TM1O-393O-66O-20 17-4. REAR WINDSHIELD WIPER ASSEMBLY -  REPLACE  (Cont‘d) b. Disconnect three female spade connectors (11) of vehicle wiring harness (12) from three male spade connectors (13) on shaft side of motor (2) . c. Remove motor (2) from vehicle. INSTALLATION Electrical connections to motor (2) must be made before mounting motor (2) on cab (8). 1. CONNECT ELECTRICAL WIRING AND POSITION REAR WIPER MOTOR (2) ON CAB (8). a. Connect three female spade connectors (11) of vehicle wiring harness (12) to three male spade connectors (13) on shaft side of motor (2). b. Position and support motor (2) on cab  (8). 2. INSTALL REAR WIPER MOTOR (2) MOUNTING HARDWARE AND REAR WIPER ARM (1). a. Install new lockwasher (10), and screw (9) to secure motor (2) to cab (8). b. Install washer (6) and hex nut (5) . c. If removed, secure wiper blade (4) to wiper arm (1) with nut (3). d. Push wiper arm (1) on shaft of rear wiper motor (2). 3. CONNECT NEGATIVE BATTERY CABLE, PARA.  8-44. 17-9