Piper Aircraft Corporation Malibu Mirage PA-46-350P, Airplane Maintenance Manual

Page: 1534 / 1956

PAGE 2
Feb 28/07
7K16
81-20-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
CHART 1 (Sheet 1 of 3)
TROUBLESHOOTING TURBOCHARGER SYSTEM
Trouble Cause Remedy
Excessive noise or vibration. Improper bearing lubrication. Supply required oil
pressure.
Clean or replace oil line;
clean oil strainer. If
trouble persists, overhaul
turbocharger.
Leak in engine intake or Tighten loose connections
exhaust manifold. or replace manifold gaskets
as necessary.
Dirty impeller blades. Disassemble and clean.
Engine will not deliver Clogged manifold system. Clean all ducting.
rated power.
Foreign material lodged in Disassemble and clean.
compressor impeller or
turbine.
Excessive dirt build-up Thoroughly clean
in compressor. compressor assembly.
Service air cleaner and
check for leakage.
Leak in engine intake or Tighten loose connections
exhaust. or replace manifold
gaskets as necessary.
Rotating assembly bearing Overhaul turbocharger.
seizure.
Restriction in return lines Remove and clean lines.
from actuator to exhaust
bypass controller.
Exhaust bypass controller Have exhaust bypass
is in need of adjustment. controller adjusted.
Oil pressure too low. Tighten fittings. Replace
lines, or hoses, increase oil
pressure to desired
pressure.
Inlet orifice to actuator Remove inlet line at
clogged. actuator and clean orifice.
Exhaust bypass controller Replace unit.
malfunction.
Exhaust bypass butterfly Low pressure. Clogged
not closing. orifice in inlet to actuator.
Butterfly shaft binding.
Check bearings.