Anyone have advise for us when hooking up the pressure testing gauges? Here is a photo of what I'm looking to tap into. Does anyone see a pressure relief valve in this photo? It would be great to test specific functions and pressures without having to drain the reservoir tank in order to remove the pump for visual inspection of
PRV will be on the spoolblock x 2Anyone have advise for us when hooking up the pressure testing gauges? Here is a photo of what I'm looking to tap into. Does anyone see a pressure relief valve in this photo? It would be great to test specific functions and pressures without having to drain the reservoir tank in order to remove the pump for visual inspection of the internals.View attachment 308379
Follow the hoses from the hyd cylinders, they go to the spoolblocks. Perhaps you should employ an experienced mechanic before messing about with high pressure hydraulics.Please tell us where or what the spool block is. We don't have a lot of experience with this.
Yes, the second photo 135426 shows the spook blocks, Main relief valve is on the right of the four spoolcaps, hex locknut with Allen head adjuster in centreMaybe the part you are talking about is in one of these photos?
correctThis looks to me like a pressure testing manifold. Am I right?View attachment 308439
The kit in your photograph is only the main barrel and pistons, this is not a rebuild kit,,you will require two of these,plus servo shafts,bearings,seals etc. The pump will need to be removed for overhaul/rebuild. Linde made good pumps and I suggest you contact them or one of their distributors. A good hydraulic shop should be able to overhaul this pump but I would be very wary of using Chinese components from a quality standpoint.Progress. I got my new pressure gauges attached to the testing manifold. At wot the gauges show ample pressure. Everything operates.... a little jerky but not bad. When I back off the throttle 20% the gauges show nothing, everything stops working. After researching the Linde AG main hydraulic pump B2PV105 it looks like a rebuild kit is available for about $1,500 usd from China. Has anyone on this forum ever rebuilt this type of pump? I have searched everywhere for manuals but can't find anything. If we have to pull the entire unit from the excavator we have the machinery to do it. However, it would be amazing to find out if the unit can be rebuilt / repaired by opening up the case when it's still in the excavator. I realize this might be a long shot but worth looking into. I will attach a few photos with some red labeling. Not fishing for free spoon-fed advise. We are happy to pay for direction with this situation. It would be frustrating to pull the entire pump and find out the repairs could have been made while it was still in the excavator. I am currently rigging up a larger pressure test system that will be right at the pump pressure outlet. Probably worth the effort to make sure the main pump internals are the problem.