Easy fix
When our boat had the same symptoms (wheel brake not engaging) we took it apart, found the brake pads worn and the knurled surface they clamp onto covered with grease from the chain. The fix was to replace the brake pads using the Edson kit, then clean the braking surface with acetone to remove any trace of grease.Doing the repair wasn't hard. The most difficult part by far was removing the compass and binnacle from the pedestal. They are affixed with stainless bolts going into aluminum which almost become one piece of metal over the years. There are new coated bolts (highly recommended and also available from Edson) which prevent this problem. Getting the bolts removed took tons of work, cussing, torches, vice-grips, more cussing, calling Edson, solvents, pipe wrenches, drinking, sawing the old binnacle apart, getting vice grips onto the now-broken-off bolts and finally ...... getting the old bolts removed. Then it was no problem doing the rest. It did cost me a new binnacle though since I had torn the old one apart to get at the stubs of bolts. Did I mention the cussing?Gary Kunkel