TECH TIPS

AUTOMATIC SLACK ADJUSTERS

Don Jones shares a Tech Tip on brake systems and automatic slack adjusters.

4 WAYS TO PREVENT TRUCK WHEEL-OFFS

The causes of wheel separation are well known. They include bearing failures; loose, broken, or missing wheel fasteners; damaged wheels, and to a lesser degree, failures of certain axle and suspension components. What's not as well understood is why these events continue to occur.

TIGHT BUT NOT TOO TIGHT WHEEL BEARING ADJUSTMENTS

Bearing failures are less common than fastener-related separations, 26%compared to 65%,say several investigative reports on wheel separations.

HOW TO PREVENT WHEEL-END FIRES

Millions of dollars’ worth of equipment and cargo goes up in smoke every year because of wheel-end fires, euphemistically called thermal events. You’ll see it on the news or social media, with dramatic footage of thick black smoke and flames consuming an entire trailer — and the tractor, if the driver can’t get the two units unhooked fast enough.

But determining how and where the fires start continues to frustrate the maintenance community, because the damage is often so severe, there’s little left pointing to a cause.

 

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