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dr_gn.
Thank you for that. I will have a look start of next week when the boss is back at work - she hasn’t yet noticed the big red beast hiding in the corner of the spare bedroom!!!
Someone else has had a similar problem & he reckons that this piece is the problem.
Page 105 in book 1!!!!!
He seems to think that the location for the pin & gear is wrong in the instructions. However I have no idea & I can’t find anything anywhere too indicate if the manual is right or wrong.
It is a great model which is why I want too get it working properly.
Thank you for that. I will have a look start of next week when the boss is back at work - she hasn’t yet noticed the big red beast hiding in the corner of the spare bedroom!!!
Someone else has had a similar problem & he reckons that this piece is the problem.
Page 105 in book 1!!!!!
He seems to think that the location for the pin & gear is wrong in the instructions. However I have no idea & I can’t find anything anywhere too indicate if the manual is right or wrong.
It is a great model which is why I want too get it working properly.
All that gear does is slew the crane clockwise or anticlockwise - nothing to do with any other issue. There's only one motor, and it's located in the upper section, so if there's no drive down through the central shaft nothing on the lower chassis section will work. That's why I believe something in the upper gearbox that I highlighted is wrong - depending on the horizontal function switch position, it diverts drive to the lower chassis *and* provides drive to both pairs of upper chassis functions. One set on these on yours isn't getting drive, nor is the lower chassis drive. Since all the upper functions work in one direction, that's pretty much guaranteed to be the issue.
You can easily remove the upper body panels and cab, and start dismantling the rear section to check. Chances are the rest of the build is fine.
I don't think the instructions are wrong.
You can easily remove the upper body panels and cab, and start dismantling the rear section to check. Chances are the rest of the build is fine.
I don't think the instructions are wrong.
Baffled by Defender!
During the build process (I’m nearly at the end of bag 3) I checked everything (including the uj’s), and all was working fine - no clicks, and pistons moved up and down. But now they don’t (and I do get a click, but am certain the uj’s are in correctly).
Any ideas? It’s just for static display, so no biggie, but annoying nonetheless!
(I should add, the upper and lower shafts connected the UJ’s don’t rotate at all)
During the build process (I’m nearly at the end of bag 3) I checked everything (including the uj’s), and all was working fine - no clicks, and pistons moved up and down. But now they don’t (and I do get a click, but am certain the uj’s are in correctly).
Any ideas? It’s just for static display, so no biggie, but annoying nonetheless!
(I should add, the upper and lower shafts connected the UJ’s don’t rotate at all)
Edited by ChevronB19 on Saturday 16th January 17:05
ChevronB19 said:
Baffled by Defender!
During the build process (I’m nearly at the end of bag 3) I checked everything (including the uj’s), and all was working fine - no clicks, and pistons moved up and down. But now they don’t (and I do get a click, but am certain the uj’s are in correctly).
Any ideas? It’s just for static display, so no biggie, but annoying nonetheless!
(I should add, the upper and lower shafts connected the UJ’s don’t rotate at all)
Checkout your symptoms at https://racingbrick.com/2020/04/lego-technic-42110...During the build process (I’m nearly at the end of bag 3) I checked everything (including the uj’s), and all was working fine - no clicks, and pistons moved up and down. But now they don’t (and I do get a click, but am certain the uj’s are in correctly).
Any ideas? It’s just for static display, so no biggie, but annoying nonetheless!
(I should add, the upper and lower shafts connected the UJ’s don’t rotate at all)
Edited by ChevronB19 on Saturday 16th January 17:05
R5_BOY said:
Dashnine said:
Step 104-106, wrong attachment points used - see the link in a few posts above or is that just boring?
Thanks for the advice I’ll take a look , sorry I’m not quite sure what you meant by the last part ? Dashnine said:
I was just wondering when there’s a link there to help find errors why it wouldn’t get used. Perhaps looking up a solution on a website isn’t seen as the done thing in Lego, cheating almost?
Completely missed the link my error I should learn to read these threads properly. Appreciate it though, all working perfectly now! Really enjoyed the build 
Stripped the rough terrain back to the end of book 1.
One question - at what stage is it possible to check if the outriggers work correctly? Don’t want to get to the end & find that they still don’t work.
TIA.
Also thinking about taking the whole thing too pieces, right back to the start. Thoughts on that idea?
One question - at what stage is it possible to check if the outriggers work correctly? Don’t want to get to the end & find that they still don’t work.
TIA.
Also thinking about taking the whole thing too pieces, right back to the start. Thoughts on that idea?
Edited by The Brummie on Monday 18th January 11:51
dr_gn said:
I think your problem is with this part of the gearbox:
The fact that all the jib functions operate one way, but not the other means that only one side of this array of gears is getting power:
The grey clutches select up/down, in/out or whatever, but if only one half of the red gears are powered, the functions will only work one way.
The other thing about the part of the gearbox in 703 is that it switches power from upper to lower chassis functions.
If something is wrong in that specific part of the gearbox, you could get most of the Issues you mention. If you turn the top sideways 90 degrees and look under the rear of it, the gears should look like this, so maybe worth a check:
By the way, regarding the outriggers not working when you manually turn the input drive - they are very low geared so it would take a lot of turns to get them to start moving.
That’s about all I can offer, but hope you sort it - it’s a great model IMHO.
Step 703 rebuilt - as per instructions. I think it was correct last time but I can’t be certain.The fact that all the jib functions operate one way, but not the other means that only one side of this array of gears is getting power:
The grey clutches select up/down, in/out or whatever, but if only one half of the red gears are powered, the functions will only work one way.
The other thing about the part of the gearbox in 703 is that it switches power from upper to lower chassis functions.
If something is wrong in that specific part of the gearbox, you could get most of the Issues you mention. If you turn the top sideways 90 degrees and look under the rear of it, the gears should look like this, so maybe worth a check:
By the way, regarding the outriggers not working when you manually turn the input drive - they are very low geared so it would take a lot of turns to get them to start moving.
That’s about all I can offer, but hope you sort it - it’s a great model IMHO.
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