Krell SACD Standard: grinding CDs prob.solved

Hi
By pure accident i solved the problem of notoriously noisy transport on Krell SACD Standard.I needed to replace a fuse (switching from Hi-Fi Tuning back to stock)and misplaced the original Krell fuse which was labeled as slow blow 500 mA.Without having one on hand i installed 1 A slow blow fuse and that resolved the problem.The unit runs barely warm (compared to hot with 0.5A fuse inside) and all the noisy CDs are spinning dead quiet now.
I have 2 possible causes for this:
1.because the unit runs a lot cooler now,it prevents some part inside which previously caused the grinding noise ,
from getting expanded because of the heat.
2.because of urestricted current,the whole mechanism is not strainig and operates as it suppose to
Note:the fuse inside my brand new unit was 500 mA,installed at the factory.When i called the tech.dept. to inquire about the fuse,they said the fuse inside according to the technical papers should be 0,8 A.I don't know if it is a quality control issue or what,i am glad the unit is spinning disc and is silent.Too bad i strained thru the grinding noise for the past 3 years.