Truckers, lets see your rigs!

Signature600 said:
240-250* on the gauge in 90* temperatures




I figured you'd tell me something like that...problem is my driver has a gauge and won't let me take it out now, so I'll have to get more cooler in it. I have asked him 5 times what happens if he backs down a gear and rolls on with no response.

Chris
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Shifting is hard
 
Rig Wrench said:
Shifting is hard
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Ya God forbid you miss a gear and have to drop two! I've seen guys slow down to 20ish miles an hour at the bottom of the grape vine in Cali just so they don't have to down shift going up....

I wonder how much of a difference in temp would input shaft speed make when under sustained heavy load? Could you're high temps possibly be related to the driver lugging it down too much before dropping a gear? I wouldn't think it'd matter since either way the gearbox is under load but that's starting to get into things that are above my pay grade.
 
Signature600 said:
240-250* on the gauge in 90* temperatures









I figured you'd tell me something like that...problem is my driver has a gauge and won't let me take it out now, so I'll have to get more cooler in it. I have asked him 5 times what happens if he backs down a gear and rolls on with no response.



Chris
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From the coal haulers, he said if the cooler isn’t mounted in the grill of the truck don’t waste your time. There isn’t enough air flow under the truck on a hard slow pull to make any difference. We used to mount them under the truck on these gliders and have since just used the bypass plates with the same results.
 
The heavy haul truck I still work on added a liquid to air with an electric fan between the posts of the rack and claim not to have been past 200 since.
They threw a fit when the truck was new because it got hot pulling the hill at e-town on I65.

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I've heard of guys doing some special coating (not microblue FFS) on all the gears and such. One guy has never seen above 130f without a cooler. He runs thinner oil too.
 
jfaulkner said:
From the coal haulers, he said if the cooler isn’t mounted in the grill of the truck don’t waste your time. There isn’t enough air flow under the truck on a hard slow pull to make any difference. We used to mount them under the truck on these gliders and have since just used the bypass plates with the same results.
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I can believe that. I've seen a couple transmissions lost due to air coolers being underneath. To me that's barely better than a water to oil cooler on top of the tranny. The kind with the shifter. No the other kind. You're a sick ****.

Ive heard heavy haulers - the REAL heavy kind - put them on the headache rack with a big fan or like you said in the grill. Nothing else works.
 
jfaulkner said:
From the coal haulers, he said if the cooler isn’t mounted in the grill of the truck don’t waste your time. There isn’t enough air flow under the truck on a hard slow pull to make any difference. We used to mount them under the truck on these gliders and have since just used the bypass plates with the same results.
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Copy that. I think we're talking 45mph or so, but I'll see how much room I have in the grill. That new big fan pulling air through it would be the best thing.

Thanks for all the advice guys. I'm sure we're not causing any major damage to the transmission, just my brain.

Chris
 
I used to pull a quad axle dump bucket with 39 ton plus in it thru the Adirondacks with the regular old barrel cooler. I didnt have the power allen has but I never saw much more then 10-15 degrees difference from coolant.
 
ktllc15 said:
I think we need to trade wagons! I don't have the ss one that's in my pic anymore. Needed a 53' for what I do so got a 53' sliding spread but it's white. I sure miss the stainless.
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You don’t want this one lol

If I’ve been working mine harder and in high ambient temps, it’s get 180-190ish. I’ve never seen it go above 200 at all so I essentially don’t pay attention to it. I’ve got an air cooler underneath.


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Damn gliders...damn thing has an aluminum radiator in it, with no options for direct replacement.

So, now I have to try and figure out what PACCAR changed in 2012. 2012 and down I can buy other options, 2013 up is just an aluminum replacement. WTF.

Chris
 
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