EARTHMOVING MACHINE SERVICE PROBLEMS

Earthmoving equipment manufacturers must concentrate on service-related problems such as routine maintenance, design, safety equipment, component reliability, tires, and specifications for export machines. Many of these problems must be addressed at the initial point of design, and earthmoving equipment manufacturers must incorporate seat belts that will last the life of machines under normal operating conditions. Oil, dirt, and abrasion related to seat operation and operating controls need to be part of seat belt design. Since about 80% of field repairs take less than two hours, attention must be largely directed toward eliminating nuisance repairs related to such items as the electrical system, the hydraulic system, engine attachments, and cooling system failures. General-purpose tires are essential for scrapers, trucks, and bottom dump hauling units that will move through cut and fill conditions which contain rock and mud. Design engineers need to incorporate the appropriate size and capacity for various tire manufacturers and tire sizes on equipment so that contractors can take advantage of productive capacity, horsepower, and hauling unit speed. Equipment manufacturers must concentrate on designing machines that reduce service and maintenance costs, provide simplicity of operation and maintenance, and recognize appropriate design considerations of the export market. Manufacturer concentration on a limited product line with intense technological improvements and designed-in reliability is envisioned as a cost-effective way of meeting contractor and public needs and demands.

  • Availability:
  • Supplemental Notes:
    • Presented at SAE Earthmoving Industry Conference, Peoria, Illinois, 10-12 April 1978.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Sanders, C E
  • Publication Date: 1978

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00395895
  • Record Type: Publication
  • Source Agency: National Highway Traffic Safety Administration
  • Report/Paper Numbers: SAE 780477, HS-025 509U
  • Files: HSL, USDOT
  • Created Date: Jul 31 1985 12:00AM