TIGOR EV_ZIPTRON_SERVICE MANUAL

BRAKES 30 6. Click on the start button on the diagnostic tool to start the process. 7. Depress the pedal completely, holding it depressed. 8. Open the front left caliper bleed screw . 9. Press the OK button to start bleeding the rear left wheel. 10.The tool will start bleeding the rear left wheel. 11.When the tool finishes bleeding the rear left wheel, pump the brake pedal until the fluid flowing out is free of air bubbles; Close the bleed screw, Press “OK” to continue bleeding the Front Left wheel. 12.Continue to bleed the remaining wheels; the diagnostic tool will follow the following sequence. NOTE: It is always better to close the bleed screw at the end of each downward pedal stroke to ensure full recuperation of brake fluid in the system. There should be an interval of 3 to 4 seconds before making the next stroke. This action should be repeated until bubbles of air cease to appear at the end of the bleed tube. Close the bleed screw immediately after the last downward stroke of the pedal. Whilst the pedal is thus held, securely tighten the bleed screw to recommended tightening torque and remove the tube. Replace the dust cap on the bleed screw. Ensure that the fluid level in the master cylinder reservoir does not fall low enough to cause air to be drawn into the system, throughout the bleeding operation. Repeat the same procedure on the rear right wheel cylinder, followed by right caliper followed by the rear left wheel cylinder. If the bleeding of any cylinder continues without success for a considerable time, it may be that air is being drawn in past the bleed screw threads. In such instances, the bleed screw should be closed at the end of each downward stroke of the pedal, allowing the pedal to return fully to its stop before re-opening. Tighten the bleed screw finally after the last downward stroke of the pedal. Replace the dust cap on the bleed screw. After completion of bleeding, apply the brake pedal hard and check for any leak at the joints and bleed screws. Also check the brake pedal for “sponginess”, If found spongy repeat the complete procedure of bleeding. BRAKE FLUID LEVEL INSPECTION: After completion of brake bleeding check the brake fluid level in the reservoir. The fluid level should be between MIN and MAX level indicated on the brake master cylinder reservoir. If the warning light lights during Engine ON condition replenish fluid to MAX line. Never use container which has been used for mineral oil or which is wet. Always keep all brake fluid container capped to prevent contamination. SERVICING OF MASTER CYLINDER Note - Servicing of the fixed seal master cylinder internal parts are not recommended and if a major fault is apparent, a new complete guaranteed unit should be fitted.