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I need a rebuild kit for the toe brake actuators for a Rangemaster, does anyone have the parts numbers available for the o rings. My parts book shows a hand brake.
Bob Hale

I did mine a few years ago. They are standard o-ring part numbers. I should have the part numbers at the hangar. I will get them in the next few days.

Thanks

If I remember right, there are two internal o-rings per cylinder and one o-ring to seal the cap. Three o-rings to re-seal each master cylinder.

-MS28775-110
-MS28775-113
-MS28775-012

As another option, you can check with Plane Parts Inc, they have been offering o-ring kits for most of the Navion parts (gear actuators, struts, etc.) and are generally reasonable in price.

Appreciate it
Bob Hale