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02-27-2015, 02:48 PM
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#1
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Junior Member
Join Date: Jun 2011
Posts: 12
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2012 300MP Contaminated Brakes
We have a 2012 300MP that we purchased new. The brakes never stopped well from day 1 but we blamed the tow vehicle and heavy weight of the combination.
We upgraded tow vehicle brakes and are using factory Ford brake controller.
We have about 4000 miles on the trailer in the last 3 years so it was time for a bearing pack and brake inspection. The trailer is equipped with Dexter Nev-R-Adjust brakes and EZ-Lube zerk fittings.
We have never added grease to the zerk fittings - favoring hand packing and inspection.
Today was bearing service day. To no surprise 3 of the 4 brakes were contaminated with grease. The grease (from the factory) was much thinner than the Kendal L427 that we replaced it with (Kendal L427 is on the list from Dexter).
So fix is to completely replace 3 of the 4 brake assemblies.
This post is an FYI for owners that believe their trailer brakes are not adequate - CHECK THEM ASAP even if the trailer is NEW. 
Pictures attached for reference. 1 Pic with good vs. bad on the passenger side and a second pic of both bad ones on the drivers side.
__________________
2012 Raptor 300MP
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02-27-2015, 04:13 PM
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#2
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Senior Member
Join Date: May 2010
Location: Rochester, NY
Posts: 1,605
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It is amazing how lacking QC is when building rv trailers. Likely this is a lippert or dexter issue, but still.
Makes me think I should pull my drums as well this spring.
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02-27-2015, 04:17 PM
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#3
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,314
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The issue will be at the plant that assembles the axles, not Keystone.
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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02-27-2015, 04:25 PM
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#4
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Senior Member
Join Date: Mar 2014
Location: colorado
Posts: 209
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I had the same issue last year ,replaced all 4 brakes and seals.
__________________
 2007.5 Silverado 3500 HD,DRW, LTZ red, afe II airbox w/ torque tube, transferflow 56 gal replacement tank,
banks speed brake, transgo jr shiftkit, aux trans cooler, b&w companion hitch.
2010 Fuzion FZ 302 has 12ply F-loads, Dexter ez-flex w/ wet bolts, 6 volt Deka GC 15 batteries, 1 gen battery, solarpanels, leds inside, replaced clear textured door glass with tinted, 87 gallons of loc-tite.
Decals removed.
AKA CONFUZION / PORH HONKY.
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02-27-2015, 05:24 PM
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#5
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Site Team | Emeritus
Join Date: Jan 2014
Location: Western PA
Posts: 2,732
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bowwow, Did you ever add grease using the zerk fittings?
__________________
2013 RAPTOR 300MP w/Rear Patio Deck NO Folding Side Ladder 
2013 Silverado 3500HD LTZ CC LB 4X4 DRW
Duramax 6.6L Turbo Diesel; Allison Trans
Reese 20K; Carlisle Radial Trail RH/HD; TPMS (12 Tires)
Veteran 
PSU (GO LIONS) 
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03-01-2015, 11:31 AM
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#6
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Senior Member
Join Date: Mar 2014
Location: colorado
Posts: 209
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Quote:
Originally Posted by PARAPTOR
bowwow, Did you ever add grease using the zerk fittings?
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Yes, I did. Very little since it was a fairly new rig. I had seals 2 leaking grease. The main issue was when I adjusted the brakes one day I found loose brake parts tumbling around .
__________________
2007.5 Silverado 3500 HD,DRW, LTZ red, afe II airbox w/ torque tube, transferflow 56 gal replacement tank,
banks speed brake, transgo jr shiftkit, aux trans cooler, b&w companion hitch.
2010 Fuzion FZ 302 has 12ply F-loads, Dexter ez-flex w/ wet bolts, 6 volt Deka GC 15 batteries, 1 gen battery, solarpanels, leds inside, replaced clear textured door glass with tinted, 87 gallons of loc-tite.
Decals removed.
AKA CONFUZION / PORH HONKY.
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03-01-2015, 09:15 PM
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#7
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Senior Member
Join Date: Jul 2013
Location: Box Elder
Posts: 2,907
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I would recommend replacing all four backing plate/brake assemblies, not just three. When we had a similar experience with ours, we also had to have the drums turned, as the greased brakes and magnets had caused grooving on the brake and magnet areas of the drums. If you do get the drums turned, most auto shops are not set up to turn the drums magnet surface, so you will have to make some calls. It is amazing how much better the brakes are once all new parts are installed and the drums are freshly turned.
__________________
Bob & Becky
2012 3402 Montana
2012 Chevy 2500HD D/A CC
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