I kind of agree with Zewnten. There is a fair amount of special tooling requirements for hydraulic breaker maintenance. Not the least of which is what is just required to service only the nitrogen parts. I personally have about seven different nitro charging kits on my service truck for the most popular brands of hammers in my area (npk, modern tramac, bti, allied, etc) and another three or four for less popular brands in the shop. A couple of other popular brands I just don't have because they come up less often like older tarmac and cat. The charge kits for these particular hammers are either so awkward to use or just so expensive that I take the accumulators to one of the local dealerships to be charged.
That is just the nitrogen side of things.
The next big issue is the torque requirements for just about any breaker larger that the one you are talking about. Just the side plate bolts on these breakers have a torque spec so high that they require more specialized equipment. The cheapest option would be a mechanical torque multiplier. And that is a fairly dangerous piece of equipment even for an experienced hand. Tie rod torque is worse.
If you start right there, with just those two expenditures, I would have a hard time believing that you could even half equip your shop for hammer service for less than ten grand.
That is just the easy part... That is just money spent. The next part comes down to diagnosis and tech knowledge. You need to know when a breaker problem is because of the actual breaker or the carrier running it. Oh, yeah... That requires at least another special tool. You need to have a pretty good flow meter and the knowledge to know what it tells you. (That is an additional four grand) And the experience to know which breakers work best with which machine.
This is just my personal opinion, Komatsu's have so much back pressure that you can only mount npk breakers on them.
I hope someone takes exception to that statement. I know there are a couple of komatsu gurus here. And I have never really understood why this seems to be the case.
Even then. Lets just say at this point you are about fifteen grand into setting up this new enterprise.
Then you have to quite often fabricate tooling for just taking breakers apart. I have serviced so many tramac breakers that I would swear that what I need has to exist on the service truck. But I constantly have to fabricate new tools.
I haven't even mentioned bushings.
