TM 10-3930-669-20 b. Installation. (1) Install  engine  oil  pressure  sensor  (5) in heater valve (6). (2) Install  wire  (4)  on  engine  oil  pressure sensor    (5)    with    washer    (3),    lock washer (2), and nut (1). NOTE Follow-on Maintenance: • Connect batteries (Para 7-48). • Close engine access cover (TM 10-3930-669-10). • Close cab door (TM 10-3930-669-10). • Remove wheel chocks (TM 10-3930-669-10). END OF TASK 7-95