A sliding pin body is adjustably held on the tubular body by a set screw and carries a removeable pin which engages a slack adjuster arm or equivalent throughout its movement. The movement is displayed on the indicator as the tubular body is moved uncovering the indicator for a reading of ...
slack adjuster during air brake adjustment, and an arm having a hook portion that hooks around the slack adjuster to obtain leverage for retracting the slack adjuster to measure piston rod clearance and then making the required brake adjustment by turning an adjustment nut on the slack adjuster.BE...