Bleeding kit (no more than 2.0 kgf/cm2) is installed in place of the cover of the nutrient reservoir for the fluid of the brake-clutch drive system, work must be carried out in accordance with the instructions for using the device.
Bleeding the hydraulic clutch drive must be carried out in the following order.
Prepare fixture «21.5.030» and remove the rear of the engine accessory guard.
Loosen the nuts (18, see fig. 7.2), remove the slave cylinder (14) hydraulic clutch without disconnecting the pipeline. Install on the slave cylinder (1, fig. 7.5) fixture «21.5.030» and fully insert the stem (2) working cylinder piston with lead screw (3).
Connect the bleeder to the clutch reservoir. Install the bleed hose to the fitting (1, fig. 7.6). Hold the slave cylinder with a tool «21.5.030» in the position shown in figure 7.6. Unscrew the fitting (1), when the brake fluid flows without air bubbles, push the rod out a little (2) piston of the slave cylinder with the spindle and push it in again. Close fitting (1) for pumping if no air bubbles come out, otherwise repeat the whole process again.
Attention! Never remove the tool from the working cylinder «21.5.030», if the brake pedal is depressed, otherwise the piston with the rod may be pushed out of the working cylinder.
Switch off the bleeder and disconnect it from the tank. Slowly extend the stem (2, see fig. 7.5) working cylinder piston (1) using a device «21.5.030» and remove it from the working cylinder.
Install the slave cylinder on the gearbox housing, replace the self-locking nuts and tighten them to a torque of 22 Nm (2.2 kgf·m).
Check the brake fluid level in the hydraulic drive reservoir and top up if necessary.
In emergency cases, the hydraulic drive system is pumped through the fitting (15, see fig. 7.2) removal of air on the working cylinder of the clutch drive, without removing it from the manual transmission. Bleeding the hydraulic clutch drive in this case must be carried out in the following order.
Clean the working cylinder from dirt and put one end of the transparent hose on the fitting (15) pumping, after removing the protective cap (16). Lower the other end of the hose into a jar filled with 2/3 of the volume of brake fluid. Ensure that the end of the hose is constantly immersed in the liquid.
Check the level of the working fluid in the common supply tank of the systems and bring it up to the mark «max».
Attention! Constantly monitor the level of brake fluid in the reservoir and keep it at the mark «max», adding fresh fluid to the system. Work from work (brake) liquid to carry out in rubber gloves and a respirator.
The transparent hose can be pre-filled with brake fluid. Why close the bleed valve on the working cylinder. Have an assistant slowly depress the clutch pedal and hold it down. Open the bleed valve. The brake fluid will begin to force air out of the tube into the jar. Close the bleed valve and release the clutch pedal.
Press the clutch pedal 9 - 11 times to create a sharp back pressure on it. Lock the pedal down and open the bleed valve. The brake fluid will begin to flow into the jar, when the fluid no longer contains air bubbles, tighten the bleeder screw.
Repeat the process as many times as necessary to ensure that there is no air in the outgoing brake fluid. Screw in the bleed valve to 15 Nm (1.5 kgf·m), remove the hose and put on the protective cap (16).
Restore the brake fluid level in the supply tank of the system drive to the mark «max». Check the functioning of the brake system and clutch drive.
Removed brake fluid must be disposed of.
Attention! If during the test extraneous sounds are detected and there are comments on the functioning of the clutch (rattle, incomplete shutdown) it is necessary to contact the service station to bleed the system under pressure, because there could be air in the system.