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Operation of Vacuload Controls

BlastOne’s Master Technician, Kerry Cooper, explains the operation of the Vacuload controls

 

So, on this this side of the machine, you can now see the hose for the receiver tank which operates the valves. On top, you can also see this battery case. The battery case is for the control unit for the pulse. There’s another valve here that says drain tank daily. So, that is for the receiver for those valves on top.

So, the receiver has a drain on it that enables you to open that valve and let any excessive moisture drain out the end of this hose. The one thing to be careful of too is just make sure that’s poked in underneath there. So, when you drain it, crack that valve slowly. Don’t just open the valve completely because the hose could move around. If you’re concern with that, just put a cable tie around it to hold it in suture. It does have a saddle clamp there to hold it so that the valve can’t shoot off there.

So, that valve is there for a reason — to drain any air excessive moisture out of that particular tank. It’s imperative you do that.

On this particular control box that is for the pulse. That actually sends a signal up to the going valves, the valves themselves, the pulse valves to pulse periodically. So, it’s all on a timer, inside this box.

Do you need to access this? Absolutely not! If there’s a problem with this, bring the guys on the help desk and they’ll sort this out for you or talk you through it.

On the side of this is the little button. That button is just a test button to make sure that they are pulsing; they are surging. So, do I suggest you use it? Look, if you don’t hear the pulse during the course of the day or within the first hour, there is something wrong. So, you need to push this button to make sure they are actuating. If they’re not, what you need to do is go back to the battery with a circuit test gauge or as a similar type gauge to find if there’s voltage in there and just check that you have got 12-volts.

Now, when these machines are utilized in an IS or intrinsically-safe required environment, you’ll find that this battery is not here and it’s actually a pneumatic system to make them pulse.

So, pneumatic system works on the same fundamentals. Nothing much changed. It’s just primarily that the pneumatics will operate those particular pulse valves rather than the electrical system. So, relatively easy to understand.

I just turn it on and the rest of it is done by pulse and by a circuitry contained within that box.

The only thing we do make sure on site is when that arrives on site. Has that box been compromised by transport? Is it damaged? Is it still watertight?

In this case, it’s good repair. So, these lines here, just make sure that they haven’t been damaged during transport. The other important part of this side is this tiger line. This particular line is coming from the receiver and coming down into these suction pipes here.

So, the main drawer is from these two particular lines. One on either side. So, it’s important to periodically check within your daily maintenance check to ensure that they are all the way down on the end of the ferrule and they are pushed all the way home and they’re nice and tight. Because if they come loose or they are loose, they will affect the entire performance of this particular machine by sucking air.

One thing to remember, this is the suction side. So, when you put them on there, they will actually suck them right on to the fitting. So, it’s relatively easy to make sure that they are tight and secure. So, even when you start the machine with gloves on, just check that they are tight and they’re pulling down onto the onto the stem of the hose tail where the hose stops.

Control box, battery, supply line for the receiver tank, daily drain – that’s all we have to check.

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