Sliding patio door roller wheels
A quick learner from Middleton, WI says:
March 1, 2016
My door is a Acorn Products Co. LM69, metal frame seems to be aluminum or steel. Both front and rear wheels are worn out as I can't adjust them any higher so the door doesn't slide well at all. note: each adjuster has only 1 wheel and this is for the glass patio door not the screen door. It is quite heavy so I'd rather not have to remove and replace several times to perform this repair.
Tom from SWISCO responded:
March 2, 2016