Brakes, Wheel Assemblies, and Tires tips

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Filed Under (Tips and Review) by admin on 09-02-2012

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BRAKING SYSTEMS The braking systems used on motorcycles and ATVs, like virtually any type of braking system, reduce the machine’skineticenergyby transforming it into heat energy known as friction heat . Therefore, a brake is an energy-conversion device that converts the energy of motion (kinetic energy) into heat energy. Motorcycle braking is accomplished by the friction (resistance to movement) produced when a brake lining is forced against a rotating drum or disc. Friction between the linings and drum or disc serve to slow and eventually stop wheel rotation. The brakes used on motorcycles fall into two categories: Mechanical drum, sometimes called expanding shoe Hydraulic disc Motorcycle brakes commonly use either hydraulic (fluid pressure) or mechanical (cable or linkage) mechanisms to apply the brakes. Brakes, Wheel Assemblies, and Tires 1 Mechanical Drum Brakes First, let’slookatthedrum brake, sometimes called the mechanical, expanding double-shoe brake ( Figure 1 ). Generally used for rear wheels, this brake is also used on some front wheels. With this kind of brake, a backing plate that’sconnectedtothe forks holds the two brake shoes. The wheel and brake drum rotate around the brake shoes. When the rider applies the brake, a cam pushes the two semicircular shoes outward. The circle formed by the two shoes expands. When the shoes expand, they press against the rotating drum, thereby limiting its free rotation

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HARLEY DAVIDSON LOWER FORK BRACKET (TRIPLE TREE) COVER KIT INSTALLATION MANUAL

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Filed Under (Harley Davidson) by admin on 13-03-2011

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Installation 1. For models equipped with air baffle: See Figure 1. Remove and discard the two hex screws (2) and flat washers (3) holding the baffle (1) to the fork stem and bracket assembly(4). Retain the baffle for later reassembly. For models not equipped with air baffle: Remove and discard the two plugs from the rear of the fork stem and bracket assembly (4). 2. Remove and discard the hex socket head screw (6) holding the brake line manifold (5) to the underside of the fork stem and bracket assembly. 3. Place the lower fork bracket cover into position covering the brake line manifold. Attach the cover (and the baffle, if so equipped) to the fork stem and bracket assembly with the two 1/4″ self-tapping hex screws from the kit. Tighten securely. 4. Install the 5/16″ self-tapping hex socket screw through the cover and brake line manifold into the stem and bracket assembly. Torque to 10-15 ft-lbs (13.6-20.3 Nm). 5. Verify that the throttle and clutch cables are routed properly and do not interfere with steering the vehicle. After disturbing the brake system, BEFORE moving motorcycle, you must pump brake fluid until the pistons push the pads against the brake disc. If you don’t pump fluid pressure up again, the brake will not be available to stop the motorcycle which could result in death or serious injury. After disturbing the brake system, always test motorcycle brakes at low speed. If brakes are not operating properly, or braking efficiency is poor, testing at high speeds could result in death or serious injury

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