A-A-52305 Auger, Earth, Boom MountedThis description covers a commercial model, hydraulically powered, boom mounted earth auger for use on the small emplacement excavator (SEE) or another piece of equipment utilizing the same backhoe configuration as the SEE. The backhoe attachment on the SEE is similar to the commercially available Case 580C backhoe. The hydraulic system on the SEE produces 26 GPH and 2450 psi.

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[INCH-POUND]

A-A-52305

20 August 1992

COMMERCIAL ITEM DESCRIPTION

AUGER, EARTH, BOOM MOUNTED

The General Services Administration has authorized the use of this commercial item description.

1. Abstract. This description covers a commercial model, hydraulically powered, boom mounted earth auger for use on the small emplacement excavator (SEE) or another piece of equipment utilizing the same backhoe configuration as the SEE. The backhoe attachment on the SEE is similar to the commercially available Case 580C backhoe. The hydraulic system on the SEE produces 26 GPM and 2450 psi.

2. Salient characteristics. The earth auger shall be able to bore 12-inch diameter holes, 72 inches deep in soil conditions defined in ASTM D 2487 as: W, SP, GM, GP, GC, SC, ML, and CL.

2.1 Mounting. The earth auger shall mount in place of SEE backhoe bucket utilizing the mounting bracket as illustrated in figure 1.

2.2 Output shaft. The output shaft which connects the hydraulic motor to the drill bit shall be hexagon shaped and shall utilize a mounting bolt or mounting pin to connect the auger bit to the earth auger motor. The bolt or pin shall be made captive to the earth auger drive unit. The mounting bolt or pin shall be installed and removed utilizing the onboard tools listed in 2.4.

2.3 Drill bit. The auger bit shall be of the double cutting type with replaceable cutting teeth and pilot bits(s). The bit shall be constructed with continuous fluting along the entire length of the drill bit. It shall be able to bore to an effective drilling depth of 72 inches. The bit shall contain a hex shaped connector in order to interface with the motor output shaft.

Beneficial comments, recommendations, additions, deletions, clarifications, etc. and other data which may improve this document should be sent by letter to: Commander, US Army Belvoir Research, Development, and Engineering Center, ATTN: SATBE-TSE, Fort Belvoir, VA 22060-5606.

DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.