How to uncouple a trailer... for dummies
Discussion in 'Experienced Truckers' Advice' started by Kyle G., Aug 25, 2020.
	
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	I would bet that dump valves and trolley brakes are 2 items left off of most tractors in large fleets. The number of those drivers who use both incorrectly, going merrily down the road with the suspension in the lowered(dump) mode destroying the entire driveline, and then slowing an 80K truck on dry pavement and flat spotting the tires was way more than their fleet maintenance departments could stomach.Lumper Humper, alds, Bean Jr. and 3 others Thank this.
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	Common for the mega fleets. Big ole' Marten Transport didn't have an air dump on their Trucks.Bean Jr., Kyle G. and LtlAnonymous Thank this.
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	Or if they still have it there's no applying 10-15 it's either 0 or full on lock em up LolD.Tibbitt, Kyle G. and LtlAnonymous Thank this.
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	I drove for 36 years and never "had" to use a Johnny bar, did I, yes on occasion or pretriping or hooking a set.Bean Jr., 650cat425, LtlAnonymous and 1 other person Thank this.
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	Pulling someone else's wagon Lol gets used all the time. Why use my drums
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	My 2020 Cascadia doesn't have an air dump. I hate it!!Kyle G. Thanks this.
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	Yeah, no Johnny bar on marten trucks either.
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	Wow, ok. I must be living in a cave, I had no idea so many trucks didn’t have a dump valve. Pardon my ignorance on that. daf105paccar, D.Tibbitt, MACK E-6 and 7 others Thank this.
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