Measuring the brakes on a semi truck is an important part of regular maintenance and safety. There are three main types of brake measurements that need to be done: lining, drum and slack adjusters. Each type of measurement requires specific tools and procedures that must be followed.
Lining Measurement: The lining measurement should be done first, as it is the most important when it comes to overall brake performance. This measurement should be done on all four wheels of the semi truck.
To measure the lining, you will need a brake gauge or micrometer. Place the tool over the brake lining and note the thickness in millimeters. You want to make sure that there is at least 3mm of wear left in the lining before you replace it.
Drum Measurement: The drum measurement should also be done on all four wheels of the semi truck. It is important to check for any cracking or warping in the drum as this can lead to decreased braking performance.
To measure the drums, you will need a drum depth gauge or micrometer. Place the tool over the drum and note its depth in millimeters.
Slack Adjuster Measurement: The slack adjuster measurement should also be done on all four wheels of the semi truck. This process ensures that there is enough tension in your brakes so they can perform properly when needed.
To measure slack adjusters, you will need a torque wrench or torque stick. Place the tool over each slack adjuster and note its tension in foot-pounds.
Conclusion:
Measuring brakes on a semi truck is an important part of regular maintenance and safety. It involves measuring three main components: lining, drums and slack adjusters, with specific tools being used for each component. Following these steps regularly can help ensure safe operation of your semi truck and maximize its braking performance when needed.
