|
On Site Motor Repair & Rewinding
As part of our Field Services we offer motor repair and rewinding on site when needed. It may be that your facility was built around a motor, making it virtually impossible to remove or that the size and weight of the motor prohibits easy removal. When needed, we are capable of providing expert repairmen and winders around the clock on your site until the motor is repaired and back into operation. Witn this service, extra down time and removal expenses can be avoided.
Our Field Services Department can pull and re-install motors for you or make many repairs with the motor still in place. These on site repairs may include: brush changes, babbitt bearing changes and rebuilds, rolling element bearing changes, winding tests and pump rebuilds. When direciton of rotation is critical, we have equipment to verify rotation direction before powering up a motor. We are also capable of reconditioning slip rings and commutators on larger units on site.
Please give us a call for your on site needs. Chances are, between our Electrical, Electronics and Repair Divisions we have someone who can assist you.
 Infrared Imaging
The predictive maintenance of electrical systems, mechanical systems, steam and process systems, drying-heating systems, refrigeration systems, and building envelope systems can be enhanced by knowing and documenting areas of potential problems.
Hayes and Lunsford Electric Motor Repair, Inc. is currently offering the non- destructive infrared imaging of all areas listed above. Our complete infrared service includes the documentation of all areas of serious maintenance problems by the use of thermogram images and digital pictures of each problem as well as a complete VHS video recording.
The videotape provides you with documentation of the entire scan process including any problems and quantifies the magnitude of the problem for maintenance or insurance. With the use of infrared scanning, problems in many systems can be remedied during regular maintenance instead of waiting until a breakdown or personal injury to an employee has occurred. Inquire with your insurance provider about applicable discounts for having this service performed.
Vibration Trending & Analysis
How bad is the bearing? How much longer will it last? Is the noise really coming from the motor, or is it the gearbox? Does this machine need to be reconditioned now? These are just a few of the questions often asked and pondered over by maintenance personnel and production managers.
With a vibration trending program offered by Hayes & Lunsford Electric Motor Repair, Inc. in place, it could be possible to take questions out of the picture. Vibration trending can provide you with vital information concerning the condition of a machine, which would allow you to make corrections before a major breakdown occurs, thus preventing a costly unscheduled outage or downtime. Our vibration analysis service can often be used to diagnose a problem, and eliminate much of the guesswork. By eliminating the guesswork, you should be able to cut your repair expenses dramatically.
On Site Balancing
Imbalance in a machine can be detrimental to both the machine that is running and also the parts that it is designed to produce or even influence nearby machines and building structures. Even though this problem is usually easily corrected, it is still one of the major causes of early bearing failure and product degradation if left uncorrected. Excess vibration due to imbalance can be very destructive to equipment, noisy to the environment, and causes a machine to consume extra energy to run.
Hayes and Lunsford Electric Motor Repair offers on site balancing of many types of equipment including: fans, blowers, pumps, rotors, pulleys, and wheels. Most jobs can be completed with only a small amount of down time, and yet provide very substantial results.
 Laser Alignment
Poor alignment of direct-coupled machines is probably the leading cause of bearing failure. A bad alignment can place extreme forces on pump and motor bearings, leading to early failure. Coupler life is dramatically reduced and energy consumption is increased. Unwanted vibration fatigues parts and causes excess noise.
At Hayes and Lunsford Electric Motor Repair, Inc. we offer laser alignment service on both direct-coupled and belt driven machines. We use equipment manufactured by one of the industry leaders. Not only is our machine extremely accurate, it can cut hours off of many alignment jobs without the headaches associated with straight edges and dial indicators.
 Ultrasonic Surveys
Air leaks, faulty steam traps, bad electrical connections, and bearing problems all add up to wasted energy. One air leak 1/4" in diameter can cost $10,000.00 dollars annually in wasted energy. One faulty steam trap can amount to $1,000.00 annually in wasted energy. These problems emit ultrasonic sounds not audible with the human ear, but easily detected with an ultrasonic detection device.
Hayes and Lunsford Electric Motor Repair, Inc. offers this detection service to you using some of the latest equipment on the market, originally designed for military use and built to their high specifications. Using this equipment we can locate air leaks as small as .005 inch diameter from ten feet away with only 10 lbs. of pressure on the line. Most systems have 90 lbs. of pressure. The flow of steam in a system can be listened to and problem steam traps and valves identified. Reports sent back to you after a survey will include photos and indications as to the problem piece of equipment.
Motor Testing - On Site
Is it good or bad? How bad is it? Will it last? These are all questions that you may have concerning a motor winding. Often times many man hours are required to pull a motor and send it to a repair shop, only to find out later that the motor winding was not the problem. Other times it is desirable to know of conditions that may be developing in a motor winding. Using a portable digital surge and hipot tester capable of up to 12,000 VDC, Hayes and Lunsford Electric Motor Repair, Inc. can perform several tests on your motors while still in place. We can perform a polarization index test to determine the physical condition of the windings and insulation system. A surge test can be applied to the winding to detect even small turn to turn, coil to coil, and phase to phase shorts or grounds. The DC hipot is used to detect problems and check the integrity of the insulation as it protects the winding from going to ground. |
Field Services
