NAVY A-A-59216-1998 DITCHING MACHINES BOOM TYPE CRAWLER-MOUNTED DED [Superseded NAVY OO-D-2747 CANC NOTICE 1 NAVY OO-D-2747]《DED履带式安装的开沟机[取代 海军 OO-D-2747 CANC 公告1 海军 OO-D-2747]》.pdf
《NAVY A-A-59216-1998 DITCHING MACHINES BOOM TYPE CRAWLER-MOUNTED DED [Superseded NAVY OO-D-2747 CANC NOTICE 1 NAVY OO-D-2747]《DED履带式安装的开沟机[取代 海军 OO-D-2747 CANC 公告1 海军 OO-D-2747]》.pdf》由会员分享,可在线阅读,更多相关《NAVY A-A-59216-1998 DITCHING MACHINES BOOM TYPE CRAWLER-MOUNTED DED [Superseded NAVY OO-D-2747 CANC NOTICE 1 NAVY OO-D-2747]《DED履带式安装的开沟机[取代 海军 OO-D-2747 CANC 公告1 海军 OO-D-2747]》.pdf(6页珍藏版)》请在麦多课文档分享上搜索。
1、 A-A-5922b W 9038054 0000329 497 = INCH-POUND A-A-5 92 1 6 May 18.1998 SUPERSEDING March 23, 1991 00-D-2747 COMMERCIAL ITEM DESCRIPTION DITCHING MACHINES, BOOM TYPE; CRAWLER-MOUNTED, DED The General Services Administration has authorized the use of this commercial item description for all Federal ag
2、encies. 1. SCOPE. This commercial item description (CID) covers commercial model diesel-engine- driven ED), self-propelled, boom type, crawler mounted ditching machine. The ditching machines are intended for use such as ditching, excavating for building foundations, drainage, and pipeline ditches at
3、 federal facilities. This CID covers only one classification of ditching machines. 2. SALIENT CHARACTERISTICS. 2.1 Description. The ditching machine consist of a power plant, power train, digging boom and chain, buckets or cutters or both, spoil conveyor, framework, and crawlers. 2.2 Standard commer
4、cial Product. The ditching machines shall, as a minimum, be in accordance with the requirements of this commercial item description and shall be the manufacturers standard commercial product. Additional or better features which are not specifically prohibited by this commercial item description but
5、which are a part of the manufacturers standard commercial product, shall be included in the ditching machines being furnished. A standard commercial product is a product which has been sold or is being currently offered for sale on the commercial market through advertisements or manufacturers catalo
6、gs, or brochures, and represents the latest production model. Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any data which may improve this document should be sent to: Commanding Officer (Code 15E2), Naval Construction Battalion Center, 1000 23rd Avenue, Port H
7、ueneme, CA 93043-4301. AMSC N/A FSC 3805 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- A-A-592Lb = 9018054 0000320 109 A-A-592 16 2.3 Safety. Rotating or reciprocating parts and parts subject to high operational temperatures, that are of a nature
8、or are located as to be or become a hazard to the safety of the operating personnel, shall be insulated, enclosed, or guarded. The ditching machine shall have Rollover Protection Structure (ROPS) to conform with the Society of Automotive Engineers SAE J 1040 and 29 CFR 1926.1000 and comply with appl
9、icable Occupational Safety and Health Administration (OSHA) regulations in effect at time of manufacture. 2.4 Interchangeability. Ail units of the same classification furnished with similar options under a specific contract shall be identical to the extent necessary to ensure interchangeability of c
10、omponent parts, assemblies, accessories, and spare parts. 2.5 Operational requirements. The ditching machine shall be capable of operating satisfactorily in ambient temperatures from O degrees Fahrenheit (OF) up to 125 OF (- 18 degrees Celsius (“C) up to 52 OC). 2.6 Performance. The ditching machine
11、 shall be capable of digging into various earth formations a ditch up to 24 inches (609.6 millimetre (mm) in width, and: a. Not less than 6 feet (1.8 metre (m) deep in firm clay soil at a digging rate of not less than 5 feet per minute (Wmin) (25.4 m per second (m/s); b. Not less than 8 feet (2.4 m)
12、 deep in clay-loam soil at a digging rate of not less than 3 ftfmin (15.2 m/s) or, c. Not less than 6 feet (1.8 m) deep in clay-gravel soil at a digging rate of not less than 4 Wmin (20.3 ds). In addition to the above, the digging machine, when equipped with special digging teeth (see 2.17) shall al
13、so be capable of digging coral, frozen, or hard ground at a slower rate of speed. The crowding speed shall be individually selected by the operator. The discharge conveyor shall be capable of depositing spoil at a distance sufficient to prevent reentry of spoil into the trench. The ditching machine
14、shall have a transporting height of not more than 146 inches (3 708 mm) with boom not less than 6 inches (152 mm) above ground. 2.6.1 Travel speeds. The ditching machine shall have hydrostatic track drive with infinitely variable forward and reverse speeds or three or more travel speeds forward and
15、one reverse. 2.6.2. Digging speeds. The ditching machine shall have a continuously variable digging (crowding) speeds from O to not less than 6 fvmin (30.5 m/s) at engine governed speed. i 2.7 Diaojna boom. The boom shall be provided with a safe, accessible and adequate method of adjusting the diggi
16、ng chain. Hydraulic cylinders for lifting the boom must provide enough down pressure to support rear of unit. A hydraulic hoist, operating independently of the other drives, shall be provided to enable the operator to accurately regulate the digging depth and to raise the boom into travel position.
17、2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- A-A-57216 m 7038054 0000321i 045 m A-A- 5 92 1 6 2.8 Dignc - chain. The digging chain shall be constructed so each bucket or cutter may be removed individually. An overload safety release between the
18、 driving mechanism and the digging chain shall be provided. The diggng chain shall have means for reversing the direction of travel for cleaning purposes. Means for adjusting the digging chain shall be provided. 2.9 Buckets. When digging buckets are provided, they shall be of the self-cleaning desig
19、n which will remove the spoil from the bucket either by centrifugal force, snap action, or positive action of a wiper plate. The ditching machine shall be equipped with buckets and teeth to cut trenches, one at a width of not less than 18 inches (457.2 mm), and one at a width of not less than 24 inc
20、hes (609.6 mm). The 24-inch (609.6 mm) cutting width requirement may be met with bolted-on side cutters. The teeth shall be of the quick interchangeable insert type. Replacement of teeth shall be accomplished without the use of special tools. 2.10 Cutters. When digging cutters are provided, they sha
21、ll cut trenches, one at a width of not less than 18 inches (457.2 mm), and one at a width of not less than 24 inches (609.6 mm). The cutters shall be of the interchangeable type. 2.11 Cleanup scrauer. Vertical boom type ditching machine, when furnished, shall be equipped with a cleanup scraper (cmmb
22、er) which will effectively clean loose spoil spillage from the bottom of the trench. The scraper shall have an automatic trip or hydraulic fold-up option from the operators location to release obstacles. 2.12 Spoil conveyor. The spoil conveyor shall be individually controlled, dischargeable to eithe
23、r side, from the operators seat, and belt speed so controlled as to provide the correct operational speed to give maximum or minimum discharge. Means shall be provided to align conveyor and pulleys at right angles with center line of belt, when end pulleys are used for tension adjustment. 2.13 Spoil
24、 convevor belt. The spoil conveyor belt shall be adequate width to handle the spoil while digging at maximum depth and maximum crowding speed. The carrying side of the belt shall be either of the cleat or trough type surface. 2.14 Crawlers track. The crawlers track shall have a smooth faced, forged,
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