Eaton Airflex WCB2 Accompaniment To The Installation, Operation And Maintenance Manual
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Eaton Airflex WCB2 Accompaniment To The Installation, Operation And Maintenance Manual

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WCB11070
Installation, Operation
and Maintenance of
®
Airflex
WCB2
Tensioner / Brake
KAIZEN SYSTEMS INTL LLC
DISTRIBUTOR
WWW.AIRCLUTCH-KAIZEN.COM
KAIZEN@KAIZEN.COM.CO
Forward 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.
Airflex
Use Only Genuine
The Airflex Division of Eaton Corporation recommends
the use of genuine Airflex replacement parts. The use of
non-genuine Airflex replacement parts could result in
substandard product performance, and may void your
Eaton warranty. For optimum performance, contact
Airflex:
I
n the U.S.A. and Canada:(800) 233-5926
Outside the U.S.A. & Canada: (216) 281-2211
Internet: www.airflex.com
April, 2002
(Revised: October, 2007
204182
©
Copyright Eaton Corp., 2007. All rights reserved.
®
Replacement Parts.
)

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Summary of Contents for Eaton Airflex WCB2

  • Page 1 ® Airflex Use Only Genuine Replacement Parts. The Airflex Division of Eaton Corporation recommends the use of genuine Airflex replacement parts. The use of non-genuine Airflex replacement parts could result in substandard product performance, and may void your KAIZEN SYSTEMS INTL LLC Eaton warranty.

  • Page 2: Table Of Contents

    Parts (Corrosion Resistant) ..............34 © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)
  • Page 3 Wear Measurements X, Y & Z Gaps Wear Plate Fastener Torque Inlet and Outlet Port Sizes Wear Limits for WCB2 Components (Ref. Figs. 1 & 2 and Section 4.0) © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)
  • Page 4 Friction Disc Assembly Cylinder Inner Support Ring Friction Disc Seal (Inner) Outer Support Ring Friction Disc Core Seal (Outer) Flat Head Screw Rivet Gear (Not Included in P/L) Pipe Plug Washer © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)
  • Page 5 Figure 2 © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)

  • Page 6: Introduction

    WCB2 tensioners are available in various sizes and quantities of friction discs. The model number identi- fies the number of discs and the nominal disc diame- ter. For example, 324WCB2 indicates three 24" diameter discs. © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)

  • Page 7: Installation

    0.010 (0.25) 0.012 (0.30) 36WCB2 0.010 (0.25) 0.019 (0.48) 48WCB2 0.010 (0.25) 0.025 (0.64) Correct Incorrect * Perpendicularity measured near the outside diameter of the mounting flange. Figure 3 © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)

  • Page 8: Mounting

    5/8-11NC-2 5/8-11NC-2 1 3/8-6NC Size 1-8NC Gr.8 Gr.8 Gr.8 Gr.8 Gr.8 Gr.5 Mounting Screw Quantity Torque, Lubed 70 (95) 150 (203) 150 (203) 150 (203) 660 (895) 1100 (1490) © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)

  • Page 9: Air System

    TABLE 5 Air Inlet Size Model Thread Size 8WCB2 3/8”-18 NPT 14WCB2 1/2”-14 NPT 18WCB2 1/2”-14 NPT 24WCB2 1/2”-14 NPT Figure 4 36WCB2 3/4”-14 NPT 48WCB2 1”-11.5 NPT © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)

  • Page 10: Coolant System

    Reductions in the recommended line diameter should be avoided to prevent excessive line pres- sures. Maximum allowable water pressure is depen- dent upon tensioner size and specific applica- tion requirements. © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)
  • Page 11 C) temperature rise between inlet and outlet. 2 - Flow rate is based on requirement of 1 U.S. GPM per 10 HP (1.97 kW per dm /min) thermal dissipation. © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)
  • Page 12 For efficient operation of the WCB2, an adequate sup- ply of filtered fresh water is required. (See 2.4.1 - 2.4.2). Excessive water hardness promotes the forma- tion of scale deposits, which, in time, will affect the © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)

  • Page 13: Operation

    Table 9. Exposure to speeds in excess of these values may cause the friction discs (8) to burst and result in extensive damage to the tensioner and/or cause personal injury. © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)

  • Page 14: Pressure And Speed Limits

    18WCB2 1600 Water/Ethylene Maximum Outlet Coolant 24WCB2 1200 Glycol Mixture % by Temperature°F (°C) Volume 36WCB2 100/0 150 (66) 48WCB2 70/30 165 (74) 60/40 165 (74) 50/50 170 (77) © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)

  • Page 15: Maintenance

    Table 10. On multi-disc units, a wear adjustment is required when the "X" dimension has been reached and the friction discs or "Y" or "Z" dimension(s) are NOT worn to their limits. © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)
  • Page 16 It may be necessary to push the pressure plate and reaction plate(s) away from the mounting flange so that the release springs can be moved to gain access to the wear spacers. © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)
  • Page 17 Figure 8 Figure 7 Figure 9 Figure 10 © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)
  • Page 18 3.37 2.95 0.60 1.02 3.37 2.95 3.37 2.95 * Value shown is gap after wear adjustment. New or rebuilt brakes may vary slightly from this value due to tolerances. © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)

  • Page 19: Disassembly Procedures

    4.3.13 Refer to Section 4.7 to replace seals. Ensure that the machinery is and will remain in a safe position prior to loosening fasteners 4.3.14 Assemble the tensioner per Section 4.9. or removing the tensioner. © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)

  • Page 20: Friction Material Replacment (Sizes 8 And 14)

    Use only genuine Airflex friction material. Use Disc of material not of Airflex origin may result in unpredictable performance. Friction Disc Anvil Core 4.5.2 Disassemble the tensioner per Section 4.3. Figure 13 © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)

  • Page 21: Wear Plate Replacement

    ® Loctite #262 may irritate sensitive skin. Refer to the product label for proper safety precau- Follow manufacturer's instructions and tions. proper safety precautions for application of epoxy coatings. © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)
  • Page 22 See Figure 15. A second bead of sealant .060"-.090" (1,5mm - 2,3mm) in size should then be applied in the shallow groove. See Figure 16. Figure 16 © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)
  • Page 23 36" and 48" after replacement of the wear plates or the adjoining friction material. See Figure 18 for machining specifications. Clean all wear surfaces after machining to remove any residual contaminates. Figure 17 © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)

  • Page 24: Cylinder Seal Replacement

    (33) will be free to move out of the cyl- inder bore. 4.7.11 Position the cylinder on a flat, level surface so that the pressure cavity faces upward. © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)

  • Page 25: Bushing Replacement

    10 minutes, the seals have been properly installed. If excessive leaking is found, disassemble the piston / cylinder and inspect the seals or sealing surfaces for damage. repair or replace components as required. © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)

  • Page 26: Assembly Procedures

    The locknuts (18) must be tightened gradually to prevent damage to the tensioner compo- nents. 4.9.18 Re-install the tensioner per Section 2.0 © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)

  • Page 27: Corrosion Protection

    , Locquic , and Superflex are registered trademarks of Henkel Corporation. ® Polypak is a registered trademark of Parker Hannifin Corporation. ® MOLUB-ALLOY is a trademark of Castrol Industrial Lubricants. © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)
  • Page 28 3.06” (77,72) 18WCB2 1.312” (33,33 3.16” (80,26) 3.06” (77,72) 24WCB2 1.668” (42,88) 4.000” (101,6) 3.88” (98,55) 36WCB2 2.065” (52,45) 4.000” (101,6) 3.88” (98,55) 48WCB2 2.375” (60,33) 5.000” (127,6) 4.85” (123,19) © Copyright Eaton Corp. 2007, All Rights reserved. WCB11070 (PDF FORMAT)
  • Page 49 ARE SPECIFICALLY EXCLUDED. deliver its rated capacity, for a period of twelve (12) months from the date of shipment to Pur- In no event shall Eaton be liable for special, chaser, provided such Product is properly incidental or consequential damages. Eaton’s...

This manual is also suitable for:

Airflex 8wcb2Airflex 14wcb2Airflex 18wcb2Airflex 24wcb2Airflex 36wcb2Airflex 48wcb2

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