Zachary B. Hart
Fort Worth
Summary
Accomplished Fleet Supervisor with expertise in engine rebuilding and hydraulic systems, honed at Pumped Equipment. Proven track record in enhancing operational efficiency and minimizing downtime. Adept at leading teams and mentoring mechanics, leveraging advanced diagnostics and problem-solving skills to drive performance and reliability in high-pressure environments.
Overview
19
19
years of professional experience
1
1
Certification
Work History
Fleet Supervisor
Pumped Equipment
Bowie
11.2021 - 04.2025
- Diagnosed and repaired various frac equipment to enhance operational efficiency.
- Built frac pumps from the ground up, ensuring quality and reliability.
- Rebuilt QSK50 and 3512 engines, leveraging extensive MTU expertise.
- Maintained hydraulic systems, including closed loop, open loop, pumps, and motor rebuilds.
- Executed control box electrical work involving instrumentation, PLCs, and networked computer programs.
- Supervised crew activities to minimize downtime and optimize performance.
Lead Field Mechanic
Profrac Services
Odessa
10.2018 - 11.2021
- Diagnosed, rebuilt, and repaired vehicles and equipment with minimal supervision.
- Executed advanced troubleshooting and repair of air, electrical, hydraulic, and fuel systems.
- Mentored and trained mechanics to enhance team skill levels.
- Communicated repair and maintenance progress to colleagues, service writers, and maintenance managers as required.
Mechanic
Amerit Fleet Solutions
Denton
06.2017 - 10.2018
- Company Overview: (Schlumberger)
- Performed complete tear downs and rebuilds of various oil field equipment.
- Perform repairs on engines, transmissions, power ends and fluid ends.
- Installed updated hydraulic systems and filtration systems on frac pumps.
- (Schlumberger)
Mechanical Technician
Rush Truck Center
Denton
08.2015 - 06.2017
- Company Overview: (Schlumberger)
- Diagnose/Repair industrial diesel engines, transmissions, power ends and fluid ends.
- Troubleshoot and repair all systems on the heavy duty tractors.
- Completed routine maintenance on pumps and trucks as needed.
- Ran a service truck and completed repairs for several customers.
- (Schlumberger)
Diesel Technician II
Penske Truck Leasing
Fort Worth
01.2013 - 08.2015
- Diagnose/Repair all major truck systems, including engine, transmission, fuel and aftertreatment systems.
- Perform routine maintenance such as changing oil, checking batteries, and lubricating equipment and machinery.
- Inspect, test, and listen to defective equipment to diagnose malfunctions, using test instruments such as handheld computers, motor analyzers, chassis charts, and pressure gauges.
- Mobile repair; Completed repairs outside of shop environment, ordered parts, self-driven to complete duties, and worked with little or no supervision.
Assembly
Greiner Purtec
Fort Worth
10.2010 - 01.2011
- Company Overview: (Contractor)
- Sub-assembled product before doing the required assembly
- Moved product to next phase of assembly
- Maintained work station in a neat and orderly fashion
- Stored and maintained production parts, tools, equipment, and documentation
- (Contractor)
Advanced Monitoring Operator
Broadview Security
Irving
06.2008 - 12.2009
- Company Overview: (Formerly Brink’s Home Security)
- Responded and monitored residential/commercial alarm signals
- Dispatched emergency or security personnel when applicable
- Interacted with customers, customer’s emergency contacts, and emergency dispatchers in responding to emergency dispatch for either residence or business
- Used correct interdepartmental policies and procedures when interfacing with other departments within the company
- (Formerly Brink’s Home Security)
Cylinder Head Assembler
City Motor Supply Inc.
Dallas
02.2007 - 09.2008
- Pressured tested cylinder heads
- Quality checked product for cracks and leaks
- Assembled/measured manufactured product
Warehouse Employee
Six Flags Satellite Warehouse
Arlington
02.2006 - 01.2007
- Packed and delivered warehouse products to the park
- Shipping/Receiving utilizing UPS or FedEx
- Maintained work station in a neat and orderly fashion
- Maintained warehouse appearance
- Stocked inventory
Education
Diploma - Automotive/Diesel Technology II
Universal Technical Institute (UTI)
Dallas, TX09.2013
Graduated -
Mansfield Summit High School
Mansfield, TX01.2005
Skills
- Engine rebuilding
- Hydraulic systems
- Electrical troubleshooting
- Frac equipment maintenance
- Advanced diagnostics
- Vehicle inspection
- Problem solving
- Team leadership
- Fleet management expertise
Certification
- Detroit G2
- Volvo
- Cummins
- Paccar MX
Timeline
Fleet Supervisor
Pumped Equipment
11.2021 - 04.2025
Lead Field Mechanic
Profrac Services
10.2018 - 11.2021
Mechanic
Amerit Fleet Solutions
06.2017 - 10.2018
Mechanical Technician
Rush Truck Center
08.2015 - 06.2017
Diesel Technician II
Penske Truck Leasing
01.2013 - 08.2015
Assembly
Greiner Purtec
10.2010 - 01.2011
Advanced Monitoring Operator
Broadview Security
06.2008 - 12.2009
Cylinder Head Assembler
City Motor Supply Inc.
02.2007 - 09.2008
Warehouse Employee
Six Flags Satellite Warehouse
02.2006 - 01.2007
Diploma - Automotive/Diesel Technology II
Universal Technical Institute (UTI)
Graduated -
Mansfield Summit High School