Oscar Hollenweger

• Assisted in diagnosing diesel engine issues using advanced diagnostic tools.
• Learned and applied safety protocols for handling hazardous materials in maintenance tasks.
• Supported experienced technicians during repairs and maintenance of diesel vehicles.
• Maintained cleanliness and organization of workshop to ensure efficient operations.
• Gained experience with various hand tools and equipment specific to diesel technology.
• Observed and participated in routine inspections of diesel engines for performance evaluation.
• Collaborated with team members to meet deadlines on vehicle service schedules.
• Documented repair procedures and maintenance activities for record-keeping purposes.
• Troubleshot systems, traced problems and diagnosed root causes.
• Performed vehicle lubrication and DOT safety inspections.
• Assessed equipment for damage, wear, battery life, and fluid levels.
• Supported fleet operations with dependable on-site troubleshooting, diagnosis, and repair services for diesel-powered vehicles.
• Delivered reliable repair services by consistently adhering to manufacturer specifications during all maintenance activities.
• Maintained safe working conditions by keeping shop areas clean and free from unneeded items.
• Refined diagnostic skills across various diesel engine models, ensuring accurate identification of underlying issues for targeted repairs.
• Inspected Vehicles for repair and maintenance needs.
• Collaborated with team members on complex repair tasks, resulting in improved workflow efficiency.
• Removed components and completed repairs or installed new replacements.
• Replaced parts such as belts, hoses and motors on different systems.
• Applied documented procedures and policies to complete complex repairs and identify and prepare required parts and tools.
• Reduced vehicle downtime by implementing efficient preventive maintenance procedures for diesel engines.
• Completed required documentation such as work-completed reports, timesheets and quality assessments via handwritten forms or business system input screens.
• Enhanced workshop safety through consistent adherence to established protocols and guidelines.
• Developed expertise in electronic control systems, enabling accurate troubleshooting of advanced diesel engine issues.
• Conducted safety inspections to comply with regulations, enhancing workplace safety.
• Serviced and maintained engines by performing regular oil and filter changes.
• Used specialized tools and equipment to diagnose and repair issues with diesel engines.
• Diagnosed mechanical problems for repair or replacement.
• Performed preventive maintenance on diesel engines, preventing malfunctions.
• Replaced and repaired fuel injection systems for diesel engines in buses and trucks.
• Ordered new parts for broken belts, hoses and filters, resupplying inventory.
• Collaborated with other mechanics to inspect diesel engines for signs of damage.
• Analyzed engine faults in buses and trucks, identifying potential causes and determining needed repairs.

Performed routine annual DOT inspections on over the road trucks, Mac freightliner Peterbilt and gas and propane trailers.

Diagnosed and replaced parts on DPF systems on Mac freightliner and Peterbilt trucks.

Removed and replaced EGR coolers alternators fan belts, brakes on trucks and trailers brake chambers u joints on driveshaft steering knuckles ball, joints, king, pins, wheels, and tires.

I am a certified gas and propane technician removed and replaced internals on gas trailers and propane trailers Make sure that the operating parts on the propane tires and gas trailers were regulated safety DOT.

I replaced springs airbags brake valves– valve steering wheels, replace heater cords, radiators AC condensers on Mac trucks freightliner Peterbilt removed and replaced clutches transmissions fly wheels Readjusted lifters for Jake brakes.

Performed a routine DOT inspections on trucks Mac Peterbilt freightliner.

Performed oil changes, fuel filters, air dryer, cartridges, grease trucks, and trailers.

Removed and replaced air dryers radiators fan, hubs, fuel, injectors, fuel, lines, fuel rails, steering boxes, drag links steering knuckles king pens AC condensers, new joints, driveshaft, transmissions, clutches, clutch brakes, fly wheels, motor mounts, cab mounts, leveling valves, cab airbags, cab, shocks, wheels, and tires, brakes, brake, drums, anchor pins.