Mon - Fri: 8AM - 4:30PM (CST)
Emergency Service 24/7

Field Services Your Operation Can Rely On
Providing preventative maintenance and risk planning your operation needs to reduce unscheduled down-time.

At Lewis Motor Repair we provide on-site / in-field apparatus services for all electric motors and related systems on a local and regional level.

Onsite Motor & Generator Repair

Complete Field Services - Onsite Motor & Generator Repair

We provide complete field services for electirc motors, generators, gearboxes, pumps, fans, and driveline components.

  • Predictive & preventive maintenance
  • Dedicated & experienced field service specialists
  • Troubleshooting using state-of-the-art diagnostic technologies
  • Maintenance assessments with documented recommendations
  • Engineering consulting & root cuase failure analysis
  • Off-line electrical tests
  • Short-term embedded service technicians
  • Equipment rigging, removal, installation, & startup
  • Emergency services & outage support

Predictive Maintenance

  • Vibration Analysis
  • Thermography - Infrared Imaging
  • Routine critical motor winding analyzing

Preventative Maintenance

  • Vibration & analysis
  • Thermography - Infrared Imaging
  • Laster alignment
  • Cryogenic "dry ice" cleaning
  • On-site balancing
  • Commutator & slip ring service
  • Carbon Brush aduits & replacements
  • Filter replacements
  • Lubrication programs
  • Equipment inspections

Vibration Analysis

Detecting Potential Equipment Failures - Vibration Analysis

Vibration Analysis should be an essential part of any maintenance program. This vital service helps us detect areas of potential failure on your critical equipment BEFORE failure occurs. By having one of our technicians from Lewis Motor Repair regularly analyze your equipment you can substantially reduce your facility's production downtime, loss of man hours, and expensive repairs. We can provide on-going spot checks or conduct a plant wide vibration analysis.

Working with you, we can determine the best frequency of visits to meet your needs - monthly, quarterly, biannually or annually. We can provide some immediate information on-site as well as detailed reports upon completion of the analysis. Call us or fill out or inquiry form to contract one-time or on-going vibration analysis services.

Typical equipment we test:


  • Electric Motor — AC & DC
  • Gearboxes
  • Fans
  • Pumps
  • Extruders
  • Air Compressors
  • Ammonia Compressors
  • Hammermills
  • Any Rotating Equipment

Dynamic Balancing

Bringing Your Equipment Back into Balance - Dynamic Balancing

Equipment misalignment and unbalance are the main causes of over 70% of all machinery problems, based on industry estimates. Far too often our technicians at Lewis Motor Repair have come across the same issues in motors and pumps brought in for repair. By maintaining proper balance on your equipment you are able to reduce wear and tear, thereby increasing the machine's life span.

At Lewis Motor Repair we offer dynamic balancing for all types of rotating equipment. For customers who are locally or regionally based, we can provide on-site balancing at your location. We can also provide in-house balancing up to 4.5 tons at our repair facility in Waite Park, MN.

Benefits of Dynamic Balancing


  • Prolongs bearing life
  • Reduces motor power consumption
  • Reduces repair costs
  • Reduces structural stress
  • Eliminates or reduces vibration, excess noise, and mechanical damages

Typical equipment we balance:


  • Motor Rotors
  • Pulleys
  • Hammermills
  • Fans
  • Rollers
  • Pumps
  • Other various rotating equipment

Dry Ice Blasting

Equipment Cleaning that Saves Time & Money - Dry Ice Blasting

At Lewis Motor Repair we have successfully used dry ice blasting in a wide array of applications, from heavy slag removal to delicate semiconductor and circuit board cleaning. It is a highly beneficial process that can be used on-line without damaging equipment or requiring machine "teardowns". Unlike conventional toxic chemicals, high pressure water blasting, or abrasive grit blasting, our dry ice blasting technique uses dry ice particles in a high velocity air flow to remove contaminates from surfaces without the added costs and inconvenience of secondary waste treatment and disposal.

You can rent our equipment, contract us to come in and do the work, or we can dry ice blast whatever it is you need cleaned at our facility in Waite Park, MN.

Industries that have successfully benefited from our dry ice blasting services:


  • Printing
  • Power Generation
  • AeroSpace
  • Rubber Molding
  • Pulp & Paper
  • Aggregate & Mining
  • Wood Products
  • Foundry
  • Food & Beverage
  • Food Processing
  • Plastics

Infrared Thermography

Finding Temperature Risks BEFORE They Become an Issue - Infrared Thermography

Through digital infrared thermography we can determine whether ANY piece of equipment has a temperature risk. Our sophisticated imaging equipment will show any "out of the normal" temperatures in any electrical or mechanical application — saving you from unnecessary breakdowns as well as saving you time and money.

At Lewis Motor Repair our infrared thermography services include customized and comprehensive reports for each location needing attention. The reports include a photo of the piece as well as a detailed infrared picture showing the exact area(s) of concern. Our highly trained infrared thermography technician will also note the potential problem(s), provide recommended actions, and rate the repair priority.

Typical equipment we image:


  • Motors
  • Relays
  • Breakers
  • Bus Runs
  • Starters
  • Substations
  • Transformers
  • Electrical Connections

Laser Alignment

Precision Measurements - Laser Alignment

When a motor shaft is directly coupled to a piece of equipment, the alignment between the two shafts must be precise. Misalignment increases force, putting unnecessary pressure on the bearings, as well as decreases the durability of the motor and seals while creating vibration. All of this results in breakdowns and a shorter life span for your equipment.

At Lewis Motor Repair we rely on laser beams to achieve precision alignment. The visible laser beams allow us to acquire critical positioning measurements of the motor shaft in relation to the equipment it is connected to. Our highly trained field technicians can get within a thousandths tolerance, maximizing the life of bearings, seals, and couplings - saving you time and money.

Laser Belt Capabilities

Aligning pulleys and sheaves correctly can save up to 10% in energy costs if performed correctly. Proper pulley alignment in all motors extends belt and chain life, reducing downtime and repairs.

Typical equipment we laser align to an electric motor:


  • Pumps
  • Fans
  • Conveyors
  • Gearboxes
  • Compressors
  • Hammermills