Air Torque AT651U - User Manual

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Original instructions

EB AT-RP-4GU EN

4th Generation Upgrade Series

Rack&Pinion actuators

AT045U → AT801U models

Edition November 2020

Table of Contents

Other manuals for Air Torque AT651U

Installation Maintenance And Operating Instructions12 pages

Questions and Answers

C
callahanjessicaAug 9, 2025
What to do if my Air Torque Controller loses power?
- R
  Randall PadillaAug 9, 2025
  If your Air Torque Controller experiences a loss of power, first ensure that the supply pressure is correct by checking the control system. Then, inspect all tubing and fittings for blockages, compression, or sealing issues, removing any obstructions or damaged parts. Also, you should disassemble the actuator to inspect and replace any damaged seals. Check the air exhaust hole and remove any plugs or foreign objects that may be blocking it.
A
andre56Aug 19, 2025
Why is my Air Torque AT651U rotation uneven?
- G
  Grace ThomasAug 19, 2025
  Uneven rotation in your Air Torque Controller can stem from several causes. Start by checking the supply system to ensure the pressure is correct. If that's not the issue, the actuator may need lubrication; disassemble it, lubricate all sliding parts, and then reassemble. Worn or damaged components can also cause this, so inspect and replace any that are faulty. Ensure the control system components are correctly assembled. If the actuator is mounted on a valve, consult the valve documentation and contact the manufacturer for assistance.
N
Nicholas LopezAug 29, 2025
How to fix incomplete rotation of Air Torque Controller?
- J
  Joshua HodgeAug 29, 2025
  Incomplete rotation of your Air Torque Controller can occur due to several reasons. First, ensure the stroke is correctly adjusted. Next, disassemble the actuator and check for any foreign objects inside. Also, incorrect assembly after maintenance can cause this issue, so disassemble and reassemble the actuator correctly. Make sure the control system components are correctly assembled. If the actuator is mounted on a valve, check the valve documentation and contact the manufacturer.

Summary

Safety Instructions and Measures

Safety Precautions: PPE, Hazards, and Residual Risks

Recommends PPE, notes safety devices, and warns about residual hazards like pressure and moving parts.

1.1 Severe Injury Risks

Details risks of severe injury from bursting components and falling loads, mandating safety procedures.

1.2 General Injury and Property Damage Risks

Device Markings and Identification

2.1 Actuator Nameplate Sample and Details

Design and Operational Principles

3.3 Technical Data and Specifications

Provides essential technical specifications including media, pressure, temperature, and stroking time.

Mounting and Assembly Procedures

5.3 Mounting Actuator onto Valve

Provides step-by-step instructions for attaching the actuator to the valve.

Actuator Start-up

Actuator Operation

Malfunctions and Troubleshooting

8.1 Troubleshooting Guide

Lists common malfunctions and recommended actions for diagnosis and repair.

8.2 Emergency Action Procedures

Defines the operator's responsibility for emergency actions during malfunctions.

Service and Maintenance

9.1 Preparation for Servicing

9.3 Actuator Disassembly Procedures

9.5 Actuator Reassembly Procedures

Actuator Decommissioning

Actuator Repairs

Annex - Tools and Specifications

15.2 Tightening Torque Specifications

Provides specific torque values for various screws and nuts used in assembly.

Summary

Safety Instructions and Measures

Safety Precautions: PPE, Hazards, and Residual Risks

Recommends PPE, notes safety devices, and warns about residual hazards like pressure and moving parts.

1.1 Severe Injury Risks

Details risks of severe injury from bursting components and falling loads, mandating safety procedures.

1.2 General Injury and Property Damage Risks

Device Markings and Identification

2.1 Actuator Nameplate Sample and Details

Design and Operational Principles

3.3 Technical Data and Specifications

Provides essential technical specifications including media, pressure, temperature, and stroking time.

Mounting and Assembly Procedures

5.3 Mounting Actuator onto Valve

Provides step-by-step instructions for attaching the actuator to the valve.

Actuator Start-up

Actuator Operation

Malfunctions and Troubleshooting

8.1 Troubleshooting Guide

Lists common malfunctions and recommended actions for diagnosis and repair.

8.2 Emergency Action Procedures

Defines the operator's responsibility for emergency actions during malfunctions.

Service and Maintenance

9.1 Preparation for Servicing

9.3 Actuator Disassembly Procedures

9.5 Actuator Reassembly Procedures

Actuator Decommissioning

Actuator Repairs

Annex - Tools and Specifications

15.2 Tightening Torque Specifications

Provides specific torque values for various screws and nuts used in assembly.

Air Torque AT651U Specifications

General

Brand	Air Torque
Model	AT651U
Category	Controller
Language	English

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