Answers.Body: <p>First off, you should check the instructions to see if you made a mistake before going into some long repair method. Even if you find no mistake, what I would do is disassemble the entire crane assembly and then reassemble it; this would fix problems you may not have noticed. Another thing you could do is remove the actuator and fully extend and retract it a couple of times. If you feel any extra friction while doing this, than the actuator might need lubrication.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-07-17T14:11:47.353Z
Answers.LastActivityDate: 2015-07-17T14:11:47.353Z
Answers.UserDisplayName: CC_22224
Body: <p>I just built a 42006 excavator, and the Linear Actuator jams such that it can't be rotated. I think that the overly sharp angle of the u-joint at the top of the boom is the reason.</p>
  
  <p>Is there a workaround?</p>
  
Tags: <technic>
Title: Linear Actuator of the boom of 42006 jams
UserDisplayName: András
ThreadText: # Linear Actuator of the boom of 42006 jams
  
  (Asked by: username_0 on 2013-12-02)
  
  I just built a 42006 excavator, and the Linear Actuator jams such that it can't be rotated. I think that the overly sharp angle of the u-joint at the top of the boom is the reason.
  
  Is there a workaround?
  
  **Tags:** technic
  
  
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  ## 1 answers
  
  ### Answer by username_1 on 2015-07-17. Score: 2 | Accepted answer
  
  First off, you should check the instructions to see if you made a mistake before going into some long repair method. Even if you find no mistake, what I would do is disassemble the entire crane assembly and then reassemble it; this would fix problems you may not have noticed. Another thing you could do is remove the actuator and fully extend and retract it a couple of times. If you feel any extra friction while doing this, than the actuator might need lubrication.
  
  
  ---
  
  