Page 1: Table Of Contents
AUTOGARD SERIES XG TORQUE LIMITER Sizes 3 & 4 Instructions for use Contents General Notes Safety Warnings Residual risks Symbols used in this manual Handling Storage Surface Protection Cleaning Disposal General Arrangment Principle of Operation Labelling Installation Operation Reset after trip Torque Adjustment Removing Modules Re-fitting Modules...
Page 2: General Notes
To ensure sustained trouble-free operation, the product must be used as originally specified and selected. In the event of any change in the operating conditions (power, speed, modifications to prime mover and driven machine), it is essential to confirm the overall design and suitability. If in doubt, consult Rexnord. 2. Safety Warnings Work on the product may only be carried out when it is stationary.
Page 3: Handling
9. Disposal At the end of life, dispose of this product in accordance with local codes. Consult your local authority or refer to Rexnord for further information. British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK DX0001...
Page 4: General Arrangment
PLUNGER Principle of Operation Autogard XG Series modular torque limiters include hardened seats in one half of the torque limiter and module sub-assemblies in the other half. Torque is transmitted between the plungers in the module sub-assemblies and seats. If the application torque exceeds the trip torque of the torque limiter the plungers are pushed away from the seats and the torque limiter disengages.
Page 5: Installation
1. Verify XG correctly supplied. 2. Inspect for transport damage. 3. Clean hub bores. 4. Stop and lock drive. 5. Use lifting eyes. British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK DX0001 Telephone: +44 (0)1285 640333 October 2017 http://www.rexnord.com/autogard Supersedes NEW...
Page 6 7. Fit hub set screws. = Use Loctite 243 1.2. lbf.in 1190 1.3. 8. Place Wrapflex Ring over S2 hub. British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK DX0001 Telephone: +44 (0)1285 640333 October 2017 http://www.rexnord.com/autogard Supersedes NEW...
Page 7 = Use Loctite 243 Size lbf.ft 12. For XG4 only refit module. = Use Loctite 243 lbf.ft See Section 14.d British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK DX0001 Telephone: +44 (0)1285 640333 October 2017 http://www.rexnord.com/autogard Supersedes NEW...
Page 8 Angular Misalignment Limits Installation Operation Max(X-Y) Max(X-Y) Size ° ° 14. Fit Wrapflex element. 15. Slide Wrapflex cover over element. British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK DX0001 Telephone: +44 (0)1285 640333 October 2017 http://www.rexnord.com/autogard Supersedes NEW...
Page 9 16. Fit cover screws. lbf.in 17. Fit trip sensor: S1 is driving. S2 is Driving Operating voltage [V] 10...30 DC British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK DX0001 Telephone: +44 (0)1285 640333 October 2017 http://www.rexnord.com/autogard Supersedes NEW...
Page 10: Operation
19. Complete installation by fitting guards compliant with local codes Operation a. Reset after trip 1. Stop and lock drive. 2. Remove cause of overload. British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK DX0001 Telephone: +44 (0)1285 640333 October 2017 http://www.rexnord.com/autogard Supersedes NEW...
Page 11: Torque Adjustment
4. Pry or Tap plunger ends. 5. Replace guards 6. Resume normal operation. b. Torque Adjustment Do not adjust red set screws British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK DX0001 Telephone: +44 (0)1285 640333 October 2017 http://www.rexnord.com/autogard Supersedes NEW...
Page 12 3. Adjust trip torque using adjuster. All modules must be adjusted equally. Increase Trip Torque Decrease Trip Torque 4. Re-tighten lock screws = Use Loctite 243 lbf.in British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK DX0001 Telephone: +44 (0)1285 640333 October 2017 http://www.rexnord.com/autogard Supersedes NEW...
Page 13: Removing Modules
If modules are tripped follow reset procedure. 2. Identify modules and their positions 3. Remove 4 screws 4. Remove module British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK DX0001 Telephone: +44 (0)1285 640333 October 2017 http://www.rexnord.com/autogard Supersedes NEW...
Page 14: Re-Fitting Modules
2. Apply BP Energrease LS3 or similar to seats 3. Match and refit modules 4. Refit screws = Use Loctite 243 ft.lbf British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK DX0001 Telephone: +44 (0)1285 640333 October 2017 http://www.rexnord.com/autogard Supersedes NEW...
Page 15: Fitting New Modules
3. Press and release plunger end by 4. Fit Clamp Ring to Module 5. Fit clamp screw 6. Ensure module is seated. British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK DX0001 Telephone: +44 (0)1285 640333 October 2017 http://www.rexnord.com/autogard Supersedes NEW...
Page 16 11. Fit 4 screws = Use Loctite 243 ft.lbf 12. Repeat Steps 3 to 11 for remaining modules British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK DX0001 Telephone: +44 (0)1285 640333 October 2017 http://www.rexnord.com/autogard Supersedes NEW...
Page 17: Seat Replacement
* Not supplied by Autogard 4. Clean and degrease seat hole and 5. Press in new seat. Use Loctite 241 new seat British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK DX0001 Telephone: +44 (0)1285 640333 October 2017 http://www.rexnord.com/autogard Supersedes NEW...
Page 18: Regular Inspection
If wear debris or cracks are seen the maintenance procedure should be followed. 3. Refit guards compliant with local codes. British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK DX0001 Telephone: +44 (0)1285 640333 October 2017 http://www.rexnord.com/autogard Supersedes NEW...
Page 19: Maintenance
2. Remove Wrapflex cover set screws. Size 3. Slide off Wrapflex cover. 4. Remove Wrapflex element. 5. Inspect element for damage and wear. British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK DX0001 Telephone: +44 (0)1285 640333 October 2017 http://www.rexnord.com/autogard Supersedes NEW...
Page 20 7. Slide Wrapflex cover over element. 8. Fit cover screws. Nm lbf.in 9. Check all fastener tightening torques. Use Loctite 242 or 243 British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK DX0001 Telephone: +44 (0)1285 640333 October 2017 http://www.rexnord.com/autogard Supersedes NEW...
Page 21: Troubleshooting
Replace worn parts Worn torque limiter bearing Replace bearing Worn coupling or loose fasteners Replace worn parts, tighten fasteners British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK DX0001 Telephone: +44 (0)1285 640333 October 2017 http://www.rexnord.com/autogard Supersedes NEW...