58.14 Locate Distributor Magnet Kit Part K71-104-00 Fits Dexter 10 x 2 1/4' & 10 x 1 1/2' brakes. The braking effort is modulated by varying the amount of voltage supplied to the magnets whereas, hydraulic brakes are controlled by the output pressure of the master cylinder. Fits Dexter 7 x 1-1/4' brake (after 4/90) and 10 x 1-1/2' brake (prior to 9/88). The sliding friction of the magnets against the armature surface actuates a lever which in turn expands the brake shoes out against the drum surface, much like the action that occurs within a hydraulic brake when the wheel cylinder expands. when voltage is sent by the brake controller to the electromagnets, they are attracted to the rotating armature surface of the drum. For electric brakes only, the machined inner surface of the brake drum that contacts the brake magnet is called the armature surface. Magnet Kit(K71-104-00) - Fits Dexter 10 x 2 1/4' & 10 x 1 1/2' brakes. Magnet Kit(K71-057-00) - Fits Dexter 7 x 1-1/4' brake (after 4/90) and 10 x 1-1/2' brake (prior to 9/88). This armature plate is used to convert SKU: 5331373 (DEXTER Drum 10K, 8-6.50, 5/8'-18 Studs K568704, K10788), SKU: 5331374 (DEXTER Drum 10KGD, 8-6.50, 5/8'-18 Studs K568270), SKU: 5331371 (DEXTER Drum 12K, 8-6.50, 5/8'-18 Studs A568260), and SKU: 5331372 (DEXTER Drum 12K, 8-6.50, 5/8'-18 Studs A090871) for use with electric brakes. In the event you need to turnthe drums or resurface the armature it is recommended that you replacethe magnets at the same time. Drums can be resurfaced removing no more than.030' and should be to 120 micro inch finish. While those brakes are actuated by hydraulic pressure, generated by the master cylinder to expand the wheel cylinder, electric brakes function by the action of an electromagnet inside the brake drum. The armature surface (which contacts the magnet) needs to be inspected foruneven wear or scoring. interchangeable part #'s 6400045, 023-451-00 Electric brakes are similar to the hydraulic drum brakes used on automobiles and trucks. 12-1/4" x 3-3/8" electric brake assembly fits 9,000 to 10,000 lb. Dexter is the leading manufacturer of spring axles, torsion axles, heavy-duty, actuators, brakes, hub, drums, rotors, suspension components, doors and vents. Product Description Works with Dexter 9K-10K electric self-adjust brake assembly Right Hand (Passenger Side) 12-1/4" X 3-3/8".
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