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Eaton Airflex DBB Assembly Instructions Manual

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DBB 8104
Installation, Operation and Maintenance of
®
Airflex
Corrosion Protection
DBB Brake Assembly with
Forw ard this manual to the person responsible
for Installation, Operation and Maintenance of
the product described herein. Without access
to this information, faulty Installation, Operation
or Maintenance may result in personal injury or
equipment damage.
Use Only Genuine Airflex
The Airflex Division of Eaton Corporat ion recommends the use
of genuine Airflex replacement parts. The use of non-genuine
Airflex replacement parts could result in subst andard product
perf ormance, and may void your Eaton w arranty. For optimum
performance, contact Airflex:
In Ohio: 800-233-5903
Out side Ohio: 800-233-5890
May, 1997
(Revised: January, 1998)
204138
© Copyright Eaton Corp., 1998, All rights reserved.
Warning
Caution:
®
Replacement Parts
PDF format

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Summary of Contents for Eaton Airflex DBB

  • Page 1 The Airflex Division of Eaton Corporat ion recommends the use of genuine Airflex replacement parts. The use of non-genuine Airflex replacement parts could result in subst andard product perf ormance, and may void your Eaton w arranty. For optimum performance, contact Airflex: In Ohio: 800-233-5903...

  • Page 2: Table Of Contents

    Table of Contents 1.0 INTRODUCTION ......1.1 Description ......1.2 How it Works .
  • Page 3 Reaction Plate Sub-assembly Cylinder Decal Plate Hex head Screw Release Spring Polypak seal Hex Head Screw Spring Spring Retainer Polypak Seal Friction disc and ring gear sub-assembly © Copyright Eaton Corp., 1998. All rights reserved. DBB 8104 PDF format (Revised: January, 1998)

  • Page 4: Introduction

    (30) are clamped between the applications where spring set (power off) pressure plate and mounting flange. braking is required. All Airflex DBB brakes are supplied with long 1.1.2 wearing, NON-ASBESTOS friction material. © Copyright Eaton Corp., 1998. All rights reserved.

  • Page 5: Installation

    Failure to follow these instructions will result in unreasonable exposure to hazard- ous conditions or personal injury. Incorrect Track Correct Track Figure 3 © Copyright Eaton Corp., 1998. All rights reserved. DBB 8104 PDF format (Revised: January, 1998)

  • Page 6: Air Supply Syst Em

    Grade 8 fasteners are specified may result in failure of the fasteners and a sudden and drastic reduction in brake torque. © Copyright Eaton Corp., 1998. All rights reserved. DBB 8104 PDF format (Revised: January, 1998)

  • Page 7: Operation

    Use poppet type valves and locate as close as possible to the brake. The non-asbestos friction material used on Airflex DBB brakes may not If the DBB brake is being used on a develop rated torque initially, as a mechanical power press, special short wear in period is required.

  • Page 8: Periodic Maintenance

    (18) and Refer to Section 4.2. washers (17). Exhaust the air pressure. NOTE: The socket size for locknuts (18) is 1 1/16" x 4" deep socket. © Copyright Eaton Corp., 1998. All rights reserved. DBB 8104 PDF format (Revised: January, 1998)
  • Page 9 If step is worn in gear, gear must be Gear and Ring Gear Backlash (1.0 mm). replaced. Gear Measure this gap with brake engaged. Wear Grooves Figure 5 Figure 6 © Copyright Eaton Corp., 1998. All rights reserved. DBB 8104 PDF format (Revised: January, 1998)

  • Page 10: Frict Ion Disc Replacement

    Inspect the pressure plate wear surface. If 4.2.9 part number. the wear reaches or exceeds then limit in Table 4 replacement is required. Refer to section 4.5 for further dis-assembly procedures. © Copyright Eaton Corp., 1998. All rights reserved. DBB 8104 PDF format (Revised: January, 1998)
  • Page 11 When setting manually, use an ar- Disc bor press and keep the setting tool square Friction Disc to avoid splitting the rivet. Anvil Core Figure 9 © Copyright Eaton Corp., 1998. All rights reserved. DBB 8104 PDF format (Revised: January, 1998)

  • Page 12: Cylinder Seal Replacement

    Place the springs into the pockets in the 4.5.6 pressure plate per Figure 11. Place the spring retainers on top of the 4.5.7 springs. Figure 10 © Copyright Eaton Corp., 1998. All rights reserved. DBB 8104 PDF format (Revised: January, 1998)

  • Page 13: Bushing Replacement

    Clean out bores and remove old Loctite 4.6.4 NOTE: Install all wear spacers if new friction discs are used. Place a release spring over every other 4.7.2 clamp tube. © Copyright Eaton Corp., 1998. All rights reserved. DBB 8104 PDF format (Revised: January, 1998)

  • Page 14: Corrosion Protection

    The following is the original paint specifica- 4.7.4 tions and procedures: Wear Spacer Figure 13 © Copyright Eaton Corp., 1998. All rights reserved. DBB 8104 PDF format (Revised: January, 1998)

  • Page 15: Ordering Information/Technical Assistance

    Dupont Gancin is a trade mark of Dupont High Performance coating at 3-4 mils dry film thickness. Coatings. Teflon is a trademark of dupont co., film division. © Copyright Eaton Corp., 1998. All rights reserved. DBB 8104 PDF format (Revised: January, 1998)

  • Page 16: Parts Lists

    Friction Disc & Ring Gear 416478 416478 Sub-assembly Friction Disc 514180 514180 Ring Gear 514179 514179 P/L 146300BN (514208) P/L 146300BJ (514181) 1 Not included on brake part list. © Copyright Eaton Corp., 1998. All rights reserved. DBB 8104 PDF format (Revised: January, 1998)

  • Page 17: 8.0 Revisions

    Original Publication Date May 1997 Revision Date Change Complete restructuring 1 DEC 97 ADD friction disc and ring gear P/N’s to 6.0 20 JAN 98 © Copyright Eaton Corp., 1998. All rights reserved. DBB 8104 PDF format (Revised: January, 1998)
  • Page 18 (12) months from the date of SPECIFICALLY EXCLUDED. shipment to Purchaser, provided such Product is properly installed, properly maintained, operated under normal In no event shall Eaton be liable for conditions with competent special, incidental or consequential supervision. Warranty claims shall be damages.

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