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Installation & Operating Manual /DISC-O-FLEX/RLM,RLMK

 

RATHI TRANSPOWER  PVT.LTD. Gaia Apex,S No 33/2D,Viman Nagar

                                                                       R-II-D-03/02-09/20 

                                                                                 

 

Pune, 411014                                                                                                                   

 

Page 2

 of  15

 

GO TO INDEX

 

1.

 

Introduction & General Guidelines 

 

 

RLM/RLMK type disc coupling are complied with ATEX (explosion protection) to transmit power 
and torque between drive and driven shaft using flexible disc element blades to accommodate 
misalignments between the equipments. 

 

This manual will help you to install and maintain disc coupling before installing/disassembling of 
coupling.  It  is  advisable  to  read  the  manual  carefully  before  starting  the  work.  These  special 
designs are always provided with general assembly drawing which provides detail information of 
the design and connected equipments. 

 

Symbol description : 

Caution person may get injured 

Damage the product 

Pay attention 

Potentially explosive warning 

2.

 

Before installation information

 

 

RLM/RLMK couplings are delivered  by RTPL with  element  blade as assembled  condition which 
consists components from 3 to 8 as shown in fig. 2.1, it is recommended not to disassemble it 
except case of replacement for blade assembly.

 

 

 

 

 

 

 

 

 

 

        Fig. 1

 

PART LIST 

 

 

Inspect coupling assembly for visible damage, if you found contact RATHI. 

 

Remove  red  marked  bolts  &  bushes,  which  are  provided  to  avoid  damaging  of  blade  during 
transportation. 
 
 

Sr.No  Component  

Qty. 

Coupling  Bolt (DE) 

06 

Small sleeve 

06 

Driving Hub 

01 

Element Blade Assembly 

02 

Center Spacer 

01 

Cleveloc/Nylock Nut 

12 

Gagging Screw 

06 

Balancing bush 

06 

Driven Hub 

01 

10 

Large sleeve 

06 

11 

Coupling  Bolt (NDE) 

06 

Summary of Contents for DISC-O-FLEX RLM

Page 1: ...RATHI TRANSPOWER PVT LTD Gaia Apex S No 33 2D Viman Nagar R II D 03 02 09 20 Pune 411014 INDIA Installation Operating Manual IOM DISC O FLEX Coupling RLM RLMK Series...

Page 2: ...neral Guidelines 02 2 Before installation information 02 3 Installation Information 03 3 1 Hub Mounting 03 3 2 Shaft Alignment 05 3 3 Final Assembly 06 4 Disassembly Replacement 07 5 Safety General Ha...

Page 3: ...provides detail information of the design and connected equipments Symbol description Caution person may get injured Damage the product Pay attention Potentially explosive warning 2 Before installatio...

Page 4: ...er Finish bore strictly done within specified limit H7 Js9 Keyway must be done between two adjacent holes Provide set screw at distance L L LTB 2 3 2 Hub Mounting 3 2 1 Clean protective coatings lubri...

Page 5: ...shaft Immediately slide expanded hub over the shaft up to desired position Fig 3 Tighten the set screw with torque wrench 3 2 5 Taper Bore Fig 5 Slid the hub over the shaft without inserting key up to...

Page 6: ...f maximum misalignment Refer Table 3 Table 2 Method of misalignment Method Parallel Radial Angular 1 Using dial gauge Using dial gauge Clamp dial gauge on driven hub Note the reading at each quarter r...

Page 7: ...4 2 RLMK The large holes of Hub II should be in line with the small holes of Hub I Insert coupling bolts from driven hub side through small hole and small length sleeves from driving side Insert coup...

Page 8: ...hat the blades should not be under stresses due to external loads such as spacer weight Dismantle components by loosening coupling bolts 1 from hub Remove cleveloc nuts 7 bushing and blade pack 4 4 1...

Page 9: ...Check all the bolts are tightened as per torque specified in the manual or as specified in the GA drawing The supplied coupling may have to rotate at high speed it is most important to guard the area...

Page 10: ...r S D like distortion waviness is not detrimental to the operation of the unit Check the flexible elements by visual inspection for any signs of fatigue failure or cracking to the washer anchoring poi...

Page 11: ...Installation Operating Manual DISC O FLEX RLM RLMK RATHI TRANSPOWER PVT LTD Gaia Apex S No 33 2D Viman Nagar R II D 03 02 09 20 Pune 411014 Page 10 of 15 Product Performance datasheet PPDS GO TO INDEX...

Page 12: ...Installation Operating Manual DISC O FLEX RLM RLMK RATHI TRANSPOWER PVT LTD Gaia Apex S No 33 2D Viman Nagar R II D 03 02 09 20 Pune 411014 Page 11 of 15 GO TO INDEX...

Page 13: ...ture shaft bearing failure Excessive misalignments Check for loose base plate bolts Component thermal expansion Change in the assembly gap of the coupling Replace the Blades 2 Fatigue of Blades Torsio...

Page 14: ...ATEX marking for REM coupling will be given on outer surface or front side Fig 8 Element blade assembly will not be marked Example Fig 8 Marking example ATEX Punching sample 1 RATHI DISC O FLEX 120 R...

Page 15: ...Installation Operating Manual DISC O FLEX RLM RLMK RATHI TRANSPOWER PVT LTD Gaia Apex S No 33 2D Viman Nagar R II D 03 02 09 20 Pune 411014 Page 14 of 15 GO TO INDEX 10 Declaration of Conformity...

Page 16: ...Installation Operating Manual DISC O FLEX RLM RLMK RATHI TRANSPOWER PVT LTD Gaia Apex S No 33 2D Viman Nagar R II D 03 02 09 20 Pune 411014 Page 15 of 15 GO TO INDEX...

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