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Tightening sequence article

 

Step 1:

  •  Lubricate the bolts, nuts and nut facings 
  • Install gasket, bolts and nuts. Be sure gasket is properly centered 
  • Hand tighten the bolts and nuts 
  • Starting at the #1 bolt, follow a cross-over or star bolt tightening pattern 
  • Tighten to 30% of final torque.

Step 2:

 

  • Start at the #1 bolt.
  • Follow the same star bolt tightening sequence as  in step 1. 
  • Tighten to 60% of final torque...

Step 3:

 

•        Start at the #1 bolt.

•        Follow the same star bolt tightening sequence as  in step 1.

     •        Tighten to 100% of final torque...

Step 4:

 

  • Start at the #1 bolt.
  • Follow a circular bolt tightening pattern.
  • Tighten to 100% of final torque..

Step 5:

 

Repeat step 4, as many times as required until equilibrium is achieved, starting over at the #1 bolt each time.

Finally:

 

Retorque 24 to 72 hours after installation following a circular bolt tightening pattern at 100% of torque.

   

 




ข่าว News Update

VDO สาธิตการใช้งานเครื่อง PCR-1X article
Hydraulic Torque Wrench article
Model:PTC-4X article
Model:PCR-1X article
Model:C-10 article
Model:PTC-P article



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