Attention: The brake fluid used as a working fluid in the clutch drive path is one of the toxic and chemically aggressive compounds and, in contact with body panels, destroys the paintwork. Before proceeding with the procedure, cover the wings and front panel of the car with special covers, or just old blankets. Bleed the brake system while wearing goggles. If brake fluid accidentally gets into your eyes, rinse immediately with plenty of water and seek medical attention!
Attention: If the slightest amount of mineral oil gets into the brake fluid, the clutch will fail!
1. The hydraulic clutch release must be bled each time the components are removed or when the fluid level in the reservoir drops enough to allow air into the master cylinder. When bleeding, use only fresh brake fluid of the required grade (DOT-4). Make sure that the union connections of the hydraulic clutch path are tight.
Attention: Do not reuse liquid pumped out of the system, as well as liquid stored for a long time in a loosely closed container!
2. The hydraulic path is bled through a special connection using a set of special equipment that is used to bleed the service brake system.
4.2 Connecting the clutch bleeding kit: 1. Adapter; 2. Fixture MKM-6174-2; 3. Fixture MKM-6174-1; 4. Clutch for pumping
Attention: Manual bleeding of the drive on models equipped with ABS is not allowed! The general connection diagram of the kit is shown on Ref. illustrations - before using the kit, carefully read the instruction manual for its operation. The pumping equipment must be able to withstand an internal pressure of at least 2 bar.
3. On models equipped with Y30DT/Z20NET/Z19DT engines (H), first remove the battery from the pallet (see chapter 5). Remove the master cylinder reservoir cap and fill the reservoir with fresh hydraulic fluid, bringing the level to the MAX mark. Connect a special adapter to the tank (see illustration 4.2) and attach the MKM-6174-2 device to it - lower the free end of the hose into a suitable drain container. Remove the protective cap of the bleed connection and connect the MKM6174-2 tool to it. Connect the other end of the device to the pumping device.
4. Turn on the pumping device, turn the clutch (see illustration 4.2) 2-3 turns, this will open the valve for pumping. Bleeding should be continued until no more air bubbles come out of the drain hose. Hand tighten the coupling, turn off the bleeder and remove the adapter from the brake fluid reservoir.
5. If necessary, pump the hydraulic line between the docking station and the clutch slave cylinder, for which connect the MKM-6174-2 tool to the MKM-6174-1 and lower the free end of the hose into a drain container with brake fluid. Ask an assistant to fully depress the clutch pedal and keep it pressed. After unscrewing the coupling, open the bleed valve until air / air bubbles exit the tract. Hand tighten the clutch, and pull out and set the clutch pedal to the normal position. Wait about 5 seconds and repeat the above operation 4 more times.
6. At the end of the procedure, tighten the coupling with a force of 5 Nm and remove all installed components. Remove traces of brake fluid leaks. Reinstall the battery (if filmed). Check the clutch drive for proper operation and all drive components for leaks.
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