Troubleshooting
Teledyne Continental Motors, Inc.
TM
8-13.4. Boost Pump Relay Check
WARNING
Conduct this check in a well-ventilated area with no fuel
present to prevent ignition and combustion.
Procedure
1.
Fuel Selector Valve.................... OFF(CLOSED)
2.
Master Power Switch ....................................ON
3.
BPMS....................................................... AUTO
4.
Insert one pin test lead in
P6 pin N
P6 pin U (Fuel Pump 1). Firmly
place the opposite end of the pin test lead in contact with a clean airframe ground.
Listen for the electric boost pump, it should be audibly operating. Remove the pin test
lead from the airframe ground, the boost pump should stop.
B C
N P R
NOTE: The non-insulated end of the pin test lead wire will be
electrically energized while conducting this test. Use care to
prevent the lead end from coming in contact with conductive items
that could be damaged by electrical current.
5.
Insert one pin test lead in
P7 pin N
P7 pin S (Fuel Pump 2). Firmly
place the opposite end of the pin test lead in contact with an airframe ground. Listen
for the electric boost pump, it should be audibly operating. Remove the pin test lead
from the airframe ground. The boost pump should stop.
B C
N P R
6.
Insert one pin test lead in
P8 pin N
P7 pin U (Fuel Pump 3). Firmly
place the opposite end of the pin test lead in contact with an airframe ground. Listen
for the electric boost pump, it should be audibly operating. Remove the pin test lead
from the airframe ground. The boost pump should stop.
B C
N P R
7.
Master Power Switch ................................... OFF
8.
BPMS .......................................................... OFF
9.
Remove the pin test leads from the bulkhead connectors.
8-40
IOF-550 Permold Series Engine Maintenance Manual
1 April 2007
