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TECO AEHB - User Manual

TECO AEHB
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TECO Instruction Manual
Squirrel Cage Induction Motors
Whilst Motors are installed awaiting commissioning they must be adequately
protected against the elements, all external components in particular the shaft
extension and external labyrinth seals at the drive end must be fully covered
to avoid water ingress entering the motor body whilst stationery.
Please ensure that both the non drive end and drive end antifriction bearings
are fully purged with sufficient grease at first start up/commissioning
with the recommended grade and quantity of grease.

Table of Contents

Questions and Answers

  • D
    Dr. Rebecca BerryAug 16, 2025
    Why is my TECO Engine motor overheating?
    • H
      Hannah StoutAug 16, 2025
      If your TECO Engine motor is overheating, it could be due to several reasons. Possible causes include overload, intermittent overload, under-voltage, over-voltage, a clogged ventilation duct, ambient temperature exceeding 450C, friction between the rotor and stator, a blown fuse (resulting in single-phase rotation), poor contact in circuit switches or the starting switch, or an unbalanced three-phase voltage. You can lighten the load, check the circuit capacity and power source, remove any foreign matter in the duct, lower the ambient temperature, repair any friction issues, install the specified fuse, and check and repair circuit switches. If there is an unbalanced three-phase voltage, check the circuit or consult the power company.
  • K
    Karen AvilaAug 19, 2025
    What to do if the fuse keeps blowing in my TECO Engine?
    • A
      Aaron PetersAug 19, 2025
      If your TECO Engine experiences a fuse blowing, circuit breaker tripping, or a slow start accompanied by electromagnetic noise, it may be due to a short circuit, incorrect wiring, poor contact in circuit switches, broken wiring, poor contact of the starting switch, or an incorrect connection of the starting switch. To address this, check the circuit and wiring, and check and repair any poor contacts or broken wiring.
  • J
    jennifer43Aug 22, 2025
    How to troubleshoot a TECO Engine that fails to start without load?
    • L
      Lisa ElliottAug 22, 2025
      If your TECO Engine fails to start without any load, it could be due to several reasons: the power may be off, the switch may be off, there might be no fuse installed, the wires could be broken, the lead could be broken, or the winding might be faulty. To resolve this, consult the power company, switch the device on, install a fuse, and check and repair any broken wires, leads, or faulty winding.
  • G
    gabrielle74Aug 26, 2025
    What to do if my TECO AEHB overloads after starting?
    • R
      Ruth Wu DDSAug 26, 2025
      If your TECO Engine is experiencing overload after starting, it might be due to insufficient capacity of the fuse or breaker, a general overload, or a high load at low voltage. To solve this, replace the fuse or breaker with one of adequate capacity, lighten the load, and check the circuit capacity while reducing the load.
  • L
    Laura HerreraAug 28, 2025
    Why is the switch on my TECO AEHB overheating?
    • T
      Todd StewartAug 28, 2025
      If your TECO Engine switch is overheating, it could be due to insufficient capacity of the switch or a high load. To resolve this, replace the switch with one of adequate capacity or lighten the load.
  • M
    Megan OdonnellAug 31, 2025
    What causes bearing overheat in a TECO AEHB?
    • R
      Rachel RodriguezAug 31, 2025
      If your TECO Engine bearings are overheating, it could be due to misalignment between the motor and the load, not enough grease, or high bearing noise. To address this, realign the motor and load, fully purge the bearings with grease, or replace the damaged bearing.
  • P
    Patrick WhiteSep 3, 2025
    What causes mechanical vibration in my TECO Engine?
    • N
      Natalie LloydSep 3, 2025
      If your TECO Engine is experiencing mechanical vibration, it could be due to a broken fan blade, unsymmetrical centers between the belt sheaf, central points of couplings not lying on the same level, improper mounting installation, or a motor mounting bed that is not strong. To address this, replace the fan, align the central points, adjust the central points of couplings to the same level, lock the mounting screw, or reinforce the mounting bed.
  • M
    Maria LoweSep 6, 2025
    Why is my TECO AEHB making a sudden sharp noise and smoking?
    • M
      Morgan AdamsSep 6, 2025
      If your TECO Engine is producing sudden sharp noise and smoking, it could be due to a short circuit of windings, not enough grease, deterioration of grease, or excessive noise. To resolve this, repair the short circuit, fully purge bearings with grease, clean and re-grease the bearing, or replace the damaged bearing.
  • J
    Jason GreeneSep 9, 2025
    What causes electro-magnetic vibration in my TECO Engine?
    • K
      Kenneth MitchellSep 9, 2025
      If your TECO Engine is experiencing electro-magnetic vibration, it could be due to a short circuit of windings. To address this, repair the short circuit.
  • E
    Eric EstradaSep 12, 2025
    How to fix mechanical noise caused by machinery in my TECO AEHB?
    • S
      Sean CopelandSep 12, 2025
      If your TECO Engine is producing mechanical noise, it could be due to a loose belt sheaf, loose coupling, loose screw, or fan rubbing. To resolve this, adjust the key and lock the screw, adjust the position of couplings and tighten them, tighten any loose screws, or adjust the fan position.

Summary

MOTOR DESCRIPTION

SAFETY WARNING

Important safety instructions for motor installation, operation, and maintenance to ensure warranty validity.

TECHNICAL DATA

INSTALLATION AND COMMISSIONING

INSPECTION UPON RECEIPT

Checklist for verifying motor specifications and condition upon delivery.

STORAGE

Procedures for proper storage to maintain motor integrity and insulation resistance.

Hoisting Safety Points

Essential safety guidelines and procedures for safely lifting and moving the motor.

TRANSPORTATION

Securing the motor during transport to prevent damage to internal parts, especially the shaft.

INSTALLATION

Guidelines for site conditions, ventilation, space, and foundation requirements for motor installation.

MOUNTING

Importance of rigid motor support for maintaining alignment and preventing vibration issues.

COUPLING & ALIGNMENT

Procedures and tolerances for aligning motor and driven equipment to prevent bearing and shaft damage.

INSTALLATION FOR BELT DRIVE

Specific considerations for installing motors when using belt transmission systems.

ELECTRICAL CONNECTIONS

Guidelines for safe and correct wiring of motors according to nameplate specifications.

AUXILIARY DEVICES

Information on thermal protection devices like Thermistors (PTC) and RTDs.

OPERATING INSTRUCTIONS

EXAMINATION BEFORE START

Pre-operation checks including wiring, connections, earthing, and bearing lubrication.

STARTING OPERATION

Procedures for initial motor start-up, load handling, and restart attempts.

CAUTIONARY POINTS TO NOTE

Important warnings regarding bearing temperature, vibration, and starting procedures.

ROUTINE MAINTENANCE

IMPORTANCE OF DAILY INSPECTION

The necessity of daily checks for early fault detection and preventative action.

POINTS TO NOTE WHEN STARTING

Key checks to perform during the motor's starting sequence for normal operation.

TEMPERATURE RISE

Methods for measuring and interpreting motor temperature rise as an indicator of condition.

VIBRATION

Identifying causes of vibration and potential faults that may develop if not addressed.

NOISE

Understanding normal and abnormal bearing sounds and their causes.

ODOUR

Common causes for motor odors, often related to overheating or lubrication issues.

MEASUREMENT OF THREE PHASE CURRENT

Analysis of current measurements for detecting overloads, imbalances, or winding faults.

MOTOR APPEARANCE

Importance of cleaning external surfaces and cooling vents for efficiency and longevity.

PERIODIC MAINTENANCE

REGULAR INSPECTION & MAINTENANCE

Key aspects of periodic checks, including wear, insulation, and general condition.

CLEANING OF COILS, DRYING & VARNISHING TREATMENT

Procedures for cleaning motor coils, drying them after moisture exposure, and applying varnish.

VARNISH

Recommendations for varnish types and methods for applying and curing varnish for insulation.

Maintenance After Long Storage

Essential checks before restarting a motor that has been stored for an extended period.

RECORDS OF OPERATION AND MAINTENANCE

Objectives and essential contents for maintaining operation and maintenance records.

POINTS TO NOTE ON DISASSEMBLY

Guidelines for safe and effective disassembly of motor components, including parts handling and cleaning.

BEARINGS

MAINTENANCE OF ROLLING BEARING

General information and specific procedures for maintaining motor bearings, including lubrication types.

Bearing Temperature Monitoring

Temporary temperature rises during greasing are normal; monitor for sustained high temperatures.

NOISE OF BEARING

Distinguishing normal bearing noise from abnormal noise indicative of impending failure.

VIBRATION

Preferred vibration levels and procedures for investigation if high vibration is detected.

REGULAR INSPECTION

Schedule and key points for regular monthly and yearly inspection of motors.

Inspection Notes

Specific checks for electrical etching, VVVF drive considerations, and installation precision.

Troubleshooting

FAULT FINDING & RECOGNITION

Table of common faults, their symptoms, causes, and recommended remedies for motor issues.

TECO AEHB Specifications

General IconGeneral
BrandTECO
ModelAEHB
CategoryEngine
LanguageEnglish

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