Eccentrically mounted guide pin for air disc brake system and methods for the use and assembly thereof

An air disc brake system comprising:

• a carrier having a mounting feature;
• a guide pin comprising:
• longitudinally spaced first and second ends;
• a longitudinally extending through hole having a first center axis;
• and
• an outer cylindrical surface having a second center axis wherein the first and second axes are spaced apart a distance D such that the outer cylindrical surface and through hole are eccentric;
• a caliper comprising a longitudinally extending bore having spaced apart first and second ends, wherein the guide pin is received in the bore, and wherein the caliper is slidably mounted on the outer cylindrical surface of the guide pin;
• and
• a fastener disposed in the through hole and comprising a first end engageable with the mounting feature and a second end moveable between a non-engaged position, wherein the guide pin is rotatable about the first center axis, and an engaged position, wherein the fastener is engaged with and fixes the position of the guide pin such that the guide pin is non-rotatable about the first center axis;
• wherein an adjustment tool comprises an outer circumferential surface insertable into the caliper bore and a drive feature releasably engageable with a tool engagement feature.