TM 10-3930-664-10 Location Item Interval Item to Procedure Not Fully Mission No. Check/ Capable If: Service DASH PANEL 13 Before Gauges Check for broken, missing or One or more gauges unreadable Engine Oil Pressure, missing or broken. Transmission Oil Temperature, Engine Water Temperature, or Ammeter gauge. 14 During Lights and Horn Check that head, tail, flood, blackout lights and horn are working. 15 During Low Oil Pressure Check that oil pressure indicator Low oil pressure indicator Indicator Light and light is not lit.  Check oil pressure is lit.  Oil pressure gauge Oil Pressure Gauge gauge for normal reading of 30 - in red zone. 60 psi (207 - 414 kPa). 16 During Indicator Lights Check that "front diff is locked" or Indicator lights are lit "park brake" indicator light is lit when switches are OFF. only when the "front diff lock" or Indicator lights are not lit "park brake" switch is ON. when switches are ON. 17 During Gauges Check for proper indication and operation. Ammeter: Should indicate in the Indication is in red zone. green zone (positive (+) charge). Engine Coolant Temperature: Indication is in red zone. 180° - 210° F (85° - 99° C). Transmission Oil Temperature: Indication is in red zone. 150° - 240° F (71° - 115° C). 18 During Travel and Range Check that lever operates Lever is difficult to move Select Lever smoothly and correct gear and or correct gear is not direction are engaged. engaged. 19 During Back-up Alarm With engine running, check that alarm sounds when transmission control is placed into reverse. 20 During Parking Brake With engine running, check that Parking brake does not parking brake engages when hold 4KRTFL. switch is placed to ON position and 4KRTFL does not move when transmission control is placed into forward or reverse gear. 2-21