Need help. I have a 42: deck that I installed new pullies, new spindles, new blades, new brakes and new springs. Only thing not replaced is the plate for the pullies. Two issues, first I am not sure if I have the brake springs installed correctly. Secondly, I ran the mower and had the following issue. The blade engagement lever was really hard to push up into position. Also, after engaging the blades, they will not disengage. I just don't know what else to replace or adjust? I am reading that the engagement plate can wear and cause issues. So first I need help on the spring installation, need help on how the deck should work and what may case the blades to not disengage. Also the engage lever should not be so hard to push up. This is a 15.5 HP motor and I believe a 1999 mower. Please help.