Have a Rayco 1997 Super Jr 1625 stump Grinder. lately having trouble getting it to move forward and reverse. I have changed the hydraulic lever and shaft on the control tower as it had a lot of play in it.
Called Rayco and asked their service Dept for some help and said to check the counter balance valve. Take the cartridges out and check for something in the valve that could be blocking flow.
There's the first problem...Does anyone know the correct sequence to adjust these settings on the two cartridges in this aluminum block after removing. Did not realize they were adjustable when disaassembling so do not have settings before removal or how to adjust,
Rayco said it could be the motor however it moves fine at first getting it back to the site but then when trying to move it out of the yard it runs slow and you have to jerk the lever from front to back to get it to load on the trailer. Cant believe its the pump because when it does move at first pulls itself strong either way.
Got me baffled and Ive been doing this for 23 years
A new pump they want 800.00 dollers for and a new counter valve set up another 300.00.from Rayco. Don't see any numbers to try and get it from the manufacturer direct
Its paid for itself many times over but not sure if its worth putting another 1200 to 1500 in it
Any suggestions would be greatly appreciated
Called Rayco and asked their service Dept for some help and said to check the counter balance valve. Take the cartridges out and check for something in the valve that could be blocking flow.
There's the first problem...Does anyone know the correct sequence to adjust these settings on the two cartridges in this aluminum block after removing. Did not realize they were adjustable when disaassembling so do not have settings before removal or how to adjust,
Rayco said it could be the motor however it moves fine at first getting it back to the site but then when trying to move it out of the yard it runs slow and you have to jerk the lever from front to back to get it to load on the trailer. Cant believe its the pump because when it does move at first pulls itself strong either way.
Got me baffled and Ive been doing this for 23 years
A new pump they want 800.00 dollers for and a new counter valve set up another 300.00.from Rayco. Don't see any numbers to try and get it from the manufacturer direct
Its paid for itself many times over but not sure if its worth putting another 1200 to 1500 in it
Any suggestions would be greatly appreciated
. .. but seriously, I chased a lot of ghosts out of my machine with fresh hydraulic fluid and a new filter... but mine never got to the point it couldn't move at all... there were times it seemed to lack the ability to turn the wheels when they needed a lot of torque, but no issues on level ground. Hope this helps. The fluid/filter change helped the drive torque, and as a bonus eliminated the drift I had in my raise/lower hydraulic cylinder.
