Diesel Fleet Mechanic: PMIs, Diagnostics & Roadside

Lignetics, Inc.; Marathon City (WI); On-site; USD 48,000 - 68,000; Full time

Benefits offered by this job

Referral bonus

Paid time off

Healthcare

Education assistance

Life insurance

401(k) with employer match

PPE and boots program

Job summary

Lignetics, Inc. is seeking a Fleet Maintenance Mechanic to inspect, diagnose, and repair a range of fleet vehicles and equipment. You will perform PMIs, conduct safety checks, and ensure road-readiness in compliance with DOT standards.

Responsibilities include diagnosing mechanical, electrical, hydraulic issues, maintaining service records, conducting road calls, and coordinating with drivers to minimize downtime while upholding OSHA safety guidelines.

Qualifications

• High school diploma or GED required; technical or vocational training preferred.
• 2+ years of experience in fleet, truck, or heavy equipment maintenance preferred.
• ASE certifications a plus.
• CDL preferred or ability to obtain (Class A or B, depending on fleet needs).
• Strong understanding of diesel engines, air brake systems, and hydraulic components.
• Ability to read and interpret technical manuals and wiring diagrams.
• Proficient with diagnostic tools and computer-based software.
• Ability to lift up to 75 lbs and perform physically demanding tasks.
• Must pass a background check and drug screening.
• Strong attention to detail and commitment to safety.

Responsibilities

• Perform preventive maintenance inspections (PMIs) and safety checks per company and DOT standards.
• Diagnose mechanical, electrical, hydraulic, and pneumatic issues.
• Complete repairs on engines, transmissions, brakes, suspension, HVAC, and other systems.
• Maintain accurate service records and work orders.
• Perform road calls and emergency repairs when needed.
• Use diagnostic tools and repair manuals to troubleshoot issues.
• Conduct DOT inspections and ensure compliance with regulations.
• Coordinate with drivers and operations to schedule maintenance.
• Maintain a clean and safe work environment per OSHA guidelines.

Skills

Diesel engines

Air brake systems

Reading wiring diagrams

Safety focus

Heavy lifting

Education

High school diploma or GED

Technical or vocational training

Tools

Diagnostic tools

Computer-based software

Job description

Lignetics, Inc. is seeking a Fleet Maintenance Mechanic to inspect, diagnose, and repair a range of fleet vehicles and equipment. You will perform PMIs, conduct safety checks, and ensure road-readiness in compliance with DOT standards.

Responsibilities include diagnosing mechanical, electrical, hydraulic issues, maintaining service records, conducting road calls, and coordinating with drivers to minimize downtime while upholding OSHA safety guidelines.