Gun mount and gun sleeve screw up issue (Already solved)

Forum for discussion relating to the Jagdtiger
Post Reply
User avatar
Chang
Posts: 1002
Joined: Mon Jul 21, 2008 1:45 am
Has liked: 14444 times
Been liked: 334 times

Gun mount and gun sleeve screw up issue (Already solved)

Post by Chang »

Hi all Jagdtiger builders,

As per Building Instructions Figure 27 Gun Assembly Note 2, Gun Mount(CT0402) is screwing up with Gun Sleeve(CT0404):
1-6JT-67.JPG
1-6JT-67.JPG (154.41 KiB) Viewed 2799 times

While doing so as firmly as I could, I ended up with about 1cm mis-alignment between them :
1-6JT-68-2.jpg
1-6JT-68-2.jpg (122.55 KiB) Viewed 2799 times
1-6JT-69-2.jpg
1-6JT-69-2.jpg (113.54 KiB) Viewed 2799 times
Don't want to unwisely trying further and damage the four pitched holes on the Gun Sleeve for two Elevation Pivots(CT0411). Now I can't screwing neither forward (clockwise) nor backward (anti-clockwise) to align them with each other.

There must be a proper way of doing the job. Can any of you experienced builder share your knowledge please? :idea:

Frustrated,
Lerh Chang :oops:
Last edited by Chang on Fri Apr 02, 2021 8:51 am, edited 1 time in total.
------------------------------------------------------------------
Es braust unser Panzer im Sturmwind dahin.....

User avatar
John Clarke
Posts: 1531
Joined: Sun Oct 17, 2010 10:06 pm
Location: Staffordshire
Been liked: 1566 times

Re: Gun mount and gun sleeve screw up issue

Post by John Clarke »

Chang I don't have the model, I had a similar problem with Chieftain hubs not fitting flush.
First make sure both pieces are clean and no debris on the inside tread a little lubricant might help and try again. If still a problem it looks as though the thread of CT0404 is bottoming out (running out of thread) out on CT0402. Try removing a little off the threaded end of CT0404 depending on thread pitch (0.25-1.0mm) this would allow a little more turning of CT0404 into CT0402.
Hope it helps.

P.S you are an experienced modeler 8)
Oh Man, I only ride em I don't know what makes them work,
Definatley an Anti-Social type

User avatar
Armortek
Site Admin
Posts: 2743
Joined: Tue Jul 10, 2007 10:30 am
Location: Winchester, England
Been liked: 2838 times

Re: Gun mount and gun sleeve screw up issue

Post by Armortek »

Hi Chang, Couple of things you can try to get the parts loose - (a) soak them in WD40 for a couple of days and/or (b) put them in the freezer for a couple of days.

Once you have the parts separated, you do not need to screw CT0402 all the way on CT0404 - you need to leave the parts a little loose otherwise CT0407 will be pulled too tight on to CT0150.
Kian
Armortek

User avatar
Chang
Posts: 1002
Joined: Mon Jul 21, 2008 1:45 am
Has liked: 14444 times
Been liked: 334 times

Re: Gun mount and gun sleeve screw up issue

Post by Chang »

Thanks John and Kian for the advices. Now I need to un-screw CT0404 a little, only wish not to cause any damage as they are deadly tight now.

I was firstly screwing them together with perfect alignment exactly as Kian's saying ---with a little loose--- . Only found the Recoil Bush A (CT0403) inside the Gun Mount (CT0402) with a very small (say less 1mm) movable gap, which I thought should be eliminated by screwing CT0402 and CT0404 a little further. That was an over-perfectionist's error. :oops:

With best regards,
Lerh Chang
------------------------------------------------------------------
Es braust unser Panzer im Sturmwind dahin.....

User avatar
Chang
Posts: 1002
Joined: Mon Jul 21, 2008 1:45 am
Has liked: 14444 times
Been liked: 334 times

Re: Gun mount and gun sleeve screw up issue

Post by Chang »

Un-screw a little loose job done, according John and Kian's advices. Thanks again mates. :mrgreen: :mrgreen: :mrgreen:
------------------------------------------------------------------
Es braust unser Panzer im Sturmwind dahin.....

Post Reply