RONALD GAJEWSKI
Bristol,WI
Summary
Maintenance and Repair Technician with 15+ years of experience troubleshooting, maintaining, and optimizing complex mechanical, electrical, hydraulic, pneumatic, and automated systems. Recognized for quickly learning new technologies, adapting to evolving operational demands, and successfully applying technical expertise across diverse industries, including fleet operations, manufacturing, and production environments. Strong background in electrical diagnostics, controls troubleshooting, PLC systems, preventive maintenance, equipment reliability, and continuous improvement. Proven ability to master new equipment and processes, collaborate across teams, train personnel, and deliver safe, reliable solutions that minimize downtime and improve operational performance. Known for a hands-on approach, strong problem-solving skills, and a commitment to continuous learning and professional growth.
Overview
19
19
years of professional experience
Work History
Maintenance Group Leader Technician II Repair
ABBOTT LABS
07.2023 - Current
- Diagnosed and resolved complex electrical, mechanical, pneumatic, and process control issues, minimizing equipment downtime and improving operational efficiency.
- Executed preventive and predictive maintenance programs to improve equipment reliability and support continuous production operations.
- Maintained and repaired plant production equipment, utility systems, and high-speed filling, packaging, and conveying machinery to ensure reliable manufacturing operations.
- Troubleshot, repaired, and rebuilt pumps, motors, gear reducers, AC/DC drives, variable frequency drives (VFDs), and related mechanical systems.
- Installed, modified, and maintained electrical systems using wiring diagrams, schematics, and National Electrical Code (NEC) standards.
- Performed PLC and automation troubleshooting, including monitoring and interpreting control logic.
- Fabricated, welded, machined, and installed replacement parts and equipment components using lathes, mills, welding equipment, and precision measuring tools.
- Utilized computerized maintenance management systems (Maximo) for work orders, documentation, equipment audits, and spare parts management.
- Led maintenance activities, provided on-the-job training to new technicians, and coordinated work assignments with minimal supervision.
- Ensured compliance with FDA, GMP, USDA, OSHA, and company safety and quality standards while maintaining a safe and organized work environment.
Fleet Maintenance Technician
KENOSHA COUNTY HIGHWAY DEPARTMENT
05.2019 - 07.2023
- Daily activities include preventive maintenance, diagnostic testing, and field repair on all Highway Division equipment.
- Schedule machine maintenance in coordination with other department supervision to maintain program timelines.
- Determine nonstop part requirements and procure as necessary utilizing the purchase order system.
- Utilized and calibrated Volvo Density and compact assist technology in Paving Division to enhance project efficiency.
- Conducted equipment orientation training for new Road Department Operators to ensure familiarity with machinery.
Fleet Maintenance Technician
CITY OF KENOSHA
04.2015 - 05.2019
- Performed preventive maintenance and repaired various on-highway light, medium, and heavy-duty vehicles to manufacturer specifications.
- Serviced various types of vehicles to ensure proper functionality., maintain, and repair light, medium, and heavy-duty snowplow, and salt distribution equipment
- Provide emergency service to vehicles which have become disabled in the field.
Repair Technician 1
LAKESIDE INTERNATIONAL TRUCKS
07.2012 - 04.2015
- Perform complex vehicle and engine electrical diagnostics utilizing various types of equipment; such as Borescope for visual internal component inspection, PC based diagnostic service tool, Digital multi meter, Oscilloscope, and Test light.
- Versed in engine mechanical diagnostic and repair i.e. complete engine overhaul, fuel systems repair, exhaust after treatment repair.
Service Technician
MERLIN 200,000 MILE SHOP
06.2010 - 07.2012
- Performed comprehensive preventative maintenance for customer vehicles.
- Delivers outstanding customer service while maintaining a thorough understanding of customer concerns and expectations.
Parts Picker/Delivery driver/Countermen/Machinist
LEE AUTO PARTS SUPPLY
06.2007 - 01.2012
- Research and procure automotive components required by customers.
- Deliver automotive supplies and parts to account holding customers.
- Performed inspection and testing on cylinder heads for leakage and wear.
Education
College Of Lake County
01-2025
College Of Lake County
01-2025
College Of Lake County
08-2024
International Factory Technology Training -
07-2012
Automotive/Diesel/Industrial Technology
Universal Technical Institute
06-2012
High School Diploma -
06-2010
Skills
- Electrical Troubleshooting
- Preventive Maintenance
- CMMS (Maximo)
- GMP Compliance
- PLC & Control system troubleshooting
- Root Cause Analysis
- Reading Schematics (electrical, pneumatic, part prints)
- Equipment Reliability
- Continuous Improvement
Accomplishments
- Directors Award 2024
Timeline
Maintenance Group Leader Technician II Repair
ABBOTT LABS
07.2023 - Current
Fleet Maintenance Technician
KENOSHA COUNTY HIGHWAY DEPARTMENT
05.2019 - 07.2023
Fleet Maintenance Technician
CITY OF KENOSHA
04.2015 - 05.2019
Repair Technician 1
LAKESIDE INTERNATIONAL TRUCKS
07.2012 - 04.2015
Service Technician
MERLIN 200,000 MILE SHOP
06.2010 - 07.2012
Parts Picker/Delivery driver/Countermen/Machinist
LEE AUTO PARTS SUPPLY
06.2007 - 01.2012
College Of Lake County
College Of Lake County
College Of Lake County
International Factory Technology Training -
Automotive/Diesel/Industrial Technology
Universal Technical Institute