My buddy bought this in NE, got about four days of use before the seal in the bottom of the rotary union failed. Looking for info on the rotary hydraulic union at the base of the boom. 2002 towable lift, gas powered. I can't find any info about seals or a complete unit to replace it, or even figure out what material to make a replacement seal out of. Supposedly the guys that bought Ameriquip out have the manuals and cross reference info, but I'm sure not getting any help from them so far. Thanks!