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09-21-2020, 05:26 PM
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#1
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Senior Member
Join Date: Apr 2018
Location: North Florida
Posts: 130
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Parking brake knob
How hard should the parking brake knob be to pull the parking brake on? Mine is very stiff both pulling on and pushing off. Sometimes I think I am going to pull the knob head off.
Is there a way to lubricate it or is replacement the only option>>>??
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09-21-2020, 05:30 PM
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#2
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Senior Member
Damon Owners Club
Join Date: Jul 2010
Location: Annapolis,MD
Posts: 1,458
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It was designed to require a lot of force so it would
not be inadvertently set or released.
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09-21-2020, 05:33 PM
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#3
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Senior Member
American Coach Owners Club
Join Date: Apr 2016
Location: North Florida
Posts: 2,474
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It's designed to have some resistance, The piston in the valve has a few o-rings...with the valve pulled out, spray a little silicone lube on the shaft and push/pull it a few times (that didn't sound right, lol)
You may could remove a air line to it and spray a little in there as well.
However, the valve is fairly inexpensive and not hard to change...
__________________
1999 American Eagle
ASE med/heavy certified technician
ASE advanced diesel certified
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09-21-2020, 06:31 PM
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#4
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Senior Member
Join Date: Sep 2018
Location: Fort Myers, FL
Posts: 1,690
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You don't want Fido excitedly bouncing around and releasing the brake as you walk away from the rig to go to Walmart...
__________________
2008 Phaeton 36QSH, Safe-t-Plus, Quadra Bigfoot
2017 Jeep Cherokee Trailhawk w/ flat tow wiring mod.
Blue ox, BrakeMaster + BrakeAway, diode lights and charge.
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09-21-2020, 06:59 PM
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#5
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Senior Member
Join Date: Nov 2017
Location: Back Woods of NC
Posts: 1,436
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I've heard some put a short piece of PVC around the brake when parked with a rubber band to secure. Idea being to prevent Fido, kids, etc from knocking out of park.
__________________
2012 Newmar King Aire + 24' Stacker = 74' of Chaos!
We usually have our 4 dogs with us - 2 Labs, 1 Chihuahua / Pug & 1 Corgi / Pappillon
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09-22-2020, 10:32 AM
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#6
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Senior Member
Join Date: Apr 2018
Location: North Florida
Posts: 130
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thanks guys, I will try the silicone route b4 I try replacement. I will need someone to walk me through that..
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09-22-2020, 10:37 AM
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#7
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,449
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You’re working against 120 psi of air pressure.. it’ll never be easy .
Lube yes, but try a couple of other RV with air brakes before you go to the trouble of valve replacement. 
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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09-22-2020, 11:08 AM
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#8
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Community Administrator
Tiffin Owners Club
Join Date: Sep 2013
Location: DFW, Texas
Posts: 21,523
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Our current Power Glide chassis brake release is much harder than the one on our Freightliner but I have gotten used to it. Personally I would rather have one that's pretty stiff than one that's too easy to push/pull.
__________________
 2017 Phaeton 40IH XSH Maroon Coral - Power Glide Chassis with IFS
Previous '15 Tiffin Allegro RED 38QRA and '06 Itasca Sunrise 35A
'16 Jeep JKU Wrangler Sahara or '08 Honda Goldwing
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09-22-2020, 11:16 AM
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#9
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Senior Member
Join Date: Jul 2014
Posts: 35,420
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To lube the shaft, behind the button, first drain the air from the system by pumping the service brakes until you don't hear it.
Then push and pull the park brake knob a few times. Now spray the silicone on the shaft while you continue to do that.
Once done, start it up, let the pressure build up, and see how it feels.
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09-22-2020, 01:30 PM
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#10
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Senior Member
Monaco Owners Club
Join Date: Jan 2010
Posts: 2,660
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As a side: A wooden clothes pin fills the gap between the panel and the knob to avoid accidental parking brake release.
__________________
Jan and Bob
'05 Monaco Windsor 40 DST - ISL / '08 Wrangler
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09-22-2020, 07:17 PM
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#11
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Senior Member
Newmar Owners Club Spartan Chassis
Join Date: Jul 2018
Posts: 577
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This is what I use when parked. Takes about 10 seconds to put on/off and there is no way a kid or dog can send your rig rolling.
https://amazon.com/gp/product/B078Z9...?ie=UTF8&psc=1
- Richard
__________________
Richard & Denise
2019 VTDP 4310 K2
2019 Expedition, Nighthawk & AF1
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09-22-2020, 08:59 PM
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#12
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Senior Member
Join Date: Jan 2018
Posts: 3,009
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A couple of bucks at just about any hardware store.
[emoji40] 
__________________
2005 Monaco Knight 40PLQ; Cummins 8.3L ISC330, Pacbrake, Allison 3000, Roadmaster RR8R, ScanGauge D, 2004 Kawasaki Vulcan VN750(Geezer Glide) on a Versahaul carrier pulling a 2013 Kia Soul+; 2.0L, 6 speed Sport shifter(great car) on an American Car Dolly(great dolly.)
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09-23-2020, 06:41 AM
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#13
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Senior Member
Join Date: Apr 2018
Location: North Florida
Posts: 130
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All are great ideas and suggestions.. Thanks for the responses. I dread changing out the switch if the silicon does not work. Either way it will be a few weeks b4 i can do anything as I just had a neck fusion a couple weeks ago. This gives me time to figure out my plan.
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09-23-2020, 09:01 AM
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#14
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Senior Member
Join Date: Aug 2001
Location: North America somewhere
Posts: 30,903
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I use air tool oil, it has no additives to deteriorate seals and gaskets. Just a couple of drops seems to get air valves working properly again.
My air-powered step cover stopped working, a few RV repair shops attempted to get it worrking to no avail. A few drops of air tool oil into the air supply line, and it works great again.
__________________
2000 Winnebago Ultimate Freedom USQ40JD , ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA. " My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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Linear Mode
