LISTOFEFFECTIVEPAGES
Jan 10/90
SUBJECT
General Engine/CompressorWashing FieldCleaningEngine AircraftFinishCare Cleaning CleaningExteriorSurfaces
PIPER AIRCRAFT
PA-42-720 (Advanced Trainer)
MAINTENANCE MANUAL
CHAPTER 12 -SERVICING
TABLE OF CONTENTS
CHAPTER PAGE
12-00-00 1 1 1 2 2 2
CleaningWindshieldand Windows 2 CleaningInterior
3
CleaningCarpets 3
CleaningToilet
4 CleaningSurfaceDeicingEquipment 4 CleaningLandingGear 4
12-10-00 Replenishing
1 FuelHandlingPractices 2 FillingFuel Cells 2 Jet FuelAdditives
2 MIL-1-27686JetFuel Anti-Icing Inhibitors 3 Biobor JF (Biocide) 3 DrainingMoistureFromFuelSystem 4 DrainingFuelSystem-Complete 4 ProcedureFor RemovingBiologicalFuelContamination 4 BrakeSystem 6 FillingBrakeSystemReservoir 6 DrainingBrakeSystem 6 LandingGearOleoStruts 6 FillingOleo Struts 6 InflatingOleo Struts 7 Tires
8 HydraulicPowerPack 8 Propellers 9 EngineLubrication 9 EngineOil Level Check 9 EngineOil ChipDetector 10 RemovalOf Chip Detector 10 Inspectionof ChipDetector 10 Installationof ChipDetector 10 DrainingEngineOil 10 ServicingOil Filter Elements 11
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CONTENTSPage 1
PIPERAIRCRAFT
PA-42-720 (Advanced Trainer)
MAINTENANCEMANUAL
CHAPTER 12 -SERVICING
TABLE OF CONTENTS (continued)
SUBJECT
Recommendationsfor Changing Oil
Oxygen System Oxygen System Safety Precautions Filling Oxygen Cylinder
ScheduledServicing Airframe Lubrication Application of Grease Application of Oil Lubrication Charts
Unscheduled Servicing Engine Accessory Drive Shafts -Lubrication
CHAPTER PAGE
12-10-00
13
13
13
14
12-20-00
1
1
1
1
2
12-30-00
1
1
EFFECTIVITY:
040-999
PAGE 2CONTENTS
Jan 10/90 CONTENTS
PIPER AIRCRAFT
PA-42-720 (Advanced Trainer)
MAINTENANCEMANUAL
Servicing
A. General
This chapter covers all routine servicing of airplane, scheduled and non-scheduled, including replenishmentof fuel, oil, hydraulic fluid, oxygen, tire pressure, lubrication requirements, servicing of oleo struts with air and oil, etc. Pay special attention to all WARNINGS or CAUTIONS.
B. Engine/CompressorWash
Due to accumulated environmental airborne chlorides which cause deterioration of compressor blades by a process known as sulphidation, Pratt & Whitney Aircraft recommends a compressor wash be carriedout weekly regardless of apparent atmospheric conditions. Pratt & Whitney Maintenance Manual, P/N 3034342 for PT6A-61 engine, gives full, detailed instructions to wash of engine and compressor. For specific Piper installations instructions, use following additional instructions:
CAUTION: BEFORE CLEANING, CABLES MUST BE PROPERLY SEALED TO PREVENT WATER FROM ENTERING CABLE HOUSINGS. DO NOT DIRECT ANY WATER PRESSURE AT THESE SEALS. WATER COULD FREEZE AND BIND CABLES UNDER CERTAIN CONDITIONS.
CAUTION: DO NOT USE TAP WATER AS INHERENT CHEMICALS CAN CAUSE DEPOSITS ON COMPRESSOR BLADES.
CAUTION: BE CAREFUL WHEN WASHING EXTERIOR OF FCU. DO NOT ALLOW WASH SOLUTIONTO ENTER VENT HOLES OF FCU, WHICH COULD GIVE FALSE INDICATIONOF FUEL PUMP LEAK.
CAUTION: OBSERVE STARTER OPERATING LIMITS OF 30 SECONDS ON, 60 SECONDS OFF, 30 SECONDS ON, 60 SECONDS OFF, 30 SECONDS ON, AND 30 MINUTES OFF.
CAUTION: RUN ENGINE WITH STARTER ONLY. ENSURE IGNITION IS OFF AND APPROPRIATEFUEL FIREWALL SHUTOFF VALVE IS CLOSED.
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