Quote:
Originally Posted by sixto
Engine running, power to solenoid, no flow from diagram item 140 to diagram item Y9/1, line to engine shutoff actuator vented to diagram terminal a. Engine off, no power to solenoid, flow from diagram item 140 to diagram item Y9/1, line to engine shutoff actuator under vacuum from diagram item 140, no flow to/from line to diagram terminal a.
Sixto
87 300D
|
I've been working on mine. This isn't quite right. According to alldata, a relay N17/3 is actuated for for about 3 seconds (verified) after the engine is switched off and operates the key-operated engine stop switchover valve (Y9/1). A vacuum of about 500 mbar is present at this valve which when actuated/switched-over operates the the shutoff actuator pneumatically moving the control rod into the stop position.