Answers.Body: <p>A linear actuator cannot be operated both ways, and cannot replace a strut with a spring. It can only be driven through the gearing input to extend or retract.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2023-04-27T16:26:16.327Z
Answers.Text: I wasn't planning on using actuators to replace the damper/strut. But thanks for the information about actuators
Answers.UserDisplayName: maxos79 Mouse
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2023-04-27T19:13:36.833Z
Answers.Text: Is there a set number of rotations the lower gear goes through to fully extend/retract the actuators do you know?
Answers.UserDisplayName: maxos79 Mouse
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2023-05-03T02:42:05.130Z
Answers.Text: 5.2 rotations for the small ones
Answers.UserDisplayName: LKBricks
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2023-05-04T01:02:20.327Z
Answers.Text: They all seem to be 5.2 rotations per stud, from memory I believe it's only .5 of a rotation to lock the differential,if in correct please feel free to correct. So I've got to transfer. 5 a rotation  to maximum of 41.6 rotations
Answers.UserDisplayName: maxos79 Mouse
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2023-04-27T10:14:01.690Z
Answers.LastActivityDate: 2023-04-27T10:14:01.690Z
Answers.UserDisplayName: Phil B.
Body: <p>Has anyone looked at a mod to lower the suspension on the LEGO 42129 4x4 Mercedes-Benz trail truck when the differential lock activates.</p>
  <p>I was thinking about a few linear Actuators but never had a set with them in so I also wondered how much power they can take and apply?</p>
  <p>Can linear actuator be operated from both ends, i.e. if you push down on the extended rod, will the lower shaft rotate or is power transfer just one way?</p>
  <p>I hope some can help, even if it's just with info</p>
  
Tags: <technic><powered-up><remote-control><set-modification><control-plus>
Title: Lego 42129 automatic suspension lift
UserDisplayName: maxos79 Mouse
ThreadText: # Lego 42129 automatic suspension lift
  
  (Asked by: username_0 on 2023-04-26)
  
  Has anyone looked at a mod to lower the suspension on the LEGO 42129 4x4 Mercedes-Benz trail truck when the differential lock activates.
  
  I was thinking about a few linear Actuators but never had a set with them in so I also wondered how much power they can take and apply?
  
  Can linear actuator be operated from both ends, i.e. if you push down on the extended rod, will the lower shaft rotate or is power transfer just one way?
  
  I hope some can help, even if it's just with info
  
  **Tags:** technic, powered-up, remote-control, set-modification, control-plus
  
  
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  ## 1 answers
  
  ### Answer by username_1 on 2023-04-27. Score: 1
  
  A linear actuator cannot be operated both ways, and cannot replace a strut with a spring. It can only be driven through the gearing input to extend or retract.
  
  > **Comments:**
  > **username_0**: I wasn't planning on using actuators to replace the damper/strut. But thanks for the information about actuators  
  > **username_0**: Is there a set number of rotations the lower gear goes through to fully extend/retract the actuators do you know?  
  > **username_2**: 5.2 rotations for the small ones  
  > **username_0**: They all seem to be 5.2 rotations per stud, from memory I believe it's only .5 of a rotation to lock the differential,if in correct please feel free to correct. So I've got to transfer. 5 a rotation  to maximum of 41.6 rotations  
  
  ---
  
  