP-B-601 Boxes, Wood, Cleated-PlywoodPPP-B-621 Box, Wood, Nailed and Lock-corne

12、rMILITARYMIL-C-5541 Chemical Conversion Coatings on Aluminum and Aluminum AlloysMIL-R-5674 Rivet, Structural, Aluminum Alloy, Titanium ColumbiumMIL-W-22248 Weldment, Aluminum and Aluminum AlloyMIL-C-22751 Coating System, Epoxy-Polyamide, Chemical and Solvent Resistant, Process for Application ofMIL-

13、P-23377 Primer Coatings: Epoxy-Polyamide, Chemical and Solvent ResistantMIL-N-25027 Nut, Self-locking, 250F, 450F, and 800FSTANDARDSFEDERALFED-STD-595 ColorsSAE INTERNATIONAL AS85376 Page 2 of 13_ 2.1.1 (Continued):MILITARYMIL-STD-129 Marking for Shipment and StorageMIL-STD-130 Identification Markin

14、g of US Military PropertyMS17829 Nut, Self-Locking, Hexagon, Regular Height 250F, (Nonmetallic Insert), Non-Corrosion-Resistant SteelMS17985 Pin, Quick-release, Self-retaining, Positive Locking, Single Acting (T) HandleMS21044 Nut, Self-locking, Hexagon Regular Height, 250F, 125 ksi Ftu and 60 ksi F

15、tu (Asg)MS24380 Caster, IndustrialAN3 Bolt and Machine, AircraftAN6 Bolt and Machine, Aircraft(Copies of specifications, standards, handbooks, drawings, and publications required by manufacturers in connection with specific acquisition functions should be obtained from the contracting activity or as

16、 directed by the contracting officer.)2.1.2 Other Government documents, drawings, and publications: The following other Government documents, drawings, and publications form a part of this specification to the extent specified herein.NAVAIRENGCENMPR 1212 Formulation and Processing of Polyurethane Ty

17、pe Compound for Moulding of Parts With or Without Metal Inserts for Impact Resistance(Application for copies should be addressed to the Naval Air Engineering Center, Ship Installations Engineering Department, Code 912, Lakehurst, New Jersey 08733).2.1.3 Order of precedence: In the event of a conflic

18、t between the text of this specification and the references cited herein, the text of this specification shall take precedence.3. REQUIREMENTS:3.1 First article inspection:When specified, a sample shall be subjected to first article inspections (see 4.2 and 6.3).3.2 Materials:The front frame, rear f

19、olding frame, braces, and the spreader latch assembly shall be constructed of extruded aluminum alloy conforming to QQ-A-200/9. The rails shall be constructed of drawn aluminum tubing conforming to WW-T-700/6 Type I.SAE INTERNATIONAL AS85376 Page 3 of 13_ 3.2.1 Treads: Each tread shall be constructe

20、d of open-grip aluminum alloy 6061 conforming to QQ-A-250/11 or aluminum alloy 6063. (Morton Mfg. Co., 5th and Church Streets, P.O. Box 640, Libertyville, IL 60048) or equivalent (see 3.4.2).3.2.2 Platform: The platform shall be constructed of tread-grip aluminum alloy 6061 conforming to QQ-A-250/11

21、 or aluminum alloy 6063.3.3 Design and construction:The work platform shall be 80 2 inches high. The stand shall have hand rails on the front frame parallel to the channels, removable guard rails on the work platform and a folding rear frame (see Figure 1). The stand shall be equipped with a chain.

22、The chain shall latch and unlatch the front and rear frames when in the collapsed position. The chain shall be removable without the use of tools. The stand shall be capable of supporting not less than 1000 pounds. The stand shall weigh not more than 85 pounds. Lighten holes are acceptable where the

23、y do not effect the structural strength of the stand. All weldments shall conform to MIL-W-22248 class 3.3.4 Dimensions:3.4.1 Front frame: The front frame shall be fabricated from aluminum alloy channels (5 x 2 x 0.1875 inch). The frame shall be at an angle of 60(+0, -5) degrees from the horizontal

24、when in the open position. It shall be 18 3 inches wide at the top and 24 3 inches at the bottom. There shall be two 5 x 2 x 0.1875 inch side rail channels. The channels shall open to the outside of the stand. The frame shall be welded to the work platform.3.4.1.1 Tread Spacing: There shall be nine

25、(9) treads equally spaced on the front frame. The treads shall be 4.875 0.0625 inches deep and 0.125 inch thick with 2 inch flanges. Treads shall be fabricated from open-grip tread or equivalent. Treads shall be fastened to the front frame with bolts conforming to AN3 and nuts conforming to MS21044

26、(see 4.4.2).3.4.1.2 Braces: Two 45 cross braces shall be fabricated from 1 x 1x 0.1875 inch aluminum alloy angle. Each brace shall be secured to the underside of the lowest tread by aluminum alloy rivets conforming to MIL-R-5674 or bolts conforming to AN3 and nuts conforming to MS21044 or by welding

27、 (See Figure 1).3.4.1.3 Casters: The stand shall be equipped with two (2) rigid casters conforming to MS 24380-6RC. Each caster shall be fastened to two (2) 0.5 x1.0 inch aluminum alloy rectangular bars conforming to QQ-A-200/9. The bars shall be welded to the back of the front channels (see Figure

28、1). The casters shall be secured to the bars by four (4) bolts conforming to AN6C5 and four (4) self-locking nuts conforming to MS17829-6F.3.4.2 Work Platform: The work area of the platform shall be 18 by 18 inches square and 0.125 inches thick. The platform shall be constructed of tread-grip or equ

29、ivalent. The platform shall be inspected and tested as specified in 4.4.1 and 4.4.2.SAE INTERNATIONAL AS85376 Page 4 of 13_ 3.4.3 Rear Folding Frame: The rear folding frame shall be fabricated from aluminum alloy channel (3 x 1 x 0.125 inch) (see 4.4.1.1). The channels shall face the inside of the s

30、tand. The frame shall be provided with type CE, phenolic wear bushings.3.4.3.1 Horizontal Cross Braces: The rear frame shall contain three (3) 3 x 1 x 0.125 inch extruded channel horizontal cross braces (see Figure 1). Each brace shall be fastened to the side channels with solid aluminum alloy rivet

31、s conforming to MIL-R-5674 or bolts conforming to AN3 and nuts conforming to MS21044.3.4.3.2 45 Cross Braces: Two 45 cross braces shall be fabricated from 1 x 1 x 0.1875 inch aluminum alloy angle. Each brace shall be secured to the underside of the lowest horizontal brace by aluminum alloy rivets co

32、nforming to MIL-R-5674 or bolts conforming to AN3 and nuts conforming to MS21044 (see Figure 1).3.4.4 Spreader Latch Assembly: The stand shall be equipped with a spreader latch assembly that shall be attached to the front and rear frames to provide stability (see Figure 2). It shall be fabricated fr

33、om aluminum alloy angle (1.5 x 1.0 x 0.1851). The angle shall not extend beyond the outside of the side rails when in the open or collapsed position. The latch shall be locked in the open position using a quick release pin conforming to MS17985. The pin shall be secured to the stand with a vinyl coa

34、ted corrosion resistant wire rope (to prevent loss of the pin). The hole in the angle (to house the pin) shall contain a stainless steel grommet (see Figure 2).3.4.5 Tiedown rings: The stand shall be equipped with four (4) tiedown rings, one ring on each of the four channels. The rings shall be loca

35、ted between the center horizontal cross braces (rear of frame) and the spreader latch assembly. Each ring shall have a 0.375 inch thread with a 2 inch inside diameter eye. The rings shall be fastened to the frame using a flat washer and a self-locking nut conforming to MIL-N-25027 (see 4.4.2.1).3.4.

36、6 Shoes: Safety stand shoes shall be fabricated from 0.093 inch thick corrosion resistant steel (see Figure 3 and Figure 4). Polyurethane conforming to NAVAIRENGCEN MPR 1221 formula #6 0.75 inch thick shall be attached to the bottom of the shoe with an adhesive conforming to MMM-A-134 (see 4.4.2.2).

37、 The shoe shall be attached to the bottom of the frame with a 0.3125 inch diameter corrosion resistant steel bolt. The shoe shall pivot around the bolt conforming to AN3. The bolt shall be secured with a self-locking nut conforming to MS21044. The shoe shall be 1.5 0.25 inches wide and 6 0.25 inches

38、 long.3.4.7 Rails:3.4.7.1 Hand Rails: The front frame shall have two hand rails one on each side of the frame. The rails shall be fabricated from 1.25 inch diameter x 0.035 inch thick aluminum alloy tubing conforming to WW-T-700/6 Type I. The rails shall be fastened to the top of the channels by wel

39、dment (see Figure 4).SAE INTERNATIONAL AS85376 Page 5 of 13_ 3.4.7.2 Guard Rails: The removable guard rail shall be in three sections. The rail shall be installed on three sides of the work platform. They shall be fabricated from 1.25 inch diameter x 0.035 inch thick aluminum alloy tubing conforming

40、 to WW-T-700/6 Type I. The height of the rail shall be 33.5 0.5 inches from the platform. The back section of the rail shall be attached to the side sections with quick release pins. The guard rails shall be capable of being removed from the platform by one person without the use of tools. The rails

41、 shall be housed in four sockets, two on each side of the work platform. The distance between the sockets shall be 16 0.25 inches (see Figure 1). They shall be secured by four 0.187 inch diameter quick release pins conforming to MS17985. Each socket shall have a positive stop at the bottom. The pins

42、 shall be secured to the work platform with a vinyl coated corrosion resistant wire rope to prevent loss of the pins (see 4.4.1.3).3.5 Placards:Placards shall be provided with tie-down instructions.3.6 Storage:The stand shall fold for storage such that the rear frame and front frame butt against eac

43、h other (see 4.4.1.4).3.7 Surfaces:All exposed surfaces shall be free from sharp edges, burrs or other safety hazards. The surfaces shall be treated with Alodine (or the equivalent) to retard corrosion. All surfaces shall be coated and painted.3.7.1 Finishes and Color: All surfaces shall be coated i

44、n accordance with MIL-C-5541 Class 1A. The primer coat shall be in accordance with MIL-P-23377 and the topcoat shall be in accordance with MIL-C-22751. The color of the stand shall be in accordance with FED-STD-595; gloss yellow (number 13538).3.8 Identification:3.8.1 Nameplate: A nameplate permanen

45、tly and legibly marked for identification in accordance with MIL-STD-130, shall be securely attached to a side rail channel. The nameplate shall contain the following information:STAND, HELICOPTER MAINTENANCECAPACITY - 300 POUNDSSPECIFICATION - MIL-S-85376(AS)STOCK NO. - (AS APPLICABLE)PART NO. - M8

46、5376ACONTRACT OR ORDER NO. -MANUFACTURERS NAME OR TRADEMARKU.S. PROPERTYSAE INTERNATIONAL AS85376 Page 6 of 13_ 3.9 Workmanship:Workmanship shall be of a quality to ensure delivery of a stand that is free from defects resulting from defective material, improper manufacturing or assembly practices.4.

47、 QUALITY ASSURANCE PROVISIONS:4.1 Repsonsibility for inspection:Unless otherwise specified in the contract, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the specification where s