Mayr EAS-NC Installation And Operational Instructions Download Page 11

Installation and Operational Instructions for

 

EAS

®

-NC Clutches  Type 45_._ _ _._

 

Sizes 02 and 03 

(B.4.8.2.1.EN)

 

29/08/2013 TK/GC/NU/SU 

Chr. Mayr GmbH + Co.

 

KG

 

 

Eichenstraße 1, D-87665 Mauerstetten, Germany

 

 

Tel.: +49 8341 804-0, Fax: +49 8341 804-421

 

Page 11 of 11 

www.mayr.com

E-Mail

[email protected]

 

 

Malfunctions / Breakdowns Type 45_._ _ _._ 

Result of 

Malfunction 

Possible Causes 

Solutions 

Premature  

clutch  

release 

Incorrect torque adjustment 

1) 

Set the system out of operation 

2) 

Check the torque adjustment 

3) 

Secure the adjusting nut 

4) 

If the cause of malfunction cannot be found, the clutch must be 
inspected at the place of manufacture 

Adjustment nut has changed position 

Worn clutch 

Clutch does not  

release  

on overload 

Incorrect torque adjustment 

1) 

Set the system out of operation 

2) 

Check whether foreign bodies influence the disengagement 
mechanism function 

3) 

Check the torque adjustment 

4) 

Secure the adjusting nut 

5) 

If the cause of malfunction cannot be found, the clutch must be 
inspected at the place of manufacture 

Adjustment nut has changed position 

Worn clutch 

Running noises in 

normal operation 

Insufficient clutch securement 

1) 

Set the system out of operation 

2) 

Check the clutch securement 

3) 

Check the screw tightening torques 

4) 

Check the torque adjustment and that the adjusting nut sits 
securely 

5) 

If the cause of malfunction cannot be found, the clutch must be 
inspected at the place of manufacture 

Loosened screws 

Loosened adjusting nut 

 
 

Malfunctions / Breakdowns Type 453._ _ _.0 

Result of 

Malfunction 

Possible Causes 

Solutions 

Steel bellows 

breakage 

Incorrect alignment 

1) 

Set the system out of operation 

2) 

Replace the entire clutch 

3) 

Check the alignment 

Steel bellows have already been 

damaged in transport or during 

installation 

1) 

Set the system out of operation 

2) 

Replace the entire clutch 

3) 

Check the alignment 

Operating parameters are not 

appropriate for the clutch performance 

1) 

Set the system out of operation 

2) 

Check the operating parameters and select a suitable clutch 
(observe installation space) 

3) 

Install a new clutch 

4) 

Check the alignment 

Steel bellows is energised in natural 

frequency; resonance 

1) 

Set the system out of operation 

2) 

Re-align the line characteristics 

3) 

Replace the entire clutch 

4) 

Check the alignment 

Changes in running 

noise 

and / or 

vibration 

occurrence 

Screws are loosened, 

resonances, Insufficient clutch 

securement 

1) 

Set the system out of operation 

2) 

Check the screw tightening torques 

3) 

Check the line characteristics 

4) 

Check the coupling parts and replace if damaged 

 

 

Please Observe!

 

mayr

 

®

 will take no responsibility or guarantee for replacement parts and accessories which have not been delivered by 

mayr

 

®

, or for damage resulting from the use of these products. 

 
 

Summary of Contents for EAS-NC

Page 1: ...rman notation decimal points in this document are represented with a comma e g 0 5 instead of 0 5 Safety Regulations These Installation and Operational Instructions I O are part of the clutch delivery...

Page 2: ...ayr GmbH Co KG Eichenstra e 1 D 87665 Mauerstetten Germany Tel 49 8341 804 0 Fax 49 8341 804 421 Page 2 of 11 www mayr com E Mail info mayr com 11 10 10 3 3 9 9 7 1 1 8 8 7 2 2 23 23 4 5 6 6 19 20 16...

Page 3: ...sign The EAS NC clutch is designed as a mechanical overload clutch according to the ball detent principle State of Delivery The clutch is manufacturer assembled and set to the torque stipulated in the...

Page 4: ...ype 45_ _1_ _ mm Type 45_ _2_ _ mm 03 6 12 6 11 0 8 20 C to 80 C 02 8 15 8 16 1 0 20 C to 80 C Table 3 Size Max permitted bearing loads Screw tightening torques Axial forces N Radial forces N Transver...

Page 5: ...haft Fig 4 No appreciable axial forces see Table 3 should be transferred from the output element onto the clutch pressure flange 2 The EAS NC with a long protruding hub Type 450 _ _ _ 1 Fig 2a is reco...

Page 6: ..._ _ _ 0 first one cone bushing is completely tightened e g Items 13 22 then the other steel bellows side Items 20 21 Fig 5 Please also ensure during installation of Type 453 _ _ _ 0 that no axial pres...

Page 7: ...ent of the maximum value must not exceed 100 The permitted misalignment values given in Table 4 refer to coupling operation at nominal torque an ambient temperature of 30 C and an operating speed of 1...

Page 8: ...n the operating range in a clockwise direction reduces the torque Turning it anti clockwise causes an increase in torque You should be facing the adjusting nut 6 as shown in Figs 11 and 12 Fig 10 Adju...

Page 9: ...45 6 5 6 55 6 6 6 65 6 7 6 75 6 8 6 85 0 65 0 7 0 75 0 8 0 85 0 9 0 95 1 05 1 1 1 15 1 2 1 25 1 3 5 65 5 7 5 75 5 8 5 85 5 9 5 95 6 6 05 2 2 5 3 3 5 4 4 5 5 16 18 20 22 24 26 4 5 6 7 8 9 10 20 22 24 2...

Page 10: ...aintained Inspection of the set torque Clutch release inspection Bearing or bearing pre tension inspection Re greasing of the transmission geometries balls recesses and sealing elements Clutch re grea...

Page 11: ...tment and that the adjusting nut sits securely 5 If the cause of malfunction cannot be found the clutch must be inspected at the place of manufacture Loosened screws Loosened adjusting nut Malfunction...

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