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10-10-2014, 11:37 AM
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#1
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Montana Master
Join Date: Jan 2013
Location: Depends on temps
Posts: 1,648
M.O.C. #13157
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Drain Valve Lubricant
Hello All,
The front grey water valve (shower and bath sink) is getting rather stiff to operate. Not sure if it is the cable or the valve it's self. The Black and rear Grey operate very smoothly. ('14 3150RL) (2 cable operated valves in utility area.) (1 cable operated valve behind left rear wheel Kitchen Tank)
Looking for suggestions on either lubing the cable or valve.
Thanks Jim
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2012 Ram Laramie 3500 DRW 4x4 3.73 Tow Max Pkg B&W Companion 60 gal RDS aux fuel tank. 2014 Montana 3150RL, 2 A/C's, Leather, 6 Point Jacks, Splendede WD2100XC, Mor/ryde X-Factor, Duravis 250 tires with TST 507RV monitors. 2 x Honda EU2000's
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10-10-2014, 11:40 AM
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#2
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Montana Master
Join Date: Aug 2007
Location: Waterford
Posts: 3,693
M.O.C. #7500
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Use a silicone spray or liquid as it is neutral (won't hurt any rubber, plastic or vinyl parts) and won't attract and trap dirt like oil or light grease will. Nor is it as messy.
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10-10-2014, 12:15 PM
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#3
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Montana Master
Join Date: Feb 2012
Location: Lake Gaston
Posts: 8,773
M.O.C. #12156
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No way to lubricate the cable run if that is the problem. Corrosion and crud builds up inside the cable sleeve.
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Mike and Lorraine
2002 3655 FL, 2005 3650RK
2010 3665RE, 2015 3910FB
F350 crew cab dually 6.7
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10-10-2014, 12:55 PM
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#4
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Montana Master
Join Date: Mar 2013
Location: Hanover
Posts: 1,471
M.O.C. #13325
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The problem is the same as with (older) motorcycle and bicycle cables. Liquid graphite works well with them and should work well with these (I've never had this problem).
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10-10-2014, 02:15 PM
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#5
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Montana Fan
Join Date: Dec 2005
Location: Grain valley
Posts: 356
M.O.C. #5098
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I have had the problem with both of my Montana's and now with the SOB. My problem is with the black tank only. I believe it is the valve that causes the problem. I am using Thetfords valve lubricant and it definitely works. After I dump and rinse the tanks I add a two or three gallons of water and pour in some of the lubricant.
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10-10-2014, 04:31 PM
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#6
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,692
M.O.C. #12947
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Same here, had tight black valve, and the Thetford valve lube worked. Added 4 oz of the lube along with my normal tank treatment and some Calgon. After several cycles, the valve was back to operating easy.
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Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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10-11-2014, 12:56 AM
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#7
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Montana Master
Join Date: May 2011
Location: Fayetteville
Posts: 4,200
M.O.C. #11401
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Calgon works well. Also, you can take the wall down behind the Ser vice center, unbolt the cables, run lubricant down the housing around the shaft , it will free them up. "Break Free" gun lube works well.
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10-11-2014, 03:37 PM
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#8
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Seasoned Camper
Join Date: Apr 2004
Location: Sioux Falls
Posts: 54
M.O.C. #1405
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We had a 2011 3400RL with the same problem and started spraying the tee handles with WD40 every time I dumped and the problem went away. I hope this helps.
TC
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