Trying to change wheels on Patio door

[Hugh De Payens]

I have a double sliding patio door. I was able to change the wheels on the "female" side but on the male side (pic1). I can remove blocker at bottom (pic2) but I can't remove the anti-lift blocker at top of door (pic3), it just doesn't seem to budge with screws out.

I must be doing something really stupid.

Can anybody help me?

 

[crank39]

Take the gold zinc plated lock strip off and the brown strip off the door and then see if that helps in giving you enough room to lift off the runners

 

[Hugh De Payens]

Thanks Crank. I tried that previously but it didn't budge. I asked a friend in the trade and he said that the brown strip clips in and might need a Don Carlos knife to get it out.