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Boom at rear of car on WW 1.0

washnvac

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Is there a way to make the boom go all the way down to the bottom prox at the rear of the car; like it does at the front?
 

Greg Pack

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Are you talking about HP spray or presoak?

I'm rusty on the first generation wizard, but it seems like there was a rear presoak option on the menu.

On the high pressure, you only get to control the boom at the start of the pass, so for the boom to drop at the rear you have to program it into the next pass.
 

washnvac

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Are you talking about HP spray or presoak?
I was talking about HP. When HP starts at the front of the car, boom goes down to third prox (from top), then comes up a bit, then goes all the way down to fourth prox (bottom one), then up, then travels to rear, boo goes down to third prox then all the way up. Why is the rear sequence not the same as the front. This set up can leave the bottom rear dirty at times.
 

Greg Pack

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On HP passes the first generation wizard only controls the boom at the start of the pass, not the rear. When a boom goes down at the back of a vehicle, that is the start of the pass before the gantry goes towards the front. It controls the down time in seconds. It is not looking at the proxes to determine how far to go down, there are there to serve as limit switches.

Lets say the passes you are describing in the above scenario is pass three and four. In pass three when the boom goes to the bottom prox the boom down time is probably set to 8.0 seconds, which will force the boom to travel down eight seconds (or until it hits the bottom limit switch). The repetitive up and down motion is caused by setting the option on the menu called "bug pass". On pass four, the boom is probably set to around 5 seconds, with no bug pass selected. You can enter programming and change this setting if you know how to program one.
 

washnvac

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cfcw--- I finally got around to looking at this. And of course, you were right. There is no 'bug pass" selection for the rear. I feel there should be, though. That would really help clean the back. The unit was actually set to 7.0 seconds for boom down. I increased it to the max available, which is 9.9 seconds.

Previously, I had slowed down the boom up/down motor to 42 Hz. I was thinking it would give a better job at front/rear. But I actually hindered a good cleaning at the bottom rear, as it was only going half way down due to the time and slower speed. My opinion says the prox signals would be the better way to do this. But anyhow, I got to look in the book and put it back to what it should be; I think 50 or 55 Hz.

Thanks for your help on this.
 

Greg Pack

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Glad you figured it out. I too think a bug pass would be helpful on the first generation wizard.

One of the things I like about the 2.0 is its' programming flexibility. You can make it do pretty much anything you want at different speeds, with very few restrictions. Each pass has a front and back boom down capability.
 
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