Eaton Airflex 118WCB Installation, Operation And Maintenance Manual Download Page 26

Page: 26 / 32

WCB 11060 (PDF Format)

June, 1998

124 WCB

146313AJ

146313AK (514246)

Item

Description

Part Number

Quantity

Part Number

Quantity

Mounting Flange Sub-assembly

514130-01

Wear Plate

508459

Stud

308160-07

Friction Disc Sub-assembly

514131

514147

Friction Disc

508725

512825

Friction Disc Core

514140

Clamp Tube

308206-05

Pressure Plate Sub-assembly

514130-03

Flat Washer

000153x0854

Locknut

000110x0076

Cylinder

514039

Polypak Seal

000402x0023

Polypak Seal

000402x0024

Warning Decal

203627

Name Plate

308284

Screw

000153X0644

Gear

416454

Wear Spacer

N/A

Reaction Plate Sub-assembly

N/A

Decal Plate

307753

Piston

513924

Release Spring

308212

Wear Ring

N/A

Pressure Plate Bushing

203866-01

Reaction Plate Bushing

N/A

Flat Head Screw

000421x0407

Stop Tube

308213-05

105

Brass Plug

000077x0021

Summary of Contents for Airflex 118WCB

Page 1: ...Airflex In the U S A and Canada 800 233 5890 Outside the U S A and Canada 216 281 2211 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 Installation Operation and Maintenance of Airflex WCB Water Co...

Page 2: ...ON 12 3 1 Conditions of Operation 12 3 2 Pressure and Speed Limits 13 3 3 Periodic Maintenance 13 4 0 MAINTENANCE 13 4 1 Wear Adjustment 14 4 2 Removal of the WCB 15 4 3 Dis assembly of the WCB 16 4 4 Friction Lining Replacement 16 4 5 Wear Plate Replacement 17 4 6 Cylinder Seal Replacement 19 4 7 Bushing Replacement 20 4 8 Assembly of the WCB 21 4 9 Corrosion Protection 21 5 0 ORDERING INFORMATIO...

Page 7: ...ear Spacer 9 Friction Disc Core 30 Reaction Plate Sub assembly 12 Clamp Tube 32 Decal Plate 13 Pressure Plate Sub assembly 33 Piston 17 Flat Washer 34 Release Spring 18 Locknut 47 Wear Ring 19 Cylinder 57 Flat Head Screw 21 Polypak Seal 59 Stop Tube Table 2 Tensioner Mounting Register Diameters In mm Size Female Register Male Register 18WCB 18 250 18 253 463 5 463 6 23 250 23 247 590 5 590 4 24WCB...

Page 8: ...the WCB tensioner permits midshaft or endshaft mounting The rugged construction ensures long trouble free service Several models are available having single and multiple friction discs The tensioner model number identifies the num ber of discs and the disc diameter For example 124WCB means one 24 diameter disc When size such as 24WCB is referred to in this manual it means that the informa tion giv...

Page 9: ...aration 2 1 1 Table 3 shows the relationship between the tensioner mounting surface and the end of the gear dimension A on Figure 1 3 The gear is bored and keyed for a resulting Class FN2S interference fit for inch shafting and ISO System S7h6 for metric shafting 2 1 2 Figure 4 5 and Table 2 show the mounting dimensions for the tensioner to the machine frame or reaction bracket Note that a male or...

Page 10: ...o facilitate the tensioner mounting process the friction disc assemblies should be aligned to the gear and centered in the tensioner With the tensioner laying on the floor lower the gear 28 slowly and very carefully into the splined bore of the friction disc assemblies 7 Adjust the discs so that they are centered in the tensioner and fit the gear Apply and maintain an air pressure of 25 PSIG 1 7 b...

Page 11: ...ecommended line diameter should be avoided Avoid loops and bends in the lines which may create air pockets which substantially reduce the flow of coolant Figure 7 illustrates a typical closed loop liquid to liquid coolant system The heat exchanger and temperature control would be replaced with a radiator fan and motor in a liquid to air system 2 5 2 Figure 7 shows the flow control valve settings f...

Page 12: ...5 395 120 451 424WCB 1080 805 3 4 14 NPT 130 489 108 406 128 481 140 526 160 602 136WCB 650 485 1 1 4 11 NPT 78 293 65 246 76 288 84 318 98 371 236WCB 1300 969 1 1 4 11 NPT 156 587 130 489 152 572 168 632 196 737 336WCB 1950 1454 1 1 4 11 NPT 234 880 195 738 228 863 253 958 294 1113 436WCB 2600 1937 1 1 4 11 NPT 312 1173 260 978 304 1143 336 1263 392 1474 1 Thermal rating based on a 70o F 21o C wa...

Page 13: ...ness Maximum 100 p p m pH value 7 0 to 9 0 2 5 7 Closed Loop Systems For efficient operation of the WCB in a closed loop system ethylene glycol coolant conform ing to SAE Standard J1034 should be used For preparation of the proper concentration of a water ethylene glycol mixture use makeup water which is low in corrosive ions such as chlorides and sulfates pH value of the water ethylene glycol mix...

Page 14: ...be exceeded A minimum wear in period of four hours at 50 of the rated horsepower is recommended for the friction couple to achieve rated torque 3 3 Periodic Maintenance 3 3 1 Periodically check for air leakage in the area of the cylinder seals 21 23 For replace ment refer to Section 4 0 MAINTENANCE 3 3 2 Periodically observe the friction disc assembly s with the brake released Dragging friction di...

Page 15: ...placed when worn to the bottom of the groove on the friction lining See Figure 8 See Table 17 in Section 6 0 for new wear groove depth 4 1 3 1 Disconnect air and water supply lines from the tensioner 4 1 3 2 While supporting the cylinder 19 loosen the locknuts 18 ONE TURN AT TIME and in an alternating crosswise pattern until the spring force is completely relieved Remove the locknuts and washers 1...

Page 16: ...ulti disc units repeat steps 4 1 3 7 and 4 1 3 8 for each additional friction disc and reaction plate 4 1 3 10 Slide the pressure plate and the cylinder piston assembly onto the studs Lubricate the threads on the end of the studs with 30 wt oil or anti seizing compound and install the washers 17 wear spacers 29 and the locknuts 18 removed in 4 1 3 6 4 1 3 11 The wear spacers are stored under the l...

Page 17: ...c units repeat step 5 2 4 for each reaction plate and friction disc set until all are removed 4 3 6 Slide the clamp tubes 12 and wear spacers 29 off each of the studs Note Wear limit tables for the following paragraphs are in section 6 0 4 3 7 To inspect cylinder and seals refer to section 4 5 4 3 8 Inspect the friction disc assemblies 7 for wear or contamination On single and multi disc units the...

Page 18: ...s holding the wear plates and remove the wear plates If the wear plates cannot be easily lifted off gently tap the O D to break the gasket seal Do not attempt to break the gasket seal by prying between the wear plate and housing Damage to the sealing surfaces may occur 4 5 3 Inspect the water passages and if necessary use a wire brush to clean them If repainting is necessary sand blast the water p...

Page 19: ...8 For each wear plate being replaced follow the tightening sequence shown in Figure 12 for the first 16 screws The remaining screws may be tightened in any reasonable cross wise pattern See Table 12 for tightening torques Allow the Loctite Superflex 596 Sealant 24 hours to completely cure before performing the following leak test procedure 4 5 9 24 hours after completion of assembly each water cav...

Page 20: ...nd past the mounting surface of the mounting flange Loctite 262 must be shaken prior to application Loctite 262 may irritate sensitive skin Refer to the product label for proper safety precautions 4 6 5 Place the cylinder and piston assembly with the piston facing down on blocks approxi mately 6 150 mm high The blocks must only contact the cylinder 19 so that the piston 33 will be free to move out...

Page 21: ...he locknuts ONE TURN AT A TIME and in an alternating crosswise pattern until the cylinder is seated firmly against the clamp tubes Torque the locknuts to the appropriate value See Table 5 The locknuts 18 must be tightened gradually to prevent damage to the tensioner components 4 6 19 Connect air supply line 4 6 20 Perform an air test by applying 80 PSIG 5 5 bar to engage the tensioner Shut off the...

Page 22: ...i seizing compound and install the locknuts 18 washers 17 4 8 7 Tighten the locknuts ONE TURN AT A TIME and in an alternating crosswise pattern until the cylinder is seated firmly against the clamp tubes Torque the locknuts to the appropriate value See Table 5 The locknuts 18 must be tightened gradually to prevent damage to the tensioner components 4 8 8 Reinstall the tensioner per 2 0 4 9 Corrosi...

Page 23: ...hole di ameters are shown in Table 8A 31 Reaction Plate Bushing Reaction Holes Maximum wear is 0 031 0 80 mm Wear will be in the form of elonga tion of the holes Original hole di ameters are shown in Table 8A 12 Clamp Tube Reaction Area Maximum wear is 0 015 0 38 mm Wear will be in the form of a notch or step on the side of the tube 9 28 Friction Disc Core and Gear Gear Backlash Maximum allowable ...

Page 24: ...00153x0727 12 18 Locknut 000110x0070 12 000110x0070 12 19 Cylinder 514017 1 514017 1 21 Polypak Seal 000402x0021 2 000402x0021 2 23 Polypak Seal 000402x0022 2 000402x0022 2 24 Warning Decal 203627 1 203627 1 25 Name Plate 308284 1 308284 1 26 Screw 000153x0644 8 000153x0644 8 28 Gear 308216 1 308216 1 29 Wear Spacer N A N A N A N A 30 Reaction Plate Sub assembly N A N A N A N A 32 Decal Plate 3077...

Page 25: ...18 Locknut 000110x0070 12 000110x0070 12 19 Cylinder 514017 1 514017 1 21 Polypak Seal 000402x0021 2 000402x0021 2 23 Polypak Seal 000402x0022 2 000402x0022 2 24 Warning Decal 203627 1 203627 1 25 Name Plate 308284 1 308284 1 26 Screw 000153x0644 8 000153x0644 8 28 Gear 308208 1 308208 1 29 Wear Spacer 308201 02 12 308201 02 12 30 Reaction Plate Sub assembly 514143 02 1 514143 02 1 32 Decal Plate ...

Page 26: ...4 12 000153x0854 12 18 Locknut 000110x0076 12 000110x0076 12 19 Cylinder 514039 1 514039 1 21 Polypak Seal 000402x0023 2 000402x0023 2 23 Polypak Seal 000402x0024 2 000402x0024 2 24 Warning Decal 203627 1 203627 1 25 Name Plate 308284 1 308284 1 26 Screw 000153X0644 8 000153X0644 8 28 Gear 416454 1 416454 1 29 Wear Spacer N A N A N A N A 30 Reaction Plate Sub assembly N A N A N A N A 32 Decal Plat...

Page 27: ...4 12 18 Locknut 000110x0076 12 000110x0076 12 19 Cylinder 514039 1 514039 1 21 Polypak Seal 000402x0023 2 000402x0023 2 23 Polypak Seal 000402x0024 2 000402x0024 2 24 Warning Decal 203627 1 203627 1 25 Name Plate 308284 1 308284 1 26 Screw 000153x0644 8 000153x0644 8 28 Gear 416439 1 416439 1 29 Wear Spacer 308193 02 12 308193 02 12 30 Reaction Plate Sub assembly 514130 02 1 514130 02 1 32 Decal P...

Page 28: ...042 16 18 Locknut 000110x0075 16 000110x0075 16 19 Cylinder 512809 1 512809 1 21 Polypak Seal 000402x0005 2 000402x0005 2 23 Polypak Seal 000402x0006 2 000402x0006 2 24 Warning Decal 203627 1 203627 1 25 Name Plate 307640 1 307640 1 26 Screw 000153x0644 8 000153x0644 8 28 Gear 416445 1 416445 1 29 Wear Spacer 308191 04 16 308191 04 16 30 Reaction Plate Sub assembly 513284 02 1 513284 02 1 32 Decal...

Page 29: ...x0042 16 18 Locknut 000110x0075 16 000110x0075 16 19 Cylinder 512809 1 512809 1 21 Polypak Seal 000402x0005 2 000402x0005 2 23 Polypak Seal 000402x0006 2 000402x0006 2 24 Warning Decal 203627 1 203627 1 25 Name Plate 307640 1 307640 1 26 Screw 000153x0644 8 000153x0644 8 28 Gear 416435 1 416435 1 29 Wear Spacer 308191 04 32 308191 04 32 30 Reaction Plate Sub assembly 513284 02 2 513284 02 2 32 Dec...

Page 30: ...tite Superflex 000153x1071 1 Instruction Sheet 204063 6 Inner Ring 413107 01 10 Outer Ring 413108 01 2 Wear Plate 508459 24WCB Reaction Plate Kit 107727O 90 Locknut 000153x0642 90 Screw 000153x0685 1 Loctite Superflex 000153x1071 1 Instruction Sheet 204063 6 Inner Ring 413107 01 10 Outer Ring 413108 01 2 Wear Plate 508459 36WCB Basic Kit 107662N 216 Screw 000153x0842 216 Locknut 000153x0844 2 Loct...

Page 32: ...ct exists Eaton shall thereupon correct any defect at its option either by repairing any defective part or parts or by making available at Eaton s plant a repaired or replacement part This warranty does not extend to normal wear parts or components of the Product such as friction material and friction surfaces LIMITATION OF WARRANTY THE FOREGOING WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARR...

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