TM   9-2320-273-20 5-29.   SENDING   UNITS,   SWITCHING   DEVICES   AND   WINTERIZATION   KIT MAINTENANCE   TASK   SUMMARY. INITIAL  SETUP EQUIPMENT CONDITION APPLICABLE CONFIGURATIONS PARAGRAPH CONDITION DESCRIPTION All. 4-42A. Radiator Drained Below Actuator Level. TEST EQUIPMENT 5-37A. Batteries Disconnected. None. 6-9A. Transmission  Oil  Drained. SPECIAL TOOLS 6-9C. Cab Floor Inspection Plate Removed. None. 9-13A. Air  Reservoir  Drained. MATERIALS/PARTS  (P/N) Liquid Teflon (Refer to Appendix C). Gasket,  Fuel  Level  Sending  Unit  (2013). Container (Approx. 2 gal). 30 Amp Circuit Breaker. 15 Amp Circuit Breaker (3). Gasket  (1020803). PERSONNEL REQUIRED TWO (MOS-63B20). REFERENCES  (TM) TM  9-2320-273-10. TM  9-2320-273-20P. SPECIAL  ENVIRONMENTAL  CONDITIONS REFERENCES    (TROUBLESHOOTING) Vehicle Parked on Level Ground. Table 6-1, 5-6, 5-12, 5-7, 12-2, 5-3, 5-11, 5-14. GENERAL  SAFETY  INSTRUCTIONS Engine  Off. Transmission  in  Neutral. Park Brake Set. LIST  OF  TASKS TASK TASK TROUBLESHOOTING NO. TASK REF REF (TABLE) 1 Oil  Pressure  Sending  Unit  Maintenance: 5-70 5-7 A. Removal. 5-70A B. InstalIation. 5-70B C. Operational  Check. 5-70C 2 Oil  Pressure  Switch  Maintenance: 5-71 5-6 A. Removal. 5-71A B. Installation 5-71B C.   Operational   Check. 5-71C 5-80