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12-4-snyatie-kapitalnyjj-remont-i-ustanovka-supporta-diskovogo-tormoznogo-mekhanizma.html
12.4. Removal, major maintenance and installation of a support of the disk brake mechanism
Components of assembly of a support of the brake mechanism of back wheels (for forward wheels the same)
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The dust created by brake system, can contain the asbestos harmful to your health. Never delete it by means of the compressed air and do not inhale it. At work with brakes it is necessary to put on a special filtering mask. Never, under no circumstances, use solvents on the basis of gasoline for washing of details of brakes. Use only a cleaner of brake system! |
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If there was a need of major maintenance (usually owing to leakage of liquid), before the beginning of work investigate all parameters of system. In many shops of auto parts it is possible to get the repaired supports on the basis of an exchange that will essentially facilitate to you work. If all of you decided to repair supports, before the beginning of work make sure that at your order there is a special set for repair. Always repair supports in pair - never do it from one them them. |
Removal
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- Release bolts of fastening of wheels, поддомкратьте a front or a back of the car and reliably establish it on axial support. Remove a wheel.
- If you remove a support only to provide access to other components, there is no need to disconnect the brake line. If you remove a support for the purpose of its major maintenance, disconnect the brake line from a support, it is desirable using a special cap (brake) wrench not to damage fittings. Stop up a tube to prevent pollution of brake system and leakage of brake liquid.
- Following instructions in the Section Replacement of blocks of disk brake mechanisms, remove a support is a part of procedure of replacement of brake shoes.
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The support of the brake mechanism of back wheels has a design similar to a design of a support of the brake mechanism of forward wheels. |
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Major maintenance
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- On all supports remove a lock ring of a dustproof cover, then remove a dustproof cover. Before taking the piston, place wooden whetstone between the piston and a support to protect them from damages at extraction.
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- To take the piston from a support, submit the compressed air to a place of accession of a brake hose on the support case. Use only low pressure, for example, from the foot pump, for piston extraction from the cylinder.
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Be careful, watch, that your fingers did not get between the piston and a support since the piston can leave with a significant force. |
- Survey surfaces of the piston and a wall of the cylinder of a support. If there are any scratches, cavities, a rust or light spots, completely replace support knot.
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- If these components in a good condition, take a piston cuff from the support cylinder by means of the wooden or plastic tool. The metal tool can damage a cylinder surface.
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- Remove directing fingers or bolts of a support and then rubber dustproof covers.
- Wash out all components in methyl alcohol or in a cleaner of brake system.
- By means of a special set for repair from your car disassemble a support as it is described below.
- Lower a new rubber cuff in pure brake liquid and establish it in the bottom flute in the support cylinder, having made sure that it is not overwound.
- On all supports, put on walls of the cylinder and on the piston pure brake liquid and at once establish the piston into place. Do not press strongly on the piston at installation, at first make sure that it correctly rose into place, and then is firm, but is not strong, press it against the stop. Establish a new dustproof cover and a lock ring.
- Grease sliding surfaces of directing fingers or bolts with greasing on the basis of silicone (it usually is available in a set), establish them in a support. Establish dustproof covers.
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Installation
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