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EATON  

Torque Limiting Coupling Installation, Operation and Maintenance Manual  E-MEQD-II002-E  September 2015

3

Table of contents

Section  Description 

Page no

1.0 Introduction 

6

1.1 Description 

6

1.2 

How it works 

6

1.3 

TLC adjustment 

7

2.0 Installation 

7

2.1 

Mounting arrangements 

7

2.2 

Mounting considerations 

7

2.3 

Mounting spider and drum hub 

8

2.4 

Shaft alignment 

9

2.5 

Axial locking device adjustment 

10

2.6 

Installation of single wide element and drum 

11

2.7 

Air control system 

11

2.8 

Electrical controls 

11

3.0 Operation 

12

3.1 

Torque, RPM and Pressure Limits 

12

3.2 

Control component adjustment 

12

4.0 Maintenance 

12

4.1 

Periodic inspection 

12

4.2 

Removal of element assembly and drum 

14

4.3 

Removal of spider and drum hub 

14

4.4 

Disassembly of the element 

14 

4.5 

Friction shoe assembly replacement 

14

4.6 

Assembly of the element 

15

5.0 

Spare parts storage 

15

5.1 

Element assemblies 

15

5.2 Drums 

15

5.3 

Air actuating tubes 

15

6.0 

Ordering information/technical assistance 

15

6.1 

Equipment reference 

15

7.1 

Parts breakdown of TLC element assemblies figures 1 and 10 

16

8.1 

Parts breakdown of TLC hub, spider, drum, axial locking assy. and rotorseal figure 2 

16

9.1 

(Standard) Torque bar kit 

17

9.2 

(Standard) Friction shoe assembly, torque bar and release spring kit 

17

10.1 

Description axial locking assembly 

17

Summary of Contents for AirFlex TLC 5004

Page 1: ...TLC 5004 Installation Operation and Maintenance Manual Airflex Torque Limiting Coupling ...

Page 2: ...s information faulty Installation Operation or Maintenance may result in personal injury or equipment damage Caution Use Only Genuine Airflex 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 Eaton warranty For optimum ...

Page 3: ...re Limits 12 3 2 Control component adjustment 12 4 0 Maintenance 12 4 1 Periodic inspection 12 4 2 Removal of element assembly and drum 14 4 3 Removal of spider and drum hub 14 4 4 Disassembly of the element 14 4 5 Friction shoe assembly replacement 14 4 6 Assembly of the element 15 5 0 Spare parts storage 15 5 1 Element assemblies 15 5 2 Drums 15 5 3 Air actuating tubes 15 6 0 Ordering informatio...

Page 4: ...upling 1 2 4 5 6 8 10 9 7 3 See Figure 10 11 13 12 15 14 Figure 1 Figure 2 Item Description 1 Rim 2 Tube 3 Snap rings 4 QRV 5 Air tube Item Description 6 Rubber washer 7 Friction shoe assembly 8 Side plate 2 required 9 Torque bar 10 Release spring Item Description 11 Hub 12 Spider 13 Drum 14 Axial locking assembly 15 Rotorseal ...

Page 5: ...Torque Limiting Coupling Rubber backed washer QRV Friction shoe assembly Torque bar Drum surface Friction shoe assembly retracted Release spring Figure 3 Figure 4 Rubber backed washer QRV Contact with drum Release spring Compressed Drum surface Friction Material in contact with the drum Drum surface Torque bar ...

Page 6: ...sly by releasing the applied air pressure Torque Limiting Coupling 1 1 2 All Airflex TLC elements are supplied with long wearing NON ASBESTOS high coefficient friction material The material is capable of withstanding the energy input that is developed during the short overload condition when slippage occurs between the driving and driven shaft before the automatic disengagement of the element s by...

Page 7: ... TLC applications are available in a single wide mounting configuration See Figure 5 The TLC configuration is determined by the motor horsepower nominal full motor RPM the allowable motor overload service factor for mill start up and operation All TLC s are supplied with axial locking devices 2 2 Mounting considerations 2 2 1 Shaft alignment must be within the tolerances indicated in the Alignment...

Page 8: ...0 SW76TLC2000 ELEM SPDR RIM Size 7 8 9NC 2 1 8NC 2 1 1 4 7NC 2 1 1 4 7NC 2 1 1 4 7NC 2 Quantity 32 36 40 48 48 Torque Dry 125 169 L 190 258 L 380 515 L 380 515 L 380 515 L DRUM HUB Size 1 8NC 2 1 1 2 6NC 2 1 1 2 6NC 2 1 1 2 6NC 2 1 1 2 6NC 2 Quantity 20 20 30 42 42 Torque Lubed 510 691 L 650 881 L 650 881 L 650 881 L 650 881 L SPDR to LCKG Assy Size 3 4 10NC 2 3 4 10NC 2 1 1 2 6NC 2 1 1 2 6NC 2 1 ...

Page 9: ...nion back to the motor 2 4 2 Fabricate a rigid bracket for supporting a dial indicator and attach to the spider See Figure 6 2 4 3 Thoroughly clean the flange O D and the face of the drum hub where alignment readings are to be taken 2 4 4 Rotate the spider and take parallel alignment readings off the drum hub flange O D If both shafts can be rotated together the alignment readings are less influen...

Page 10: ...ng 8 and adapter plate 1 or 9 2 5 3 2 Remove the snap ring 2 from the bearing housing 2 5 3 3 After ensuring the shaft 3 is clean and free of foreign matter nicks or burrs in the area between the two bearing housings slide the bearing housing assembly toward the opposite bearing housing assembly to expose the bearing spacer assembly 10 11 17 2 5 3 4 Remove the bearing locknut and lockwasher 13 14 ...

Page 11: ...motor is on magnetic center Attach the axial locking device mounting plate to the spider with the appropriate screws and lock washers Tighten the screws Caution Do not attempt to pull the motor shaft back onto magnetic center by tightening the axial locking device mounting screws To do so will damage the axial locking device 2 7 Air control system 2 7 1 The typical TLC air control system s operati...

Page 12: ...e purpose of this pressure switch is to prevent starting the motor with the TLC disengaged 3 2 3 Set the pressure regulator to the specified minimum pressure for the application This is the nominal air pressure required for operation of the TLC to start the mill 3 2 4 Check all other interlocks that affect the starting of the mill and remove any jumpers that may have been installed 4 0 Maintenance...

Page 13: ...iction lining wear Tapered wear across the friction surface typically indicates a worn drum and or misalignment If two or more adjacent shoes are worn on one end only the air actuating tube has most likely developed a ply separation at that location Torque Limiting Coupling 4 1 2 5 Backing plate wear Wear on the ends of the backing plates from bearing against the side plates is indicative of misal...

Page 14: ... 4 3 2 Puller holes are provided for removal if these must be removed It will require heating of the spider and drum hub along with the pressure supplied by a properly located puller attached to the component to be removed When heating use torches with rosebud tips Heat the component uniformly to prevent hot spots and do not exceed 275 F 135 C Torque Limiting Coupling 4 4 Disassembly of the elemen...

Page 15: ...ll four equally spaced screws and nuts through the rim and side plate to keep some tension on the side plate throughout this step 4 6 8 Attach the side plate to the rim with cap screws and lockwashers making sure all of the torque bars are seated in their side plate holes 4 6 9 Note the orientation of the air connections and install the through bolts and locknuts where applicable 4 6 10 Re install...

Page 16: ... 000190X0015 4 4 QRV 146506BE 4 146506BE 4 146506BE 4 146506BE 4 146506BE 4 5 Air tube 417178 09 4 412178 18 4 412178 04 4 412178 04 4 412178 04 4 6 Rubber washer 412324 08 4 412324 09 4 412324 09 4 412324 09 4 412324 09 4 7 Friction shoe assembly 515759 18 515762 20 515811 22 515815 25 515808 25 8 Side plate 417477 2 417507 2 417479 2 515816 2 515816 2 9 Torque bar 308647 18 308648 20 308648 22 3...

Page 17: ...plate 414725 04 1 414725 11 1 414725 13 1 414725 15 1 414725 15 1 10 Bearing 000136X0123 2 000136X0123 2 000136X0123 2 000136X0123 2 000136X0123 2 11 Spacer 000153X0874 8 000153X0874 8 000153X0874 8 000153X0874 8 000153X0874 8 12 External snap ring 000139X0037 2 000139X0037 2 000139X0037 2 000139X0037 2 000139X0037 2 13 Bearing locknut 000114X0007 2 000114X0007 2 000114X0007 2 000114X0007 2 000114...

Page 18: ...EATON Torque Limiting Coupling Installation Operation and Maintenance Manual E MEQD II002 E September 2015 18 Revisions ...

Page 19: ...EATON Torque Limiting Coupling Installation Operation and Maintenance Manual E MEQD II002 E September 2015 19 Notes ...

Page 20: ...n Hydraulics Group USA Airflex Products 9919 Clinton Road Cleveland Ohio 44144 USA Tel 216 281 2211 Fax 216 281 3890 www eaton com airflex Eaton Eaton Hydraulics Group China Airflex Products 281 Fa Sai Road WaiGaoQiao Free Trade Zone Shanghai 200131 China Tel 86 21 5048 4811 Fax 86 21 5048 4911 ...

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