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PIPER AIRCRAFT PA-42-720 (Advanced Trainer) MAINTENANCE MANUAL
CHAPTER 8 -LEVELING AND WEIGHING
TABLE OF CONTENTS
SUBJECT CHAPTER PAGE
Weighing 8-10-00 1
Leveling 8-20-00 1
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PIPER AIRCRAFT
PA-42-720 (Advanced Trainer)
MAINTENANCE MANUAL
Levelingand Weighing
A. Weighing
The airplaneisweighedas follows:
(1)
Positiona scaleand rampin frontof allthreewheels.
(2)
Securescalesfrom rollingforwardand towairplaneup ontoscales. (Referto 9-10-00.)
(3)
Removerampsto avoidinterferencewith scales.
(4)
Toweighor balanceairplane,levelairplaneusinginstructionsgiven in previoussub-system section.
Weighing
Figure 1
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PIPERAIRCRAFT
PA-42-720(AdvancedTrainer)
MAINTENANCEMANUAL
A. Leveling
Allairplaneconfigurationsare provided withlongitudinalandlateralleveling.The airplane canbe
leveledwhile on jacks, duringweighingprocedure,whilewheelsareon scales, oron the ground. To
levelairplanefor weighing or rigging, proceedas follows:
Tolevelairplanelongitudinally,withdrawtoolattachmentscrewsfrom right sideof aircraftatFuselage
Station87.5and66.5(approximately).Placeaircraftlevelingtool(P/N71587-3)in positionagainst
aircraftskin, secure withscrewspreviouslyremoved,and place spiritlevel on leveling tool. Deflate
nosewheelor adjust jacks until bubblein levelis centered.
/
C
LEVEL 0
F.S.87.5
I
F.S.66.5
Leveling
Figure 1
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PIPER AIRCRAFT PA-42-720 (Advanced Trainer) MAINTENANCE MANUAL
CHAPTER 9
LIST OF EFFECTIVE PAGES
CHAPTER SECTION PAGE DATE CHAPTER SECTION PAGE DATE
9-EFFECTIVITY 9-CONTENTS 9-00-00 9-10-00 9-20-00 1 1 1 1 1 Jan 10/90 Jan 10/90 Jan 10/90 Jan 10/90 Jan 10/90
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SUBJECT General Towing Taxiing
PIPERAIRCRAFT
PA-42-720(Advanced Trainer)
MAINTENANCEMANUAL
CHAPTER 9 -TOWING AND TAXIING TABLE OF CONTENTS CHAPTER 9-00-00
9-10-00
9-20-00
PAGE 1 1 1
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PIPERAIRCRAFT
PA-42-720(AdvancedTrainer)
MAINTENANCEMANUAL
TowingandTaxiing
A. General
Before towing or taxiingairplane,ground personnel mustbe informed by a qualified pilotor other personnelabouttow turninglimitsof nose gear,enginestartingand shutdown procedures,and any other system functionsrequiredto properly and safely movethe airplane. (Referto Figure 1)
TurningRadiusand Limits
Figure 1
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PA-42-720(AdvancedTralner)
MAINTENANCEMANUAL
A. Towing
CAUTION: When towing, do not turn nose gear in either directionbeyond its 40 degree arc from center. This results in damage to nose gear andsteeringmechanism.A placard is installedon nose gearstrut to indicateturn limits.
Theairplanecan be moved by using powerequipmentwhich will not damageorcauseexcessstrain to nose gearsteering assembly. Towinglugs are used as part of the nose gear fork. To pull the airplane ona hard level surface, approximately100 pounds of pull is required to start itsroll and approximately 60 pounds to maintain roll. When towing linesare necessary, lines are attached to both main gear strutsbelow the side brace link attachments.Linesmustbe long enoughtoclear nose or tail by not less than 15 feetand a qualified personmustride in the pilot'sseat and use thebrakesand nose wheelsteeringto maintaincontrol. A collapsibletowbar, located in the nose baggage compartment
fastenedtothe rear bulkhead,is removedby pulling it from friction retainers.
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A. Taxiing
Whenthe propeller propwash, exhaustblast,andtaxi areasare clear, startengines. Applypowerslowlyto start taxi roll andperformthe followingchecks:
(1)
Taxiforwarda few feet and applybrakesto determine effectiveness.
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