Ford 4S4Z-2B120-AA Brake Caliper Assembly-Less Pads

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However, before doing so, one should activate the parking handbrake, free the front wheel bolts, lift the front part of the vehicle and place it on sturdy stands and then take off the required front wheel. This is to avoid loss of brake fluid when servicing the brakes or the brake system, this is done by adding a brake hose clamp at the exposed part of the flexible hose going to the caliper. But allow the flexible brake hose to be loose on the caliper end, although the hose should not be unscrewed for the time being. Slide the brake pads out of the caliper, set it into position to hold the caliper steady and keep hydraulic hose from rotating it then, loosen the bolt that connects the caliper to the hydraulic hose making sure that the hydraulic hose is not twisted while loosening it. Screw the open hydraulic fittings in the caliper and hose to protect them from dust and dirt and if required remove the caliper carrier bracket from the hub carrier by unscrewing the bolts. Before going to work for the day check on whether or not there are parts for the caliper overhaul. Carefully remove all types of particles from the caliper, including dust and dirt, but make sure, that you do not breathe in the dust. Remove the dust cover rubber seal from the end of the piston and then using very low pressure force the fluid intake union to push out the piston using a least thickness of wood so as to avoid damages in the case the piston is rejected abruptly. Twist the piston seal away from the groove in the cylinder bore with an appropriate non-scratch instrument. Remove the piston and caliper body and clean with brake cleaner and ensure to check for any signs of wear, damages or corrosion. If the piston is unserviceable, a new piston and seals must be secured; if the cylinder bore is unserviceable, the complete caliper must be changed. Replace the seals irrespective of the condition of the other parts, dip the piston and seals into fresh brake fluid and then place the lips of the piston seal into the groove provided on the cylinder bore. Ensure the piston is pushed into the bore without compromising on the seal; fit the dust cover rubber seal on to the piston and caliper and finally push the piston fully down. Finally, add the caliper, undo the operations in the installation process, make sure the flexible brake hose is not twisted, tighten the bolts and the nuts of the wheel to the proper torque of your car; release the hydraulic pressure in the brake circuit, remove the brake hose clamp, check whether there are any leakage at the hose connections and test your brakes before you put the car back to normal operations.