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Rob, There is no differnce on adjusting a clutch brake on a Mack than any other truck. First, you must make sure the clutch has been or is adjusted properly. Then, you adjust the clutch brake. Adjusting the main clutch is internal in the clutch. To adjust the clutch brake you adjust the linkage(shorter or lengthen) to just touch the clutch brake when the linkage is free or released. Another person to help you with this is very helpful. Have one person under the truck with a light to monitor adjustment and another to adjust the linkage. If you have any more questions feel free to ask. |