I have a rck60 -29b deck and the shield on the deck can only be lifted 3 inches or 10 degrees or less is this normal ? my old rck54 the shield on my bx25 was capable of lifting over 90 degrees the rck60-29b decks shield hits a bolt on cutting deck and this bolt inteferes with the shield from lifting up .Do I have the wrong shield ?or do I have to cut the shield were the bolt contacts the shield.