DC Shunt Motors

ABB, BBC, Bull, General Electric, Reliance, and Siemens

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Servo offers full service repairs on DC Shunt motors under ONE TON in size. Every servo motor (including DC Shunt motors) that comes into our facility is repaired with the following features:

   • In-house electrical motor rewinding to original manufacturer's specifications
   • One year warranty from installation date
peer1    • Warranty tracking on ALL repairs by serial number
   • Same day turnaround service available at NO extra charge

Our servo motor repairs have a less than 1% yearly failure rate, which is the lowest in the industry. We also do NOT use any flat rate pricing. We only charge for what is wrong with the motor, which means a significant cost savings for you!

In order to keep your down time to a minimum and save you money, each of our DC Shunt motors are repaired with the following extra services:

   • Expert mechanical and electrical repair capability
   • 30 years of D/C winding experience
   • 500V/240V armature testing and 300V/150V field testing
   • Brush rigging neutral set
   • In-house armature rewinds to OEM specs: mush wound and formed coil type windings
   • In-house form coil rewinds to OEM specs
   • Copper windings and class H insulation materials including class H varnish
   • Balancing to Class 1 or better
   • Vibration testing on SKF isolation table with Entek IRD vibration test equipment
   • Closed loop testing of tachometers as well as necessary electronic tests

We also stock a full inventory of servo motor parts. Rush delivery service on your repairs is also available. Don't hesitate to contact us to learn more information on how we can repair your DC Shunt motors.



Incoming Reliance 60HP DC Shunt wound motor for repair.



Defective, burned out field coils need to be rewound. Servo rewinds field coils with copper winding and ALL Class H insulating materials including Class H varnish.
1ft5100



Defective, shorted DC armature that needs to be rewound.
NOTE: Winding type is formed coil design.
siemens 1ft



Reliance DC armature being rewound using form coils supplied by specialty supplier. Servo only buys their form coils from two worldwide, premier suppliers.
Siemens 1FT5104