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The hammer, or percussion pressure, for this type of hammer, is usually run at 180 Bar. Of course it depends on the ground you are drilling, if you are drilling some super hard granite, then 190bar can be acceptable. If the rock is "softer" giving you a rate of penetration of faster than 1.5meters per minute, then 160bar would be more acceptable. If the ground is really soft, I'll adjust the pressure right down to 130 bar. As always, it all depends.. one part of what makes drilling so interesting is the challenge of finding the right balance of Percussion pressure, rotation speed and pressure, and the damper pressure, for the type of rock being drilled. Sure, you could let the hammer run at 180bar all day, but if the ground is too soft or if there are many cavities, then that high percussion pressure will lead to the cracking of the rods and the shank. One criteria of what makes up a skilled operator, is the ability to adjust the rig for a high rate of penetration, while also being as gentle as possible to avoid premature wear and tear of the equipment.

I agree. After Australia went covid stupid, I decided to move to another country and start a new line of work. My days of drilling are over. But, I'll still be here online and I'll still respond to any drilling related questions :)

Hi buddy what level are you talking about is that the air flow or air pressures? i experience blowing up the air filter/ separator. thank for your comment

@@noelrevil7623 Air Level. With this type of machine and size of the separator tank/compressor 50% air should be somewhere around 3 bar pressure. Anything lower than that will cause the compressor to over cycle and send hydraulic oil in the separator tank to go places it shouldn't.

If the problem of oil getting dumped into your air intake persists look into replacing the "anti rumble valve".

The rig will drill anything between 76mm-127mm, you can go larger, but it's not really designed for it.

Hola, lo siento, no tengo traductor de español. ?de donde eres?

@@qdriller1574 hola, soy de España,

Drilling machine components

The operator mode is the default setting every time the rig is turned on. The code to select the different access levels/unlock the hidden tabs, is built in from the factory. All of these rigs run only a few different codes between different models and generations of rigs. Although they can also be set up to only change mode by inserting a "service access" usb stick. It will depend on how the rig was configured from the factory.

The rods on that rig are 3.6m each.

Good rigs the L8

Curious what "trimble" set up is? Massachusetts driller here. 22yrs experience never heard of it. But I do know quite a bit about these rigs currently running T45-11 for 6yrs.

The Trimble is the name of the GPS Unit used is setting up GPS patterns, or as Epiroc call it, HNS (Hole Navigation System). Like all techy things, they are great when then work. You just load the drill map onto a USB, stick it in the rig, and boom, your drill map is on your screen, when you select a hole, it automatically sets the hole angle, direction and depth, all with no dots on the ground. It'll even work out offset/deviation calculations for you at the touch of a button. I've used it on F9c's, T45's, C50's and D65's. There are also other systems of different names that basically do the same thing for other styles of rigs. Personally, I love it, you don't have to worry about trashing dots while tramming, and it saved me from repainting an entire patterns after it gets marked up in fluro pink, which I have serious trouble seeing lol

Yes Danny :)

@@qdriller1574 hello!