TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
Page 398 of 1205
* TM 9-2320-387-24-l INSTRUMENTS CIRCUIT KNOWN INFO WIRING OK POSSIBLE PROBLEMS GAUGE SENDING UNIT KNOWN INFO WlRlNG OK POSSIBLE PROBLEMS GAUGE SENDING UNlT RECONNECT WIRE 27H AT THE OIL PRESSURE GAUGE. DISCON- NECT WIRE 36A AT THE OIL PRESSURE SENDING UNIT. WITH THE ROTARY SWITCH IN THE RUN POSITION, DOES THE GAUGE READ OFF SCALE ABOVE 120 PSI (827 kPa)? DIAGNOSTIC FLOWCHART r OPTIONS TRY IT. REASON FOR QUESTlON This will detemine if the gauge can respond to an input signal. TEST OPTIONS WITH THE ROTARY SWITCH IN TRY rr. THE RUN POSITION, SHORT WIRE 36A TO ENGINE GROUND AT THE OIL PRESSURE SENDING UNIT. DOES THE GAUGE READ AT OR BELOW ZERO? REASON FOR QUESTION This will determine if the I gauge can respond to an . . 2-344