It's summertime. Rust isn't strong enough to lock up a truck.
Your brakes aren't releasing for some reason. Probably cammed over.
Back off your brake adjustment and the truck will probably move again.
If your lucky enough to make vehicle move with cammed over brakes. You'll start an axle fire.
Backing off your brakes would be the first thing to look at.
Brakes rusted to drums
Discussion in 'Experienced Truckers' Advice' started by AVL, Jul 13, 2020.
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If it cammed over, you're back on the base of the cam, the lowest possible point. It definitely wouldn't be locked up in that situation.
If the top shoe is free, the bottom shoe should be as well. The cam is symmetrical top and bottom.Dino soar and Rideandrepair Thank this. -
They hit the highest point on the cam. And lock up. And your stuck. Till they're backed off.
That's been my experience.
You can't get em past that high point.Rideandrepair, stillwurkin, flood and 1 other person Thank this. -
Disconnect slack adjuster from brake can. See if you can rotate s-cam, with leverage.
If you remove wheels. Hit the side of drum.
Let us know what works.
Good luckHopeOverMope and Rideandrepair Thank this. -
Back off the adjuster is the easiest and first thing. Unless the adjuster is froze. No need for disconnect. And you'll see the shaft rotate backwards.
Rideandrepair Thanks this. -
Rideandrepair Thanks this.
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Rust can stick a shoe to a drum. Sure.
But I don't see how it can keep a truck locked up. Not rust alone.Rideandrepair Thanks this. -
Boss drives a 6x2 Cascadia. One brake on the dead axle was rusted to the drum. He was empty, took off and saw smoke. Nice flat spots. Happened last week.
stillwurkin and Rideandrepair Thank this. -
Seen a seized clevis pin lock a drive wheel up. First Alison I'd ever been in so no idea how it normally felt. Drove it across the paved yard and into the shop with a locked wheel. Didn't really feel like anything was dragging either.
stillwurkin, Shawn2130 and Rideandrepair Thank this. -
Had it happen about a month ago on the spare truck. Drums close to the end of their useful life, and the s cam just a red hair from camming over. Forward, backward, no go. Beating on drums, shoes, trying to back off slacks, nothing. Just no leverage on the system with the cam in that position.
Brake job fixed that problem.stillwurkin and Shawn2130 Thank this.
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