Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×


Reply
 
Thread Tools Display Modes
Old 09-19-2021, 09:28 PM   #1
Junior Member
 
Join Date: Apr 2019
Posts: 9
Lesson learned Severed 7 pin cable

Hello all

Have a 2019 248rbs and coming home from vacation I somehow severed the 7pin trailer cable. Lesson learned and fixing the problem was how the cable is crimped at the junction box shown below. The remedy I am putting in is another box so I don't have to redo the crimps in the junction box. One I finish it, the new box will be mounted on the inside on the frame. This will save a person from undoing the crimps and crimping again. Going forward if this happens again I just take the old cable off and put on a new cable.

I bought the cable and box from Amazon at the link below...

https://www.amazon.com/gp/aw/d/B07L8...b_b_prod_imageClick image for larger version

Name:	IMG_20210919_140610_1.jpg
Views:	67
Size:	80.5 KB
ID:	263088Click image for larger version

Name:	IMG_20210919_140622.jpg
Views:	69
Size:	70.6 KB
ID:	263089Click image for larger version

Name:	IMG_20210919_140631.jpg
Views:	70
Size:	70.8 KB
ID:	263090
ggrimm01 is offline   Reply With Quote
Old 09-20-2021, 01:17 AM   #2
Senior Member
 
Join Date: Nov 2015
Posts: 668
Wow. A thing of beauty compared to the rats nest in most trailers.
Good find.
MtBiker is offline   Reply With Quote
Old 09-20-2021, 06:11 AM   #3
Senior Member
 
JWood422's Avatar
 
Join Date: Jun 2019
Location: At home
Posts: 816
And Click image for larger version

Name:	IMG_9515.jpg
Views:	50
Size:	123.2 KB
ID:	263098itís made with decent copper!
JWood422 is offline   Reply With Quote
Old 09-20-2021, 07:39 AM   #4
Senior Member
 
Join Date: Jun 2012
Location: Central Wyoming
Posts: 131
Quote:
Originally Posted by MtBiker View Post
Wow. A thing of beauty compared to the rats nest in most trailers.
Good find.
Except it sounds like he is leaving the rats nest and just adding another splice point for the 7 pin cable. The original junction is not sealed at all and those nice pretty crimp splices will be a corroded mess eventually. Better to replace the metal indoor rated junction box with the new box and install a new umbilical cord.
WY Husker Fan is offline   Reply With Quote
Old 09-20-2021, 08:26 AM   #5
Senior Member
 
Join Date: Jan 2020
Posts: 1,861
Quote:
Originally Posted by WY Husker Fan View Post
Except it sounds like he is leaving the rats nest and just adding another splice point for the 7 pin cable. The original junction is not sealed at all and those nice pretty crimp splices will be a corroded mess eventually. Better to replace the metal indoor rated junction box with the new box and install a new umbilical cord.
Yes, it looks like he is taking the old 7-pin cable from the original junction box and running it into the new junction box. I agree, personally, I believe it would be better to completely eliminate the old junction box entirely.
NavyLCDR is offline   Reply With Quote
Old 09-20-2021, 12:31 PM   #6
Senior Member
 
SetauketJeff's Avatar
 
Join Date: Jun 2020
Location: On Long Island NY
Posts: 240
There are a few threads about this. The metal boxes are for interior use and not waterproof and should be swapped out for the waterproof plastic ones. If you use a long enough 7pin connector and cable, you should be able to terminate directly into a waterproof plastic box just under and behind the frame of the "A" frame in front (such that the waterproof plastic junction box is located behind the frame and under the body of the camper).
__________________
Every stop light is a staging light!
2021 Wolf Pup 16FQ.
2007 Chevy Trailblazer LT 4X4 Tow Package, Locking Rear, 157K Just pulled 16FQ 1,044 miles. Husky Centerline TS32215 WDH Round Bar 400-600Lbs.
CURT 51180 Echo Bluetooth Brake Controller (Love it!)
2004 Ford F-150 STX 4X4 Tow Package, 206K For Pulling TT in the sand
SetauketJeff is offline   Reply With Quote
Old 09-20-2021, 12:37 PM   #7
Senior Member
 
Join Date: Jan 2018
Location: Raleigh, NC
Posts: 4,919
Gas-tight crimps

Quote:
Originally Posted by WY Husker Fan View Post
Except it sounds like he is leaving the rats nest and just adding another splice point for the 7 pin cable. The original junction is not sealed at all and those nice pretty crimp splices will be a corroded mess eventually. Better to replace the metal indoor rated junction box with the new box and install a new umbilical cord.
Pretty sure those Buchanan connectors qualify as gas-tight crimps. Bell Labs did a bunch of research on it, probably 70-80 years ago, and discovered that if the crimps were gas-tight, the box didn't have to be weather-tight.
__________________
Larry

Sticks and Bricks: Raleigh, NC
2008 Cherokee 38P: at Ivor, VA permanently
Larry-NC is offline   Reply With Quote
Old 09-20-2021, 12:48 PM   #8
Senior Member
 
SetauketJeff's Avatar
 
Join Date: Jun 2020
Location: On Long Island NY
Posts: 240
Search 7 pin Trailer Cord and you will find them in all lengths. Some even come the with waterproof junction box. This will help you neaten up the mess that you have.



One example: https://www.amazon.com/MICTUNING-Hea...2159862&sr=8-5
__________________
Every stop light is a staging light!
2021 Wolf Pup 16FQ.
2007 Chevy Trailblazer LT 4X4 Tow Package, Locking Rear, 157K Just pulled 16FQ 1,044 miles. Husky Centerline TS32215 WDH Round Bar 400-600Lbs.
CURT 51180 Echo Bluetooth Brake Controller (Love it!)
2004 Ford F-150 STX 4X4 Tow Package, 206K For Pulling TT in the sand
SetauketJeff is offline   Reply With Quote
Old 09-20-2021, 12:50 PM   #9
Senior Member
 
Join Date: Jan 2020
Posts: 1,861
Quote:
Originally Posted by Larry-NC View Post
Pretty sure those Buchanan connectors qualify as gas-tight crimps. Bell Labs did a bunch of research on it, probably 70-80 years ago, and discovered that if the crimps were gas-tight, the box didn't have to be weather-tight.
Those winged wire nu in the same box are nothing-tight.
NavyLCDR is offline   Reply With Quote
Reply

Tags
cable

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Forest River, Inc. or any of its affiliates. This is an independent, unofficial site.



All times are GMT -5. The time now is 11:28 PM.