DRAGGING BRAKES - HOT DRUMS - DEXTER EZ 4000 AXLES
Two year old V-Lite
We have a Infra-red Laser Temperature Gun [Harbor Freight $19.99] and monitor the tire/hub/brake temps. On one short trip we found the brake drum temps much higher that normal.
Pulling the 4 tires and hubs/drums we found the brake shoes hung up on the backing plates and one magnet arm frozen up. Taking everything apart we found no lubrication on the backing plate - brake shoe contact points. At a minimum, this lubrication is standard operating procedure in any drum brake application. Also, the brake shoes had scraped up the crappy paint on the backing plated causing them to stick.
The combination of rust and built up paint was the direct cause of the hangups.
SOLUTION: Every contact point was power wire brushed down to bare metal and everything cleaned. Pay attention to the contact points on the brake shoes, backing plates and magnet arm as well as pivot points.. All contact points were lubed with Lubriplate 3000 grease. A full assembly and test shows normal temps and no dragging.
Note: Proper brake tools are required and knowledge of drum brake assemblies.
2014 35 V-Lite 30WIKSS Platinum
Expedition 5.4, Hankook, Reese 1200 Round Bar, Trans-Go, Hadden, Curt Tri-Flex, 3.73 Posi-Traction