TM 10-3930-675-20-20079 00-6ELECTRONIC CONTROL UNITS (ECU) REPLACEMENT - CONTINUED0079 00HYDRAULIC SERVO SYSTEM ELECTRONIC CONTROL UNIT (ECU) REMOVALNOTEHydraulic servo system ECU is located in cab under driver’s seat. Hydraulic servo system ECU is identifiedas no. 790 on system electrical diagrams (WP 0199 00).1.Rotate three turnbuttons (15) and remove cover (17) from seat base (16).2.Slide electrical tray (22) outward from seat base (16).NOTEPerform step 3 for each of two connectors.3.Disconnect connector (19) from hydraulic servo system ECU (18) by sliding out red latch of connector.4.Remove four screws (20), washers (21), and hydraulic servo system ECU (18) from electrical tray (22).15161718161920,2122
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