I wanted to thank you and the TigerTek team for all your efforts this past week-end. The quick response and "round-the-clock" efforts were very much appreciated and proved yet again that TigerTek can be counted on in an emergency. Please extend my sincere appreciation to all involved.  You guys do a Great Job!


Servo Motor Troubleshooting

Servo Motor Troubleshooting

Common Servo Motor Issues & Possible Causes

The repair technicians at TigerTek have seen it all when it comes to broken servo motors, but some issues are more common than others. Even with a strict regimen of upkeep and preventative maintenance, a servo motor failure can (and will) happen during operation. Here's a list of common problems & some tips on troubleshooting your servo motor.

Issue: No Rotation

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  1. The motor connections are loose or open.
  2. Foreign matter is lodged in the motor.
  3. The motor load is excessive.
  4. The bearings are worn.

Issue: Overheating

  1. The rotor is partially demagnetizing causing excessive motor current.
  2. Motor voltage is exceeding the maximum value.
  3. The duty cycle is excessive.

Issue: Abnormal Noise

  1. Loose parts are present in the motor.
  2. Through bolts are loose.
  3. The bearings are worn.
  4. GAIN setting is too high.

Issue: Erratic Operation (motor locks into position, runs without control or with reduced torque)

  1. Phases A & B, A & C or B & C reversed
  2. Sine, Cosine or Rotor leads reversed
  3. Sine, Cosine, Rotor lead sets reversed
  4. Combinations of 1, 2, 3

Although some of these common servo motor issues can be repaired in-house, we strongly recommend using a dedicated servo motor repair provider such as TigerTek Industrial Services. Our UL-approved, 30,000 sq ft repair facility includes OEM testing equipment, a massive replacement parts inventory, and an in-house machine shop.This insures quality, consistency, and industry-leading turnaround time.

TigerTek is the servo repair partner of choice for clients of all sizes, across the nation. Call us now at 1. or contact us for a free servo repair quote.

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Servo Motor Repair Services

Fanuc Servo Motor Repair
Pacific Scientific Servo Repair
Yaskawa Servo Motor Repair
Siemens Servo Motor Repair
Allen Bradley Servo Repair
Additional Servo Brands Serviced

Additional Servo Repair Info.

General Repair Info. - Fanuc Servo Motors
Fanuc Servo Maintenance & Parts List
Fanuc Servo Motor Repair - Technical Specifications
General Repair Info. - Yaskawa Servo Motors
Repair Services - Yaskawa Linear Servos
Repair Services - Yaskawa Rotary Servos

Electric Motor Repair Services

Servo Motor Repair
Stepper Motor Repair
Permanent Magnet / PMDC Motor Repair
Spindle Motor Repair
Servo Motor Resources

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For national servo motor repair, stepper motor repair & other industrial services, including Fanuc servo motor repair, spindle motors,
brushless motors, and more, TigerTek is your servo motor repair source. Our specialty is lightning-fast in-house servo repair for all major brands.
All servos are expertly repaired with OEM parts and quickly returned like new, complete with 1 year warranty.
TigerTek Industrial Services, Inc. | 2741 NC Hwy 135 | Stoneville, NC 27048
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