www.PNWJeep.com

Pacific NorthWest Jeep forum
It is currently Thu Sep 20, 2018 9:39 pm

All times are UTC - 8 hours




Post new topic Reply to topic  [ 27 posts ] 
Author Message
 Post subject: trailer brakes
PostPosted: Sun Feb 15, 2015 10:43 pm 
Offline
Pimp
User avatar

Joined: Fri Aug 04, 2006 9:08 am
Posts: 5842
Location: North Bend
Vehicle: 98-TJ
A year or so ago my trailer brake controller started flashing NC for no connection intermittently. All my lights and trailer brakes always worked so I had been ignoring it. The last two times I have used my trailer the brakes have not worked 90% of the time, even thought the frequency of the NC has not increased.

I took my trailer brakes/hubs apart to service them before Moab. I am now wondering how you tell if the brakes/magnets/drums are worn out? The trailer is 11 years old, I am wondering if I should just swap out the backing plate/brake assemblies to be safe? Or if they look fine and I should be looking at a wiring issue?

I have zero experience with working on or servicing trailer brakes before.

I will add some pics from my phone.

Image

Image

Image

Image

_________________
98 - TJ


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Sun Feb 15, 2015 10:57 pm 
Offline
Pimp
User avatar

Joined: Fri Aug 04, 2006 9:08 am
Posts: 4747
Location: In your brain
The brakes don't look to bad. Use your normal brake judgement on the shoes and drums. I would check the wiring under the trailer for a broken wire. My trailer did the same thing awhile ago I found broken wires to the rear axle... Trailer brake wiring is pretty simple power on one side of the magnet ground on the other.

_________________
90 Jeep Comanche 4.0L AW4, 231 2 low Tom wood's SYE, Waggy Dana 44's 5:13 Detroit Clayton's long arms, 6" lift, 35" Maxxis Creepy's, Trail-Ready Beadlocks, Custom bumpers, 3x6 box tube rock rails,LOT'S OF BODY DAMAGE
04.5 Chev HD2500 ext.cab longbed, Dirtymax, Duramaxtuner ECM & Edge CTS moniter
Auburn Car Repair & Offroad. 253-939-5019


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Sun Feb 15, 2015 11:08 pm 
Offline
Dragon Wang
User avatar

Joined: Fri Aug 04, 2006 9:08 am
Posts: 6034
Location: Merica
Vehicle: Aluminum Falcon
Since you have it all apart, definitely clean, inspect, and repack all the bearings with new seals. Scuff the magnet surfaces on the drums with a scotch-brite pad on a die grinder. To check the magnets is pretty simple. Actuate the manual lever on your brake controller and stick a pair of vice grips to the magnet. If they don't stick, you need to check the wiring or buy new magnets :) If your brake controller isn't cooperating you can just jumper 12 volts to the brake signal wire in the pigtail. As far as the NC on your brake controller, almost all trailer wiring problems are ground related. Check the ground wire in the pigtail on both the truck and trailer side. Each side should have a dedicated ground wire straight to the frame, they may need the contacts to be cleaned up.

Proper trailer wiring diagram :thumbsup:
Image

_________________
Myke8675309 wrote:
Advantage Johnson :f2:


www.instagram.com/pnwjeep_com
www.instagram.com/pnwjeep_yj
www.instagram.com/offtrackmotorsports


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Mon Feb 16, 2015 2:23 am 
Offline
whew, finally
User avatar

Joined: Wed Dec 01, 2010 1:19 pm
Posts: 510
Location: Puyallup & Ronald
6 Robbles and others sell loaded backing plates for around $60 per wheel.

I agree you should do seals and bearings while it is apart....cheap insurance.

Also agree NC is a ground issue. If the factory trailer wiring has never been messed with, it might not have a dedicated frame ground. On the trailer side I would add a ground stud/bolt to the frame. Then find the ground wire, snip, and connect both ends to it. A new male end on the trailer harness would be a good idea too as they get corroded quick inside.

_________________
78' FJ55...family rig
84' CJ-7...wheeler
17' Dodge 3500...hauler


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Mon Feb 16, 2015 8:08 am 
Offline
Pimp
User avatar

Joined: Fri Aug 04, 2006 9:08 am
Posts: 5842
Location: North Bend
Vehicle: 98-TJ
Thanks guys. New seals and grease will happen for sure. I will have to get the wife out there later to help mess with the magnets and wiring. I miss the days of being able to lock up the trailer brakes with out trying.

_________________
98 - TJ


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Tue Feb 17, 2015 7:00 pm 
Offline
Freedom Steak!
User avatar

Joined: Mon Apr 27, 2009 5:07 pm
Posts: 2887
Location: Covington
Vehicle: 99 xj
Pretty common for the wires inside the tube from one side to the other to rub through and screw things up too.

_________________
Wang90XJ wrote:
Point me to the Dongs :brows:


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Tue Feb 17, 2015 7:08 pm 
Offline
Pimp
User avatar

Joined: Fri Aug 04, 2006 9:08 am
Posts: 5842
Location: North Bend
Vehicle: 98-TJ
I am tempted to just run new wiring and call it good for another 10 years?

Does anyone know if you can get the 7 wire harness local? I am seeing it online by the foot.

http://www.ebay.com/itm/7-Conductor-Wir ... bd&vxp=mtr

_________________
98 - TJ


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Tue Feb 17, 2015 7:25 pm 
Offline
Pimp
User avatar

Joined: Fri Aug 04, 2006 9:08 am
Posts: 4747
Location: In your brain
6 robblees should have it...

Edit...
http://www.sixrobblees.com/products/det ... &n=75422a5

_________________
90 Jeep Comanche 4.0L AW4, 231 2 low Tom wood's SYE, Waggy Dana 44's 5:13 Detroit Clayton's long arms, 6" lift, 35" Maxxis Creepy's, Trail-Ready Beadlocks, Custom bumpers, 3x6 box tube rock rails,LOT'S OF BODY DAMAGE
04.5 Chev HD2500 ext.cab longbed, Dirtymax, Duramaxtuner ECM & Edge CTS moniter
Auburn Car Repair & Offroad. 253-939-5019


Last edited by comanchekid on Tue Feb 17, 2015 7:29 pm, edited 1 time in total.

Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Tue Feb 17, 2015 7:27 pm 
Offline
Never go full Rich-ard
User avatar

Joined: Fri Aug 04, 2006 9:08 am
Posts: 35906
Location: Auburn, WA
Vehicle: V8 TJ
Six robblees should sell it. They deliver to me.

_________________
Auburn Car Repair & Offroad, for ALL your offroad needs! 253-939-5019
http://www.auburncarrepair.com
Quote:
Overkill is under-rated

Quote:
When times get tough fat people get thin, thin people get dead.


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Mon Mar 09, 2015 3:17 pm 
Offline
Pimp
User avatar

Joined: Fri Aug 04, 2006 9:08 am
Posts: 5842
Location: North Bend
Vehicle: 98-TJ
All wiring has been replaced and is correct and working.

My issue now seems to be the left brake. I am currently just powering the brakes with a battery on my trailer. The right side locks up instantly (spinning by hand). The left side gets harder but will not lock up. Both sides have been adjusted with the drum on through the hole in the back and are just back off a little from tight.

Do the magnets wear out? Working but not putting out full force? What else would make one side work but not work well? If i tighten the left brake as tight as I can with the adjuster it seems to hold pretty tight.

_________________
98 - TJ


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Mon Mar 09, 2015 3:53 pm 
Offline
Pimp
User avatar

Joined: Fri Aug 04, 2006 9:08 am
Posts: 5842
Location: North Bend
Vehicle: 98-TJ
Unless someone has a great idea, here is my currently plan of attack.

Grind down the high spot that goes all the way around the drum. I think it might be high enough that the magnet only grips well on it and not the rest?

If not I am ready to do my original plan of all new complete backing plates and drums.

Image

_________________
98 - TJ


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Mon Mar 09, 2015 3:58 pm 
Offline
I like the cloven hoof
User avatar

Joined: Tue Jun 10, 2008 11:59 am
Posts: 3400
Location: Snoqualmie, WA
Vehicle: '05 LJ
It looks like the brakes are unique LH and RH so the magnet forces the pad into the drum. Maybe your LH side has a RH assembly? This would give you a little friction from teh magnet but none from the pad.

_________________
Larry wrote:
Most Jeep guys are cheap asses...


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Mon Mar 09, 2015 8:39 pm 
Offline
you guessed it, web wheeler

Joined: Fri Nov 07, 2014 5:34 pm
Posts: 33
I've fought a lot of trailer brakes, and wasted a lot of time doing so. IMO I would do all new and personally I always go with dexter on my stuff. We own a lot of trailers, at least 14 off the top of my head, probably more then half with brakes, enclosed & open car, utility, boat, and so on, I've come to the point that if I'm working on this it's all new, it's my trailer and the reason I'm towing it is because we're going for fun. It sucks ass with broken trailer on the road. Shop around after you know all your part numbers. E-Trailer online is a good start, I've bought from them a few times. Six robbers is also fine if your in a hurry, or stuck in Anchorage! :bang:


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Mon Mar 09, 2015 9:04 pm 
Offline
whew, finally
User avatar

Joined: Tue Nov 18, 2008 9:26 pm
Posts: 903
Location: Not at Paul's Mom's. That place is packed!!
Vehicle: 89 XJ
Magnets can wear out. That drum could be the culprit though. Here in PDX, Potter Webster can machine the magnet surface. The other option is new stuff. Loaded backing plates and drums with bearings should be $50-60 each.

_________________
Jeep
Suburban
Subaru
Nash
Scorpio


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Wed Mar 11, 2015 9:01 am 
Offline
Pimp
User avatar

Joined: Fri Aug 04, 2006 9:08 am
Posts: 5842
Location: North Bend
Vehicle: 98-TJ
All new everything should be waiting for me at Napa when I get off work. :spend

_________________
98 - TJ


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Wed Mar 11, 2015 9:47 am 
Offline
Medium Pulp
User avatar

Joined: Mon Jan 19, 2009 2:49 pm
Posts: 2589
Location: washington
ryan2l wrote:
All new everything should be waiting for me at Napa when I get off work. :spend


Napa better price than 6 Robblees?

_________________
Bryan Peterson | WOHVA | PNWJeep | Eldorado Dust Devils


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Wed Mar 11, 2015 10:02 am 
Offline
Pimp
User avatar

Joined: Fri Aug 04, 2006 9:08 am
Posts: 5842
Location: North Bend
Vehicle: 98-TJ
dirk wrote:
ryan2l wrote:
All new everything should be waiting for me at Napa when I get off work. :spend


Napa better price than 6 Robblees?


Went for convenience over price. Stopped on my way to work and dropped off my old stuff and told them I would be back this afternoon to pick up all new stuff.

_________________
98 - TJ


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Fri Mar 13, 2015 3:03 pm 
Offline
Medium Pulp
User avatar

Joined: Mon Jan 19, 2009 2:49 pm
Posts: 2589
Location: washington
6 Robblees just quoted me...

Loaded backing 55
Loaded drum with bearings seals cap & lugs 75

Is that close to what you paid?

Bearing kit (bearings seals lug cap) 40 per axle

My magnet surface is pretty grooved.

_________________
Bryan Peterson | WOHVA | PNWJeep | Eldorado Dust Devils


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Fri Mar 13, 2015 3:13 pm 
Offline
Pimp
User avatar

Joined: Fri Aug 04, 2006 9:08 am
Posts: 5842
Location: North Bend
Vehicle: 98-TJ
dirk wrote:
6 Robblees just quoted me...

Loaded backing 55
Loaded drum with bearings seals cap & lugs 75

Is that close to what you paid?

Bearing kit (bearings seals lug cap) 40 per axle

My magnet surface is pretty grooved.


I think I paid $291 out the door for the loaded backing plates and drums with all bearings/cups/seals for the one axle.

I had already done the axle with no brakes.

_________________
98 - TJ


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Wed Mar 18, 2015 5:37 pm 
Offline
Pimp
User avatar

Joined: Fri Aug 04, 2006 9:08 am
Posts: 5842
Location: North Bend
Vehicle: 98-TJ
All new stuff is on and wired. Both sides appear to be working, just need to take it off the jack stands and make sure I can lock them up when driving.

Should have just replaced it all the first time like I was going to. Stupid brain telling me not to waste money.

_________________
98 - TJ


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Wed Mar 18, 2015 5:41 pm 
Offline
Medium Pulp
User avatar

Joined: Mon Jan 19, 2009 2:49 pm
Posts: 2589
Location: washington
I talked to M today and now have all new stuff coming from 6 Robblees tomorrow :spend

_________________
Bryan Peterson | WOHVA | PNWJeep | Eldorado Dust Devils


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Wed Mar 18, 2015 7:22 pm 
Offline
Pimp
User avatar

Joined: Fri Aug 04, 2006 9:08 am
Posts: 5842
Location: North Bend
Vehicle: 98-TJ
:mad:

Got it all done and then my kid slammed into it with his power wheels jeep and crushed the front marker light (the only lights I didn't change because I could not find the same type to replace them with).

Can't win with this thing. :roflmao:

_________________
98 - TJ


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Wed Mar 18, 2015 7:26 pm 
Offline
Pimp

Joined: Tue Nov 18, 2008 10:47 am
Posts: 6993
Location: Beaverton, Oregon
Vehicle: Tee-jay
Make sure you do a good break in, or else they won't work worth a damn.

_________________
FullStack MotorSports. For all levels of performance.


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Tue Feb 27, 2018 1:21 pm 
Offline
Im not a player, I just post alot.
User avatar

Joined: Thu Aug 20, 2009 6:33 pm
Posts: 1912
Location: Kirkland
Vehicle: 98 TJ 96 Jeep Grand Cherokee
"97 Jeep Grand Cherokee Rolled"
Need help with my brakes not locking up.

I picked up a 2016 32 foot trailer. I repacked all the bearings and replaced the seals, the shoes drums and magnets looked OK. The wiring had lots of briefcase connectors so I replaced them with weatherproof butt connectors. It’s a triple axle with brakes on the front two wheels and rear two wheels. I can get them to lock up from a stand still dragging the trailer forward on smooth concreat but I can’t get them to lock up at speed on the road even at gain 10. Using only the brake controller my 20 foot trailer slowed my truck much faster and will lock up if I use to much gain. The 32 at full gain slowes the truck but maybe 40% of the power of my 32 foot. How do I get the 32 to Stop like the 20? Rich don’t say cut off 12 feet.

_________________
96 ZJ V8, HP44, Ultimate 8.8, 242tc swap, Tom woods shafts, long arms, 35s...
98 TK (TJ) Artec swap kit JK rubi 44s, 513s gears, long arms, highline aluminum gen right armor, 35s...

Timbertamers.org
#243

Buy a car from me at Lee Johnson, Chevrolet, Mazda, and Kia.


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Mon Mar 05, 2018 10:12 pm 
Offline
Im not a player, I just post alot.
User avatar

Joined: Thu Aug 20, 2009 6:33 pm
Posts: 1912
Location: Kirkland
Vehicle: 98 TJ 96 Jeep Grand Cherokee
"97 Jeep Grand Cherokee Rolled"
Any advice?

_________________
96 ZJ V8, HP44, Ultimate 8.8, 242tc swap, Tom woods shafts, long arms, 35s...
98 TK (TJ) Artec swap kit JK rubi 44s, 513s gears, long arms, highline aluminum gen right armor, 35s...

Timbertamers.org
#243

Buy a car from me at Lee Johnson, Chevrolet, Mazda, and Kia.


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Tue Mar 06, 2018 4:29 pm 
Offline
Pimp
User avatar

Joined: Wed Nov 19, 2008 6:13 pm
Posts: 2794
Location: SE Seattle/Renton, WA
How well did you adjust the brakes when you put everything back together? Considering most trailer brakes aren't self adjusting this is something that needs to be set up correctly. You can usually adjust them up until they will stop the wheel from turning then back off which is usually about 3-4 clicks to a point where there is a light drag. Then adjust your brake controller gain from there too.

Is your controller rated for multiple axles or is it a cheap-o that can only handle one axle and not two? Also is it adjusted correctly? This is commonly overlooked when trading up in trailer size. I know the built in controller in our Dodge has a few different settings depending on the type of brakes you have on the trailer. It was originally set to light electric and people complained of lack of trailer stopping power. Once set correctly our 24' box trailer could easily pull our truck to a stop when loaded even with the gain turned down.


Top
 Profile  
 
 Post subject: Re: trailer brakes
PostPosted: Mon Mar 12, 2018 3:03 pm 
Offline
Dragon Wang
User avatar

Joined: Fri Aug 04, 2006 9:08 am
Posts: 6034
Location: Merica
Vehicle: Aluminum Falcon
Also worth mentioning what type of controller you're using. The inertia activated ones will only brake as hard as your inertia, so it could be a setup issue.

_________________
Myke8675309 wrote:
Advantage Johnson :f2:


www.instagram.com/pnwjeep_com
www.instagram.com/pnwjeep_yj
www.instagram.com/offtrackmotorsports


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 27 posts ] 

All times are UTC - 8 hours


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group