wateka
Well-known member
I finally found salvage parts on eBay to re-install parking brakes on my 853 that a prior owner had removed. My model has an all mechanical system - no solenoids. The manual says to bolt the brake parts to the cover plate and then re-install the cover plate. Ok. Sounds easy enough.
Ha ha. The joke was on me. Trying to wrestle 35 pounds of steel into place with limited space got my hands covered in RTV, several hours of frustration and nowhere close to having it installed.
The problem I had was trying to get the two disks inside the two sets of brake pads. The pads and spacers float on their bolt, and the discs can each angle left or right about 5°.
Below was about as close as I could get it, and that was with the benefit of opening the front cover as well to stick my phone inside the case to see what was happening.
I even used some springs (attached to the green wire in the pic) to hold open the pads, but that didn’t work.
I finally gave up, pulled the cover plate out, and wiped off all the RTV.
The obvious answer, below, is to install the caliper/brake blocks and pads first. It’s much easier to line up four 1/2” bolt holes than it is to get the discs between the pads when they are already installed.
Once that was done, I put in the new o-ring on the shaft (part number 25K30100 which is just a dash 120 o-ring) then applied RTV to the brake blocks & frame, dropped the cover on and bolted everything back together.
Ha ha. The joke was on me. Trying to wrestle 35 pounds of steel into place with limited space got my hands covered in RTV, several hours of frustration and nowhere close to having it installed.
The problem I had was trying to get the two disks inside the two sets of brake pads. The pads and spacers float on their bolt, and the discs can each angle left or right about 5°.
Below was about as close as I could get it, and that was with the benefit of opening the front cover as well to stick my phone inside the case to see what was happening.
I even used some springs (attached to the green wire in the pic) to hold open the pads, but that didn’t work.
I finally gave up, pulled the cover plate out, and wiped off all the RTV.
The obvious answer, below, is to install the caliper/brake blocks and pads first. It’s much easier to line up four 1/2” bolt holes than it is to get the discs between the pads when they are already installed.
Once that was done, I put in the new o-ring on the shaft (part number 25K30100 which is just a dash 120 o-ring) then applied RTV to the brake blocks & frame, dropped the cover on and bolted everything back together.
