Communications Equipment Radio, telephony and radar equipment |
 |
Torn e.b. front plate screws stuck |
 |
04-14-2018, 02:16 AM
|
#1
|
New Member
IK5QLO is offline
Join Date: Nov 2017
Location: Lucca - Italy
Posts: 40
|
Torn e.b. front plate screws stuck
Hello,
I am trying to remove the RF/AF units from a 1939 Torn E.b but the front plate's screws looks like they are totally blocked.
I tried the usual methods, soacking front and rear with various types of lubricants etc. hitting the head of the screws with a soft hammer etc, but no way.
Any suggestion? Thank you
Regards
Andrea
Last edited by IK5QLO; 04-14-2018 at 02:30 AM.
|
|
|
04-14-2018, 02:54 AM
|
#2
|
Association Member
Yuri D. is online now
Join Date: Apr 2001
Location: Western Hemisphere
Posts: 6,182
|
Heat with soldering iron for 5 min
|
|
|
04-14-2018, 03:10 AM
|
#3
|
New Member
IK5QLO is offline
Join Date: Nov 2017
Location: Lucca - Italy
Posts: 40
|
Quote:
Originally Posted by Yuri D.
Heat with soldering iron for 5 min
|
Many thanks Yuri, I was thinking about it but I was afraid to damage the original paint on the screws but I'll try on one.
Anyway, heating means expanding metal, I was also thinking to use spray ice trough to a tube surrounding the screw.
regards Andrea
Last edited by IK5QLO; 04-14-2018 at 03:27 AM.
|
|
|
04-14-2018, 04:07 AM
|
#4
|
Member
Funksammler is offline
Join Date: Jan 2009
Location: Normandy
Posts: 2,968
|
....Also note that the key to undoing frozen screws is a perfectly fitting screwdriver. I find that with the right screwdriver, I can usually put enough torque on a screw to either loosen it or break it....
regards,
Funksammler
|
|
|
04-14-2018, 04:44 AM
|
#5
|
New Member
IK5QLO is offline
Join Date: Nov 2017
Location: Lucca - Italy
Posts: 40
|
Right, Those German screws have very narrow head slots, I modified a screwdriver head to fit perfectly, but sincerely I would like to avoid breaking them.
Thank you
Quote:
Originally Posted by Funksammler
....Also note that the key to undoing frozen screws is a perfectly fitting screwdriver. I find that with the right screwdriver, I can usually put enough torque on a screw to either loosen it or break it....
regards,
Funksammler
|
|
|
|
04-14-2018, 10:08 AM
|
#6
|
Member
whsammler is offline
Join Date: Dec 2004
Location: Canada
Posts: 1,971
|
Würth makes a great set of Slot screwdrivers that I find fit the heads of most WW2 German Coms & Optics screws.
Glen
Collector of Wehrmacht Ordnance, Optics & Field Equipment.
Sent from my iPhone using Tapatalk
|
|
|
 |
unscrew the screw |
 |
04-15-2018, 03:14 PM
|
#7
|
Member
LA6NCA is offline
Join Date: Mar 2013
Location: Larvik, Norway
Posts: 158
|
unscrew the screw
I have a good method of loosening screws that are stuck.
I'm trying to unscrew the screw with quite a big torque.
Then I loosen the momentum.
Then I'll do the same thing again.
And again, 100 times.
What happens then is that the upper part of the screw turns very little.
The screw itself turns at the top.
After many times, this movement will move gradually downwards the screw.
Finally, loosen the screw.
I have done this many times, and always with good results.
LA6NCA
|
|
|
 |
|
 |
04-16-2018, 02:34 AM
|
#8
|
New Member
IK5QLO is offline
Join Date: Nov 2017
Location: Lucca - Italy
Posts: 40
|
Thank you Helge,
I will try this method also, this is my last resorts since I also tried to heat the screws
with a big soldering iron without results.
I planned to remove the front panel of my 1939 Torn e.b to repaint it after I made a remediation to some holes drilled on it. I threaded the holes M8 and did some very short screws from an aluminium rod.
Anyway I could also leave it as it is without removing the panel, the radio already works nicely.
regards
Andrea
Quote:
Originally Posted by LA6NCA
I have a good method of loosening screws that are stuck.
I'm trying to unscrew the screw with quite a big torque.
Then I loosen the momentum.
Then I'll do the same thing again.
And again, 100 times.
What happens then is that the upper part of the screw turns very little.
The screw itself turns at the top.
After many times, this movement will move gradually downwards the screw.
Finally, loosen the screw.
I have done this many times, and always with good results.
LA6NCA
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
Thread Tools |
|
Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is On
|
|
|
|
|
|