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Repairs and Service For

A.C. 3 Phase Motor Repair Services

Servo Motor Shipping
Ship Your Item To A&C Electric
Servo Motor Cleaning
A&C Electric Certified Technicians Dismantle Your Product
Servo Motor Repair Quote
A&C Electric Sends you a Quote for Approval of Repair
Servo Motor Repair Return
Motor is rebuilt and shipped back to you ASAP

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

    • 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

A&C Electric is your number one source for electric motor repair in Michigan. We repair all types of motors, including gear boxes and even A.C. three phase motors, ranging from .25 HP to 5000HP. We can perform 3 phase motor services including cleaning mechanical parts, reconditioning of damaged parts, reinsulating windings, resleeving bearings, checking seals, and load testing. If a more immediate motor swap is needed, we also sell a wide variety of new and refurbished 3 phase motors.

The motor repair technicians at A & C Electric are some of the fastest in the industry. We can address your motor's failure, repair and refurbish it and return it to you with as little downtime as possible.

We address and fix the fault in your motor in HALF the lead time and at a FRACTION of the cost of buying new equipment.

Contact A & C Electric Company to repair your 3 phase electric motors today.

Typical Repairs on Your 3-phase Include:

1)   Dismantling, cleaning, & checking. Steam clean all mechanical parts.

AC 3-phase electric motor repair - disassembled

2)   General recondition of all damaged parts. Insulation/dielectric test.

AC 3-phase electric motor repair - cleaning

3)   Surge test. Hi-Pot test. Resistance test. Vibration test.

AC 3-phase electric motor repair - surge test

4)   Reinsulating & baking windings. Rewinding/dipping & baking stator.

AC 3-phase electric motor repair - rewinding

5)   Re-sleeving bearings housings. Metalizing shafts.

AC 3-phase electric motor repair - re-sleeving bearing housing

6)   Balancing rotor. Installing all new bearings & seals.

AC 3-phase electric motor repair - balancing rotor

7)   Reassembling. Testing. Painting. Load testing.

AC 3-phase electric motor repair

With every completed repair we include a service report explaining exactly what repairs were done and why. We do this to help you avoid another motor failure by implementing regular preventive maintenance.

Contact our A.C. three phase motor repair specialists for a free quote or simply call us at (586) 469-0710. We will process your order immediately to save you downtime.
Back To All Industrial Repair Services

Ship Your Item To A&C Electric
A&C Electric Certified Technicians Dismantle Your Product
A&C Electric Sends you a Quote for Approval of Repair
Motor is rebuilt and shipped back to you ASAP

Send In Repair Process

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