Do you clean your Dynafit heel pieces seasonally?

I've never cleaned mine and I've owned 4 or 5 differerent versions. And I've never had an issue. But now you people have freaked me out and I'm nervous, so I've got a good summer project.

I've been cleaning mine every year- just got done taking a pair apart. I used to use the Pedro's; but I think I remembered something about not being as water repellent- so switched to Bull Shot(?)- another red synthetic.

After taking the binding off I noticed a red stain on the ski- so wondering it the grease did it and for the ski binding we really do not need a high speed grease like for a real roller bearing. I'm thinking of using the White Lithium grease- it seemed to work better for bicycle bottom brackets and peddles. Before getting back into skiing- no AT I rode road and MTB's year round and at times through deep water and the Lith grease seemed to hold up better on slower turning bearings, like a BB. The red synthetics are very light grease and for our purposes, I think, cheap automobile trailer grease would be best: low speed and coats very well- probably gets thicker sub freezing; but still coats the surfaces and should keep the grit from reaching the protected surfaces.

One thing I'm wondering is what really needs grease? I know the binding post needs it, the springs were covered with it and most other parts may just end up attracting the grit. I also modify the bindings- replace the length adjusting bolt with a SS Allen head, and replace the top plate with an alloy unit- looking at plastics????

When you take the plastic piston out, rotate it to keep the wear off a single point- this can create slop in the binding when you put fore aft pressure on the heal.

I remove my Dynafit heel pieces every now and then to put ski brakes on or take them off. I glance at the grease in there to make sure there is some and it's not full of grit, but I haven't been religious about it. If I need a little more grease I use some old Ramer grease I have laying around. I figure if it was good enough for Paul Ramer, it's good enough for me. It's sort of purple in color, but I have no idea what kind of grease it really is.

Last summer I noticed that the lateral release springs were a bit corroded when I removed the heel piece. If you store your skis standing upright (like everybody does) and there is water in the heel piece, it can just sit there (held in the hollow cup-shaped adjustment screw) without evaporating for a long time. (I have Comfort bindings.) So, as much as lubrication, I think it might be a good idea to take the heelpiece off now and then and let it air out.

On the other hand, I don't get too worried about problems with the heel piece. To my thinking, the heel piece on a Dynafit binding is much less critical than the toe piece. I could break both heel pieces or some terrorist could steal them off my skis and I could still get home. What I worry more about is breaking or ripping out a toe piece. Happily this has never happened to me.

If you store your skis standing upright (like everybody does) and there is water in the heel piece, it can just sit there (held in the hollow cup-shaped adjustment screw) without evaporating for a long time. (I have Comfort bindings.) So, as much as lubrication, I think it might be a good idea to take the heelpiece off now and then and let it air out.

On the other hand, I don't get too worried about problems with the heel piece. To my thinking, the heel piece on a Dynafit binding is much less critical than the toe piece.

The heel springs can get very corroded over time, and increase your DIN, if not cleaned and lubricated at least once a season.  That's something one might want to be careful about; maybe unscrewing the spring screw a bit will get a corroded spring back to the DIN you want? 

Tsk, tsk, tech, tech....