When checking the mounting pads on a backing plate, what range should they be in?

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Multiple Choice

When checking the mounting pads on a backing plate, what range should they be in?

Clearance between the mounting pads and the backing plate needs to be small and even so the pad sits correctly on the plate and can move slightly as the braking forces change. The target is about half a millimeter, which provides enough room for proper seating without allowing the pad to wander or rub, while still keeping the pad from binding. If the gap is too large, the pad can shift and cause noise and uneven wear; if it’s too small, the pad may bind or seize as it expands with heat. To check, measure the gap at several points with a feeler gauge and ensure the readings are uniform and within the specified half-millimeter range. If not, service the assembly to restore proper alignment.

Clearance between the mounting pads and the backing plate needs to be small and even so the pad sits correctly on the plate and can move slightly as the braking forces change. The target is about half a millimeter, which provides enough room for proper seating without allowing the pad to wander or rub, while still keeping the pad from binding. If the gap is too large, the pad can shift and cause noise and uneven wear; if it’s too small, the pad may bind or seize as it expands with heat. To check, measure the gap at several points with a feeler gauge and ensure the readings are uniform and within the specified half-millimeter range. If not, service the assembly to restore proper alignment.

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