PDA

View Full Version : cable tough to pull



challenger10
12-05-2012, 08:19 PM
I have a 2012 Landmark Rushmore 5th wheel, each time a go to dump my black tank the cable gets harder to pull the valve open each time. What can I do before the cable breaks from the valve?

wdk450
12-05-2012, 09:42 PM
Here is a previous thread on the subject: //heartlandowners.org/showthread.php/31454-lubricating-dump-valve-cables?highlight=dump+cable

Within that thread is a suggestion to simply replace the cable, which was said to be fairly easy. I found a link on another thread for a 2nd place to buy them: http://www.rvtoast.com/wastewater-plumbing-holding-tanksfittings-vents-c-28_94_104.html?page=4&sort=2a

Here is a link to the motorcycle cable lube kit I suggested:http://www.amazon.com/Tusk-Cable-Lube-Kit/dp/B0039O2OAI

mobilcastle
12-06-2012, 06:42 AM
My DW uses a soap type mixture in our tanks-have never had a problem with sticking cables or valves.

2psnapod1
12-06-2012, 09:50 AM
My DW uses a soap type mixture in our tanks-have never had a problem with sticking cables or valves.

Care to share that 'soap type mixture' recipe?

westxsrt10
12-06-2012, 11:56 AM
"Dawn" dish washing liquid + "Calgon" liquid.....1oz of each a few times a week.

TandT
12-06-2012, 12:20 PM
I take lithium spray grease with a straw engaged and spray a little down into the hole along the cables in the UDC periodically.
It seems that when I engage and remove the fresh and black tank flush hoses, quite often a little water will drip down on the valve cables causing a bit of corrosion at the T handles. This seems to help. Bill's cable lube gizmo would probably work better. I have just never gotten around to getting one.

I agree with westxsrt10, I also use Dawn and Calgon in my tanks. Trace

wdk450
12-06-2012, 01:08 PM
I have a 2012 Landmark Rushmore 5th wheel, each time a go to dump my black tank the cable gets harder to pull the valve open each time. What can I do before the cable breaks from the valve?

I was curious about this especially after reading on motorcycle forums that there are 2 types of actuator cable assemblies: plastic lined and unlined (metal to metal inside). The plastic lined ones need no lubrication. I e-mailed Valterra about this and got the following reply:

Hi William,

You can use silicone spray lubricant. The cable wire is metal not plastic.

Belinda Garcia
Customer Service
Valterra Products

mobilcastle
12-06-2012, 02:10 PM
Care to share that 'soap type mixture' recipe? She uses Calgon and a liquid laundry soap-no specific kind. We have never had odors or tank problems either.

nscaler2
12-06-2012, 02:34 PM
I use 2 cups of any cooking oil in the tank about every 3 weeks. We full-time about 5 months a year. Keeps the valves working smooth.

challenger10
12-06-2012, 06:48 PM
Thanks for all of the suggestions, I will try the soap with Calgon and also will lube the cable.

Birchwood
12-06-2012, 07:47 PM
My RV repairman told me to pour canola oil down the flush and thats what I do when the valve is sticky
but thats not often.

wdk450
12-06-2012, 10:40 PM
"Dawn" dish washing liquid + "Calgon" liquid.....1oz of each a few times a week.

DAWN: The RVers Windex (See the movie "My Big Fat Greek Wedding").

aatauses
12-06-2012, 11:33 PM
All of the above suggestions should work for you. In addition, sometime when you have the belly pans off, right where the cable goes into the valve is a small piston type valve---put a drop or two of some type of lubricant--silicone, grease, light oil, etc--this should take care of the problem.
al

TandT
12-07-2012, 01:18 AM
DAWN: The RVers Windex (See the movie "My Big Fat Greek Wedding").

Yep saw the movie. Good comparison. :) Trace