Plant Mechanic Helper

Colas
Irwindale, CA

Subsidiary: SULLY-MILLER


United Rock Products is one of the companies that operates within Sully-Miller Contracting Co., the Colas USA subsidiary that operates throughout Southern California. We are part of Sully-Miller Companies consisting of Sully-Miller Contracting Co., Blue Diamond Materials and United Rock Products. Each company supports the other. United Rock provides the aggregate, Blue Diamond Materials provides the hot and warm mix asphalt manufacturing, and Sully-Miller Contracting executes the projects. Mining of construction aggregates at United Rock Products in the San Gabriel Valley has taken place since 1916. Our top-rated 300-acre site is located in Irwindale, California, just 25 miles east of Los Angeles. Virgin aggregate material is processed into sand and gravel through cutting-edge crushing and screening operations. To learn more about United Rock Products visit .

Throughout Colas USA, we provide competitive pay, outstanding benefits, career advancement opportunities, professional education, and extensive training for every employee. We pride ourselves on upholding the highest standards of safety, environmental conservation, and ethical conduct as we strive to grow our infrastructure products and services through empowering and developing our people, fostering innovation, utilizing new technology, and maximizing vertical integration at all levels of the company’s value chain. To learn more about the Colas USA Family of Companies, please visit .

United Rock Products, and the rest of the Colas USA Family of Companies, is part of the Colas Group, the worldwide leader in transportation infrastructure construction and maintenance. For information on our international network visit .

Compensation

$31.75 per hour

Job Summary

Under the supervision of the Maintenance Foreman and Site Manager, the Maintenance Mechanic Helper is responsible to work on all maintenance and repair of plant equipment. The primary duty of the role is to complete routine maintenance tasks associated with the facility including but not limited to screen cloth changes, conveyor maintenance and chute repairs.

Main Responsibilities

  • Completes repairs according to generally accepted methods under guidance of the Foreman and/or Site Manager
  • Performs routine scheduled maintenance as outlined by the Foreman and/or the Site Manager
  • Independently removes components for repair or replacement such as, but not limited to; motors, gearboxes, pulleys, bearings, rollers, conveyor belts, v-belts, etc.
  • Inspects and assists Maintenance Mechanic with major repairs of crushers, screens and other processing equipment
  • Independently inspects and replaces screen media (with assistance), etc.
  • Performs minor welding and cutting -- must pass a welding/cutting test (certification not required)
  • Replaces and or repairs chute liners/wear plates, etc.
  • Assist Maintenance Mechanic with crusher liner changes
  • Performs clean-up as necessary to keep tools, equipment, and working areas clean, orderly, and safe
  • Inspect work area for safety, environmental defects
  • Complete daily pre/ post area/equipment inspections - report as needed
  • Operates support equipment as needed during maintenance tasks once properly tasked trained
  • Other duties as assigned by Site Manager and/or Foreman

Skills

  • 2 years minimum experience in a similar industry preferred
  • Ability to use necessary tools
  • Must understand all of your controls and have experience with various types of equipment including man lifts, fork lifts, telehandlers, scissor lifts, etc.
  • Must have a valid driver's license and be able to drive company vehicle
  • Understands MSHA and CALOSHA regulations
  • Must have a strong, team-oriented work ethic with strong focus on safety and environmental compliance
  • Ability to understand and follow Company Handbook and Safety Policies
  • Ability to work well with others
  • Must have a strong mechanical aptitude
  • Must be able to follow oral and written plans and directions

Colas Inc. and its subsidiaries are an Equal Opportunity Employer. For details on the specifics of this commitment, please click here to view the EEO document . If you are an individual with a disability and require a reasonable accommodation to:

  • to meet the requirements of the role in which you are applying
  • complete any part of the application process
  • access or use the online application process and need an alternative method for applying

Please contact Colas Inc. at 973-290-9082 or send an email to [email protected] .

Posted 2025-07-30

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