ok my DHT 28 ton splitter is getting progressively weaker. Only a matter of time before the pump needs to be replaced. Besides the normal configurations of mounting and hose size what other considerations are there in finding a replacement? Can you go up in flow rate for improved performance? Stock is 17.5 I believe.
Log splitter pumps are usually the least likely cause of reduced splitter performance. Cylinder internal seal wear is more likely the problem.
Certainly a possibility. This is the second cylinder on it. First was replaced under warranty for leaking seals. The second one is leaking also. Only leaks when sitting not while running. I find that odd but,,,,,,,,,
Bigger pump will likely require more horsepower to run properly. Maybe try testing the cylinder for internal leaking before replacing the pump. Testing the pump would also be a good idea before throwing money at it.
Testing? How does one go about these tests? I thought realizing it was losing power was a hard enough test LOL
You need a flow meter to test the pump but the cylinder you can do yourself. Pull the cylinder off and get some threaded metal caps to seal the fittings. Hang it from a tree or rafters in your garage with some weight, maybe 50 to 100 lbs, on the end. If after an hour or so the rod is extended out of the cylinder then the piston seals are leaking by internally.
Also, if it works fine when cold and gets worse when hot you might want to get everything ready for the test and run it until it starts to fail and then as quick as you can do the test while still warm.
