Fuel metering pump delivery quantity, testing fuel delivery of stationary heater - AD83.70-P-7000-01A

Model 129 as of 01.06.97 

	Scope of test	Measuring instrument/Test connection	Operation/Requirement	Specified value	Possible cause/Remedy
1.0	Stationary heater fuel metering pump (Y23)  Delivery quantity	100 ml measuring cylinder	Disconnect fuel supply line at heater unit and insert into the measuring cylinder Press instant heat button ↓ Green indicator lamp illuminated Wait for malfunction shut-down with single repeat start (approx. 7 minutes) Switch off engine Determine quantity of fuel in measuring cylinder.	9 12 ml	Stationary heater fuel metering pump (Y23) Stationary heater/heater booster control module (A6n1)