Robin America EY44-2 Bedienungsanleitung

ROBIN

AMERICA,

INC.

ROBIN

WISCONSIN ROBIN

ENGINE

MODEL

CROSS

REFERENCE

LIST

ROBIN

EY15

EY15V

EY20

EY20V

EY23

EY28

EY35

EY40

EY45V

EY2

EY44

EY18-3

EY25

EY27

EH11

EH12

EH15

EH17

EH21

EH25

EH3

EH30V

EH34

EH34V

EH43V

EC13V

DY27

DY30

DY35

DY4

WISCONSIN

ROBIN

SIDE

VALVE

1-080

WI-145

W1-145V

W1-185

W1-185V

W1-230

W1-280

Wl-340

W1-390

-450V

EY21W

EY44W

18-3W

EY25W

EY27W

WO1-115

wo1-120

WO1-150

WO1-170

wo1-210

WO1-250

-300

WOI-3oov

WO1-340

WO1-340V

WO1-43OV

TWO

CYCLE

WT1-125V

DIESEL

WRD

1-230

WRD

1-270

WRD1-300

WRD1-350

WRD1-410

CONTENTS

Section Title Page

SPECIFICATIONS

............................................

PERFORMANCE

............................................

2.1

Maximumoutput

.......................................

2.2

ContinuousRated Output ................................. 2

2.3

MaximumTorque and Fuel ConsumptionRatio

Max

Output

........

FEATURES

...............................................

GENERALDESCRIPTION

ENGINECONSTRUCTION

...............

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.9

4.10

4.11

4.12

4-1

4- 14

4.15

Sectional View

Engine

..................................

Crankcase

...........................................

MainBearingCover

.....................................

Crankshaft

...........................................

ConnectingRod and Piston

................................

Camshaft

...........................................

Cylinder and Cylinder Head

...............................

ValveArrangement

.....................................

Balancer

.............................................

Governor

.............................................

Cooling

.............................................

Lubrication

...........................................

Ignition

.............................................

Carburetor

...........................................

Air Cleaner

...........................................

Selenium Rectifier

......................................

5.lNSTALLATlON

............................................

5.1

Mounting

............................................

5.2

Ventilation

...........................................

5.3.

Exhaust

Gas

Evacuation

..................................

5.4

FuelSystem

..........................................

5.5

PowerTransmission to DrivenMachines

.......................

5.6

Wiring

..............................................

DISASSEMBLY

and

REASSEMBLY

..............................

PreparationsandSuggestions

...............................

6-2

SpecialTools

.........................................

6-3

DisassemblyandReassemblyProcedures

.......................

MAGNETO

...............................................

7.1

Magneto

.............................................

7.2

Breaker PointAdjustment

.................................

7.3

TimingAdjustment

.....................................

7.4

MagnetoService Instructions

...............................

GOVERNOR

ADJUSTMENT

...................................

9.CARBURETOR

.............................................

9.1

Operationand Construction

................................

9.2

DisassemblyandReassembly

.................................

9.3

Adjustment

..........................................

RUN-INOPERATION

ENGINE

after

REASSEMBLY

...............

TROUBLESHOOTING

.......................................

11.1

StartingDifficultes

......................................

11.2

EngineMisses

.........................................

11.3

EngineStops

..........................................

11.4

EngineOverheats

......................................

11.5

EngineKnocks

........................................

EngineBackfiresThroughCarburetor

.........................

CHECKS

and

CORRECTIONS

..................................

MAINTENANCE

and

STORING

.................................

13.1

Daily ChecksandMaintenance

..............................

13.2

Every20HoursChecksandMaintenance

.......................

13.4

Every 100-200 Hours (Monthly)ChecksandMaintenance

...........

13.5

Every

500-600

Hours(Semianual)ChecksandMaintenance

..........

13.6

Every1000Hours (Yearly)ChecksandMaintenance

...............

13.7

Preparation for LongAbeyance

.............................

13.3

Every

Hours (10days)ChecksandMaintenance

................

SPEC1

FICATIONS

-1-

PERFORMANCE

2-1MAXIMUMOUTPUT

The maximum output

an engineis such standard power as developed by that engine, after its initial run-in period witha1

themovingpartsproperlyworn-in,whenoperatingwiththefullyopenthrottle valve. Therefore,itfollowsthat

nev

enginemaynotdevelopthismaximumoutputinthebeginning,becausemovingpartsarenot in aproperly

w0rn-h

condition.

2-2

CONTINUOUSRATEDOUTPUT

The continuous rated output of an engine is suchpowerasdevelopedbythatenginewhenrunningatanoptimum speec

most favorable from the point

view of engine life and fuel consumption ratio. Therefore, it follows that when designing

driving systemforanymechanism,withamodel

EY33-2

EY44-2

engine,

primemover,thecontinuouspowe

requirement

that mechanism must be kept below the continuous rated output specified.

2-3MAXIMUMTORQUEANDFUEL CONSUMPTION RATIOATMAX.OUTPUT

The maximum torque

an engine is that driving torque

the driving shaft at which the engine is driving

external load

while the engine is developing its max. output. The fuel consumption ratio at max. output

that fuel consumption ratio

engine while that engineis running at the max. output.

PERFORMANCECURVE

Model

EY33-2

(

)for

type

RECOMMENDED OPERATING SPEED RANG

MAX.

TORQUE

125112

-I

1.7(3.4)

124)12

1.6(3.2)

ft"b

(23J11.5--

kg-rn

1.5

(3.0)

320

300

280

2000

2500

30003500

(1OOO)

112501

115001

11750)

rpm

P.h

-2-

FEATURES

compact,lightweight,andhighlydurable4cycleaircooledEYserieswithhighoutput,embodyingingeniousdesign

and advanced machining techniques.

Simpleconstruction,goodappearance,pluseasystart-up.

Smoothspeedcontrolfunctions

governorguaranteesstableoperationundervariousloadconditionsoverawide

range

applications.

Economicaladvantagewithminimizedfuelconsumption.

Since power can be taken in any direction simply by pulling the belt, and the feed and drain oil work can also be done

easily in two directions

engine, the engineis easily coupled with operating machines.

The use

dynamic balancer reduces vibrations to such an extantas in a two-cylinder engine.

PERFORMANCE

CURVE

Model

EY44-2

(

)for

type

RECOMMENDED OPERATINGSPE

(33)

16.5

(32)

(31)

15.5

tt-lb

(1000)

2000

2500

(1250)

3000

(1500)

rpm-

3500

(1750)

2.3(4.6)

2.2(4.4)

kg-m

2.1(4.2)

-J-

FLYWHEEL(COOLI~G

FAN)

LIGHTING

COIL

CRANKCASE

-4

SEl

-5-

4-2

CRANKCASE

The crankcase is made

aluminum die-cast and separable ondriving shaft side with main bearing cover assembled.

Provided on blower side are two ballbearings, each supporting the crankshaft and camshaft.

4-3

MAINBEARING COVER

The aluminum die-castmainbearingcover on the drivingshaftsideallowseasyaccess

the engine interior

for

inspection

simply by removing it. The’fange and boss permit direct coupling of operating machines such as generators, pumps, etc.

The oil inlets which

also serve as oil gauges can be mounted ondriving shaft side of Models

EY33-2B

and

EY44-2B.

The force-fit balancer shaft and balancer holder mounting boss assure easy mounting of the balancer mechanism.

CRANKSHAFT

The crankshaft is machined from carbon steel forging with an induction hardened crank pin. The breaker cam

provided on

blower side, while crankshaft gear and balancer gear are force-fiton driving side.

4-5

CONNECTING

ROD

and PISTON

The connecting rod

machined from aluminum alloy forging, and forged alloyitself serves as bearing metal at both ends.

(Model EY44-2 employs aluminum metal on thelarge end.)

oil

scraper is provided onthe large endforthepurpose ofsplashinglubricatingoil.Thepiston is machinedfron

aluminum alloy casting and provided with grooves for two compression rings, one oil rings, and one skirt ring.

The

EY44-2

piston has

offset structure at the piston pin center

to reduce striking sound of piston.

4-6

CAMSHAFT

Thecarbonsteelforgingcamshaftincorporatesintegralintakeandexhaustcamsplusaforce-fitcamgear.

The

B-typ

camshaft

also

serves

driving shaft and it

driven at half the crankshaft speed.

4-7

CYLINDER and CYLINDERHEAD

Thecylinder is made

specialcastironandprovidedwithmanyfinsforassuringexcellentcoolingeffects.The cylinda

head is made

aluminumalloycasting.TheRicardotypecombusionchamberwithasufficientareaassures hil

combusion efficiency. The spark plug

tilted

facilitate fuel tank mounting.

4-8

VALVEARRANGEMENT

Theexhaust valve

positioned in theupstreamofthecolling

air

thatit is intensivelycooled downforimprov

durability

engine.

4-9

BALANCER

An unbalancedinertiaforceproducedduetocrankshaftandpistonconnectingrodintheverticalandlateraldirection:

balanced bybalancerwhichrotatesat

ratioof

in thedirectionoppositetocrankshaft,

thatvibrationsdue

unbalanced inertia force are reduced.

-6-

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