Principal Laboratory Machinist - School of Physics and Astronomy CSENG
University of Minnesota, Twin Cities
September 14, 2018
35963.20 - 60507.20
This position is represented by the AFSCME Locals 3937 and 3801, Council 5, AFL-CIO Technical Union.
Responsibilities: The Principal Laboratory Machinist is responsible for Operation and maintenance of the helium liquefaction facility. This requires operation of high pressure, vacuum, and cryogenic equipment. The operator will be responsible for maintaining an adequate supply of liquid helium by filling orders from research groups. The operator will be responsible for interacting with vendors, users, and departmental staff, including training users in the safe and responsible use of cryogens. The operator will be responsible for maintenance of the liquefier itself as well as the ancillary equipment, particularly the compressors used for the liquefier and the associated helium recovery system.
The Principal Laboratory Machinist will be responsible for the maintenance and operation of a machine shop that is used by the faculty, students and staff of the School of Physics and Astronomy. In addition to maintenance and repair of machine and hand tools, the operator will be responsible for teaching basic shop safety and practice while assisting staff and students with projects. Familiarity with CAD tools at a level to assist research groups with design tasks is desirable.
The Principal Laboratory Machinist will assist with the ongoing needs of the research groups, including trouble-shooting problems in laboratories and coordinating with other university units, such as facilities management. The operator will assist with shipments of research material and equipment and will coordinate use of the loading dock and high bay.
35% - HELIUM LIQUEFIER This position has the responsibility for the daily operation, maintenance and repair of the helium liquefier, screw compressor, recovery compressors, stationary and portable Dewars and all equipment involved in the process of liquefying helium and recovering helium gas within a closed system.
Ordering both bulk and high purity gas deliveries, maintaining an inventory of parts to keep the system operational with the minimum amount of down time, troubleshooting system for breakdowns or deficiencies and keeping operational logs on all equipment.
Receiving, recording and filling orders for liquid helium from research personnel. Instruct personnel on the safe handling and transfer of cryogenic material.
Generate monthly reports that establish the charges for both the liquid helium sold and the refund credits for the helium gas returned to the system.
Tracking the recovery records of individual clients to assess and aid with their efficiency. Making repairs on recovery systems in labs as necessary.
20% - STUDENT SHOP
Supervise and maintain the student machine shop.
Serve as instructor for sixteen classes a year. The classes last eight weeks. Teach four classes quarterly. The courses are for graduate students on the safe, proper use and care of machine tools to including hand tools, mills, lathes, drills, brakes, shears, gas welding and silver soldering.
Orient, train, and advise student personnel on shop methods, standards, and safety.
Design, draw, set up and demonstrate projects to familiarize students with the various machining operations. Supervise the completion of these projects by students. Requisition shop supplies, equipment and materials.
10% - FABRICATION
Fabricate parts, assemblies, apparatus, and complex systems of equipment working from blueprints, sketches, CAD files and consultation with customers.
Fabricate parts from various metals, engineering plastics, composites, and wood.
Use various sheet metal tools, manual and CNC machine tools to produce parts and assemblies. Program CNC machine tools using CAM software.
Set up CNC machine tools and fabricate parts.
20% - REPAIR
Repair a variety of laboratory, teaching, diagnostic, clinical, or research apparatus, instruments, or instrumentation.
Perform maintenance and repair on shop tools and equipment.
15% - Building Technical Support
Assist in purchasing shop supplies, equipment, and materials.
Assist in identifying and specifying new equipment and machine tools.
Plan for new and additional work load by designing more effective shop procedures, layouts and otherwise generally improve the effectiveness of the shop operation.
Work with other staff on lab cleanouts, moving, dismantling equipment, miscellaneous building repairs, and manifests hazardous waste from machine shop.
This position will include other duties necessary of a similar scope as those listed above.
Supervision: This position may serve as a team leader.
Work Environment: While working in the shop, it is required that proper personal protective equipment (PPE) will be used such as safety glasses, hearing protection, welding helmets, and appropriate footwear/ clothing for working with machine tools. Much of the work is completed while standing. Must be able to lift 50 pounds and carry short distances. The person has to be able to climb and work on ladders.
High school graduation, vocational school or formal apprenticeship in machine shop practices and methods and about six (6) years' experience as a journey level machinist in a model shop or other extensive varied work experience in machine shops should provide the necessary background for this work.
Familiarity with computers at a level to operate the liquefier, diagnose problems, communicate with users, and interface with the accounting system and staff, is required.
Communication skills and the disposition to interact with students and staff from the School of Physics and Astronomy and other units, as well as vendors, is essential.
Able to read and understand basic blueprints, hand drawn sketches, and written work instructions.
Ability to use basic measurement tools such as micrometers, calipers, dial indicators, etc.
Quality control. Ability to inspect own work for accuracy.
Demonstrated knowledge of Excel.
Electronic knowledge of relay switches.
Ability to effectively communicate verbally and in writing when interacting with a diverse range of people.
Strong organizational skills and attention to detail.
Able to work independently as well as part of a team.
Ability to work on a variety of tasks, some concurrently, and handle short work interruptions by customers or students.
Problem solving skills.
Associates Degree or Diploma in Machine Tool Technology, CNC Toolmaking or Equivalent Program.
Basic welding knowledge and skills. Acetylene gas welding.
Knowledge of basic sheet metal work and forming.
Knowledge of computer aided design (CAD) software.
Ability to setup and operate CNC mill, machine lathes, conventional mills and manual machine tools.
Although previous experience operating a helium liquefier is not necessary, candidates should have some familiarity with high pressure and/or vacuum equipment. Diagnostics and repairs are an essential part of this job, and candidates should have sufficient experience and/or training to be able to learn how to operate the liquefier and associated equipment.
Experience working in a research environment and/or experience training machine shop users is highly desirable.
Internal Number: 326584
About University of Minnesota, Twin Cities
The University of Minnesota, founded in the belief that all people are enriched by understanding, is dedicated to the advancement of learning and the search for truth; to the sharing of this knowledge through education for a diverse community; and to the application of this knowledge to benefit the people of the state, the nation, and the world.