Jayco RV Owners Forum
 


Reply
 
Thread Tools Display Modes
 
Old 09-19-2016, 01:49 PM   #41
Senior Member
 
BuddyRay's Avatar
 
Join Date: Jan 2016
Location: Decatur
Posts: 621
Mike837,

The rate (frequency) at with the PWM controllers switch is so fast that it's irrelevant. There are basically 2 ways to lower DC voltage - resistance (which is unreliable, creates heat and wastes power) and PMW. Most PMW Circuits have a large capacitor on the output to smooth the DC back out - you can simply read voltage at the pin with a MultiMeter as long as there is load on it. Because I have 2 parallel 7 way plugs on the back, I was able to keep the brakes on the circuit while I measured the voltage.

Rusty,

That's sort of my plan - wait till winter and get the dealer to pull the brakes.

No guys - I haven't tried the brakeaway test yet - it was pouring rain coming home yesterday and it's back on the lot now. I should have tried that going out on Friday but we were in a hurry to get to the SP and get a good site.
I'm taking it out again in October, so we'll see then.
__________________

__________________
Buddy Ray - Atlanta
---------------
Jayco 2016 Eagle HT 26.5RLS
Ford 2016 F150 Lariat, 3.5L V6 Ecoboost
Max Tow Pkg, 36gal tank
Reese Sidewinder and Reese Titan 16k hitch
BuddyRay is offline   Reply With Quote
Old 09-20-2016, 08:41 AM   #42
Senior Member
 
Join Date: Apr 2014
Location: Calgary
Posts: 721
I have a similar issue with a 2014 Jayco 281BHS and a 2015 F250. If I pull the brakeaway cable the wheels lock up on gravel but applying full brakes using the integrated brake controller does not apply the brakes very hard. They do slow the truck and trailer down but not quickly. Braking is set to hard in the vehicle and the gain is pretty high 6 to 8 usually.

One thing I found that helped a little is to fully insert the 7 pin plug. I thought I was for the longest time as I was pushing it in very hard and then the latch catches. One day I sprayed some wd40 on it and pushed really hard and it went in an extra 1/4 inch. This allowed me to turn the gain down a little. Truck and trailer still stop well but I sure wish full brakes on the controller would apply full brakes on the trailer.

Still searching for answers on this one.
__________________

__________________
2014 Jayco Swift 281BHS, 300W Solar!
2015 F250 XLT 4x4 Crew Cab, Short box, 6.2 gas
Subaru297 is offline   Reply With Quote
Old 09-20-2016, 08:54 AM   #43
Senior Member
 
Join Date: Sep 2013
Location: South Texas
Posts: 3,955
I've seen some chatter that Ram Truck's integrated brake controller, at low speeds (below 30?) doesn't apply full brake voltage? I wonder if the Ford is programmed like this as well?

If that's the case, you'll never achieve lockup as we are accustomed to testing it. In many brake controller instructions, it says to travel on smooth, dry pavement at 20 mph, and apply the manual brake controller fully. Increase gain until trailer tire lockup is achieved, and then back off slightly. If the controller is designed/programmed to decrease braking output at low speeds, you'll never be able to achieve lockup with that method. OTOH, if you pull the emergency plug, you're getting unbridled 100% voltage immediately.

It kind of makes sense if you think about it. An example can be found on 18-wheelers. If a tractor is towing an unladen trailer, you see the trailer tires lock up all the time at low speeds. Perhaps the integrated brake controller's programming is trying to avoid this? It could sure wear out tires fast if they were locking up at every stop.

Not saying it's a good idea, but I can see the logic in programming it this way...

Of course, I'm by no means an expert, but I did stay at a Holiday Inn Express last night! LOL!!
__________________


2014 Jay Flight 28 BHBE
2015 RAM 2500 6.4L HEMI, Tradesman 4x4, 3.73
Blue Ox SwayPro (BXW 1503)

Upgraded from an REI internal frame backpack and a Eureka 1/2 dome tent!
Camper_bob is offline   Reply With Quote
Old 09-20-2016, 09:32 AM   #44
Senior Member
 
mike837go's Avatar
 
Join Date: May 2015
Location: Campbell Hall
Posts: 2,746
All I know about is that I can feel when the brake controller has ramped up more braking than I am calling for from the tow's brakes. And when the breakaway was accidentally pulled, it was darn near impossible to move the rig.


But, then again I am pulling 'only' about 5,000#. A toy compared to your 5'r. Any brake failure will cause 'undue stress' on my TV's brakes. You have to worry about your TV getting seriously overwhelmed. I understand your concern to get it all operating safely.
__________________
TT 2015 19RD "TheJayco"
TV 2003 F-350 "Montblanc" - Housebroken chore truck


Sitting in The Cheap Seats.
And proud of it!
mike837go is offline   Reply With Quote
Old 09-20-2016, 11:19 AM   #45
Senior Member
 
Join Date: Apr 2014
Location: Calgary
Posts: 721
Quote:
Originally Posted by Camper_bob View Post
I've seen some chatter that Ram Truck's integrated brake controller, at low speeds (below 30?) doesn't apply full brake voltage? I wonder if the Ford is programmed like this as well?
I have heard this of the Fords too and have tested this theory going around 50km/h. No change in my case. Still weak braking.

Cheers
__________________
2014 Jayco Swift 281BHS, 300W Solar!
2015 F250 XLT 4x4 Crew Cab, Short box, 6.2 gas
Subaru297 is offline   Reply With Quote
Old 09-20-2016, 06:29 PM   #46
Senior Member
 
Join Date: Jun 2015
Location: smithville, ont.
Posts: 1,647
Yep weak braking on 2012 f350.
I pull at 10. I wish I could turn it up to 14.
I drive cautiously...if I have an emergency stop, I'm not stopping.
__________________
2016 North Point 341RLTS
520watts of solar. Morningstar MPPT
2017 F-350 Platinum CC SRW
klassic is offline   Reply With Quote
Old 10-26-2016, 09:01 PM   #47
Senior Member
 
BuddyRay's Avatar
 
Join Date: Jan 2016
Location: Decatur
Posts: 621
OK, this thread is getting pretty old - but I thought I would come back and update.

My brakes are working better.
I have no idea why - but over the last 3 months they have been stronger every time I've taken the rig out.
This last weekend I actually found I had to turn them down from a 10 to 8.

I figure there are a few possibilities here:
1) The brakes were REALLY out of adjustment from the factory and the automatic adjustment took a long time, working in small increments every time I stopped, to bring the brakes into adjustment.
2) There was a small amount of bearing grease on the shoes, and it's wearing off.
3) The Ford Brake controller is "learning" ? (not likely)
4) There really was an electrical or mechanical problem and a wandering evangelist laid hands on my trailer when I wasn't looking and shouted "HEAL".

Don't worry - I still plan to have the dealer do a through inspection when I take the rig in for some work in December.
But for now - the electric brakes are working fine!
__________________
Buddy Ray - Atlanta
---------------
Jayco 2016 Eagle HT 26.5RLS
Ford 2016 F150 Lariat, 3.5L V6 Ecoboost
Max Tow Pkg, 36gal tank
Reese Sidewinder and Reese Titan 16k hitch
BuddyRay is offline   Reply With Quote
Old 11-05-2016, 10:28 AM   #48
Member
 
Join Date: Dec 2015
Location: Fresno
Posts: 45
I have a 2015 Silverado 1\2 ton 4x4 with the factory brake controller and 2015 26RKS. The dealer set the controller at 3 it did nothing. I set it to 10 and it worked a little. I read in the axle owners manual that it can take 1000 miles or more for the brakes to fully seat and reach full stopping capacity. For about the first three trips I had to keep turning down my controller until it got to 6.5 and it works great, its been there quite some time now. I've adjusted it up and down and always end up back at 6.5. Last trip I had to make a very hard stop and was amazed at how fast the rig stopped. I'm very happy with the factory controller it just took some time for the trailer brakes to seat in.
don648 is offline   Reply With Quote
Old 11-05-2016, 10:55 AM   #49
Senior Member
 
BuddyRay's Avatar
 
Join Date: Jan 2016
Location: Decatur
Posts: 621
Don,
I guess I should 'read the manual' but as a lifelong computer nerd that's usually the last resort

But I'm glad you pointed this out. I'm just past my first 1,000 miles so this probably explains why my brakes are working so much better.


Buddy Ray - Atlanta
---------------
Jayco Eagle HT 26.5RLS
Ford F150 Lariat, 3.5L V6 Ecoboost
Max Tow Pkg, 36gal tank
Reese Sidewinder and Reese Titan 16k hitch
__________________
Buddy Ray - Atlanta
---------------
Jayco 2016 Eagle HT 26.5RLS
Ford 2016 F150 Lariat, 3.5L V6 Ecoboost
Max Tow Pkg, 36gal tank
Reese Sidewinder and Reese Titan 16k hitch
BuddyRay is offline   Reply With Quote
Old 11-05-2016, 11:11 AM   #50
Senior Member
 
Join Date: May 2016
Location: Way down here........FL
Posts: 612
Quote:
Originally Posted by BuddyRay View Post
Don,
I guess I should 'read the manual' but as a lifelong computer nerd that's usually the last resort

But I'm glad you pointed this out. I'm just past my first 1,000 miles so this probably explains why my brakes are working so much better.


Buddy Ray - Atlanta
---------------
Jayco Eagle HT 26.5RLS
Ford F150 Lariat, 3.5L V6 Ecoboost
Max Tow Pkg, 36gal tank
Reese Sidewinder and Reese Titan 16k hitch
Buddy Ray,

Don't you think with the miles from the factory to where you are your brakes would have been (wore in)
My Jayco fifth wheel does NOT have good braking at all!!
I am exactly like Klassic, it will NOT stop & if you ever have to really quick.........it is NOT going to stop.
If I can afford to do it, I will install disc brakes on it so it will STOP like it should.
That's what I hope to do soon........

Jack
__________________

jasum is online now   Reply With Quote
Reply

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


» Virginia State Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -6. The time now is 04:52 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2002-2016 Social Knowledge, LLC All Rights Reserved.