Problem with Du-All dismount

[Patrick1720]

This is my first post here and I hope someone can help. I bought a Ford 1720 new in 1992 and the dealer installed a 107 Du-All loader. I have never had the need to dismount the loader until today. It dismounted very easy but when I disconnected the hydraulic lines the 3 point hitch lift stopped working. I was a little low on hydraulic oil but after adding--same problem. Then I remounted loader--everything works fine. Do I need to have some type of hoses to connect the fittings on the box when front end loader is dismounted in order to complete oil flow? Thanks for any help you have.