Motor & Windings
Electrical deterioration, insulation problems and winding faults can prevent the motor from producing the required torque reliably.
Servo Motors & Drives
Servo Repair Is Precision Work.
A servo motor is not a conventional motor.
Its performance depends on the relationship between the motor, bearings, brake, feedback device, drive and the machine it controls.
Partech provides specialized servo motor and drive services covering fault diagnosis, repair, component replacement, test-bench verification and replacement-unit supply.
Servo Motors
Servo Drives
Encoders
Brakes
Testing
02 / Servo Diagnostics
The Alarm Is a Symptom. The Cause Can Be Somewhere Else.
A servo failure does not always mean the motor itself has failed.
A positioning error may originate from the feedback system. Excessive vibration may be related to bearings or mechanical conditions.
A drive alarm may originate from power, feedback, wiring or the drive electronics.
That is why our process begins with diagnosis before deciding what should be repaired or replaced.
The first job is not to replace a part.
It is to find the cause.
Bearings & Mechanical Condition
Bearing wear, shaft condition and mechanical damage can create noise, vibration, heat and loss of smooth motion.
Encoder / Feedback
The feedback device tells the servo system where the rotor is and how it is moving. Encoder faults, signal problems or incorrect feedback conditions can result in positioning errors, unstable operation or servo alarms.
Brake
On motors equipped with holding brakes, wear or electrical failure can prevent correct release or holding operation.
Connections & Cables
Power, feedback and communication connections can create faults that appear to originate inside the motor or drive.
Servo Drive
Drive failures can involve power-stage, control, feedback, communication or internal electronic faults.
03 / Servo Motor Repair
From Incoming Inspection to Verified Operation.
Every repair starts with the condition of the actual unit — not with a standard list of parts to replace.
Incoming Inspection
We record the motor identification, reported fault and physical condition before disassembly.
Electrical & Mechanical Diagnosis
The motor is evaluated to identify electrical, mechanical and feedback-related faults relevant to the reported problem.
Disassembly & Component Inspection
Internal components are inspected to determine what can remain in service and what requires repair or replacement.
Bearings
Brake Components
Encoder / Feedback
Connectors
Cables
Electrical Components
Mechanical Components
Repair & Reassembly
Required work is completed and the motor is reassembled with attention to the mechanical and feedback relationships required by the servo system.
Test-Bench Verification
The repaired unit is evaluated using Partech's dedicated test-bench capabilities before release.
Testing is used to verify that the serviced unit operates correctly within the applicable test conditions.
Final Technical Check
The unit is reviewed following testing before being prepared for return to the customer.
Inspect
→
Diagnose
→
Repair
→
Reassemble
→
Test
→
Verify
04 / Drive Diagnostics & Repair
Sometimes the Motor Isn't the Problem.
The servo drive controls the motor using command and feedback information.
A machine experiencing servo problems can therefore require diagnosis beyond the motor itself.
Partech provides technical evaluation and repair support for industrial servo drives.
Command → Motion
Feedback → Drive
Power-Stage Faults
Problems affecting the drive's power electronics and motor output.
Overcurrent / Overvoltage / Undervoltage
Fault conditions requiring investigation of both the drive and the surrounding electrical system.
Feedback & Encoder Faults
Problems involving feedback signals, encoder communication or the feedback interface.
Control Electronics
Internal electronic faults affecting drive operation.
Communication Faults
Problems affecting communication between the drive and the wider control system.
Thermal & Overload Conditions
Faults related to temperature, loading or drive operating conditions.
Motor or Drive?
Diagnosis Comes First.
05 / Engineering Decision
Not Every Failed Servo Should Be Repaired.
A repair only makes sense when it is technically viable and appropriate for the application.
If repair is not the right path, Partech can support the requirement through its supply capabilities.
Repair
When the existing unit can be technically restored and returned to service.
Replacement
When damage, condition or operational requirements make replacement the more appropriate option.
New Supply
Servo motors and drives selected against the required technical specification and application.
Critical Components
Support for servo-related components.
Encoders • Brakes • Connectors • Cables • Servo Components
06 / Dedicated Test Benches
A Repair Is Not Complete Until It Is Tested.
Replacing damaged components does not by itself confirm that a servo motor is ready to return to production.
Servo operation depends on electrical, mechanical and feedback functions working together.
That is why testing is part of Partech's repair process.
Our dedicated test-bench capabilities allow serviced equipment to be evaluated after repair and before release, providing an additional technical verification step between the workshop and the customer's machine.
Repaired. Tested. Verified.
Dedicated Test-Bench Capability
Post-Repair Verification
07 / Send Us the Unit Details
Give Our Engineers Something to Diagnose.
For faster technical evaluation, send the available information with your enquiry:
Manufacturer
Motor / Drive Model
Part Number
Nameplate Photo
Alarm or Fault Code
Machine Application
Description of the Failure
Photos / Short Video
If available, include photos or a short video showing the problem. Our technical team will review the information and determine the appropriate next step.
Contact Our Technical Team
Egypt • Saudi Arabia • Oman