REFERENCE INFORMATION ENGINE THROTTLE CONTROL CIRCUIT

ENGINE THROTTLE CONTROL CIRCUIT DIAGNOSTIC FLOWCHART - TM-5-3895-373-20_290

ENGINE THROTTLE CONTROL CIRCUIT DIAGNOSTIC FLOWCHART - TM-5-3895-373-20_292

TM-5-3895-373-20 Bituminous Distributor Body M918 Model D-63 Manual
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TM 5-3895-373-20 REFERENCE INFORMATION ENGINE THROTTLE CONTROL CIRCUIT Refer to TM 5-3895-373-10 for engine starting and equipment operating procedures. Refer to paragraph 2.10 for connecting and disconnecting STE/ICE-R test set to DCA. Open right access door per TM 5-3895-373-10 to gain access to throttle actuator. Refer to the electrical system diagram at the end of the manual for equipment wiring details. 12 vdc control voltage should be at harness connector terminal with throttle control switch in either IDLE or MAX position. If paving machine starts, circuit breaker CB1 is conducting +12 vdc to the neutral start circuit. Thereby, if throttle control switch circuit loses voltage, problem must be throttle actuator, switch, or open wiring. Holding engine throttle control switch in IDLE position provides 12 vdc to drive the actuator motor. In MAX position, polarity to the actuator motor is reversed. Refer to paragraph 7.21 for harness and lead wire repair. Remove gauge panel per paragraph 7.6 to gain access to throttle control switch terminals. 2-237

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