Heavy Mobile Mechanic

Job Summary

We are seeking a motivated Diesel Mechanic to join our team. In this role, you will maintain, troubleshoot, and repair a diverse fleet of diesel equipment and trucks. Your expertise will be key to minimizing downtime and supporting our shop operations. If you thrive in a fast-paced environment where proactive problem-solving and hands-on skills are valued, this is a great opportunity to grow your career.

Responsibilities

• Accurately document all repairs, labor hours, and parts used on work orders.
• Dispatch & Response: Respond promptly to service calls, emergency roadside breakdowns, and scheduled on-site customer maintenance.
• On-Site Diagnostics: Perform field-level troubleshooting on heavy diesel engines, aftertreatment/emissions systems, air brakes, and electrical systems using mobile diagnostic software.
• Emergency Field Repairs: Execute critical, safe, on-the-spot repairs—including air leak fixes, hose crimping/replacements, belt installs, hub seal repairs, and fuel priming—to minimize customer downtime.
• Worksite Safety & Traffic Control: Establish safe work zones on highways and job sites using high-visibility gear, service truck positioning, proper lockout/tagout, and environmental spill containment.
• Maintain a clean, organized, and safe work area in compliance with OSHA and shop safety standards.
• Operate shop equipment safely, including hoists, presses, torches, welders, and diagnostic tools.
• Troubleshoot, repair, and overhaul heavy-duty diesel engines and sub-assemblies.
• Repair and replace transmissions, clutches, driveshafts, differentials, and axle assemblies.
• Inspect, rebuild, and service hydraulic systems (pumps, hoses, valves, and cylinders) on equipment and trailers.
• Use diagnostic software (e.g., Cummins Insite, Detroit DDDL, CAT ET) to troubleshoot fault codes and mechanical failure.
• Trace and repair complex electrical issues, starting/charging systems, multiplex wiring, and lighting.
• Diagnose and service modern diesel exhaust/emissions systems (DPF, SCR, DEF, and EGR components).
• Perform routine preventative maintenance (PMs), including fluid/filter changes, grease jobs, and safety checks.
• Conduct thorough Certified DOT inspections and complete required compliance documentation.
• Inspect brake systems, steering mechanisms, suspensions, wheel ends, and tire conditions.

Skills

• Engine Rebuilding & Overhauls: Skilled in performing in-frame and out-of-frame overhauls (piston/liner replacement, cylinder head work, setting valve lash, timing gear alignment).
• Heavy Drivetrains: Expertise in inspecting, servicing, and replacing heavy-duty manual/automated transmissions (Eaton, Allison, Detroit DT12), clutches, torque converters, drivelines, and differential assemblies.
• Brakes & Suspensions: Complete understanding of heavy-duty air brake systems (S-cam, air disc, ABS modules), steering linkages, kingpins, and heavy-duty leaf/air-ride suspensions.
• Hydraulic Diagnostics: Ability to read hydraulic schematics, test system pressures (PSI/flow), and rebuild/replace high-pressure pumps, valve banks, hoses, and cylinders.
• Air Systems: Servicing air compressors, governor valves, air dryers, and brake valves to ensure air-system integrity.
• Software Diagnostics: Hands-on experience with OEM software (Cummins Insite, Detroit DDDL, CAT ET, Volvo PTT, Wabco) to pull fault codes, run forced DPF regenerations, and monitor live parameters.
• Electrical System Tracing: Ability to read schematics and use a Digital Multimeter (DMM) to diagnose voltage drops, short circuits, sensor failures, and CAN-bus communication faults.
• Aftertreatment & Emissions: Deep technical knowledge of Tier 4 and modern road emissions systems, including EGR valves, DPF cleaning/rebuilding, SCR catalysts, and DEF dosing units.
• Welding & Torch Work: Proficiency in MIG (GMAW) and Stick (SMAW) welding for frame repairs, cross-member replacements, trailer floor grid repairs, and custom bracket fabrication.
• Precision Machining & Fitting: Operating manual lathes/mills, using precision tools (micrometers, dial indicators) to measure clearances, and executing thread repairs or bolt extractions.
• Surface Prep & Refinishing: Setting up abrasive sandblasting equipment and applying heavy-duty industrial coatings/primers using HVLP spray equipment.
• DOT Compliance & Safety: Thorough knowledge of Federal DOT/CVSA inspection criteria to ensure vehicles are safe and compliant before leaving the shop.
• Problem-Solving & Efficiency: Ability to systematically isolate mechanical failures quickly to minimize customer downtime.
• Work Order Documentation: Accurately logging diagnostic findings, parts used, labor hours, and specific repair procedures into shop management systems.
• Independent Field Diagnostics: Ability to systematically troubleshoot complex diesel, electrical, and hydraulic issues without immediate access to shop resources or lead technicians.
• Emergency Roadside Repair: Proficiency in performing quick, safe, and effective roadside repairs (e.g., air leaks, belt/hose failures, brake cage-outs, fuel system primes, and electrical bypasses) to get equipment moving or towed safely.
• Field Safety & Worksite Control: Knowledge of roadside safety protocols, setting up safe work zones (traffic cones, high-visibility positioning, lockout/tagout), and managing environmental risks (fluid containment).
• Self-Sufficiency & Tooling: Skill in utilizing mobile service truck equipment safely and effectively, including service cranes, engine-driven welders, high-output air compressors, and portable jump-pack/booster units.

Don't meet every single requirement? Apply anyway! We value strong hands-on problem-solving skills and a solid work ethic. A Mechanic Certification or CDL is preferred, but not mandatory.

Pay: $40,000.00 - $70,000.00 per year

Benefits:

• 401(k)
• 401(k) matching
• Employee discount
• Health insurance
• Paid time off
• Retirement plan

People with a criminal record are encouraged to apply

Work Location: In person

Salary : $40,000 - $70,000