Tony
I eventually was able to do this with my fingers.
It did hurt a little (my fingers that is), but I started with the leftmost top, where the access is the easiest, and pulled it off. Then the others came off too as access became easier, only one of them was tight.
Be careful when pulling the cap off, make it slide off slow, as sometimes some of the knobs it covers may be pulled off too, remaining in the cap (which is OK - you just put them back), and if at the point of disengaging the velocity is too much, the knobw may fly out and try to hide under some heavy furniture in the darkest possible corner, or even drop into the heating air duct.
I was warned so I did not have any accidents.
Mike
I eventually was able to do this with my fingers.
It did hurt a little (my fingers that is), but I started with the leftmost top, where the access is the easiest, and pulled it off. Then the others came off too as access became easier, only one of them was tight.
Be careful when pulling the cap off, make it slide off slow, as sometimes some of the knobs it covers may be pulled off too, remaining in the cap (which is OK - you just put them back), and if at the point of disengaging the velocity is too much, the knobw may fly out and try to hide under some heavy furniture in the darkest possible corner, or even drop into the heating air duct.
I was warned so I did not have any accidents.
Mike