Change the bending wedge on X1

Change the bending wedge on X1

Remedy

1. Fully release both spring pressures!
2. Remove the upper rollformer shaft / bending wedge unit.
    
3. Replace the bending wedge, taking care not to accidentally drop the roller onto the carbide wedge! Place a rag in between.
    
4. Replace the support bearings below the lower rollformer roller first if damaged!
   1. Important: To the Left and right of both bearings a shim of ø 8/14 x 0.5 mm is required, to avoid that the outer rings of the bearings from touching the hardened support laterally and becoming hot!
       
5. Check that the small shaft (in the needle bearings of the lower rollformer shaft) in the right side plate is well fixed or not.
    
6. Mount the lower rollformer roller completely and measure the clearance between the roller and the bearing: 0.02 – 0.05 mm.

• Important: If no clearance can be measured, remove the hardened support with bearings, and slightly grind the lower side until the above mentioned clearance of 0.02 – 0.05 mm is achieved.
   

6. Reassemble the upper rollformer shaft / bending wedge unit (use center holes only), and move the bending wedge up approximately two turns. Do not allow the wedge to touch the lower shaft after closing the rollformer! Don’t tighten the spring pressure yet!
    
7. Close the rollformer, and hold a 0.10 mm feeler gauge on each side between the two rollers. Close the rollformer slowly step by step. Make sure that the bending wedge does not touch the lower roller!
    
8. Reset the height of the top roller until you can easily move out both feeler gauges.
9. Open the rollformer and measure the gap between the bending wedge and the roller. It should be at least 0.3 mm.
    
10. Check whether that there is clearance between the lower roller and the bending wedge.
     
11. Close the rollformer and reset the spring pressure and set the roller clearance.
     

• Now the rollformer is ready for the first rollforming tests.