Hello, I am new to this forum and fairly new to skid steers as well, that being said I am currently experiencing a little issue with an '03 John Deere 250 Series 2. Firstly we regularly grease and maintain our machine (fluids, filters etc.), but it is a rental machine so we have no idea how it is treated when random people rent it from us. Lately I've noticed a fairly noisy sound that happens when the boom lift is raised, and the noise always happens whether or not there is any load on. The noise can also be heard when the boom is lowered but it isn't as loud. If anyone has any idea as to what could be causing this, any info is greatly appreciated. Thanks