Bosch Brute Breaker Hammer Internal Mechanics

all right go for it what are we looking at so this is the bh 2770 the breaker hammer that they're using in the center for the competition uh the competition in the middle is if you break up a hung of concrete that's 10 pounds you win the prize but so you can see what's happening inside and when it needs service what's involved i got this to show you so we've got the motor section up here and here's the one that we've taken out just to show that lives right there you can see the armature and the field here now whatever these things need service it's really simple because all you really need to worry about are your rubber parts and your brushes and grease so once you've cleaned it out you replace the rubbers and the brushes you're ready to reassemble and all it really involves is the uh the motor will turn in eccentric gear that drives your piston and these needle bearings are a little snug so let me get them all seated just right again and here we go there you go so eccentric gear piston we got our first cylinder then that piston will form an air pocket in the cylinder see the o-rings will only allow this to drop until it gets past those holes now there's an air pocket here and when that piston comes up it's the air pressure that actually does all the work for you here's the other outside cylinder there'll be a lot of grease in here to keep everything lubricated now we got a little cushion a metal seal nice tight fit a rubber donut to absorb some impact another piece for cushioning and your front striker that's where everything happens now you got your nose piece and you're done this is where the bit goes and that's all the work it's all really compressed air that's given to you by the piston inside the cylinder that's it the hell is pretty cool dude it's easier and if you think videos like this are cool you know what hap goes a long way just that hitting that thumbs up button