UniFirst - - Responsibilities: Utilize hand/power tools, precision measurement tools, and electronic testing devices.; Ensure safe operation of machinery, mechanical electrical, pneumatic, and hydraulic systems and components.; Follow blueprints, schematics, operation manuals, manufacturer's instructions, and engineering specifications.; Troubleshoot sources of equipment problems through observation and use of precision measuring and testing instruments.; Perform boiler chemical and wastewater pre-treatment system testing, record results in logbooks / computer systems and make necessary chemical adjustments as required.