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05-23-2020, 09:30 AM
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#1
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Member
Join Date: May 2020
Posts: 30
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Soaking a 7-way plug in vinegar
I read that you can soak a 7-way plug in vinegar to remove the corrosion from the terminals inside the connector.
,, is it safe to do that while my travel trailer is plugged into 50 amp on the AC side and connected to my 12 volt battery also? Or do I have to go back underneath my trailer and disconnect the 7-way wire somewhere first?
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05-23-2020, 09:36 AM
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#2
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FLY4FUN
Join Date: Jun 2019
Location: PIEDMONT NC
Posts: 321
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...don't believe I would. I'm unsure of just how much the vinegar might support conductivity, but expect it will. That said, it seems likely that there'd be some potential for "shorting" that could damage converter. Without a lot of research, the only way I'd feel safe would be to disconnect both shore power and battery while "soaking". .02$ FWIW
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05-23-2020, 09:40 AM
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#3
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Senior Member
Join Date: Aug 2013
Location: Pincher Creek, AB
Posts: 860
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Since vinegar is conductive, I wouldn't be soaking it while your unit has shore power, or battery power connected. If you can isolate the 12 volt connection on the cord end (pin 4) where it connects to your unit you should be fine, but I wouldn't reconnect it until it was dry.
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Camped: 2024 (Days/Nights) - 4/3
2023 (D/N) - 34/27, 2022 (D/N) - 41/33, 2021 (D/N) - 37/29, 2020 (D/N): 58/49
TT: 2020 26' Hemisphere 26BHHL
TV: 2020 GMC 2500HD 4x4
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05-23-2020, 09:50 AM
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#4
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Senior Member
Join Date: Jan 2020
Posts: 4,866
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1. Don't soak it with ANY power source connected. The 7-way plug will have +12 vdc on one pin any time a power source is connected (either the battery, or the converter if plugged into shore power). Vinegar is electrically conductive.
2. Be sure to rinse it with plain water after soaking to remove residual acidic vinegar.
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05-23-2020, 01:55 PM
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#5
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Senior Member
Join Date: Nov 2012
Location: Michigan
Posts: 597
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You could use a can of electrical contact cleaner spray as used for electrical contacts in electronic equipment. Not that expensive and cleans contacts pretty well. Spray it on and work the connection plug. Be careful to test it first because sometimes it can be harmful to certain plastics. I use "Osborn" High Tech Electronic Cleaner #76334 from Osborn Manufacturing in Cleveland OH. Nice thing is it does leave a microscopic film for protection against corrosion, which could help prevent future problems. I've had the can a while, but, presume it is still made (or something like it). Hope that helps you.
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05-23-2020, 02:17 PM
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#6
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Senior Member
Join Date: Aug 2014
Location: Northern KY
Posts: 5,725
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this is best not only to clean but to protect the metal connectors... I spray this on all connections/connectors on the trailer 12 volt or 120 volt...
__________________
"nothing can now be believed which is seen in a newspaper. Truth itself becomes suspicious by being put into that polluted vehicle."
Thomas Jefferson to John Norvell pg. 2, June 11, 1807
2014 Shamrock 183
2014 RAM 1500 Bighorn Crew Cab, HEMI, 3.21 gears, 8 Spd, 4X4 TST TPMS
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05-23-2020, 02:30 PM
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#7
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Senior Member
Join Date: Jul 2017
Location: North of Seattle, WA
Posts: 17,354
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If I have a corrosion issue with electrical contacts I prefer to disconnect and manualy clean surfaces. Then reconnect and properly torque screws.
THEN I apply a contact cleaner/protectant.
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"A wise man can change his mind. A fool never will." (Japanese Proverb)
"You only grow old when you run out of new things to do"
2018 Flagstaff Micro Lite 25BDS
2023 f-150 SCREW XLT 3.5 Ecoboost (The result of a $68,000 oil change )
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05-23-2020, 02:38 PM
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#8
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Senior Member
Join Date: Jan 2018
Location: Raleigh, NC
Posts: 9,614
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Some folks...
Quote:
Originally Posted by TitanMike
If I have a corrosion issue with electrical contacts I prefer to disconnect and manualy clean surfaces. Then reconnect and properly torque screws.
THEN I apply a contact cleaner/protectant.
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Some folks let the umbilical fall into the mud when parked for a while. Contacts can tarnish, oxidize, rust, and even break off if it's been there a while. (Ask me about the break-off part.)
The proper stowage for the umbilical is tucked up into the propane tank shroud from the bottom.
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Larry
"Everybody's RV is not like your RV."
"Always take pictures with the button on the right."
"Always bypass the water heater before opening the low-point drains."
Sticks and Bricks: Raleigh, NC
2008 Cherokee 38P: at Ivor, VA permanently
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05-23-2020, 02:39 PM
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#9
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Senior Member
Join Date: Nov 2012
Location: Michigan
Posts: 597
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Yes, I agree with TitanMike, if you can manually clean the surfaces, that is the best way, then spray. rsdata's brand of contact cleaner is a good one also. I think I got my can of spray from an professional electronics dealer when I was designing our TV Studio about 10 years or so ago, but, that was a while back. It was a 16 oz can.
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05-23-2020, 03:47 PM
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#10
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Senior Member
Join Date: Oct 2018
Location: Right Half of OR
Posts: 593
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Quote:
Originally Posted by Larry-NC
The proper stowage for the umbilical is tucked up into the propane tank shroud from the bottom.
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My TT has a "cup" on the A-frame for the 7-way to nest in. Really convenient and actually useful. Thanks, Forest River.
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Greg 'n Deb
2020 R-POD 195 HRE
'17 Tacoma 3.5L,'07 Tundra 5.7L w/ tow pkgs.
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05-23-2020, 05:09 PM
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#11
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Senior Member
Join Date: Nov 2013
Location: Ohio North Coast
Posts: 569
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I use PB Blaster to clean electrical connections on my tow vehicle plug and the umbilical cord plug on my tt. I give them a shot every now and then as a preventative maintenance thing.
Bob
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2013 Ford F250 SD 6.7L
2014 Wildwood Heritage Glen 282RK
Certified Rumble Strip Tester
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05-23-2020, 05:13 PM
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#12
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Senior Member
Join Date: Jul 2017
Location: California
Posts: 7,616
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Quote:
Originally Posted by retiredcamper47
I use PB Blaster to clean electrical connections on my tow vehicle plug and the umbilical cord plug on my tt. I give them a shot every now and then as a preventative maintenance thing.
Bob
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Why would you spray something with oil in it on your electrical connectors?
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05-23-2020, 05:14 PM
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#13
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Senior Member
Join Date: Jun 2012
Posts: 10,907
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Quote:
Originally Posted by Dirt Sifter
My TT has a "cup" on the A-frame for the 7-way to nest in. Really convenient and actually useful. Thanks, Forest River.
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And if you don't have one, they're cheap:
https://www.amazon.com/Boat-Camper-T.../dp/B006R5C0G4
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1988 Coleman Sequoia - popup (1987-2009) - outlasted 3 Dodge Grand Caravans!
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2011 Traverse LT, 3.6L, FWD
2009 Silverado 1500 Ext Cab, 5.3L, 4x4, 3.73
2016 Silverado 2500HD Dbl Cab, 6.0L 4x4, 4.10
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05-23-2020, 05:16 PM
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#14
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Senior Member
Join Date: Jul 2017
Location: California
Posts: 7,616
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I use this one...holds it up in the air with the cap on top so water can't get in. Attaches to the jack. My jack cover provides additional protection
https://smile.amazon.com/HUSKY-TOWIN...0272134&sr=8-2
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05-23-2020, 09:11 PM
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#15
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Member
Join Date: May 2020
Posts: 30
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Thanks all very helpful
__________________
Judd
Texas
2017 Forest River Salem Hemisphere Lite 32'
Travel Trailer Newbie
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05-23-2020, 10:00 PM
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#16
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Senior Member
Join Date: Oct 2017
Location: Quincy, WA
Posts: 1,507
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wd-40 to the rescue. It has many uses. Works very nice for moisture displacement on trailer connections.
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Ken and Kathy Redburn
2018 DX3 37TS (The Taj)
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05-23-2020, 10:53 PM
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#17
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jkoenig24
Join Date: Apr 2015
Location: Box Elder, SD (formerly NY)
Posts: 953
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Another vote for Deoxit.
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05-23-2020, 10:57 PM
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#18
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Senior Member
Join Date: Jan 2020
Posts: 712
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After it is clean smear some dielectric grease on the plugs. Lasts a long time to keep corrosion from forming and has a negligible impact on conductivity.
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Hobienick
2022 Grand Design Imagine 2800BH
2020 Rockwood Roo 19 (Sold Jul 2022)
2012 F150 SuperCrew Ecoboost
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05-24-2020, 01:15 AM
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#19
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Senior Member
Join Date: Nov 2019
Posts: 1,107
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Quote:
Originally Posted by Larry-NC
Some folks let the umbilical fall into the mud when parked for a while. Contacts can tarnish, oxidize, rust, and even break off if it's been there a while. (Ask me about the break-off part.)
The proper stowage for the umbilical is tucked up into the propane tank shroud from the bottom.
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So, I shouldn't use the "holster" that came installed on my trailer tongue for that purpose? Who knew???
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-Qwkynuf
2003 F150 Supercab 4x4, tow pkg, 3.55 gears
2020 Flagstaff Micro Lite 21DS
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05-24-2020, 09:29 AM
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#20
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Senior Member
Join Date: Oct 2018
Location: Right Half of OR
Posts: 593
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Since we've moved into coatings, remember where you live and play. There is a LOT of dust and dirt where I often go. Bare, dry connectors are best with blasts of compressed air to clean things out when needed. The stuff that protects in the humid, wet are not as helpful in the dry and dusty as they tend to gum things up. My $0.02.
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Greg 'n Deb
2020 R-POD 195 HRE
'17 Tacoma 3.5L,'07 Tundra 5.7L w/ tow pkgs.
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