McCauley Propeller Installation Operation and Maintenance MPC-11

7/17/2019 McCauley Propeller Installation Operation and Maintenance MPC-11

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1.

USE

OF

LOGBOOK

Propermaintenance

f

this

ogbook

s

the

owne/s

responsibility.

t

is

an

important

recorddesigned

or

he

owneds

nformation

and

protection.

lf the

propeller

s sold

or

installed

n an-

otheraircraft,he ogbook houldbe trans-

ferred

with

he

proPeller.

It is recommended

hat

he

maintenance

e-

lease

ags and

work

orders

be attached

inside

he back

cover

of

this

book.

f

a

copy

of the

work

order

s

not available,

he

repair

station

nd

work

order

numbers houldbe

referencedn the ogbook ntry.

All Airworthiness

irectives,

ervice

Bulle-

tins,and

Service

Letters

ave

been

com-

plied

with

at

the

ime

of

production.

2 .

3.

4.

O



This

manual

rovides

nstallation,

peration,

nd

maintenance

nstructions

or he

C200 ndC400 erieshreadless,onstantpeed ropellersamufacturedy

McCauley

ropellerystems.

ilcCauley

ropeller Ystems

P.O.Box7704

wtcH|TA,

S

67277

Sales nd

Marketing

316'8314021

Product uppottlEngineering

316'8314021

AllDepailments

FaxNumber

800.621.PROP

7767)

31S831.3858

page

i

July/00



McCauley

ropgllerystems

Revision

Number

pagg

l

July/00

Revised

Pages

Descrlptionf Revislon



McCauley

ropeller

ystems

MPO11

Table

of

Contents

Toofc

Sectlon

1

.

lntroductlon

1.

Introduction

Sectlon

2

-

Addltlonal

Referonce

Malerlals

1. Addltional

efarence

Materlals

Paoe

Number

Sectlon

3

-

Propetler

ystem

Oescrtptlon

nd

Operatlng

Prlnclples

1-',

2-1

1. Propeller omponent escrlptlon

2. Propeller

Model

Deslgnatlon

3.

Operating

dnclples

4.

Overhaul equir€monts

Sectlon 4

.

Propeller

Fleld

Malntenance

Practlces

1. Propeller

nd

SplnnerRemoval

nd

nstrallaUon

2.

Blade

Malnt€nance

3,

Propeller

flke

4. Prop€ller

ntemal ubrlcatlon

5. DelceMalntenance

6.

Cleaning

Ssctlon.

.

Propeller

Perlodlc

nspectlon

Practlcos

1. Propeller

erlodlc

nspection

Sectlon

6

.

Troubleshootlng

1. Types

of Problems

ormally ncounterecl

Sectlon

7

.

Propellor

Alnrorthlness

Llmltatlons

1. Service lfe

2. lnspection

3, LogBook

3-l

3-2

3.4

3-6

4-1

4-5

4-10

4-1

3

4-13

4-14

5-1

6.1

7-1

7-1

7-1

Listof

llustratlons

Flqure Number Floure Tltle

Paoe

Number

3-1

Ol00

SerlesCutaway

3-5

4-1

FleldBladeRework

Crlterla

1

of

2)

4-o

4-1

FleldBlade

Rework

Crlterla

2

ot 21

4-l

6-1

Adjustment

f

Gov€rnor

Stop Scr€w

6-5

page

ll

July/00



o

THISPAGE NTENTIONALLY

EFTBI.AT{K



McCauley

ropeller

ystems

MPC11

Sectlon

SECTION

1

.

INTRODUCTION

1, Introductlon

Thls

operato/s

anual

rovldes

nstallatlon,

peration,

roubleshooUng,nd

llne

maintenancenstruotions

or

he

C200 nd

C400 erles

ropellers.

hese

constant

peed

ropellers

re

manufactured

y McCauleyropellerystems;

Vandalla,

hlo,USA.

NOTE: Thepropellermodelnumbers stamped n thepropeller uband

ls

referenced

n

all

publlshed

eMce

nformatlon.

The

propeller

part

numberls

eferenced n decal

on

cyllnder,

n

gal€s

docum€nts uch

as the

McCauley

rlce

Llst and

s

used or

propeller

rderlng

purposeg.

The

purpose

f thls manual

s to famlliarlze

wnersand operatorswith

the

outstandlng

eslgn

eatures nd operatng

characteristics

f

the

propeller.

All

maintsnan@

nd seMco

prooadures

uthorlzed

y thls manual houldbe

performed

nly by

quallfied

srsonnel.

Overhaul nd Intemal

propeller

epalroperatlons,

hen

required,

hould

be

und€rtaken nly by

authorlzed

nd

quallfied

ropeller

hops,and

In

accpr-

dance

wlth

he instrucUonsontrained

n the approprlate.McCauley

ropeller

overhaul

manual.

NOIE:

All

InformaUon

ubllshed

n this

manual s

cunent

at the ime

of

printing,

t

ls

subJect

o change

hrough

evislons

r otherservice

Information.

page

1-l

July/00



McCauley ropeller

ystems

MP?r'l'l

Sectlon

SECTION

.

ADDITIONALEFERENCE

ATERIALS

1.

AddltlonalReferenceMaterlals

The

ollowlng

ocumentsontalndditlonal

nformatlon

n hls

nd ther

McCauley

ropellers.

These

documents

may

be

used

as

a rsference

whenever

€rformlng

verhaul,

malnt€nance

r

repalrs.to

he

propeller'

A.

McCauleyOverhaul

Manualc

lnclude

overhaul nstructlons nd

parts

lsts. lt also

provldes

mlnlmum

llowable

ldthand ilc,kness ata

for

blades,

lntended or

use

by approved

pmpeller

epairstatlonsonly.

B. McCauleyPropeller

and De.lce

Sptem

lnctallatlon Llst (MPG'5)

-

congolldates

nfomatlon

publlshed

n FAI/CM

alrcrafr

ype certlficat€

datasheets

with

regard o

propeller,

plnner,

elce

systems'

and

gowmor

Installatlons

n varloug

alrcraft.

Not

to

be

used

n

placa

of

FAflCM

alrcraft

type

certllicate.

G. Mccauley Servlce

Bulletlns

-

lssued

o

advlse

of

propeller

eslgn

changes hat should be Incorporated,

o

prwide

procedures

or

con€ctlng

roblems

hal have

dev€loped

n

the

leld,and or other

lmportantnformatlon.

McGauley

Servlce

Lefierll

-

lssued

o

provlde

nformaUon

uch as

unnanty

eplacemsnt

olld€,

parts

at/allablllty

nformatlon,

lnor

modlflcaUons,nd other

supplomontal

nstructlons.

FMTCAA Alrcraft

Type

Certlflcate

Data Shetr

-

Provlde

propeller

model,dlameter, nd

blade

angle

settngs

approved

or

a

speclllc

alrcraftmodel.

FM/CAA Propeller

Type

Carilflcal€

Data

Sheet

-

providesgen€ral

approval ata orpropellermodels.

FAA Advlsory Clrcular

43.13-lA

-

provides eneral

accePtabl€

malntenance

rocedures

or

propellers.

FAA

FAR43,

AppendlxA

-

defines

differences etween

mlnor

and

maJor

propeller

epairs

maJor

epaln

maybe

performed

nlyby an

approved

ropeller

epairstraUon).

Alrcraft Manufacturefs Malntenance

Manual

-

,n addluon

o

provtdlngmucltof the Informatlonontralnednthlgmanual,healrcraft

malntsnanco anual

ontalns ddltional

rop€ller

ystgm

nformauon

speciflc o

a

partlcular

lrcraft

ppllcatlon.

page

2-l

July/00

D.



McCauley

rop€ller

ystems

MPO11

S€ctlon

SECTTON. PROPELLERYSTEM ESCRIPTION

ANDOPERATING

RINCIPLES

1.

PropellerComponentDescrlptlon

TheMccauley

ropeller

onslsts

f

a

hub ssembly,

ropeller

lades,

lston

and cyllnder

ssembly,

nd

splnner

assembly.

lf

propeller

elce s

Installed

he componentg

nclude:

lectrlcally

eated

ubber

bootg,delcehamesses, sliprtngassembly, delce lmer,anda brushblock

assembly.

he

brush

block,

d€lc€

hamesses,

nd

sllp

rlng

assembly

onduct

elEctrtcai

ower

o

the

propeller

lade

delce

boot

elements

wttlch

hen heat

o

removece

from

he

propeller

lades.

The

followlng

s

a

breakdown

l each

of

lhEse

propeller

ssembly nd delce

componsnts:

A.

Propeller

Hub

AssemblY

Thepropeller ub s a slngleplece,hollowassemblyncorporatlng

propellei

lade

sockets.

The

propeller

lade

sockets

are

o-rlng

sealed

to

prev€nt

eakage.

The rear

hub

ace

has

threaded tuds

or bolts or

attachm€nt nd

dowels

for allgnment

Thls ensures

proper

mountlngo

th€ €nglne

prop€tl€r

haft

lang€.

The

cyllnder

s

mounted

o th€

hub

face

uslng

screws

and

s sealed

o

prevent

eakage.

B.

Propeller

Blades

The

propEller

lades

are made

of solid

orgedalumlnum.

A set of spllt

retalnerslnsldehub)secureseachblade n thehub at thepropeller

blade

sockots.

Each

blade

rotatesabout

ts axls on a

beartng

assembly

dudng

pltch

change

nd

s match'balancad

o

the

other

blades.

The

propetler

ssembly

s

stratlc alanced

s well,

usingbalance

welghts

mounted

wlth screws

o

the cytlnder

alance

ing.

An

actuating

ln

assembly

s secured

o the

bladebutt of

eachblade

inside

hub)

by

sqews.

The actuating

in

s drlven

by

a linkageassembly ttach€d o

the

piston

and

piston

od nside he hub

cavlty.

C. Plston

and

Cyllnder

A$€mbly

The

piston

and cyllnder

ssembly

rovides

he forces

n€c€ssaryo

accompllsh

ropeller

lade

pltch

changes.

page

-1

Juty/00



McCauley

ropellerystems

[,lpGl1

Secton

Splnner

Asrembly

The

splnner ssemb,y

rotecb

re hubcomponents

iomdamage

y

for€lgn

bJ€cts.t ls sueamllned

o reduce rag.

Thesplnner ulkhead

assembly

s mountsd

n

he hub, tarter

lng

gear,

llprlngassembly,

r

adepter

late.

Thebulkhead

rovldes

mountor

he

propeller

plnn€r

shell.

Propeller

DelceBoob

(lf

Inrtalled)

The

delceboots re

constructedf

fabrlorelnforced,

braslon-

resistantubber.Theyare mpregnatedih a wlrem63h hatdisblb-

ut€s

heat s selectsdy

hedaice

mer. The

outsr urface

hat

s

expos€do

he envlronmEntasa

glossy

rnlsh,

hlle hsslde

hat

s

bondedo he

propeller

asa dull,matte

inlsh.

Delce

Harness

lf

lnsialled)

The

delce lectricalamessesonnecte delce ootso he

sllp lng

assemblyo

completehe

delce

lectricalrcult.

G.

Delce

Sllp

Rlng Ascembly

lt

Indalled)

The

delce

sllp

rtngassemblys

constructedf machlned

lumtnum

wlth

bronze

ommutator

ings

bonded

o one

slde. Delce

eads or

each

blade

are ocated

n

the

propeller

lde

of the

platter.

These

are

attached

o studs tom

the commutralor

lngs hroughholes

provlded

or

that

purpose.

The assemblys secured

o

th6 hub with scrsws.

H. Internal

Lubrlcatlon

On

mostmodels, he

ubrlcaUon

or the blade

bearlngs omes roma

greasehat ls applie<lo thebearingswhsn heprcp€llers assembled.

How€v€r,

n sornemodels hs fubrlcaUon edlum s oll. On

those

propellers

he

propeller

ub

cavlty

s

padally

flled

with red

dyed

oll

whiclr s

s€aled n he

huband

solated

rom

englneoil. Thlsoll

provides

lubrlcailon

nd conoslon

rotection

o blade

bearlngs nd other ntemal

parts.

The oil ls dyed ed

o ald

n

he

troubleshooung

f

suspect€d

prop€ller

€aks.

NOTE;

Perlodlcmalnt€nanos

f

thls ubrlcaUons NOTnormallyegulred,

2, PropellerModelDesignation

McCauley

ses

a mod6l

designadon

€t€m

o

lden00

spedlic

propsllers.

hls

ls

doneby

uUlizlng

comblnaUonf huband

bhde modeldeslgna0ons.

page

3-2

July/00



McCauleY

ropeller

ystems

l'rPC11

Sectlon

A. Hub Model

Deglgnatlon

Thehub

model

eslgnatlon

s

stamped

n

he

slde

of

the

propeller

ub'

Ottrer

atastamped

'tl

hub s he

FAA

propeller

pe

certlficate

umber

(e.g.

T.C.

P47GL)

nd

productlon

ertificate

umber

e.g.

P.G. ).

Example

f hubmodel

esignaUon:

lndicates

minor

deslgn

chang€not

affecUng

lrcraft

€liglbility

r Interchangeabillty.

Indlcates

majordeslgn

change

which

DOES

affect

alrcraft

€tlgiblllty

r

Interchangeablllty.

Indicates

ype

of

propellor.

3.9. G

=

constant

peed

or

controllable.

Indlcates

McCauley

ladeshanksize

deslgnaUon,

Indlcates

ub

mounting

lange

size

(mounting

tud

b.c"

numberof mounting tuds,etc.).

Indlcates

umber f

blades

n

hub.

Indlcates

ub

Indexlng

owel ocatlons

with

€spect o

the face

slde of

No.

1 blade)'

page

3-3

Juty/o0



McCauley

ropeller ystems

MPC11

Seclion3

Blade

Model Oeelgnailon

All bladesare mpresslon tamp€d n the buttendwth blademodel

deslgnaUon,

rcpeller

ypg

certlffcat€

umber, nd blade

serlal

number.

Thls

stamplngs not vlslble

rom

h€ outslde

f

the

propeller

ssembly.

Howev€r,he

bladeserlalnumber s

Ink

stamped

n

Op

blade hank

approxlmately

ne nch

rom

he hub.

Example

f blademodeldeslgna-

tion:

Reductlon umbefi

ndlcateseductlon f

diamet€r,

n

inches,

romBaslcOiametor.

this

number

ubtracted

rom

theBasicDiameter qualshepropelle/s ctualdiameter

when new.)

Indlcates

p€calicsf bladedeslgn

tip

shape,

alrfoil,

etc.).

Indicates aslc

Dlameter,

n inches, f

propeller.

This

numbermlnusabove

lstedReducUon

umber

qualsactual

diameter f

new

propeller,

e.g.:

82 Inches

mlnus

2 lnches

equals

an actualdlametsr

f EO

nches.)

Indicatesminordeslgnchangenot affecting ircraft

ellgibility

r

interchangeability.

3. OperatingPrlnciples

Thls

propeller

s a

slngle

acdng

unlt

n whlch

hydraullc

ressure

pposes

he

natural,

entlfugal

wis$ngmoment f he

rotatng

blades, nd he

force

of a

spring,

o obtraln

he

con€ct

pltch

or

the

englne oad.

Hydraullc

ressure

orcesblades

oward

hlgh

pllch

(decreaslng

PM).

In fllght,

complete eductlon f hydraullc

ressure failure

n

system awlng

loss

of oil)

wlll

permlt

he

pltch

etumsprlng

and

cBntrltugal

rfllstngmomonto

automatcally

move

blades

o low

pltdt (hlgh

RPM)

posltion.

Wlth he blades n

thls

posluon

urher frlght

can be

contlnued

y uslng

he

hrot{e to

prov€nt

over speedlng,

here

sufficlent

ower

s avallable

o cllmb

or cruise

at lower

alr spe€ds.

A.

Source

of Propeller Actsatlon

Preasurs

Thesourceof hydraullc ressuroor operatonb oll fiom{ho englne

lubrlcatlng

yst€m,

boostod n

pressure

by

the

govemor

gear

pump,

and

supplled

o

th€

propell€r

yllnder/plston

nangem€nt'

The

low of oll

throughhe

govemor

and

he

propeller

does

not

Interforowlth

englne

lubrlcatlon.

B.

Page

3'4

Juty/00

Ng/'-Z

Ir_

I

I



McCauleY

roPeller

Ystems

MPG11

SEction

Low

Pitch

Stop

Elade him

Pack

nd

Retaining ing

Blade

O-Ring

Bearing

Assy.

Split

Retainer

PltchRetum

Spring

page

3-5

Jutyl00

Figure3-1

C400

SeriesGutawaY



McCauley ropeller

Ystems

l/P411

sectlon

3

B. OperatfngMode

Govemormode Oil

s

metered

y the

govemor llot

valve

o and

tom

the

propeller

ncreasing nd

decreasing

lado

angls

pltcft).

Blade

anglo s

Increased r decreased hen

he

propeller

peod

conuol

settlng s

altered. The

govemor

ontrols

nd

stablllzes

ropeller

peedwitt

varying

powsr

condltlons r

Rlght

attltud€s

wlth a

frxed

sp€ed

setting.

An

Increase

n

govemor

output

progsur€

wlll

ddve

he

blades

oward

hlgh

pltch

low

RPM). A decrease

n

gov€mor

uFut

prossura

llowsblada

cEnflfugalMsilng

moment nd

he

propeller

prlng

o

move

he

blades

towardowpitch hlghRPM).

The

operatlon

f malntalning

he RPM

set

by

he

pilot

s entrelyautomatic.

The

govemor

wlll constantly

dlust

he

bladeangles

of the

propeller

n

order o malntain

he RPM hat

has been

set

by

the

pllot.

4,

OverhaulRequlrements

McCauley

ropellers

re

to

be ovefiauled

at spedfrc ntervels.

The lme

between

verhaul

OBO)

s

speclfled

n

hours

of operaton

as well

as

calendar

llmlt. TBO or hese propellersanbe found n tho at$t revlslon t McCaul€y

SeMceBulletln

137[Xl.

NOTE: TBO

speclffcatlon

s subJect

o change.

Any dtanges

o TBOwlll be

announced

n

revislons f

McCauley

ervlce

BulleUn

37[X.

page

3-6

July/00

o



McCauley

ropeller

Ystems

MPq11

Section

SECTION. PROPELLERTELD

MAINTENAT,ICE

RACTICES

1. Propeller

Removal

and Installation

PropellEr

emoval

nd nstallation

hould

be

performed

nly

by

quallfled

mechanlcs.

The following

nstrucilons

re

general

n

nature. The aircraft

maintenance anual hould

alwaysbe

consulted

or any speclalized

proceduresppllcableo speciflcalrcraft.

Varlous

pinner

and

deice

anangements ot manufactured

y

McCauley

may

be usedwhich equire

addlUonal

rocedures.

In the followingnstructions,

nstallatlon

f

propeller

s

based

on

the

assump-

tion

hat a

McCauley pinner

will

be

used.

lf

a splnner

s

not used

or

if

the

spinner s not manufactured

y

McCauley,

delete

those

steps

whlch

apply o

the

splnner.

WARNINGT

Verlfy

hat

magnetos

avebeen

grounded

rior

o approachlng

prop€llar.

Only

um

propeller

acl$ards.

A.

Propeller

and

SPlnner

Removal

NOTE:

(1)

Spinner

ssemblY

emoval

(a)

Make

n

allgnment

ark

on he

spinner

hell

and

adJacent

blade

wlh

a

soft colored

encil.

This ndexmarkensures

accurate

estoraUonf

spinner

hell

position

o lessen he

distortlon

f any

dynamlo alancs

previously erformed

n

the

proPeller

ss€mbly.

'

(b)

RemovE

crews

and

washers

rom

splnnerand fillet

assemblles.

(c)

Remove

plnner

hell

rombulkhead

nd

llletassemblies'

(d)

Remove

pinner

upport

and shims

rom he

frontof lhe.

propeller

oYllnder'

On

some

propeller

ssemblles

he illetsare rlveted n

place

and

cannotbs removodrom he bulkhead ss€mbly,

(e)

lf

requlred, omovescrewsand

washers

attaching

illets

o

bulkhead

nd remove

illets.

ldentlfy

ocation

f

each

illet

to bulkhead.

pags

4-1

July/00



NOTE:

NOTE:

B.

Mc€auley

Prcpeller

ystems

lilPg11

Sectlon

(2)

PropellerAssemblyRemoval

(a) R€move ourling s requlredor access o mountlng uts.

(b)

lf requlred,

emovo

eice

€ads.

(c)

Plac€

drip

pan

undor

propellor

mounting urface

o catch

any

spllled

englne

oll when

propeller

s

removed.

(d)

Break

orqueon

propellermountng

uts

on Gontnental

englne

netalla0one.

orLycomlng

nctallatlons,€move

safety wlre ftom bol6

and

break torque.

(e)

lnstall

propeller

llng

and

attach o holst. lf

holst s

unawilable,

ropeller

may

be

supported nd

lfted

by

hand'

(f)

Take

up slackon

propeller

llng

and

holst'or

support

propeller,

nd remove

nuts

or bolts.

(S)

Caretully

llde

propeller

orwardand remove

rom

englne.

Propellermustbe removed

rom

engine n

a sfaighl

motion.

Any

rocklng n theenglne ouldcausedamageo he propeller

mountlng

lange.

(h)

Place

propeller

n

a sultable

upport

r

propeller

tend.

(l)

lmtall

protectlve

@ver

over

propeller

ub mountng

lang€.

0)

Instatt

protecflve

correr

or/€ropen 6nd of

snglne

propellar

flange.

Propeller

and Splnner

In3tallatlon

(1)

PropellerAssemblylnstallatlon

McOauleyccommends

hat

propeller

mountlng uts

if

appllcable)

be

replaced t

each

propellernstallatlon, henever

osslbl€.

Horrlsver, utre

may

be

reused

proudlng

hreads

are

In

good

condl{on

nd ocklng

mat€rlal

revents

umlngof

the nut on

the

stud

by

hand.

(a)

lf requlred, ttractr

ulkhead

momtlng

dngor bulkhoado

hub.

(b)

Remove

rolectlve

over

tom

end of

englne

prop€ller

flange.

page

4-2

July/00



McCauley

roPeller

Ystems

MPO11

Sectlon

(c)

Ensure

hat

englne

ropeller

lange'

ubmountlnglange'

dowelsandholes,mounting tudsand holesareclean,dry,

and

reE

of

damage

and

orelgnmaterlal'

(d)

Remove

rotective over

rom

propeller

ub

mounting

flange.

(e)

Ensure

hat

a

new

McCauloy'ring

s

Installed

n

he

groove

of

propeller

ub

mounting lange

4-'1633'3

or

Conttnental

ngines

or

A'1633'11 or Lyooming nglnes)'

Lubrlcate rlng

with

englneoil

prlor

o

Installatlon

f

propell€r.

(f)

lf

requlred,

osltion

pinner

ulkhead

n

backof hub

between ub

flange

and

englne

lange.

(S)

Position

ropeller

lose

b englne

propeller

lange

and

allgn

.

dowel

plns

with

the

dowel

pin

holes f applicable'

(h)

Mount

ropeller

n

englne

ropeller

haft'

CAUTION: Propellermustbs Installed tralght ntoengine lange.Any

cocklng

f

propeller

elatlve

o llange

could

esult

n damage

o

engine/propeller

lange

mating

surfaces.

(l)

Ensure hreads

of

nuts''and tuds

are

freE

of burs,

nlcks,

and

slmllar

damage,

nd

cleanof

forelgnmaterlal.

WARNING:

Propellersnstalled

n

Contnental

nd

Franklin ngines

se

a

mounUng ut on

a

propeller

tud. For

hoseappllcaUons:

pply

M '4€3483

tt

cCarby

plr

A-163745)

EPa*

t

ben I y

to

threads

f

nuts

and

mounUng

tuds

and

nut

faces.

Torque50

to

45lb. t. (67.U61.02m).

Propellersnstalled

n Lycomlng

nglnes

re orqued

nto

bushlngs

n

he engine

langE.

NO

ubricant

s usedon

threads.

TorqueDRY65

o 55lb'

ft.

(88.14174.58

m).

CAUTION: Do nof use

oil

as

a subEtituts

or

approved

ubrlcant. t is

imperaUvehat

he

conect

Mll'Spec

ubrlcant

e used

during

Installaton.SubsUtution

f

the

approved

rease

with

an

unapprovedubrlcant

or

no

lubrlcant)

ould

esult n

under-

torqulng r ssvereover-torqulngf propellsrattaching arts.

CAUTION:

lf

an adaptoror

extension

s

attached

o

trcrque

rench

drlveend

and

hlsadds

o

lts

length,

hen

he

actual

applled orquewill

be

greater

han

he dlal

readlng. No calculatlons

requlred

when

uslng he

torque

wranchat

90'.

The

followlngormula

houldbe

used o find what.the

lal hould

read

n

order

o obtaln

he

conecl

applled

orque:

page

4.3

July/00



McCauleyropellerystems

MPO1'l

Secton

ToqueWrenciLength Dsslredorgu€

DlalReadlng

Torque

WrenchLength

+

ExtenslonLength

lf

requlred,nstafl he

delce eads.

For

ConUnentialnd Franklln

nglne nstalla{ons:

ubrlcete

threads

of stjds and

nub,

also

acas

of

nuts,

spacers

or

washers.

nstall

moun0ng ub on

moun0ng

tuds. Torque

mountlng uts n

an

altematng

oqugn€ to

prevent

he hub

cocking

n

he

englne range.When

he

hub s

seated ully

on the

englne

range,oque to he spedfcaUon alledout

ln the

mountng decal

ocat€don

pop€ller

hub

at

#1

socket.

After lnal torgue.apply

orqueseal o

nut

and

stud

threads.

ForLycomlng nglne nstalla(ons:

Start hreads

n

all

propeller

mountlng olts

andhen

tghten n

an altemaUng

sequence

o

prevent

he hub cocklng

n

the englne

ange.

When

he hub s

seated

ullyon the

€ngine

fange, orquo

o

the

speclficatlon

alled

out

n

the mountlng ecal ocat€d

n

#1 socketof propeller ub. Safetywire henutrsnpalrs o

complet6he nstallatlon.

(21

Splnnerlnstallatlon

CAUTION:

Under-shlmmingr over-shlmmlng

f

the splnner ront

support

could esult n splnnerwobble,

lbratlon, ntl/or

bulkhead nd

splnner

racking. Please ollow

shlmmlng

rocedures

aretully.

(a)

lf required,

nstall

prop€ller

plnner

ill€ts

on

the

bulkhead

wlth screws and w$hers.

(b)

Insert

shlms

ntosplnner upport

nd lghtly

press

splnner

supportonto

propeller

yllnder.

(c)

Mount

plnner

hell

onto

bulkhead

nd

tllet

assembly

nd

check

allgnment

f mountng

holes

n

splnner

helland

bulkhead.Ensure

hatallgnmentmarkson splnner

hell

and

propeller

ladeare matched.

Add or

subhact hlms

o

splnner

upportunlil

splnnermounung oles

are

approxi-

matelyhalfa hole rombelngn trueallgnment.

(d)

By

pushlng

n the spinner

helland ushg

an

awl

n

adlacont

ole,move

spinner hell

screwhole

ntoalignment

wlth

bulkhead

ole and

lnstsllwashep and

screws.

Repeat

rocodure

n

opposlng

olesunulelghtevenly

spaced

screwsand

washers

are

lnstalled.

0)

(k)

page

44

July/00



McCaulaY

oPeller

Ystems

MPC11

Secton

4

(e)

Secure

ropeller

pinner

hell

o

bulkhead

nd illet

assemblies

with

remaining

crews and washers.

(3)

Ground un:Up

In order

to

purge

alr

from the

propeller

controlsystem after

Installatlonhe

followlng

rocedure

houldbe used:

(a)

Put

he

propellerspeed

ontrol n

he

maxlmum

RPM

position

(full

orward).

Start

he

engine

and

allow t

to warm up to

englne

operaUng

emperatur€.Cycle

engine rom

ow o

hlghPltcltat least iveUmes.

NOTE: Neverexceed

ublished

nglne

operaUonal

lmlts.

The

flrst

operaton

from

ow to

hlgh

pltch)

may

be

slow.

Ths

thlrd

and

subsequent

sspons€s

o a changs

n

spesd

control

ettlng

should

occur

promptly.

Slowresponse

n

coldweather

may

be expected

ar{cularly

f

the englneoll

ls

not

horoughly

warmed.

In

thls case,speed

ecovery

(frorn

ow

o hlgh

RPM)

may

be

accelerated

y momenhrily

openlnghe hrottle llttlemore'

(b)

After

englne

shut

down,

chEcJ<

or slgnsof oil

leakag€

rom

mountngo-ring

and blade

seals.

Mlnor

eaking

rom

blade

seal ar€a

s common

on

new

propellers

nd

propellers

recen0y verhauled

r

modified

o oll

fflled

conffguraUon.

Any

nlUal

eakage

s usually esn

as

a minor'streaklng"

n

he blades,

Refer o SecUon if

leaking

oocurs,

(4)

Dynamlc

alance

McGauley

ndorses

ynamlc

balance

on

propellers

llh

McCauley

manufactured

plnner

assembll€s

nly.

The

perfor-

mance

of dynamlc

balance

must be In

accordancewlh

the

dynamlc

alance

equlpment

manufacturefs

nstrucllons.

(5)

Make

ogbook ntry

of

propeller

nstrallaton.

2, Blade

Maintenance

A.

Blade Repalr

The

propeller

lade s a

hlghly

stressed

art.

ThE act

that

propeller

blades

are

ikely

o be subject

o

damage

uch

as

nlcks,

gouges,

scratchos, onosion,

pits,

etc.,

dsmands requent

nspection

nd

maintenance.

page

4-5

July/00



McCauley ropeller ystems

MPO11

Sectlon

IMRECTLEAOEI]GE

REVMK

TIEII{D

\

'J

LEAO

O6E AOIUS

IM

LARGE

PRIFILE

CIilTIUR

T0O

El-lJtlT

GENERAL

ULESI

OONOTREIIUCE

AXI}TI{

THIEK}.IESS

tr SECTIIIN.

HATNTAIN

FIGINAL

EAO

EOGE

AOTIS.

i4AINTAIN

I)IILAR

PItrILE ol

AtRF0lL

SECTIIIN.

Flgure4-l

Fleld

Blade

Rework

Criteria

fig.

1 of

2)

page

&6

July/00

\.

Ii,EtnFECT

r LEAO OGE

\

REUORK

; r'ETHoo

I



McCauley

ropeller

ystems

MPO11

Section

RECIMMENDED

LADE

REPA]R

RAOIUS

IOd

TYPICAL

EENTEP

T

OEEPEST

O]NT(S

(

STJRFACE

EPAIR

d

g

(EPIH

of REPAIR

5d

:5

x

O€PTH

f

REPAIR

lOd

=

l0

x

UEPfll of

REPAIR

/ioa

t0d

SURFACE

REPAIR

TYPICAL

\ . - _ - - - ,

Figure4-l

Fief BladeReworkCriterla

fi1.2

ot 2)

pag€

4-7

July/00



( 1 )

McCauley

rop€ll€r

ystoms

MPG11

Sectlon

Repalr

f smallnlcksand scntches

may

be

performed

y

quallfled

mechanlcsn he fleldIn accordance lh procedurespeclffedn FAA

AdvlsoryClrcular

3.1&1Aand

the follorylng

ectlons.

After illng

and

polishlng,

he damaged rea

shouldbe

lmpected,wh€n

po$lbl€'

by

dye

pen€trant

method

o verlfy

hat

all

damag€

has b€cn

removed

and

the

bladeb not

cracked.

The

area

shotlld

bo

prepared

or touch'up

palnt

by

wlplng

wlth a

solvent

ampened

oth.

The

areashould

hen

be

protected

y

ocallz€d

ppllcadon

t ch€mical

llm

per

MIL'G5541

(e.9.

Alodlne)

nd

repalnted

s n€cessary.

Large

nicksor

scratches r

olh€r

damage

nvolvlng

udt

thlngsas

bent

blades,balancs, lameter eduction, tc.,shouldbe conected nly

by

an

approv€d

ropeller

epalr

stratlon.

Repalrable

amage

The

prhary

hme

of blade

damage

hat

a

pllot

or

mochanlc

oed

be

concBrned

ith s

sharp'stress

lsef typo

damage'

Thls

type

of damage

s

causod

by

stones

or

other

small

obj€ctsstriklng

he

propeller

lade

as

lt

ls rotatlng.

Emslon

aused

by sand,water'

btd

not

crealing

sharp'stress

rlsef

type

damagE

DOES

NOT

NEEO EPAIRED

n

hefield.

The use

of a rasp ile

s NOT

ecommended

or

ffeld epalrs.

Rasp-type

iles

will

rcmovo

more

metal

han

ndcessary,

nd

may

caus€

premature

ejection

f blades

at

overhaul.

It ls very

mportanthat'stress

lsefl

ype

damage

be

completely

repalred.

When

lllng

damage

s

complete,

dye

penetrant

examinatlon

f

affected

rea

should

be

performed'

hen

possible,

o v€rify he

"stress

ise/

has

been

complet€ly

removed.

Lead

Edge

RepalrProcedure

Remova

metal

at

damaged

rea

n

sucfi

a way

hat

he alrfoll

contour

emalns

ubstrantially

he

samo. Filestokes

must

un

fromblade

shank o

blade

ip. Avold

abrupt

hanges

n

contour

and

blunt

adges.

The

engthof

the

blended

rea

shall

bo

equal

o

ten

(10)

lm€s h€

depthof

the nlck

(ref.Flgure

4't).

Use

a

sultable

ne'ctJt lle

and

coursegralnemeryaoUr o r€mov€ amag€, en smoothly.ffnlsh

surface

wlfr

line

g:ratn

mery

cloth,

crocus

dotl,

or

600

grit

sandpaPer.

eAUMIli

(21

page

4-8

July/00



(3)

McCauley

roPeller

Ystems

MPC11

Sectlon

FaceandCamber

RePalr

Procedures

Removemetal

at

damaged

rea

uslng

hand'h€ld

otary

grinder

with 120or

less

grlt

bob,

or

by hand

uslng

course

graln

emery

cloth.

Use of

file

In

thls area

s not recommended.

Care

mustbe

tiaken

o control

hand'held

rinder.

Gfind

wlh llght

pressuren a

clrcularmotion

until

damage

s

totatly

removed.

The dlameter

f

the repalrshall

be equal

o twenty

20)

tlmes

he depthof

the

damag€

ref'

Flgure

4''l)' Smoothlyllnlsh

surfacewlth flnegralnemerycloth,crocuscloth,or 600grlt

sandpapsr.

RepalrCompletlon

Following

emoval

f

damage,

he

affected

area

shouldbe

prepared

or

touch-up

alnt

by wiping

with

a solvent

dampened

cloth,

ThEarea

should

be

reirotected

by

localized pplicatlon f

chemlcal

ilm

per

MIL-C-5541

e.g'

alodlne).

Apply

palnt

o

reworked

area.

CAUTION:

(4)

Blade Shake

Blade

shake

ls the tendency

of the

blades

to

wobble sllghtly

when the

blado

tps

are

physloalty

moved by

hand.

When checflng

blade shake'

moesur€ ovement

rom

ead

o

ralledge.

Thls

movemsnt

s

consld'

ered

normal

nd s not

a cause

or

concem.

t

ls caused

y

a

necss'

sary

ooseness

n

hehub

socket

at

allowsheblade

o rotate

eety

about

ts

axls.

f

he blades

ere

lght n thesocket nd

nomov€ment

could

e

elt,abnormal

ndexcesslve

ear n hehubsockets ould

result,

However,ere

s a limit

on

hs amount

f

oosenessllowed

ora

blade.

Any

bladshatmoves.morc

han

1/8or.125

nch

3.13mm)

t

the

blade

lpshould e

e€htmmed

o

reducehe

amount f

movement.

he

reshlmmlng

hould e

done

ya

qualilled

ropeller

epalr tatlon

n

accordance

lh he Mc0auley

verfiaul

anual.

C.

Blade

Palntlng

Palnt

proMdes

ptmum

durablllty

nd abraslon

eslstance. f

palnt

becomes roded nd s not repalnted, amageoalumlnum lade

suGce wlll

be

accelorated.

Thls s

particularly

rue at blade

lps

where

oporatlonn raln or

a

harsh

envlronment arn ause

accelerated

ear.

It

ls,

therefors,mportanto

palnt

blades

requently s

part

of a regular

malntenance

chedule.

McCauley

oes

not re@mmend npalnted

ollshed

lades

due

o

corroslon.

page

4-9

Juty/00



McCauley ropeller ptems

MPO11

Secton4

D. Corroslon

All alumlnum lloysused n

blades

are 3wceptb,b

b coroslon, The

degroe

of conoelon

lkely b

occur

s laryely dependentupon envlron-

mental

exposure. f

a

palnted

r anodlcbladesurllace

s

penehated

y

stonedamage, to., he

matorlal xposedmay conod€ f not

re-

protected.

Conoslon

may be

acceleratedf

$e

propellerls

peratedn

an

Industrial

r coastal

area.

Prgventlons he

best cure

for

coroslon.

Damagp

of

bllstered

palnt

shouldbe r€palnted,

Bladercan be

wlp€dwlth a

doth

dampened lth

oll or uaxed wllh

an automotve

type

paste

wax on a regular

basls

to

mlnlmlzsonelon.

lf conoslondoes develop t should

be remorcd as

soon

as

posslble.

Thls

can

be

accompllshedy ensurlng

hat bladesare frequenUy

lnspected or

evldence

of

coroslon.

In

he

eady stages,a light

polishlng

s

all

that

s requlr€d.

Horevcr,

f the conoslons

deep

seated, urth€rmaterlal emowl w{ll

be

requlred.

The

areashouldhen

be

re-protected

y

locallzed ppllcatlon f chemlcal

ilm

per

specillca-

tion

MIL-C-5541

e.9,

Alodlne)

nd repalnted s necessary.

3. PropellerStrlke

Determlnatlons

o

whetherrnotan

objoct

trlke,

lade

trlko,

ltd

trlk6,

r

sudden nglne toppageasoccrned

s ultlmately

he

$ponslbillty

f the

alrcraft perator.

A. OblectStrlke

'object

strlke'lsdefrned

s

any

mpact

f

a non-mtatng

ropoll€r

ya

substantal ovlng bjec-t,

uch

as any

p€Bonnel

rehlcle,

lrcraftug,

ground orwrunlt, r slmilar.Pleas€otehat he abowdeflnltons

Intendedor use

as an

example

nly.

(1)

The ollottdngnspectons

ustbe

perbrmed

n any

prcpellsr

experlenclng

nobjec{

tlke:

WARNING: Vertfy at

magnot$

havo

€€n

ground€d

rlor

o approachlng

propeller.

Only

um

propeller

ackwads

hen

pgrformlng

rack

check.

(a)

Inspec'tll

blades

or damags

uch

as scrap€3'otlgssl

etc.ca$ed by

he mpsct

Any

damage

olondnormal

lleld tpalr lmlb

(defrned

n

other

McCauley

eMce

Informa0on)

g

cause

or

popeller

emoval

nd epalr

s

deffnedbelow.

pago

t-10

July/00



McCauleY

roPeller

Ystems

MPC11

Sectlon

(b)

Check

blade

acl<

and

verlfy

hat

all bladesmeasure

within

1/16

nch

'1.61 m)of eachother.This sa one ime

check.

Tum

propeller

o

that Number

1 blade s

straight own.

Position

a smooth

board

beneath

blade

ip.

Block

up board

irmly

n

place

ust

clear

of

blade ip.

Place

a

pencil

mark

approximately

ne nch

25mm)

longon the boardat midpoint f leadedgeof Number

blade

lp.

Tum

propeller

o

next

blade

s stralght

down.

Place

a

thinone-inch

25mm)

ine

on board

at midpoint

of outer

edge

of

second

blade ip.

Measure

orlzontal

ifference

etween he

two lines.

Q Carefullyum propeller, ndrepeathackingmeasure-

ment

or each

blade.

Checkblade

rMst.All

blades

n

a

propeller

hould

have

he

same

amount

f

"rotrational

lay''

lf the

difference

n

rotational

lay

between

wo

blades

s beyond1.0 degree,

uneven

ntemal

wear

or damage

s the

possible

cause.

(For

example,

otafonal

movement

f No.

l

bladem€asures

1.2

degrees

nd

No.2 blade

measures.3degrees. his

wouldbe

considered

xcessive

ince he

difference

s

more han1.0degree.)This

check

must

be

performed

every

10

hours or

the next

20

hours. lf no

change

s seen

after

20

hours,

nspections

may

be

discontinued.

lf the

blades

o

not meet

he above

criteria, he

propeller

mustbe

disassembled,

nd

he

retention

nd

actuating

systems

nspected

nd

repaired

y an FM-approved

propeller

epair tation

per

he applicable

Mccauley ervice

manual.

Blade

Strlke of

Rotatlng

Propeller

'Blade

Strike,'sometimes

efenedo as'GroundStrike,'isdefined

s

any mpact

or

suspected

mpact

of the rotatlng

ropeller

pon

such

Items

as, but not imited

o: the

ground,

ow bars,

anding

ights,

arts,

snowbanks,

hedges,

tc. Pleasenote hat

he

above

deflnition

s

intendedor

use

as

example

nly.

L

z

3

4

I

g

(c)

(d)

B.

page

4-11

July/00



GAUTION:

page

4-12

July/00

c.

McCauley

ropeller

ystems

ItiPgll

Section4

Intemal

damage

can

occur

withoutevidence

f

gross

extemal

damage.

Procedures ollowing ladeStdke

of

RobtingPropellen

Any McCauley

ropeller

xperiencing

blade

strike

must

be

removed

from

the aircraftand

comolelelv

overhauled

by an FAA

approved

propeller

epair

stration

n

accordance

ith

he applicable verhaul

manual.

Blrd

Strike

"Blrd

Strike"

an

be defined

s the

mpactof any bird

nto he rotating

propeller,

ausing

amage.

Procedures

n Propellerc ollowing

irdStrike:

Any

McCauley

ropeller

xperlencing

bird

strike

must

be

nsp€cted

per

the following

riteria:

(1)

Inspect ll blades

or

damage

uchas

scfttpes,

ouges,

tc.,

caused y the mpacl

fuiy damag€

eyond

ormal ield

epair

limits

defined

n otherMcCauley eMce

nformation)s cause or

propeller

emoval

nd

repair

as defined

elo'v.

(21

Checkblade

rack

per

Section

paragraph

A.

This

s

a one

time

check.

(3)

Checkblade

wist. All blades

n a

propeller

houldhave

hs

same

amount

of

"rotational

play."

lf

the

dlffErence

n rotrational

lay

betwe€n wo

blades s

bepnd

1'0

dogtee,

uneven

ntemalwear

or

damages

the

possible

ause.

(For

example,

otational

movement f No. 1blademeasures '2degrees nd No.2 blade

m€asures

.3 degress,

Thls

wouldbe considered

xcesslve

since he

differencos more

han1.0

degree.)

Thischeck

must

be

performed

every 10

hours

or the next

20

hours. lf

no change

is seenafter

20

hours, nspectlons

ay

be disconUnued'

lf bladesdo not

meet he above

criteria,

he

prop€ller

must

be

disassembled,nd

he

retgntion nd

actuating

ystems

nspected

and

repalredby an FAA-approved

ropeller

epair

staton

per

the

applicable

McCauley eMce

manual.

Only f a

blade s bentbeyond

epatr

urlng

a birdstike

must

he

prop€ller

be overhauled

er

the applicable

Mccauley

seMce

manualby an

FM-approv€d

prop€ll€r

epair

station'

(4)

(5)



4.

5.

McCauleY

roPeller

Ystems

MPGl1

Section

Propeller nternalLubrlcatlon

The McGauley

ropetler

utilizes

either

an

encapsulated

ll supptyor

grease

or

lubricafion f

all Intemal

ctuation

arls

dopending

n

the

particular

model.

Periodic

ervlcing

f the oil or

grease

n

McCauley

ropellers

s NOT

normally

necessary.

Deice

Maintenance

if

applicable)

A. OperatlngPrlnciples

Propeller elcing

s accompllshed

y heaterelements

n

a

deiceboot

on

surhce of

propeller

lade

where ce

would

normally

orm. The heater

elementsmett

he adhesion

ayerbetween

ccumulated

ce

and

blade

surface, nd

ce is ejected

by centrifugal

orc€

and scavenging irflon.

B. System Descrlptlon

A deiceboot

s attacfied

t

the

nboard

eading

dge

of each

propelter

blade.

The

boot

consists

f the

wire

heater

elements

etween

ayers

of neopreneubber.

The boots

are electrically

@nnected

o

the slip

ring

by a

wlring

hamess'

The

boot

and hamess

re connecled

ith erminals.The

slip ring s

attached

o

the rear

of

the

propeller

ub

and

contalns

onductive

tracks.

The brush

block assembly

s mounted

on a bracket

hat

is

attached o

the

engine

ase. Adjustment

f

the

block

position

s

accomplished

ith

both

elongated

oles n

the

bracket

nd spacers.

The

brush

block

assembly onsists f brushesn a block,withspringsperbrush.

Brushesransmit

ower

o the elements

nd

provide

@mmon

ground.

TlmersdisUlbute lectical

pow€r

o the deice

bootrs

t set

intervals.

Thlsallows

he

boots

o

be off

for

an amount

of

time

o

allow

ce build-

up and

o

prevent

vefieating

and

eventual umout.

C.

Delce Perlodlc Inspectlon

and

Testlng

CAUTTON: To prevent verheatingamageo thepropeller elceboots,do

not operate

ropeller

elce

system or

more

han en

(10)

seconds

without ngines

unning.

page

4-13

July/00




MPG11

Section

(1)

Operationalest

Thepropeller eicesyslemshouldbe inspected,ested,and

maintainedn accordance ith

he

aircraft

maintenance anual.

6. Gleaning

Your

propeller

hould

be

cleanedwith

a

non-causticolution.

McCauley

recommends mix

of

Stoddard

olvent nd

water

soluton.

Additionally

he

folloltdng

hould

be avoided:

WAENIIIQ:

Never

use

high

pressure

eaning

equipment s

he

pressure

could orce hecleaning olution ast he bladso-Iingsand nto

the

propeller

ub.

Thiswould

breakdown

he

ntemal

ubricants

resultingn excessive

ear

as

well as

promote

ntemal

cono'

sion.

Clean

blades

while

he blade s

In

the down

position.

This

will

minlmlze

the amount

f

cleaning

olution

n the

o'dngand

shim

pack

area

of

the

blade.

Use care

when

choosing

cleaning

olvent

o ensure

hat t does

not

contain ny ngredientshat couldbe causUco aluminum'A caustic

solutionwould

promote

onosion

nd couldscrilP

components

uickly.

A.

B.



McCauley

roPeller

Ystems

MPGl1

Secton

5

SECTION.PROPELLER

ERIODIC

NSPECTION

PRACTICES

1.

Propeller

Periodic

nspection

The

ollowingnspectionshould

be

performed

t

the

recommended

ntervals:

A.

Dally

lnspec-tlon

148N N9: Veriff that magnetos avebeengrounded rior o approaching

propeller.

Only

tum

propeller

ackwards

when necessary.

(1)

Blade

Examinatlon

Visually xamine

ll bladesorsigns

f

cracks,

nicks,conosion,

r

otherdamage.

Any nicks

shouldbe

removed

prior

to fllght.

Unusual

damage,such

as

extensive

conosion

r cracks,

equires

emovalof

propeller

nd

evaluation

by an

approved

ropeller

epair

station.

iKITE: Normal

erosion s

not cause

or

concem

or

propeller

emoval.

(2't

Check

Hardware ecurity

Examine ll

visiblehardware

or

security.

Tighten

f

necessary.

(3)

Examine

ropeller

or Leakage

Examine lades or

evldence

f

oil or

grease

eakage.

This

will

be apparent y streaking

n

blades.

f leakage

s confirmed

hen ollow he nstructions

n

Section6.

(4)

Deice

Boot nspection

if

applicable)

Examine eice

boots

or

signs

of

cutrs,

ouges,

r

lmpactdamage.

Any

deice

boot

damagedo theextenthatheating lements re visible houldbe

replaced. f

damage

entrates

he

boot,

bool must

be

removed

for

blade

nspection ven

f

boot

still

operates

ormally.

(5)

Spinner isualExamlnation

Visually xamine pinners

or

Indications

f large

dentsor cracks,

particularly

t

mounting

screwholes.

Splnner

assembly

parts

with

cracks

must be

replaced

prior

o

flight, as

well

as

those

with

arge

dentswhich

could ausean

mbalance.

page

5-1

July/00



WARNING:

McCauley

ropeller Ystems

MPC11

Section

100 Hour Inspectlon

At

each 100 hour

or

other

approved

nspection

nterval,

xamine

propeller

n

accordance

ith aircraft

nsp€ctionmanual'

lnspection

should nclude:

Vedfy hat magnetos

avebeen

grounded

rior

o

approaching

propeller.

Only

turn

propellor

backwards

when

performing

rack

check.

Remove pinner.

tnspect

ll

attaching ardware,

ndudlng

hat under

he spinner,

for security.

Tighten

f necessary.

Check

entire

propeller

or conosion,

racks,or

otherdamage.

Contact

Mc€auley ervice@nter

or disposition

f

any

unusual

damage

s found.

Inspect

ntire

propeller

ystem

or

leakage. f leakag€

s

confirmed,hen ollow he

nstructions

uuinedn Section ,

Inspect ndrepairany bladenicksor scratches'

Inspect

pinner ssembly

arts

or cracking.

Replace ny

componenthat s

conffrmed

s

cracked.

lf applicable,heck

entre

propeller

eicesystem

or damage

nd

operation

er

he aircraft

maint€nanca

anual.

Repaint

ropeller

lades,

s

necessary.

Check or anyapplieDleservicenformation r FAAAiruorthi-

ness Directives.

(10)

Install

pinner

er

Section

,

paragraph

.

(1

l)

Perform n

operationalheck

of

the

propeller

ith

engine unning'

('12)

Make og bookentry

or the nsp€ction.

( 1 )

(21

(3)

(4)

(s)

(6)

(7)

(8)

(e)

page

5-2

July/00



McCauley

ropeller

Ystems

MPG11

Section

SECTION. PROPELLERTROUBLESHOOTING

1,

Types

of ProblemsNormally

Encountered

Thls secdon utin€s

and explalns

number

of operatlng haracteristlcs

wttlchhavebeenobserved

n

service.

There

s somediscussion

f

propeller

designas

it relates

o thesecharacterlstics.

roceduresor

locating nd

conectlng

auses

of undesirable

peration

re

given.

Conesponding

troubleshootng

cfiarts follow

text.

A. Hunting ndSurgingpage6-2)

B. Changing

PM

page

S3)

C.

EngineSpeed

Variation

lth

Flight

Attitude

"Greeping")

page

6'3)

D.

lmproper ropeller peed

page

S4)

E

Propeller

ails o

Contrcl

page

G7)

F. UnusualAircraftVibrationpage6-8)

G. BladeShake

page

-10)

H.

Propeller eaking

page

6-1

1)

page

6-l

July/00



A.

McCauley

ropeller

ystems

MPO11

Section

Huntlng

and

Surging

(1)

Syrnptonr:

Huntino

s a

cyclicor constiant

nariationf

engine peed,

above

and

bslow hat

deslred.

lt will

be

shown

by

constant

wavering f

the

tachometer

eading.

Suroinq

s a

wlde or

exogssive

ncrease r

decreasen'engine

speed

ollo,ved

by

retum

to

he established peedafter

one

or

more

oscillations.

Possible

ause:

Hunting

s

seldom,

f ever,causedby

the

propeller

tself.

Those

conditions

eported

rimarily

ave

been

caused

by

other

parts

of

the

syst€m uchas

the

engine,

ovemor,

r tachometer. he

propeller

an be

tested n

llightby reducing

he manifold

res-

sure.

The

propeller

ontrol

hould

be

n the

utl

RPM

position

nd

the

manifold

ressuro

hould

be reduced ntil

he RPM

drops

slighuy.

This ensures

hat

he

propeller

s

against

ts

low

pitctt

stop

and

s

eliminated

torn

heequation.

Surgingwill

occur

and

should

be considered ormal f lever/

throttle

s moved apidly.

Surgingmay

be caused

y air

n the

system

or a

defective

govemor.

Surging

as been

encountered

n

ground

operation

after nitial nstalla0on lrile

purging

lr

from

system. f encoun-

tered

at other

imes,

he

propeller

hould

be

cycled epeatedly

o

remove

ll air

from

hg

systgm.

f

the condluon

ersists,

t maybe

attributableo mechanical

roblem

with he

govemor'

Corrective

ction:

(a)

Governor

hould

be

removed

nd

ested. Propeller hould

be

purged

gain

after

govemor

s reinstalled. f the

governor

est

s

satisf.actory,

nd

no

other

system aults

can

be

found,

he

propeller

may

be

at

fault'

(b)

tf the

propeller

s

suspected

s

Sre

cause,

t

shouldbe

removed

or examination

y

an approved

ropeller

epair

station.



c.

McCauleY

roPeller

Ystems

MPG11

Section

Ghanglng

RPM

(1)

Symptomr

Propeller

PM

changing

nd

holding

ew

setting'

Possible

Gause:

Excesslveptat'

ln

the

inkage

between

he

governor

nd the

cockpit

ontrol

often

eads

o

enaticoperation'

ConectiveAction:

Trace

inkage,ocate

unsecured

ections'

nd ighten

as needed.

Please

note hat

although

inkage

mayappear

o allow

ull

govemor

ontrol

while

he

engine

s

off,

t may

not n the air.

Englne

vlbra0on

and

stretctt"

of the mount

during

operation

can

often

aggravate

he

condition.

Therefore'

t

is

important

he

entire

length

of linkage

e

property

ecured.

Englne

Speed

Variatlon

wlth

Flight Attitude

('Creeplng")

(1) Symptorn:

Once

speedcontrol

and

power

settings

are establishedor

a

flightattitude

cruise) nd

hen

he aftitude

s

altered

to

climb)

withoutchange

of

speed

and

power

settlngs,

he enginespeed

may

change lightlY.

(a)

Posslble

ause:

Thls effect

s commonly

nownas

"creeping" f

the

speed

setting. Whenspeedandpowersettingsareestablished'

the

govemor

onbol

valvewill be

openedan

amount

o

provide

a

pressure

whlch

balances

he

propeller

orces,

sprlng oad,

and

he

eakage

hrough

he transfer

earing.

Thls

will

malntaln

he

bladeangle

such hat

set

power

may

be

absorbed

t the deslred

Peed.

lf

the attltude

f

the

aircraft

s alteredand he

alrspeed

changed,

he blade

angle

will be

requlred

o change

o

absorb he

power

at

this

airspeed.

This

change n

blade

anglg u,ill cause he

forces to

vary and consequentlywill

change he control

pressure

nd

the

propeller

ransfer

bearingeakage

ate.

page

5-3

July/00



I{OTE:

McCauley

ropeller

ystems

trrlPoll

Section

Since he

governor

had

been adjustedby the speedcontrol

for the first set of conditions,he effect will be to change he

effective quilibrium

peedof

the

propeller

ith no

change n

govemor

etting.

The amountof

change aries

with

engine

transfer

bearing

clearance.

This

speed

change

s

generally

negligible mount nd s

not

cause or con@msincs

lt

is

a normal

eaction

of the control

system.

Conective Action:

lf

it

is

desired hat

heoriginal

peed

etting

e

maintainedn

the

new flight

atdhrde,

t

may

be

neoessaryo adjust he

propeller

control

ev€r as

reguiredafter the aircraft

s

trimmed

out.

(b)

Possible

ause:

Control'friction

ock

in

the

aircraft'

Conective

Action:

Refer o Aircraft

Maintenance

anual.

lmproper

Propeller Speed

(1)

Symptom:

Inconect

ropeller

peed

at a

givenpower

and RPMsetting.

Possible ause:

lf maximum

tiatic

RPM s nconect,

he

probtem

an

normally e

attributedo either

nconect

ow

bladeangle

or

insufficient ngine

horsepower.However,

f the

maximum

n flightRPM

s incorrect

then

an

adjustment

f

tho

govemor

may

be necessary'

Cotrective

Action:

On stiatc uns

he

propeller

hould

prevent

he

engine

RPM iom

gotng o red ine. This is done o preventoversp€eding nd s a

design charact€ristic

f

the

propeller.

Horvever,t shottld

be

wihin

100RPM

of

red

ine.

page

H

July/00



(a)

(b )

McCauleY

roPeller

Ystems

MPq11

Section

lnconectStaticRPM

Onearea

hat

s often

at

fault or RPM

problems

s the

tachometer.

Aviaton

achometers

re

notorious

or being

inaccurate

o begln

roubleshooting

y

verifying he

acculacy

of the

tachometer.

InFlightRPM

With his

problem,

ovemor eadjustment

ay be necessary'

The

tjachometer

eading

should be

chec*ed

or accuracy

before

any

adiustmenB re made. Thegovemor anbe

adjusted y

using

he

stop

scnew n

the

govemor.

This

screwcontrols

he stop

on the

propeller

onhol

inkage. By

adjusting

his screw

you

can change

he

RPM

of the

propeller

when

he

aircraft

s in

flight

and he control

ever

s

in

the

full

RPM

position.

f

the

propeller

s

overspeeding

n flight

hen

the

propeller

ontrol

hould

be

pulled

back

until

t reaches

he

redline

RPM.

Once

he

RPMhas

stabilized,

and heaircraft

without

ouching

he

propeller

control

ever.

At this

point,

he

stop

screw

can

be adjusted

o the

conlrol ever

ocation

nd

then heaircraft houldbe re-riggedSeeFigureG1). lf the

ControlArm

Figure6-1

Adjustmentof overnor topScrew

page

6-5

July/00

Adjustment

Screw



NOTE:


MPG11

Section

propellerwill

ot

make

ull

RPM

n flight

hen he

same

principle houldapply. Beginby backing ff thescrew o

give

the cable more ravel

and

fry

the

aircraft.

Be

careful o

prevent

verspe€ding.

sing he

propeller

ontrol

ever,

increase

he

RPM

until

he maximum

PM

s reached

nd

again and he

aircraft

and

readjust

he

screw

and

adjust

the

control

igging. After any adjustments, e sure

to fly

the

aircraft and verify

the

adjustrnent

onecled

he

problem.

(21

Synptorn:

Dudng

normal

operation,

he

propeller

uddenly verspeeds

ast

ratedRPM.

(a)

Possible

Gause:

Incorect

govemor

peration

r adjustments.

Conective

Action:

Have

govemor

nspected

by an approved

propeller

epair

station.

(b)

Possible

ause:

High

riction

n

propeller

ue

o Inconect himmlng.

Conective

Action:

Have

propeller

hecked

y

an

approved

ropeller

m€-

chanic.

(c)

Possible ause:

High tiction

n

propeller

ue o

tackof lubrication

n

propeller

earing.

Conective

Action:

Remove

ropeller

nd send

o an authorized

ropeller

repair

station.

Followingan overspeed,

thorough

check

of ths entire

propeller

control

system

shoutdbe

performed.

The

following

steps should

be takon n the event rat

the

propeller

as beensubjectedo

overspeed

or

any

reason:

page

&6

July/00



NOTE:

McCauleY

ropeller

ystems

MPG11

Section

(d)

Possible ause:

Overspeeding

f

up

to,

but not ncluding,

5%

of the rated

engine

ake-off

RPM

should

not

produce

ny

harmful

effects.

This

condition

witl necessitate

general

isual

inspection

nlY.

Overspeeding

f

15%

or hlgher

of

rated

engine

ake

off

RPM may

necessitate

urther

action:contact

McCauley or

further nstructions.

Propeller Falls to Gontrol

(1)

Symptom:

Propeller

oes

o

low

pitch

high

RPM)of its ownaccord.

(a)

Possible

ause:

Linkage ecoming

isconnected.

Corrective

ction:

Checkand

repair

govemor

inkage.

(b)

Possible

ause:

lntemal

govemor

ailure.

Conecffve

Action:

Have he

govemor

hecked

y an

approved

epair

acility.

Failure

f intemal

ovemor

art

may esult n

metalcontamination

ln

engine.

Engine

houldbe

checked

er

manufacturefs

speciffcatonsf failure

s confrrmed

contact

McCauley

roduct

Support or

details).

(21

Symptom:

Extreme

luggishness,

ailure o respond

o

changes

n

RPM

setting

or to

hold

constantRPMwlth varying

ircraft

attitude.

(a)

Possible

ause:

Excessiveeakageat

engine

ransfer

earing.

page

6-7

July/00



McCauley

ropeller

ystems

MPG11

Section6

Conective

Action:

Check

he engine

or excessive

eakage

n the

engine

transfer

earing

o the

propeller.

Contact

nglnemanufac-

turer.

(b)

Possible

ause:

Sluggishnessormally

ccurc

gradually,

ppearingrrstas

slow

pitch

change

esponse.

Exfeme

cases

will causg he

blades o stick

n

some

ixed

pitctt

settng.

lt

may be

€used

by conosion, alling, r selzure nthe

pitctt

changing

mechanismn the

propell€r

r blade

bearlngg,

r

broken

springs. t can also

be caused

by

blockage

f

hydraulic

passages

between

ha

governor

and

the

prop€ller.

This will

not normallyoccur

f McCauley's

ecommended

verhaul

times

are

followed.

Conective

Action:

A

complete

check of

the

propeller

actuauon

o,il

ransfer

system houldbe

made.

lf no

problems

re ound,

he

propellerhouldbe removodor examlnationyan autho'

rized

propeller

epair

statlon.

Unusual Alrcraft Vibration

(1)

Symptorn:

Excessive ibration

elt during

normal

alrcraftoperation.

(a)

Possible ause:

Although

vibra$on

can

be

causedby

the

prcpeller,

here

are

other

possible

souross

of

vlbraton

which

can

make

troubleshootingifficult.

f

the

propeller

s the cause

of he

Mbration,t ls

typlcally

ue

o improper

alance,

ladeback,

or

linkage

prcblems

wihin he

propeller.

When

a

propeller

s the

causeof vibration,

he aircraft

typlcallyvibrateshroughofi

the entire

RPM

angp,although

the

intensity

of the

vibration

may nry

with

he

RPM. lf

a

vibration ccr.rrstonlyoneRPMorwithlna llmitedRPM

range, he vibration

s

not nonnally

due to

a

propeller

problem.

Conective Action:

lf

the

propefler

s suspected

as

the

cause

of

the

vibration,

the following

rocedures

houldbe

p€rform€d:



IIOTE:

McCauley

roPeller

Ystems

MPGll

SecUon

Temporarily

eplace

he

propeller

with one

which

s

known

o be

Sood

and est

fly

the

aircraft.

f the

vlbration

s elimlnated,

he

propeller

s

highly uspect

and

should

be sent

o an authorized

ropeller

epair

facilitY

or

evaluation.

It

a

replacement

ropeller

s

unavailable,

heck he

following:

Check

arnount

f "irisf

of each

bladewhen

rotated n bladepitch directionwithin ts socket

per

section

4.3.A.c. Look

or variations

n

the

amount

f

movement

f each

blade

n relation

to the other

blades.

The

amount f

total

trMsf

in

eachblade

s, in itself,

usually

f

no

importance.

t is

a

gl ftggnig

n the

amount

of

"twist" n each

blade

hat should

be considered.

lf excesslve

wist ts

found

n

one

or more

bladesn

relation o the

others,

he

propeller

could

have

an ntemalinkage roblem. t

should

be

removed

nd

sent o an

authorized

propeller

epair acility

or

evaluation.

Check

blade

ngle

split."

t

is a

measurement

of

the angle

differences

etween

ll the

blades

in

the

same

propeller.

Thisvalue

s muchmore

critical

than

"rotational

wisf

described

above,

as a

high

blade

angle

splitmay

ndicate

ntemal

problems.While

such

angle

split

s very are,

theoperatormaywant o measuret if a

problem

s

suspected,

most

notably

y

a

marked

ncrease

n

propeller

ibration

evels.

Bladeangle

split may

be checked

s

folloua:

By

hand, wlst

alt

blades

owardhigh

pitctr.

Thiswilt

etiminate ny'twist'in

the

propeller

inkage,

nd reduce

he

possibility

f

a

false

angle

eading.

Uslnga propeller rotractor t the

appropriate

eference tation,measure

the

angle

f each

blade. f fi€aSUr€.

ments

differ

greatly more

han

1.0

degree)

between

lades

on

the

same

propeller,

xcessive

wear or

damage o

internal

arts

may

exist.

page

6-9

July/00

tll

I2l



G.

NOIE:

pag6

S10

July/00

McCauley

ropeller ystems

MPG11

Section6

t3l

lf

excessive

wear

or

damage

s

suspected,he propeller houldbe

disassembled

nd he

cause

d€termlned

and

conected by

an

FM-approved

propeller

epair

statlon

or intemational

equivalent

er

he

applicable

McGauley

seM@ manual.

Propellermbalance an

be the

cause

of

vibration.

Perfom

a

dynamic alance

n the suspecl

propeller

per

equipmentmanuhcture/s nstructions.

f the

propeller annotbe successfully ynamlcally

balanced,

emove

nd

send

t

to an McGauley

authodzed

ropelter

epair

hcility for

avaluation'

The

propeller

spinner

can

b€ a contibuting aclor

to

an out

of

balance

ondition.

This

conditions

normally aused

y Inadequatehimming f

Orc

spinner

ront supportor

a sacked or deformed

spinner.

lf a spinner

s found o

be tobbling,'remove shell

and illets, un engineand see f vibntiondisappears.

tf Mbration isappears,

einstall

hell

wlth

the

proper

amount f shims

as

describedn Section

.1.B. Any

spinner

ound

cracked

must be replaced.

(b)

Possible ause:

Worn

englne

mounts.

Conective Action:

Consult

ngine

mount

manufactureror replacement

criteria.

Blade Shake

"Blade

Shake" s the tendency

or

the blades o wobble,

ead

edge

o trail

edge,

when

movedby

hand. This

s

nomally

not a

@noern

f movements

limited

o 1/8

nch

or less.

See

p.

4-9.

This endencys thenatural esultof the fabricationf the blade

retention

partrs

o

close olerance.

lt

is NOT

he

sourc€of

vibration r any

other

problems.

While

he

gropeller

s rotadng,

cenbifugal

orce on

the blad€s

seat

them rigidlyand

positively

against

he

retentonbearings

n the hub'



MccauleY

roPeller

Ystems

MPG11

Section

(1)

Symptom:

Above1/8"movement

f

bladesat

tip.

Possible ause:

Inconectshlmming.

ConectiveAction:

Remove ropeller ndsend o an authorized ropellerepair

facillg.

H. Propeller

Leaklng

(1)

Synptom:

Engine

il is observed

n

propeller

lade,cowling, tc.

Possible

Cause:

Leakingrom

engine/hub

ounting -ring.

Conec-tive ction:

Remove

ropeller

nd

eplace

mounting

-ring.

(21

Synptom:

Grease

r

red

dyed

oil

is observed

n

propeller

lade,

cowling,

etc.

Possible

ause:

Leakingrom

blade

sealarea

Figure

-1).

CorrecliveAction:

I

Minoreakingrombladesealarea s common n newpropellers

and

propellers

ecently verhauled

r modified

o

oil filled

configuration.

ny nitial eakage

s usually

een

as a

minor

"streaklng"

n the blades. f

leaking

ccurs:

(a)

Clean

bladeof all

traces

of

oll and

dirt

using

a

cloth

dampened

ith Mineral

Spirits.

page

6-11

Juty/00



GAUTION:

page

&12

July/00

McCauley

ropeller

ystems

t\4PG11

Section6

(b)

Run

engineand cycle

propeller

t least

ive

lmes.

Neverexceed

ublished

ngine

operationalimlts.

(c)

Inspect

lade

or

continued

il

eakage

nd clean

f

necessary

er

step

(a).

(d)

Repeat

tep

(b).

(e)

Inspect

lade.

Leaking

houldbe

tapering

ff

or completely

stopped.

lf leaking

as stopped,

o

furlher

action

s

require<|.

lf leaking as

decreased,

ontinue

perationor up to 25 t

5 hours. lf leaking

ontinues

fter

30

hours,

propeller

must

be removed

rom

aircraft

nd sent

o

an approved

ropeller

repair

station

or

repair,

(3)

Symptom:

Red

dyedoil

is

observed

round

ylinder

rea,

propeller

lade,

cowling,etc.

Possible ause:

Leakingrom

cylinder.

Corrective ction:

Leakage

rom

cylinder

mounting rea

equires

hat he

propeller

assembly e

removed

nd sent

o an

approved

ropeller

epair

facility or inspection/repair.

(4)

Symptom:

Reddyedoil is observed

round

ipe

plug

area,

propeller

la<le,

cowling,etc.

Possible

Cause:

Leakingrom

pipe

plug.

,

ConectiveAction:

Leakagerom

pipe

plug

area

equires

hat tre

propeller

ssembly

b€

removed

and

sent

to

an approved

epair acility

or

inspection/

r€pair,

(f1

(121



McCauley

roPeller

Ystems

t\rPG11

Section

Continued perations allorcd only uponverification f a blade

seal

eak. Leakage

iom

any

otherarea

equires

mmediate

removal

nd

repair.

page

&13

July/00



2.

3.

McCauley

ropeller ystems

MPG11

Section

SECTION

.

PROPELLER

RWORTHINESS

LIMITATIONS

1.

Servlce

Life

Propeller

omponent

eplacement

imes

n flighthours

or

calendar

€ars

ars

set

forlh n

McCauley

ervice

ulletin

37ffi.

Inspectlon

SomepropelleromponentsreplacedntoseMe in an "on condition" asls

subject

o

periodic

nspections

n

ieu

of a sp€dned

ife

imit. Mandatory

inspectionntervals re

specifiedn

SecUon

.

Log

Book

Propellers

re certifiedwith

a specific

power

ating,diameter

imit(s), nd

componentmaterial.This

includesatigue trength,

ropeller

eMce

ife,and

operationalesbictions 6

determined y

the oadsand requency f

occurence

of those oads

usage

pectrum)

f

the

airplane

n

wtrich t is

installed.Eachcertificatedropsllermay be eligibleor nstallationna

number

f different ype

Certificated

irplanes,

ach epresenting different

loading

nd

oading

pecrum or

the

propeller.

Accordingly,

o ensureeactt

propeller

s airworthy,t

is

mandatory

hat eachowner/operator aintain

permanent ropeller

og

bookcontaining

he nforma0on

et

orth n Sectlon

.

The ovme^operators

required

o maintain

permanent

og bookcontalning

the folloruingnformationor

eachserial-numbered

rcpeller

ssembly:

A. The

airplane(s)

n

which he

prop€ller

as been

nstalled

recorded

y

airplanemanufacturernd model

yps(s)).

B.

The ime n

seMce

(flight

hours)

and

he

calendar

eriod month,

ay,

yea(s))

each

propeller

ssembly

recorded

y hub and bladeserial

numbers).

C.

Records f the

maintenance,nspections,

lterations, nd overhauls

performed

n each

propeller

ssembly.

The rscords

must

nclude:

(1)

A

description f

the work

performed,

ncludinghe disposition

f

the affectedparts.

(21

The

date

he

work

was completed'

McCauley Propeller Installation Operation and Maintenance MPC-11

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Transcript of McCauley Propeller Installation Operation and Maintenance MPC-11