Posted by Ron Hart on March 10, 1998 at 19:43:04:
In Reply to: AC D15 rear hydrolic posted by Ken Roddy on March 10, 1998 at 13:17:28:
:The knob is on what AC called the transport valve. It was used on the traction booster hitch on a disc. It allowed presure on the lift arms without putting presure on the disc lift cylinder. It was also used on a semi-mount plow to raise the front of the polw before raising the tail wheel. I recently purchased a d15 AC. There is a rear hydrolic coupling located on the rear left just behind the seat. This coupling has two lines running to it and a knob juthese tractors have no down pressure on their hydrolic only lift. Will this knob release the lift to lower an implement faster? Whats the purpose of this coupler and knob?
st underneath it. Whats the purpose of the knob..? I'm told