If MTS is not working, add the brake efforts from each wheel for the system that is being tested and carry out the following calculation: On the first run, just before the wheels are on the plate high friction surfaces, apply a light constant pressure to the brake pedal. Do not stop on the tester. Take note of the way the brake efforts fluctuate.

6802 Brake Fluid Boiling Point Tester - Laser Tools 6802 Brake Fluid Boiling Point Tester - Laser Tools

b) Time taken to build up air pressure/vacuum to safe working value not in accordance with the requirements ii) the braking effort from any wheel is less than 50% of the maximum effort recorded from the other wheel on a steered axle A brake disc or drum must be significantly worn before you should reject it. Being worn below the manufacturer’s recommended limits is not a reason in itself. Defect

A brake pedal without a rubber usually has grooves or raised sections to provide grip in wet conditions and should be rejected if it’s worn smooth. However, some vehicles may have been manufactured with a brake pedal which did not incorporate grooves or the fitting of an anti-slip material and these should not be rejected. Drive the vehicle on a level road at a steady speed of approximately 20mph (32kph) and progressively apply the parking brake to maximum. Decelerometer brake testing must always be carried out on suitable roads with as little traffic as possible. A particular public road should not be used for tests so frequently that it could cause complaints from residents. Using a gradient tester For Class 5 use the lesser of the DGW or maximum authorised mass (MAM) from the manufacturer’s plate. On vehicles where only the ULW is displayed, you must calculate the DGW by multiplying the number of passenger seats by 63.5kg and adding the ULW, for example: 52 seats × 63.5kg = 3302kg + 5,250kg ULW = 8552kg. The PTE is undoubtedly a great option if you are looking forbrake fluid tester reliability. It is calibrated to make it easier to read and interpret results and is also cheaper than most of the other options. It also works by showing the percentage levels of water in the fluid. A percentage of 4 or 3 tells you that you need to be draining the brake fluid and replace it with a new one.

best practise guide to brake fluid testing A full best practise guide to brake fluid testing

The Draper was equally precise, but the number of options offered could put off a novice mechanic. Sealey’s high-quality VS0274 could have come closer if it had the ability to test DOT3 and 5.1 fluid. General ease of use was rated by using the testers in several cars. Instructions and the ability to test different grades of fluid were also taken into account. Prices were less of a consideration for such safety-critical tools, but were factored in nevertheless. VerdictAn electronic parking brake (EPB) may apply automatically in certain conditions, such as when the ignition is switched off or when the driver’s door is opened. Testers should be aware of this throughout the test. These vehicles must instead meet the secondary brake test requirements. For details see Section 1.3.1 and 1.3.2.

How to Check Brake Fluid | Halfords UK

Admittedly, it doesn’t provide the same level of detail as other testers here, but for the less confident DIY mechanic, it could actually be ideal. After completing the rear calipers, make certain the front calipers are also properly functioning and free of air bubbles by bleeding the front calipers, starting also furthest from the master cylinder, and finishing closest to the master cylinder.The over-centre lever type can be brake tested as normal using one of the approved test methods. Defect You must inspect any additional braking device fitted, such as an electric or fluid retarder or an exhaust brake. Position the wheels of the first axle to be tested in the brake rollers and then run both sets of rollers together in a forward direction until the vehicle is aligned. With the rollers still running, note whether a significant brake effort is recorded from any wheel without a brake being applied. It is recommended that you utilize thebest brake fluid testerbecause moisture content varies depending on the type of brake fluid, driving environment, and the vehicle’s performance design. However, with so many tools to choose from, it can be a difficult decision, but this article has done all the hard work for you.