TM-9-2320-334-13&P LHST Operator, Field and Parts Manual M1147A1 Trailer Download
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TM 9-2330-334-13&P  ANTI-LOCK BRAKE SYSTEM (ABS) RELAY VALVE AND BRAKE  PROTECTION VALVE REPLACEMENT – Continued 0075 00  0075 00-13 Change 1  INSTALLATION – Continued  26. Connect two air hoses (3) to 90-degree fittings (4).  27. Connect ABC ECU connector (1) to relay valve cable connector (2).