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of caliper. Piston sticking ......... A ........... Require rebuilding or replacement of caliper. Slide mechanism sticking ............... A ... Require repair or replacement of slide mechanism. (1) - Only required if the hydraulic system must be opened. (2) - Seized is defined as a bleeder screw that cannot be removed after a practical attempt at removing. Only required if the hydraulic system must be opened. CONTROLLERS See ELECTRONIC CONTROLLERS. DIGITAL RATIO AXLE CONTROLLERS AND BUFFERS (DRAC AND DRAB) DIGITAL RATIO AXLE CONTROLLER AND BUFFER INSPECTION Condition Code Procedure Connector broken ........ A .. Require repair or replacement. Connector (Weatherpack type) leaking .......... A .. Require repair or replacement. Connector melted ........ A ........ (1) Require replacement. Connector missing ....... C ............ Require replacement. Missing ................. C ............ Require replacement. Output signal incorrect . B .. Require repair or replacement. Terminal burned, affecting performance ............ A .............. ( 2) Require repair or replacement. Terminal burned, not affecting performance .. 2 .. Suggest repair or replacement. Terminal corroded, affecting performance .. A .. Require repair or replacement. Terminal corroded, not affecting performance .. 2 .. Suggest repair or replacement. Terminal loose, affecting performance ............ B .. Require repair or replacement. Terminal loose, not affecting performance .. 1 .. Suggest repair or replacement. (1) - Determine cause and correct prior to replacement of part. (2) - Determine cause and correct prior to repair or replacement of part. DISABLE SWITCHES See SWITCHES. DRUMS Determine the need to recondition based upon individual drum conditions that follow. Friction material replacement does not require drum reconditioning unless other justifications exist. DO NOT recondition new drums unless they are being pressed or bolted onto an existing hub. It is not necessary to replace drums in axle sets. However, when replacing or reconditioning a drum due to the conditions that follow, you may suggest reconditioning of the other drum on the |