Maintenance Technician

Founded in 1959 by Ed Miller near Chicago, Prince Industries has grown from a one-man shop into a global manufacturing partner. With seven facilities across the U.S. and China, we serve industries from hydraulics to aerospace, handling everything from just-in-time components to high-volume assemblies.

At Prince, we don’t just make parts—we solve complex supply chain challenges. We are a strategic partner, focused on helping clients improve products, reduce costs, and simplify operations. Certified to ISO 9001:2015, ISO 13485, and AS9100 standards, we combine quality, innovation, and growth-minded thinking to deliver real value.

Hands-on Maintenance Technician to keep our CNC machines and supporting equipment operating safely and reliably in an aerospace manufacturing environment. This position performs preventive maintenance, troubleshoots equipment failures, and completes repairs to minimize downtime and support production. 

• →Troubleshoot and repair CNC mills, lathes, and supporting equipment, including mechanical, electrical, hydraulic, and pneumatic systems. 
• →Diagnose problems with motors, pumps, bearings, ball screws, lubrication systems, coolant systems, tool changers, and machine conveyors.
• →Perform scheduled preventive maintenance according to manufacturer recommendations and equipment history. 
• →Respond to machine breakdowns, communicate repair status, and coordinate downtime with production. 
• →Read electrical schematics, mechanical drawings, equipment manuals, and diagnostic information. 
• →Inspect and maintain coolant delivery, filtration, lubrication, and compressed-air systems. 
• →Coordinate with machine manufacturers and outside service technicians when specialized repairs are required. 
• →Maintain accurate records of inspections, repairs, downtime, replacement parts, and preventive maintenance. 
• →Identify recurring failures and recommend improvements to equipment reliability. 
• →Maintain critical spare parts and communicate purchasing needs. =
• →Assist with equipment installation, relocation, and facility maintenance within training and qualifications. 
• →Follow lockout/tagout procedures, machine guarding requirements, and company safety policies. 
• →Maintain clean, organized maintenance areas and support plant 5S standards. 

• At least three years of industrial maintenance experience, including experience maintaining CNC equipment. 
• Strong mechanical troubleshooting skills and working knowledge of electrical, hydraulic, and pneumatic systems. 
• Ability to read schematics and use diagnostic tools, including a multimeter. 
• Experience troubleshooting motors, drives, sensors, switches, and machine alarms. 
• Ability to prioritize repairs, work independently, and communicate clearly with production personnel. 
• Commitment to safe work practices and accurate maintenance documentation. 
• High school diploma or equivalent. 

• Technical school training or certification in industrial maintenance, mechatronics, or a related field. 
• Experience with multi-axis CNC mills, turning centers, pallet systems, and automated equipment. 
• Familiarity with Haas, Fanuc, Siemens, Mitsubishi, or comparable CNC controls. 
• Experience troubleshooting PLC inputs and outputs, variable-frequency drives, and servo systems. 
• Experience in precision manufacturing environment.

• Ability to stand, walk, bend, kneel, and access equipment components throughout the workday. 
• Ability to lift and move parts and tools weighing up to 50 pounds, with assistance as needed and reasonable accommodations where applicable. 
• Ability to work around machinery, coolant, oils, and normal manufacturing noise. 
• Availability for occasional overtime and scheduled maintenance outside normal production hours.