Checking The Hydraulic Unit Abs Operation With The Brake Tester
- Set wheels other than the one to measure free rollers.
- Prepare for the ABS sequence control operation.
< Refer to ABS SEQUENCE CONTROL . >
- Set the front wheels or rear wheels on the brake tester and set the select lever position to the "N" range.
- Operate the brake tester.
- Perform ABS sequence control.
< Refer to ABS SEQUENCE CONTROL . >
- When the hydraulic unit begins to work, check the following work sequence.
- The FL wheel performs decompression, hold and compression in sequence, and subsequently the FR wheel repeats the cycle.
- The RR wheel performs decompression, hold and compression in sequence, and subsequently the RL wheel repeats the cycle.
- Read values indicated on the brake tester and check if the fluctuation of the values between decompression and compression meets specification.PRESSURE SPECIFICATIONS
Front wheel Rear wheel Initial value 2,000 N (204 kgf, 450 lb) 2,000 N (204 kgf, 450 lb) When depressurized 500 N (51 kgf, 112 lb.) or less 500 N (51 kgf, 112 lb.) or less When pressurized 2,000 N (204 kgf, 450 lb.) or more 2,000 N (204 kgf, 450 lb.) or more - After the inspection, depress the brake pedal and check that it is not abnormally hard, and tightness is normal.