Post your pneumatic and tanker pics.

Yup, it's kinda slow this week but normally it's balls to the wall.

 

How do u make sure that your pneumatic trailer is empty without building air pressure back up opening up the product lines and waiting for air pressure to drop....or using rubber mallet... Just looking for new ways....I'm new in this field

 

good quesiton, like to know that myself. that's how i typically do it. but always looking for other thoughts/ways...

and this is what i'm driving and pulling for now...


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Build the pressure back up while running the vibrators, then open each hopper one by one until all product is gone. The extra 5 minutes it takes can be the difference between a reload and a wash out.

 

How can u be 100% sure it's empty...I be listing for sir but I cant hear it all the time...and then I have the nylon hose and not the rubber one so its always jumping or moving...the only way I know how to do it is open each hopper go to the back and step on the hose to see if product is flowing through or not

 

If you are pressured up when it's empty the sound will change, it will start to get a deep echoing. When cleaning out I usually pressure up to 15 pounds and shut off the top air. Open the product line then open one hopper. The sound will change as it empties out. You may have to run all the air out and then build up pressure again and then go to the next hopper and do it all over again. Once you've done it for a while you'll notice the sound changes as the hopper goes empty.

 

Okay I will listen for the sounds a lil more closely... I know when its pressured up and the vibration means its product...its just hard to tell when its empty without walking on the hose...which I'm scared will bust one day

 

You don't have to worry about the hose busting unless it has serious damage to it. They're rated for far more pressure than you could ever have in it. Another trick for knowing when you're empty is to watch your gauges. The moment the hopper empties out, both line and tank gauges will start dropping fast.

 

I tried a little trick today of building the air pressure back up after it drops down to 0 and let it drop back down again...it worked out OK

 

Also, beware of letting your tank pressure run down to zero after the hopper goes empty. That's a whole lot of air coming out, and if you're blowing into something that has dust bags for dust control, you can blow them right off. We used to unload directly into railcars a lot where that was the setup.

It's also faster to get that product valve shut as soon as it empties and move to the next hopper instead of having to build air pressure again for each one. Sometimes you don't catch it in time, but if you can it's good.

Beware of sitting in the truck while you're unloading. Lots of guys do it, but you better be paying attention. We had a guy blow several tons of product onto the ground at a customer. A connection had failed and he could not see it from his position reading in the driver's seat. That can be a job-ending big $ cleanup.