NANO

510 BRAKE SYSTEM NOTE: It may be advantageous to bleed the entire system with the engine running for booster fitted vehicle. 4. Work on brake pedal for fullest strokes, till pedal feels hard. Hold the brake pedal . 5. Open the bleed screw by 1/2 to 3/4 of a turn, sufficient to allow the brake fluid to flow freely and till your foot touches the floor. 6. Retighten the bleed screw and again start pumping brake pedal. 7. 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. 8. Once the clear flow of brake fluid flows through tube, tighten the bleed screw to specified torque and refit dust cap. TIGHTENING TORQUE FOR BLEED SCREW NUT = 0.5 - 0.8 Kg-m CAUTION: Over tightening of bleed screw leads to breaking of screw which may cause to replace a wheel cylinder assembly. 1. Carefully clean all dirt from and around the filler cap. Check the brake fluid level in the reservoir; it should be above min. and below max. level. Top up brake fluid accordingly if found belowmin. level. 2. Before commencing bleeding at each bleed screw, remove the dust cap and clean thoroughly. 3. Attach the transparent (Vinyl) bleed tube to rear left bleed screw and place the other end of the tube in a clean glass jar containing sufficient brake fluid to submerge the end of the tube. NOTE: Ensure that the fluid level in the tandemmaster cylinder reservoir does not fall low enough to cause air to be drawn into the system, throughout the bleeding operation. 9. Repeat the same procedure on rear right, front left and front right wheel cylinder respectively. 10.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. If pressure bleeding is done, the engine need not run (For booster fitted vehicle). But the sequence of bleeding operation should still be rear left, rear right, front left and front right only.