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B06 20 243 E-EN 

page 15 / 23 

09.2010 

Installation and Maintenance Manual  

CB8-E 

 

 

      

 

 

Fig. 9: Checking the reserve stroke directly at the square part 

 

4.11  Adjustment of brake torque  

The clamping force between the linings and the 
disc and so the brake torque is created by a 
helical compression spring.  
The adjustment of the brake torque is done by 
increasing or decreasing the spring preload 
with the help of the adjustable spring chamber 
(see figure 10 and figure 11). 

Ex works the clamping force is already adjusted 
to the brake torque the customer has specified 
in his order. If there is no specification the 
brake is adjusted to the minimum clamping 
force. In this case the brake torque has to be 
adjusted at site. 

The adjustment of the brake torque is carried out as follows. 

1. 

Calculate the braking torque M

Br

 respectively the clamping force F

C

 (see figure 3 for dimensions) 

 

100

-

M4

-

CB8

 

for

   

mm

 

60

 

-

 

D

  

50

-

M3

-

CB8

 

for

   

mm

 

46

 

-

 

D

  

 

D

    

          

0.4

 

 

  

          

D

M

   

 

F

   

          

D

F

 

 

M

2

2

1

1

Br

C

1

C

Br

 

2. 

Ascertain the required dimension x for the overhang of the adjustable spring chamber out of the 

housing acc. to figure 11. 

3. 

Turn around the spring chamber (figure 10 and figure 11) with a hexagon key Ø5 mm till the 

ascertained overhang is reached. 

cover with 
sealing 

control 
window 

square 
part 

adjustable 
spring 
chamber 

Fig. 10: Adjustment of brake torque 

Summary of Contents for CB8-E Series

Page 1: ...D 35708 Haiger Germany Tel 49 2773 94000 Fax 49 2773 9400 10 e mail info sibre de www sibre de D Daten dat_word sibre CB8 CB8 E 100 09 2010 doc B06 20 243 E EN page 1 23 09 2010 Installation and Main...

Page 2: ...Technical Data 5 3 1 Description 5 3 2 Dimensions 8 4 Installation 9 4 1 Scope of supply 9 4 2 Transport 9 4 3 To be noted before installation 9 4 4 Lifting and Handling 9 4 5 Cleaning the brake disc...

Page 3: ...n features 2 Safety Directions 2 1 Safety Directions The brake has been built to the state of the art and is supplied safe for operation Unauthorized modifications impairing operational safety are not...

Page 4: ...or facilities the manufacturers of the latter are under an obligation to incorporate the regulations directions and descriptions contained in these operating instructions into their own operating ins...

Page 5: ...ake Any other use of the brake should be avoided CB8 E brakes are suitable for horizontal and vertical brake discs under any angular displacement The CB8 E is designed as a caliper brake which is acti...

Page 6: ...d electro hydraulically The release force is transmitted to the square part by the release lever and the stud Readjusting unit The readjusting unit is used for compensation of lining wear however its...

Page 7: ...cover The protection cover avoids the fouling of the release mechanism and guarantees the operational reliability of the brake even under rough environmental conditions Removable caps allow the fast...

Page 8: ...adjustable from to 200 250 315 400 500 CB8 M3 50 80 300 110 400 140 530 180 700 n a CB8 M4 100 n a 350 680 460 910 620 1220 800 1580 Fig 3 Dimensions of CB8 E Options protective cover manual release l...

Page 9: ...ed before installation During installation comply with the safety directions in 2 All work must be performed with care and with a focus on the safety aspect WARNING Non compliance with these direction...

Page 10: ...onal injury follow the manufacturer s instructions and see 4 5 4 7 Handling of brake linings The brake linings are an essential part of the brake system They should be handled carefully to avoid damag...

Page 11: ...of brake linings for CB8 4 8 Mounting of the brake initial setup on site Ex works the gap between the lining surfaces is adjusted to the disc thickness the customer has specified and fixed with a woo...

Page 12: ...ion is created by the clean dry lubricant free surface and by the accurate mounting of the bolts 5 Connect the thrustor with the power supply CAUTION Check the indications on the thrustor name plate b...

Page 13: ...tate the eccentric shaft clockwise until the indexed position is reached figure 7b The brake is released now PLEASE NOTE For the handling of the manual release a socket key wrench size 19 is recommend...

Page 14: ...brake To check the reserve stroke remove the cap at the top of the protection cover Push in the piston rod of the thrustor manually against block The reserve stroke can be measured between the roller...

Page 15: ...ed in his order If there is no specification the brake is adjusted to the minimum clamping force In this case the brake torque has to be adjusted at site The adjustment of the brake torque is carried...

Page 16: ...justment of the reserve stroke can be done by successive opening and closing the brake several times approximately 40 50 cycles Thus the readjusting unit sets the brake in working position When the cl...

Page 17: ...if the brake is open The sensor is activated directly by the release lever The sensor type normally open ensures that in case of an electronic or sensor defect there is no signal for brake open 4 13...

Page 18: ...smounting of the brake CAUTION See 4 7 for proper handling of brake linings To replace the linings follow the below mentioned steps 1 Ensure that the whole drive system is secured against unintentiona...

Page 19: ...ngs can be removed upwards downwards or in front direction figure 13 Fig 13 Replacing the brake linings 8 Put new linings on the brake shoes and fix them with bolts and locking washers Position of bol...

Page 20: ...rve stroke CAUTION An insufficient or not existing reserve stroke may lead to a failure of the brake 10 Mount cover and sealing on topside of housing 11 Bed in the new linings The brake is ready for o...

Page 21: ...late e g 131904 Quantity position and description e g 2 pcs pos 2 brake lining 10 0000 1816 Pos Quantity Description Article No CB8 E 50 CB8 E 100 1 2 brake shoe complete set 10 0000 2006 10 0000 1993...

Page 22: ...c braking torque not adjusted or adjusted too low adjust braking torque according to the OM reserve stroke not adjusted adjust reserve stroke according to the OM and check during operation contact pat...

Page 23: ...linings are made of a steel back plate and the lining material which is either made of an organic compound or of sinter material Each type is asbestos free and free of lead The brake linings can be tr...

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