DLA A-A-59662-2001 CHAIN SAW (PORTABLE PNEUMATIC-MOTOR-DRIVEN) [Superseded DLA GGG-S-62 D CANC NOTICE 1 DLA GGG-S-62 D DLA GGG-S-62 B DLA GGG-S-62 A]《(便携式风动马达机驱动)链锯 [代替 DLA GGG-S-6.pdf
《DLA A-A-59662-2001 CHAIN SAW (PORTABLE PNEUMATIC-MOTOR-DRIVEN) [Superseded DLA GGG-S-62 D CANC NOTICE 1 DLA GGG-S-62 D DLA GGG-S-62 B DLA GGG-S-62 A]《(便携式风动马达机驱动)链锯 [代替 DLA GGG-S-6.pdf》由会员分享,可在线阅读,更多相关《DLA A-A-59662-2001 CHAIN SAW (PORTABLE PNEUMATIC-MOTOR-DRIVEN) [Superseded DLA GGG-S-62 D CANC NOTICE 1 DLA GGG-S-62 D DLA GGG-S-62 B DLA GGG-S-62 A]《(便携式风动马达机驱动)链锯 [代替 DLA GGG-S-6.pdf(6页珍藏版)》请在麦多课文档分享上搜索。
1、Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any data that may improve this document should be sent to: Defense Supply Center Richmond (DSCR), ATTN: DSCR-VBD, 8000 Jefferson Davis Highway, Richmond, VA 23297-5610. AMSC N/A FSC 3695 DISTRIBUTION STATEMENT A. Ap
2、proved for public release; distribution is unlimited. INCH-POUND A-A-59662 5 June 2001 SUPERSEDING GGG-S-62D 24 October 1986 COMMERCIAL ITEM DESCTIPTION CHAIN SAW (PORTABLE, PNEUMATIC-MOTOR-DRIVEN) The General Services Administration has authorized the use of this commercial item description for typ
3、e I of GGG-S-62D by all federal agencies. 1. SCOPE. This commercial item description covers general purpose portable chain saws that are pneumatic-motor-driven and have the capability of being used underwater. Each chain saw shall essentially consist of a power unit, controls, power transmission hou
4、sing, cutter guide bar, cutting chain, chain-adjusting device, oiling device, and operating handles. 2. CLASSIFICATION. The chain saw shall be of the general purpose type. 3. SALIENT CHARACTERISTICS 3.1 Materials. The chain saw shall be new (not a prototype) and one of the manufacturers current prod
5、ucts capable of use in accordance with the performance requirements specified herein. Materials shall be as specified or when not specified shall be selected by the supplier and shall be subject to all provisions specified herein. 3.1.1 Material deterioration prevention. The chain saw shall be fabri
6、cated from compatible materials, inherently corrosion resistant or be treated to provide protection against the various forms of corrosion and deterioration that it may be exposed in any of the applicable operation and storage environments. 3.1.2 Dissimilar metals. Dissimilar metals shall not be use
7、d in intimate contact with each other unless protected against galvanic corrosion. 3.2 Effective cutting capacity. The minimum effective cutting capacity shall be as defined by the circular diameter of logs to be cut. The effective cutting capacity shall not be less than 18 inches or more than 40 in
8、ches as specified by the procuring activity in the purchase order or contract (see 7.3(b). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59662 2 3.3 Weight. The empty weight of the chain saw shall not be more than 19 pounds. Empty weight is the
9、 weight of the complete power unit not including the weight of the guide bar, chain, spikes, fuel, chain lubricating oil or accessories which are optional or sold separately. 3.4 Endurance performance. The chain saw shall have the minimum capability to be operated for 100 hours under full load at th
10、e minimum horsepower specified with the integral oiling device of the air motor serving as the only source of lubrication. The saw shall operate for 100 hours without malfunction or damage to the saw or permanent deformation of components or parts. 3.5 Submersion performance. The chain saw shall hav
11、e the minimum capability of making ten successive cuts in an 18-inch-diameter log submerged in water. Six of the cuts shall be crosscuts through the entire log and four shall be rip cuts for a distance of not less than 3 feet through the entire log while the saw is completely submerged. The saw shal
12、l complete the cuts without malfunction or damage to the saw or permanent deformation of components. 3.6 Air motor. The air motor shall be of the rotary (vane) positive displacement type and shall develop 3.5 or more horsepower with air consumption not greater than 90 cubic feet per minute (cfm) at
13、90 pounds per square inch (psi). A spring-loaded (closed position), air-control valve shall be incorporated in the operating handle. The air motor shall withstand 100 hours of full-load operation without loss of efficiency. The air inlet and exhaust shall have 3/4 inch, internal-taper, pipe threads
14、for attaching 3/4-inch pneumatic hose fittings with the air exhaust and inlet ports permanently identified. The exhaust shall be directed away from the operator. 3.7 Power-transmission housing. The chain saw shall have a power-transmission housing that contains the clutch, driving sprocket, and form
15、s cutter guide bar head. The transmission housing shall be fitted with watertight seals and the oil reservoir shall be fitted with an unvented cap to prevent the entry of water. 3.8 Enclosures. Enclosures with integral reservoirs of lubricant shall be equipped with a means for filling the enclosure
16、with lubricant. Enclosures filled with lubricant shall not permit loss of lubricant with the chain saws in any orientation. Accessibility to the filler shall be obtained without the removal or adjustment of parts or accessories. 3.9 Chain oiling system. The saw shall be provided with an automatic ch
17、ain oiling system and oil reservoir that shall have sufficient capacity for not less than 15 minutes of sawing operations. The filler-opening cap shall be a spill proof type, plainly marked to indicate chain oil, and be securable against oil loss. 3.10 Chain drive sprocket. The chain drive sprocket
18、shall be heat treated to a hardness of not less than 54 Rockwell C and shall withstand the performance requirements specified herein. The sprocket pitch shall match the pitch of the saw chain and the sprocket diameter shall be matched to the guide bar width to provide a smooth chain entry. 3.11 Guid
19、e bar. The guide bar shall be grooved and contoured to insure smooth chain travel. The grooves shall be centered throughout the bar length, funneled to permit smooth chain entry, and be of the correct width and depth for the cutter chain furnished. The bar rails shall be heat Provided by IHSNot for
20、ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59662 3 treated to a hardness of not less than 55 Rockwell C with the remainder of the bar not less than 35 Rockwell C. When laminated bars are furnished, the laminations shall be secured by plug or spot welds, spaced not
21、 less than 1 inch on center around the bar rails and nose section and not greater than 1-1/2 inches in the remainder of the bar or by copper braze. Sprocket nose guide bars shall be furnished unless otherwise specified. The sprocket wheels shall be supported by antifriction bearings. The sprocket sh
22、all be thin enough to pass through the cut and shall be replaceable without the use of special tools. A lubricating gun shall be supplied with the saw to lubricate the sprocket when specified (see 7.3(c) by the procuring activity in the purchase order or contract. In addition, bow guide bars or soli
23、d nose bars shall be furnished when specified (see 7.3(d). The nose shall have a built-up hard surfacing of 0.04-inch minimum thickness. 3.12 Chain-adjusting device. A chain-adjusting device shall be provided, to enable a positive extension of the guide bar for maintaining correct chain tension. The
24、 lug shall positively engage the guide bar and shall not become disengaged under any condition of operation as specified herein. The adjusting device shall have sufficient travel to permit removal of the cutter chain from the guide bar without disassembly of the chain or removal of the guide bar. 3.
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