Wednesday, November 19, 2014

Clean Brake Calipers

Compress the caliper piston(s) using a caliper piston effects. The remaining brake fluid Testament purge from the brake hose banjo bolt hose and into the void pan. Reposition the rubber boots of the pistons if necessary. Calipers obtain many lubrication points, and generally, the fingers of the pads' backing plates can sieze against the metal housing of the calipers. Calipers should be serviced and cleaned at every brake pad replacement or when they fail due to dearth of lubrication.


Instructions


1. Levy on the Respiration mask and safety glasses. Lift the vehicle to waist equivalent. Remove the hubcap(s). Remove the lug nuts or studs with the crunch gun and socket. Remove the spin.


2. Corner a caliper hose crimp on the brake hose snugly. District a empty pan under the circle and then remove the banjo bolt of the brake hose from the caliper. Some brake fluid Testament empty into the pan, nevertheless the crimp Testament nourishment with brake fluid loss whether placed securely Sufficiently on the brake hose.


3. Disassemble the caliper from the revolve. Remove the two caliper bolts using a ratchet and socket or compatible fist wrench. Trustworthy calipers may combine the caliper bolt as the caliper slide. This style Testament keep a far-reaching, smooth shaft and be threaded on the extreme where it screws into the caliper bridge. Other types of calipers benefit smaller threaded bolts and the slides are seperate components. Fix the bolts or bolts/slides aside.


4. Pry the caliper off of the rotor with a pry bar. Country the caliper into the void pan so the position of the brake hose connexion is low so the brake fluid Testament void from it. Some style calipers Testament chalk up the brake pads clipped to them while others assent the pads latest in the caliper bridge. For pads that are clipped onto the calipers, remove the pads prior to placing the caliper into the withdraw pan.


5. Appropriateness an results gun and a socket to remove the two caliper bridge bolts from the knuckle. Remove the pads provided relevant. Remove the pads' rap clip hardware from the caliper bridge whether relevant. This hardware clip should be replaced for supreme caliper services where the pads were stuck/seized in the bridge. It Testament catch less day and hit the pads a latest, smooth surface to ploy against.


6. Disinfected the surface of the caliper where the hardware was dependable removed from (in the absence of rap clips, Disinfected the pads contact points of the caliper) using a die grinder with a coarse reconditioning CD until the surface of the field is smooth and Disinfected. This removes rust and corrosion buildup.


7. Employ a illumination coat of antiseize lubricant or silicone based brake lubricant to the existence of the bridge cleaned with the die grinder. Install the cutting edge brake hardware jangle clips (provided relevant) and then employ another luminous coat of lubricant on the all-inclusive surface of the clips. Establish the bridge aside.


8. Bring the extract pan and caliper to the bench vice. Area the pan below the bench vice and assign the caliper into the vice.There was a time when calipers were rebuilt by mechanics and labour charges were applied to the customer in assortment to accomplish so. Just now, remanufacturing companies rebuild calipers, which has brought the reward of calipers down significantly. In many cases, provided a caliper piston is seized, it is amassed financially adept to alter the caliper then it is to fee the technician to rebuild it. If the boots are torn, they should be replaced (see References) or if the pistons are not allowing you to compress them, the caliper should be replaced.


9. Remove the protective caliper slide rubber boots from the caliper. These boots should also be replaced if cracks or tears are present on them. Caliper hardware kits sometimes include new slide boots and if this is the case, replace them regardless. Spray brake cleaner into the slide cavity holes. Use a caliper honing tool to the caliper slide cavities To cleanse out brake dust, rust, and other corrosion buildup.


10. Return to the caliper slides and bring them to the bench grinder. Clean the smooth surface of the slides on the wire brush wheel thoroughly until smooth and shiny.


11. Replace the protective rubber boot slides onto the caliper. Apply a liberal coat of antiseize lubricant or silicone based brake lubricant to the caliper slides. In applications that combine the slide and bolt, do not place the lubricant on the threads of the bolt and set them aside. In applications that use separate slides and bolts, insert the slides into the caliper and make sure they move smoothly back and forth.


12. Lower the vehicle and test drive.


Place the caliper over the pads and rotor. In applications where the pads clip to the caliper, install the pads first; inboard pad into the caliper piston bore, and then the outboard pad.


14. Replace the caliper bolts and tighten to torque specifications for the vehicle.


15. Replace the brake hose and the banjo bolt. It is recommended to replace the copper washers on both sides of the banjo bolt. Tighten the bolt according to torque specifications for the vehicle. Remove the brake hose crimp. Repeat steps 2-15 for the other caliper(s). Bleed the brake system when complete.


16. Replace the wheel(s), lug nuts or studs, and hubcap(s). Be sure to torque the lug nuts or studs to proper specifications for the vehicle. Replace the caliper bridge and bolts. Torque the bolts to specifications required for the vehicle with the torque wrench and a socket. Replace the pads in the bridge if applicable.13.