<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>

CC BY-SA 3.0
2015-07-17T14:11:47.353Z
2015-07-17T14:11:47.353Z
CC_22224
<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>

<technic>
Linear Actuator of the boom of 42006 jams
András
# 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.


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