Rexnord AUTOGARD 400 Series Installation And Maintenance Instructions Manual
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Rexnord AUTOGARD 400 Series Installation And Maintenance Instructions Manual

Torque limiter
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AUTOGARD 400 SERIES TORQUE LIMITER
Installation and Maintenance
Instructions
th
D40014 Edition 17
September 2018
The English language version constitutes "Original Instructions"
in accordance with the EU Machinery Directive

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Summary of Contents for Rexnord AUTOGARD 400 Series

  • Page 1 AUTOGARD 400 SERIES TORQUE LIMITER Installation and Maintenance Instructions D40014 Edition 17 September 2018 The English language version constitutes “Original Instructions” in accordance with the EU Machinery Directive...

  • Page 2: Table Of Contents

    Assembly of sizes 6 - 8 ..........................30 Lubricants ..............................32 Stocking spare parts, Customer facility addresses ..................32 British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK D40014 Telephone: +44 (0)1285 640333 Fax: +44 (0)1285 65947 September 2018 (Supersedes December 2009) http://www.rexnord.com...

  • Page 3: Technical Data

    B = Potential service item – spares stock is recommended in critical applications C= Spares stock is not normally required For details of specifications, part number and quantities required for specific sizes and models, please contact Rexnord. British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK D40014...

  • Page 4: General Technical Data

    • Figure 1 refers to a model 403. Refer to section 1.3 for other models. RR Top Bottom Figure British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK D40014 Telephone: +44 (0)1285 640333 Fax: +44 (0)1285 65947 September 2018 (Supersedes December 2009) http://www.rexnord.com...
  • Page 5 • Note that the set torque must be high enough to withstand start up torques. • Rexnord Autogard Torque Limiters are supplied with a durable surface protection, so that no painting is necessary. If however, paint is applied by the customer, the following points should be observed: Do not clean the coupling by pressure washing or solvent dip.

  • Page 6: Size 6-8

    In the case of type RR, parts 35 (anti-rotation pins for pawls) are omitted 403-RR Top 403-SR Bottom British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK D40014 Telephone: +44 (0)1285 640333 Fax: +44 (0)1285 65947 September 2018 (Supersedes December 2009) http://www.rexnord.com...
  • Page 7 • Note that the set torque must be high enough to withstand start up torques. • Rexnord Autogard Torque Limiters are supplied with a durable surface protection, so that no painting is necessary. If however, paint is applied by the customer, the following points should be observed: Do not clean the coupling by pressure washing or solvent dip.

  • Page 8: Other Models

    H7 housing using an m5 fitting pin, the resulting bore will be H7 which will provide a running fit on the torque limiter hub. If a different bearing is used or for sizes 6 and over, refer to drawings or consult Rexnord. British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK...

  • Page 9: Model 406N With N-Eupex Elastomeric Coupling

    1000 Where n is speed in rpm and R is taken from Table 6. British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK D40014 Telephone: +44 (0)1285 640333 Fax: +44 (0)1285 65947 September 2018 (Supersedes December 2009) http://www.rexnord.com...

  • Page 10: Model 409 With Large Bore Hub

    For sizes 2-5, the 3 x screw holes are positioned at 30° to the 6 x pin holes. British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK D40014 Telephone: +44 (0)1285 640333 Fax: +44 (0)1285 65947 September 2018 (Supersedes December 2009) http://www.rexnord.com...

  • Page 11: General Notes

    In the interest of further development, we reserve the right to introduce modifications which we consider appropriate, while retaining the essential features, to increase efficiency and reliability. All technical questions should be referred to Rexnord at, British Autogard Ltd Telephone:...

  • Page 12: Safety Notes - Continued

    This note draws attention to general operating notes which special attention should be given. British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK D40014 Telephone: +44 (0)1285 640333 Fax: +44 (0)1285 65947 September 2018 (Supersedes December 2009) http://www.rexnord.com...

  • Page 13: Handling And Storage

    Ensure that a suitable hoist is used Storage Rexnord Autogard Torque Limiters are supplied manganese-phosphated and oiled and can be stored in a dry place for long periods of time. In the case of prolonged storage, the torque limiter should be covered to prevent excessive contamination.

  • Page 14: Technical Description

    Technical description General description The Rexnord Autogard Torque Limiter is an overload protection coupling which protects motors, gear units and machines from overload and destruction due to excessive torque and automatically interrupts the power train when the torque setting is exceeded.

  • Page 15: Disengagement Process

    (22) moves axially and with it, the limit switch plate (58). This axial movement (x) should be monitored with a limit switch or a proximity switch. Rexnord Autogard 400 Series Torque Limiters should be monitored with a limit switch or a Caution proximity switch in order to prevent unnecessary wear.

  • Page 16: General Installation Notes

    Nonobservance of these notes can lead to torque limiter damage and in extreme cases break up of parts. Flying fragments are a serious hazard and must be prevented. British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK D40014 Telephone: +44 (0)1285 640333 Fax: +44 (0)1285 65947 September 2018 (Supersedes December 2009) http://www.rexnord.com...

  • Page 17: Startup

    The tightness of the setscrews should be checked and the coupling guard fitted. Torque adjustment Rexnord Autogard Torque Limiters are supplied set to a fixed torque value in accordance with the customer’s requirements if specified at time of order, otherwise it will be set near minimum trip torque. If the exact actuating torque cannot be determined beforehand, an actuating torque range can also be stated.

  • Page 18: Torque Adjustment With Sizes 6-8

    Caution and shortening the calibration sleeve are ONLY permissible with the EXPRESS approval of Rexnord Autogard. • First of all, the locking screws (40) of the adjusting nut (23) should be slackened. These locking screws prevent accidental rotation of the adjusting nut during operation.
  • Page 19 (56) is flush with the end of the adjusting nut (23). If the end of the spring pillar is projecting, proper function of the Rexnord Autogard Torque Limiter can no longer be ensured.
  • Page 20 Refer to figures on the following page for Gap Y, Clearance A and movement X. British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK D40014 Telephone: +44 (0)1285 640333 Fax: +44 (0)1285 65947 September 2018 (Supersedes December 2009) http://www.rexnord.com...

  • Page 21: Operation

    Table lists possible malfunctions, their causes and suggestions for remedying them. If the cause cannot be established or it is not possible to remedy it with in-house equipment, we recommend that you contact Rexnord for assistance. British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK...

  • Page 22: Troubleshooting

    (32) re-engage in their seats. Any other behaviour should be investigated and remedied at once to avoid damage to the torque limiter and other equipment. Frequent disengagements of the Rexnord Autogard Torque Limiter should be investigated, as Caution otherwise premature wear may occur.
  • Page 23 British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK D40014 Telephone: +44 (0)1285 640333 Fax: +44 (0)1285 65947 September 2018 (Supersedes December 2009) http://www.rexnord.com...

  • Page 24: Maintenance And Servicing

    General Maintenance and servicing may ONLY be carried out by trained personnel. If suitable specialist personnel are not available, the torque limiter may be returned to Rexnord to ensure proper workmanship. Rexnord Autogard Torque Limiters can be used as standard in ambient temperatures of –15 C to +80 C.
  • Page 25 Note: Screws and pins should be replaced by new ones of the same strength class and type. British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK D40014 Telephone: +44 (0)1285 640333 Fax: +44 (0)1285 65947 September 2018 (Supersedes December 2009) http://www.rexnord.com...

  • Page 26: Assembly Of Sizes 1 - 5

    Ensure that the dowels are recessed 3 – 5 mm in the holes. British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK D40014 Telephone: +44 (0)1285 640333 Fax: +44 (0)1285 65947 September 2018 (Supersedes December 2009) http://www.rexnord.com...
  • Page 27 ONLY permissible with the EXPRESS approval of Rexnord. If the cage plate (26) has been removed from the slide plate (22), it should be refitted as follows. Apart from size 1 type SR, a bayonet design is used for cage plate retention.

  • Page 28: Disassembly Of Sizes 6 - 8

    • Before re-installing on the shaft, any gear, sprocket, pulley or coupling should be re-fitted. Disassembly of sizes 6 - 8 403-6RR 403-6SR British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK D40014 Telephone: +44 (0)1285 640333 Fax: +44 (0)1285 65947 September 2018 (Supersedes December 2009) http://www.rexnord.com...
  • Page 29 When disassembling the ball bearings the manufacturer’s instructions should be followed. British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK D40014 Telephone: +44 (0)1285 640333 Fax: +44 (0)1285 65947 September 2018 (Supersedes December 2009) http://www.rexnord.com...

  • Page 30: Assembly Of Sizes 6 - 8

    (39) must be tapped in. When doing so, ensure that the dowels are recessed 3-5 mm in the holes. British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK D40014 Telephone: +44 (0)1285 640333 Fax: +44 (0)1285 65947 September 2018 (Supersedes December 2009) http://www.rexnord.com...
  • Page 31 (23). When retensioning the individual spring stacks, it is ESSENTIAL to maintain the previously measured dimension ‘b’. In addition, ensure symmetrical distribution of the spring stacks. British Autogard Ltd. 2 Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT, UK D40014 Telephone: +44 (0)1285 640333 Fax: +44 (0)1285 65947 September 2018 (Supersedes December 2009) http://www.rexnord.com...

  • Page 32: Lubricants

    Caution thus impair its active and/or passive safety. No form of liability or warranty is accepted on the part of Rexnord for damage which occurs as a result of the use of non-original spare parts and accessories. Please note that special manufacturing and supply specifications frequently exist for components and that we always supply spare parts in accordance with the state of the art and in accordance with the latest legal requirements.

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