Heavy-Duty Truck Mechanic at JMG

Job Summary

• The Heavy-Duty Truck Mechanic is responsible for the inspection, diagnosis, repair, and preventative maintenance of our fleet of diesel-powered commercial vehicles (e.g., tractor-trailers, straight trucks, and associated equipment). This role is critical to maintaining Department of Transportation (DOT) compliance, ensuring vehicle safety, and maximizing fleet uptime in a fast-paced logistics environment.

Key Responsibilities

Maintenance & Repair:

• Perform routine and scheduled maintenance services, including oil changes, lubrication, and filter replacements.
• Diagnose and repair malfunctions in critical systems:
• Engine: Major diesel engines (e.g., Cummins, Detroit, Volvo, Paccar).
• Drivetrain: Transmissions (manual, automated, automatic), clutches, drive axles, and differentials.
• Braking Systems: Air brake systems (including chambers, valves, compressors), hydraulic brakes, and ABS diagnostics.
• Steering & Suspension: Front ends, air ride suspensions, leaf springs.
• Pneumatics & Hydraulics: Air systems for brakes and accessories, hydraulic systems for lifts and tailgates.
• HVAC: Cab air conditioning and heating systems.

Diagnostics & Problem-Solving:

• Utilize diagnostic software, electronic tooling, and laptop-based programs to troubleshoot complex electrical and electronic faults.
• Read and interpret technical manuals, wiring diagrams, and schematics.
• Perform road tests to verify repairs and identify intermittent issues.

Safety & Compliance:

• Conduct thorough Pre-Trip and Post-Trip Inspection Reports (DVIRs) as per DOT regulations.
• Perform Annual DOT Inspections and prepare vehicles for third-party inspections.
• Ensure all repairs meet federal, state, and local safety standards.
• Adhere to all company safety policies, including proper use of PPE, lockout/tagout procedures, and safe handling of fuels and chemicals.

Workshop Duties:

• Maintain a clean, organized, and safe work environment.
• Accurately document all work performed, parts used, and time spent on repair orders in the Fleet Management System (FMS).
• Manage inventory of parts and tools; communicate parts needs to the supervisor.
• Assist in mentoring and training apprentice mechanics.

Qualifications & Requirements

Essential (Must-Have):

• Certification: A valid Heavy-Duty Commercial Transport (310T) license or equivalent provincial/state certification (e.g., ASE Certification in Medium/Heavy Truck in the U.S. is highly preferred).
• Experience: Minimum of 3-5 years of hands-on experience diagnosing and repairing Class 8 heavy-duty trucks and trailers.
• Technical Skills: Proficient with diagnostic tools (e.g., JPRO, Insite, Detroit Diesel Diagnostics, OEM software) and standard workshop equipment.
• Knowledge: In-depth knowledge of diesel engines, air brake systems, and DOT regulations.
• Physical Ability: Capable of lifting heavy objects (50+ lbs), working in various positions (kneeling, bending, overhead), and working in varied environmental conditions (heat, cold).
• Soft Skills: Strong problem-solving ability, attention to detail, reliability, and the capacity to work both independently and as part of a team.