How Do You Know When to Replace Shoes on Drum Trailer Brakes

Question

Question:

Im getting ready to repack the wheel bearings on my RV which has 7k axles with 12 x 2 electric drum brakes. How do I know when it is time to replace the shoes?

asked by: Todd

0

Expert Reply:

On many drum brakes there are wear indicators at the pad material on the shoes. If the pad material is riveted on and you have reached the rivets then it is time to replace them. If you have the brakes adjusted out all the way and the braking is still weak then it is likely time to replace them.

If you are having any specific braking issues let me know and I can determine what the likely cause is.

expert reply by: Michael H

0

Brian

7/17/2024

does one replace shoes on trailers, or the whole assembly?

Jesse M.

7/17/2024

@Brian it is possible to replace just the shoes. Generally, I recommend that you replace the whole assembly. Replacing shoes can be trick and time consuming. In most cases, the cost of brake shoes is not far from the cost of the whole assembly. So, you can save a lot of time and headache by replacing the whole assembly and it won't cost you too much more.

Answer 1

Hello John, thanks for reaching out. For the wet bolts you can measure the overall length or the length not including the head. Honestly when replacing this stuff, the bolts are going to be a standard length and diameter. Typically I would not even…

view full answer...

Answer 2

To chose the correct Road Armor kit you'll need to measure the distance between the centers of the lower bolt holes that attach to the shackles as well as the drop from the center of the top bolt hole to the centerline of the two lower bolt…

view full answer...

Answer 3

Hi Julie, UC3 is added on to this part number because we offer parts with the same part numbers from multiple manufacturers so a code or extra numbers get added on to differentiate the parts. If you scroll down on the #8-388-80UC3 page you'll see…

view full answer...

Answer 4

The part of a hub/drum assembly that makes contact with the electromagnet, the armature surface, cannot be machined. If the surface is deteriorated you'd do well to replace that hub. The link provided will show you all hub/drum assemblies which…

view full answer...

Answer 5

Hey Dan, as long as the outer bearing number you have now has an inner diameter of 1.25 inches like what comes with the #8-407-5UC3-EZ this will work for you. Do you have a 02475, 14125A, 15123, or a 387A? If so then it is same inner diameter and…

view full answer...

Answer 6

When it comes to 10 x 2-1/4 inch brake assemblies there are a few things you need to consider before purchasing. The first you will need to know is if you have electric or hydraulic brakes on your trailer. There is also a difference in the weight…

view full answer...

Answer 7

The correct hub and drum assembly replacement for your Lippert 4,400 lb axle is the #8-407-5UC3-EZ. This comes with bearings and a grease seal. If you need brakes as well you can use the #LC66WD, or for self-adjusting brakes #K23-478-479.

view full answer...

Answer 8

The MORryde Cushioned 5th Wheel Pin Box #MR84VR weighs right at 190 pounds. Due to this, it will ship freight. Just in case you needed, this is designed to fit 14,000 to 18,000 pound trailers with the Lippert 1621 and 1621HD pin boxes.

view full answer...

Answer 9

The manufacturer and model number of the pin box is usually printed on a sticker or stamped into a plate or directly into the metal of the pin box. If you can't find that, the manufacturer of your 5th wheel should be able to tell you which pin…

view full answer...

Answer 10

I'm glad you asked. Our etrailer brand brakes are holding up very well. We actually have an agreement with the same company who manufacture's Lippert's OEM brake assemblies, so our brakes are exactly the same as the brakes that come on…

view full answer...

Answer 11

If you already have brake drums you will not have to replace them unless they are damaged or became overheated and have discoloration on the inside armature surface where the magnet rides, grooves in the armature surface, or severe wear where the…

view full answer...

Answer 12

Typically it's best to replace both brake assemblies at the same time since if one is worn out the other probably is but if for some reason one got damaged and the other was still in good shape you could replace them individually. For example for…

view full answer...

How Do You Know When to Replace Shoes on Drum Trailer Brakes

Product Page this Question was Asked From

Continue Researching