Machine Maintenance Tech III

CNC Machine Maintenance Technician

Join the team that is part of an American Tradition! Ruger Firearms is one of the nation's leading manufacturers of rugged, reliable firearms and components for the commercial sporting market. We are looking for dedicated individuals who would like to join our team. Our associates will have the opportunity to receive benefits that include a 401k contribution, medical, dental, vision, FSA, life insurance, short term and long term disability coverage.

We are looking for a skilled CNC Machine Maintenance Technician to support the day-to-day reliability of our CNC machining equipment and manufacturing systems. This position plays a hands-on role in keeping equipment running, responding to breakdowns, identifying the cause of problems, and making the repairs necessary to return machines to production safely.

The technician will work on a wide range of CNC machine systems and will be expected to look beyond the immediate symptom of a failure. The goal is not simply to get a machine running again, but to understand why the failure occurred and address the underlying problem whenever possible.

This position requires a strong combination of mechanical and electrical troubleshooting skills, along with a working knowledge of CNC controls, PLCs, hydraulics, pneumatics, machine lubrication systems, and industrial electrical systems.

The technician will work closely with Maintenance, Production, Engineering, and other departments to reduce downtime and improve the overall reliability of the equipment.

CNC Equipment Troubleshooting and Repair

• Respond to CNC machine breakdowns and maintenance requests and determine the cause of the problem.
• Troubleshoot problems involving electrical circuits, mechanical components, hydraulics, pneumatics, lubrication systems, and machine controls.
• Investigate CNC alarms and machine faults rather than simply resetting the equipment or replacing components without determining the cause.
• Troubleshoot motors, servo systems, spindle systems, drives, encoders, sensors, proximity switches, limit switches, relays, contactors, solenoids, and related components.
• Troubleshoot machine-control problems involving PLC inputs and outputs, machine I/O, interlocks, and other control functions.
• Use CNC diagnostic screens, machine parameters, electrical test equipment, and other available diagnostic tools to isolate problems.
• Determine whether a machine problem is electrical, mechanical, controls-related, or related to another part of the machine or process.
• Make repairs and adjustments necessary to return equipment to safe and dependable operation.
• Test equipment following repairs to verify that the original problem has been corrected and the machine is operating properly.
• Preventive Maintenance and Equipment Reliability
• Perform scheduled preventive and predictive maintenance on CNC machines and associated equipment.
• Inspect equipment for conditions that could lead to future failures, including excessive wear, leaks, unusual noise, vibration, heat, and other abnormal conditions.
• Maintain machine lubrication systems, hydraulic systems, pneumatic systems, coolant-related equipment, and other supporting systems.
• Perform machine adjustments, alignment, leveling, calibration, and other maintenance activities as required.
• Identify equipment that is showing signs of deterioration and communicate those conditions before they become major failures.
• Look for repeat failures and work with the Maintenance and Engineering teams to determine permanent corrective actions.
• Assist with equipment upgrades, rebuilds, retrofits, modifications, and other projects intended to improve machine performance or reliability.

CNC Controls and Machine Systems

The technician will work with a variety of CNC machines and control platforms. Equipment may include machines manufactured by:

• Okuma
• DMG MORI / Mori Seiki
• Haas
• Doosan
• Other CNC machine tool manufacturers

Experience with multiple CNC control platforms is beneficial. The technician should be comfortable learning different control systems and using the diagnostic information available from each machine.

The technician will use equipment such as multimeters, clamp meters, electrical testers, hand tools, power tools, and other specialized maintenance equipment to locate and correct problems.

What We Are Looking For

Required Qualifications

• High school diploma or GED.
• You must be a minimum of 18 years old, and able to pass both a background and drug screen.
• Previous experience in industrial maintenance.
• Experience in a CNC machining or manufacturing environment is preferred.
• Demonstrated ability to accurately troubleshoot electrical and mechanical equipment.
• Ability to read and understand electrical schematics and mechanical drawings.
• Working knowledge of both AC and DC electrical systems.
• Working knowledge of industrial control components.
• Working knowledge of hydraulic and pneumatic systems.
• Ability to safely use electrical test equipment and common maintenance tools.
• Ability to troubleshoot equipment in a logical and methodical manner.
• Ability to work safely while equipment is being diagnosed, repaired, tested, and returned to service.
• Ability to work independently while also functioning effectively as part of a maintenance team.

The position requires:

• Strong electrical troubleshooting skills.
• Strong mechanical troubleshooting skills.
• The ability to follow a problem through multiple systems when the cause is not immediately obvious.
• The ability to use schematics, machine documentation, diagnostic screens, and test equipment to troubleshoot equipment.
• Understanding of PLC inputs and outputs.
• Understanding of sensors, proximity switches, limit switches, encoders, relays, contactors, solenoids, motors, and drives.
• Understanding of how electrical, mechanical, hydraulic, pneumatic, and control systems interact with one another.
• The ability to separate a machine symptom from the actual cause of the problem.
• Good communication skills.
• Good maintenance documentation habits.
• The ability to manage multiple maintenance issues and determine which problems require immediate attention.
• Strong attention to detail and commitment to conducting repairs correctly and safely.

Physical Demands

This is a hands-on maintenance position. The technician will regularly work around and on CNC equipment and must be physically capable of accessing the various areas of a machine where maintenance is required.

The job may require:

• Standing and walking for extended periods.
• Bending, stooping, squatting, kneeling, crawling, and reaching.
• Climbing stairs, ladders, platforms, and lifts.
• Working underneath machinery or inside difficult-to-access areas.
• Working in confined or restricted positions.
• Reaching into electrical cabinets and machine enclosures.
• Handling tools and small electrical and mechanical components.
• Lifting, carrying, pushing, or moving maintenance materials and equipment weighing up to approximately 40 pounds, with assistance or mechanical lifting equipment used when appropriate.
• Frequent use of hands, wrists, arms, and shoulders while using hand tools, power tools, meters, and other maintenance equipment.
• Repetitive gripping, turning, pulling, reaching, and other hand and arm movements.
• Maintaining sufficient hand strength and fine motor control to work with small components and electrical connections.
• Required PPE must be worn whenever and wherever specified by company policy or the requirements of the work area.

Work Environment

Most work will take place in an active industrial manufacturing environment.

The technician will routinely work around:

• Operating CNC machine tools.
• Automated manufacturing equipment.
• Metal chips and cutting debris.
• Coolants and cutting fluids.
• Oils and lubricants.
• Electrical control cabinets and industrial electrical equipment.
• Hydraulic and pneumatic systems.
• Moving machinery.
• Industrial noise.
• Dust and other manufacturing debris.
• Areas with elevated or changing temperatures.
• Maintenance work may take the technician into locations that are hot, cold, wet, dirty, dusty, noisy, elevated, underneath equipment, or otherwise difficult to access. Occasional outdoor work may be necessary depending on the location of equipment or the maintenance activity being performed.