Has anyone successfully dismantled a hydraulic cooling fan motor and serviced it successfully? Of the two fans on my FLU, one spins freely and the other will barely turn when I spin them manually. I have not tried to put 24 VDC to them to actually test them yet. Most of my excavation work with the SEE has been in very cold weather and the hydraulic oil hasn't gotten hot enough for the fans to turn on automatically. My next step is to provide 24 VDC to each motor to see whether they run, or try to run and I'll go from there. However, the very stiff one obviously needs help.