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Repairs and Service For

FANUC L Series Servo Motor Repairs

Servo Motor Send-In Repair » FANUC Motor Repairs » FANUC L Series Servo Motors

Servo Lab Capabilities

We have documented 96 different Servo Manufacturer repair reports in our Database
We repair AC Servos, DC Servos, AC Spindles, and AC Actuators
Capable of 24-hour repairs in many cases
We have thousands of spare and rebuilt motors in our inventory for parts or exchange motors

Servo Lab Repair Procedures

  1. Data

    Motor nameplate data is recorded

  2. Inspection

    A visual inspection of any damage to the motor.

    We check for
    • Damaged Leads/Terminals
    • Worn output shaft/keyways
    • Cracks in end bells or covers
  3. Job Ticket

    We complete to full write up off all motor data

    Including
    • All winding tests (Resistance, Meg Ω, Continuity)
    • All bearing sizes
    • All seal sizes
    • Brake torque tests (Record Torque, winding resistance)
    • Feedback Tests (Tachometer/Encoder)
  4. Motor Disassembly

    • Bearing and seal sizes are recorded
    • Bearing fits are measured on shaft and End bell
    • Brake torque is measured as well as resistance and Meg Ω
    • More winding tests are performed (Surge and HiPOT tests)
    • Stator is then washed and baked in oven
    • Magnets are inspected for cracks or if loose on shaft
    • Encoder is tested with either (Heidenhain PWM20, Sick PGT-11, or Mitchell Electronics equipment)
  5. Assembly

    • New bearings are installed
    • New seals are installed
    • If required, new windings are impregnated
    • Brakes are rebuilt or replaced depending on manufacturer design.
    • Rebuilt or New encoders are installed and aligned using:
    • (Heidenhain PWM20, Sick PGT-11, or Mitchell Electronics equipment)
  6. Rotor Balancing and Testing

    • Rotor is run through a full vibration diagnostic
  7. Run Testing

    • Every Motor is Run for a minimum of 1 hour using one of our drives.
    • We use Siemens S110, S120, IndraDrive, AB Kinetix 300, Yaskawa 7, and AMC drives
  8. Service Report

    • A Final 3-page Service Report is filled out
    • Pinout diagram for power and feedback is provided
    • Brake torque is recorded a final time for our Service Reports
    • A photo of nameplate and motor is attached
    • A motor tag is installed on motor with QR code linking Service Report and Job Histories
    • If requested, a YouTube link is attached to the service report of motor

Whether you are running a precise and efficient FANUC servo motor in your CNC or milling machine, or you’re automating production with servo motor powered robotics, A & C Electric Company is here to repair your FANUC L Series Servo Motors to help keep your business going.

Due to servo motors' popularity in in-line manufacturing, their power and precision in repetitive work application make them the ideal motor to run a tight ship for lean manufacturers. However, with time, their precise and repetitive productivity might make them susceptible to corrosion, precision misalignment, or a loss in strength.

That’s why our Michigan based servo motor warehouse carries OEM parts for FANUC L Series Servo Motors. Our industrial motor engineers will receive, diagnose and return nearly every servo motor efficiently to reduce any downtime for your business.

Our repairs or OEM refurbished FANUC L Series Servo Motors don’t just save you money, they provide peace of mind with our A & C Electric 2-Year Guarantee.

If you think your motor’s repair would be too costly or the machine needs to be up and running now, discover our stock of ready to go refurbished FANUC motors.

ISO 9001:2000 Registered Electrical Apparatus Service Association
A&C Electric is a certified distributor service center.
© 2022 A&C Electric Company.All Rights Reserved
41225 Irwin Rd, Harrison Township, MI 48045 USA
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