Create an account Home  ·  ·  Forums  ·  ·  Articles  ·  ·  Downloads  ·  ·  Photo Gallery  
Login
Nickname

Password

Don't have an account yet? You can create one here.

Navigation
· Home
· Article Archive
· Article Submit
· Downloads
· FAQ
· Forums
· Members List
· Photo Gallery
· Private Messages
· Web Links
· Your Account

Search Articles



Forums

Wiper motor...which is the correct one?
Lead additive, one more question.
M31C mount with or without replica weapon
Backfire and Hesitation
Wanted: Steering column and shaft for M38-1952, or late CJ2A
2024 CT. MILITARY VEHICLE SHOW AND FLEA MARKET- JUNE 15,2024
Brake Line
How to link full size photos in posts
Clutch release bearing support cast tab for return spring
T90 case replacement required?

Willys M Jeeps Forums


willysmjeeps.com :: View topic - AB15 installation on an MP50 mount
 Forum FAQForum FAQ   SearchSearch   UsergroupsUsergroups   ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

AB15 installation on an MP50 mount

 
Post new topic   Reply to topic    willysmjeeps.com Forum Index -> Technical Knowledge Base
View previous topic :: View next topic  
Author Message
Jake266
Member


Joined: Sep 09, 2010
Posts: 51
Location: Missouri

PostPosted: Fri Oct 27, 2017 11:27 am    Post subject: AB15 installation on an MP50 mount Reply with quote

After a very long time in the shop, I finally have my M38 back home. I removed the AB15 from the mount before she went in for repairs but for some reason, I believe I'm missing a washer for reinstall. Can someone please show me where each washer and the rubber washer go on the MP50 mount? Living in the country I need to have the antenna on and up so people don't run over me on the roads. The flag at the top kinda sticks out, I hope.
Thanks for any help anyone can supply.[/i][/b]
Back to top
View user's profile Send private message
wesk
Site Administrator
Site Administrator


Joined: Apr 04, 2005
Posts: 16225
Location: Wisconsin

PostPosted: Fri Oct 27, 2017 12:16 pm    Post subject: Reply with quote


Detail C in this drawing doesn't show any washers between AB-15 and MP-50.

View larger version: http://willysmjeeps.com/v2/modules/gallery/albums/album227/SC_D_28605.jpg

That only means the AB15 when installed on the MP50 doesn't require any separate washers on the radio set instructions. The washers you are concerned with may only show up on a detailed parts list or drawing for the AB15 specifically. You need a copy of the Parts List for the AB-15/GR antenna base. TM 11-5985-230-14P.

http://www.liberatedmanuals.com/TM-11-5985-230-14P.pdf



GASKET NO-REF-DESIG 3 X 1-29-32 X 1-16 IN. Ref Drwg SCD12520-2 (80063) NSN 5310-00-189-8907 PN SA212 (Entron Industries Lp) or PN HP8009 (Henry Products). Specs below:

Quote:
5310-00-189-8907, 5310001898907 Characteristics Data
MRC Criteria Characteristic
AAGR CROSS-SECTIONAL SHAPE STYLE RECTANGULAR
AAUB HOLE DIAMETER 1.906 INCHES NOMINAL
ABMW PERIPHERAL SHAPE STYLE ROUND
ABMX CENTER HOLE SHAPE STYLE ROUND
ABNM THICKNESS 0.062 INCHES NOMINAL
ADAV OVERALL DIAMETER 3.000 INCHES NOMINAL
CQBC III MINIMUM TENSILE STRENGTH 1 POUNDS PER SQUARE INCH
CQFM HARDNESS RATING 35.0 DUROMETER MINIMUM AND 45.0 DUROMETER MAXIMUM
MATT MATERIAL RUBBER SYNTHETIC OVERALL
MDCL MATERIAL DOCUMENT AND CLASSIFICATION MIL-R-3065 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL

_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php


Last edited by wesk on Fri Oct 27, 2017 2:30 pm; edited 1 time in total
Back to top
View user's profile Send private message Send e-mail Visit poster's website
radtech
Member


Joined: Aug 09, 2010
Posts: 170

PostPosted: Fri Oct 27, 2017 2:15 pm    Post subject: Reply with quote

Rubber seals go between the ceramic elements and the MP50.One on the top and one on the bottom half.If you have the grounding disc with strap and hose clamp that goes around the antenna connector then the grounding disc goes against the MP50 and the rubber goes between the grounding disc and lower ceramic section.
Back to top
View user's profile Send private message
wesk
Site Administrator
Site Administrator


Joined: Apr 04, 2005
Posts: 16225
Location: Wisconsin

PostPosted: Fri Oct 27, 2017 2:44 pm    Post subject: Reply with quote

Good point Radtech. The clamp/ring and strap are part of the terminal adapter UG-273/U.

One problem if you do not already have the clamp ring and starp, the replacements available seem to not include the clamp/ring and strap.

UG-273/U
NSN: 5935-00-149-3534
Also manufactured under the following part numbers... 0906-0310, 10519439, 11368, 1250-0071, 1703, 2413, 24339 24006, 29JP100-1, 29JP100-2, 31-028, 31-028-1020, 357-6632-010, 4000, 4101320-005, 470-2, 588A18, 5900007-0000-000, 7124872P1, 73-90910-4, 7601754, 888997-4203, A50731, IS000177, MILA27434, MS90577+273, MS90577-273, N17C67988-5260, P250A4063, RE49F389, RT510-075.00, UG-273/U, UG273U
Exact style may vary between manufacturers
Mil-Spec Grade components are manufactured to a higher specification for military use.


_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
Back to top
View user's profile Send private message Send e-mail Visit poster's website
radtech
Member


Joined: Aug 09, 2010
Posts: 170

PostPosted: Fri Oct 27, 2017 5:30 pm    Post subject: Reply with quote

The UG-273/U with the ring and clamp was not used in some installations that used the W-128 wire and not coaxial cable.The ring and ground clamp were not issued with every AB-15.It just grounds the shield layer of a coaxial cable and is really not necessary for the operation of a radio set.
Back to top
View user's profile Send private message
Jake266
Member


Joined: Sep 09, 2010
Posts: 51
Location: Missouri

PostPosted: Sat Oct 28, 2017 7:32 am    Post subject: Reply with quote

Thanks everyone for your replies. I have only 1 neoprene washer and the other one is metal. I do have the grounding piece also. Guess I have to find another neoprene washer somewhere. Wes, the drawing you included really helps, thanks.
Back to top
View user's profile Send private message
wesk
Site Administrator
Site Administrator


Joined: Apr 04, 2005
Posts: 16225
Location: Wisconsin

PostPosted: Sat Oct 28, 2017 9:14 am    Post subject: Reply with quote

If you are using shielded coax do use the ground clamp/ring. It may not be needed for radio ops but it is needed for completing the needs of the shield to help prevent unwanted radio noise.
_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
Back to top
View user's profile Send private message Send e-mail Visit poster's website
wesk
Site Administrator
Site Administrator


Joined: Apr 04, 2005
Posts: 16225
Location: Wisconsin

PostPosted: Sat Oct 28, 2017 9:41 am    Post subject: Reply with quote

Here's another helpful drawing I've edited to show the VCR style hookup to the coax.


_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Jake266
Member


Joined: Sep 09, 2010
Posts: 51
Location: Missouri

PostPosted: Sat Oct 28, 2017 1:57 pm    Post subject: Reply with quote

Wes,
Everything will be reconnected and the grounding strap will be attached. Just gotta find a neoprene washer or I'm sure the ceramic will break or crack against the steel. Thanks for the additional drawing.
Back to top
View user's profile Send private message
radtech
Member


Joined: Aug 09, 2010
Posts: 170

PostPosted: Sun Oct 29, 2017 9:31 pm    Post subject: Reply with quote

Which radio set will you install?
Back to top
View user's profile Send private message
Jake266
Member


Joined: Sep 09, 2010
Posts: 51
Location: Missouri

PostPosted: Mon Oct 30, 2017 9:21 am    Post subject: Reply with quote

Radtech,
At the moment all I need is the antenna back in position so I can raise it while driving as an extra protection on our country roads. The colors I have attached to the top of the antenna hopefully give other drivers a clue there is something moving slower than 55mph just over the next hill.
Eventually I will reinstall the radio and power supply. The PS is a PP-112/GR
but not sure about the radio itself. I can't get to it at the moment as some equipment is blocking my access and doc says no messing with it for another week or so. I remember it's an R/T made by magnavox (had a great receiver by them way back when that could blow the roof off a house).


Last edited by Jake266 on Sat Nov 04, 2017 6:32 am; edited 1 time in total
Back to top
View user's profile Send private message
radtech
Member


Joined: Aug 09, 2010
Posts: 170

PostPosted: Mon Oct 30, 2017 9:39 pm    Post subject: Reply with quote

RT-66 20-27.9mc,RT-67 27-38.9mc,RT-68 38-54.9mc.I have been restoring and repairing pre WWII to early Vietnam military radio gear for 45 years.
Back to top
View user's profile Send private message
Jake266
Member


Joined: Sep 09, 2010
Posts: 51
Location: Missouri

PostPosted: Tue Nov 07, 2017 11:35 am    Post subject: Reply with quote

Radtech,
It's an RT-68. I finally made a gasket from a tire patch today I couldn't find a neoprene sheet but the fella at the auto parts store came up with the patch idea. Removed the 1 I still had and used it as a template to cut a new one. Now, once it warms up and drys off a little I will be able to run her into town. It's just the 3 miles on the 2 lane highway that can be dangerous, hence the reason for the antenna with the colors fixed to the top.
Thanks again everyone for your advice.
Back to top
View user's profile Send private message
4x4M38
Member


Joined: May 30, 2014
Posts: 3440
Location: Texas Hill Country

PostPosted: Tue Nov 07, 2017 5:31 pm    Post subject: Reply with quote

Way to think outside the box!
_________________
Brian
1950 M38
MC11481
http://www.willysmjeeps.com/v2/modules.php?set_albumName=album372&op=modload&name=gallery&file=index&include=view_album.php
Back to top
View user's profile Send private message Send e-mail
Display posts from previous:   
Post new topic   Reply to topic    willysmjeeps.com Forum Index -> Technical Knowledge Base All times are GMT - 6 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

Powered by phpBB © 2001 phpBB Group
Forums ©

 



PHP-Nuke Copyright © 2005 by Francisco Burzi. This is free software, and you may redistribute it under the GPL. PHP-Nuke comes with absolutely no warranty, for details, see the license.