alte aa600 problem

[Highmaintenance]

I have a 1992 gmc top kick with a altec aa600 .When i in gauge the pto under the turn table i hear a thumping sound in the hydraulics .If i run 2 or more functions at a time the noise is not there .It seems like a relief valve or something .I know of 2 other trucks in the area with the same aa600 that do it also but to me it just doesn't seem right . Any input would be great. Thanks

 

[greg storms]

altec adviser

hey, I've had a great experience with Ed, an altec adviser on the east coast: 816-364-2244. He walked me through an issue with my truck & within 48 hrs of contacting him, it was resolved. Get the serial # & give him a call. he may take a day to acquire/research the prints. However, he knew almost right away what my issue was. Good Luck! :bang:
Greg

 

[Highmaintenance]

Thanks greg i'll give him a call and see if we can get this worked out.