Textron Jacobsen G-Plex III Guide

AVVERTENZA: Questa macchina può causare gravi infortuni
se viene utilizzata in modo errato. Prima di accingersi ad
approntare,usare,mettereapuntooeseguirelamanutenzione
di questa macchina, coloro che la utilizzano ed i responsabili
della manutenzionedevonoessereaddestratiall’impiegodella
macchina, devono essere informati dei pericoli, e devono
leggere l’intero manuale.
Safety and Operation Manual
Manuale Operativo e di Sicurezza
WARNING:If incorrectly used this machinecan cause severe
injury. Those who use and maintain this machine should be
trained in its proper use, warned of its dangers and should
read the entire manual before attempting to set up, operate,
adjust or service the machine.
RJ1001032004
24562G-IT(rev.0)
G-Plex III
Series: DP - Engine type: Kubota D722
Product code: USAD001
Series: DN - Engine type: Briggs & Stratton 350447
Product code: USAG001

©2004, Ransomes Jacobsen Limited. All Rights Reserved

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JACOBSEN G-PLEX III Series: DN & DP
SAFETY AND OPERATORS MANUAL
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1 CONTENTS
CONTENTS PAGE
2 INTRODUCTION ......................................................................................................... 2
2.2 PRODUCTIDENTIFICATION .......................................................................... 2
2.1 IMPORTANT .................................................................................................. 2
3 SAFETYINSTRUCTIONS ........................................................................................... 3
3.1 OPERATINGINSTRUCTIONS ......................................................................... 3
3.2 SAFETYSIGNS.............................................................................................. 3
3.3 STARTINGTHEENGINE ................................................................................. 3
3.4 DRIVINGTHEMACHINE ................................................................................ 3
3.5 TRANSPORTING ........................................................................................... 3
3.6 LEAVINGTHEDRIVINGPOSITION ................................................................ 4
3.7 SLOPES ........................................................................................................ 4
3.8 BLOCKEDCUTTINGCYLINDERS .................................................................. 4
3.9 ADJUSTMENTS,LUBRICATIONANDMAINTENANCE................................... 4
4 SPECIFICATIONS ...................................................................................................... 6
4.1 ENGINESPECIFICATION................................................................................ 6
4.2 MACHINESPECIFICATION ............................................................................ 6
4.3 CUTTINGUNIT .............................................................................................. 6
4.4 DIMENSIONS ................................................................................................. 6
4.5 VIBRATIONLEVEL ........................................................................................ 7
4.6 SLOPES ........................................................................................................ 7
4.7 RECOMMENDEDLUBRICANTS ..................................................................... 7
4.8 CUTTINGPERFORMANCE ............................................................................ 7
4.9 CONFORMITYCERTIFICATES ...................................................................... 8
5 DECALS ................................................................................................................... 10
5.1 SAFETYDECALS ......................................................................................... 10
6 CONTROLS .............................................................................................................. 11
6.1 HANDCONTROLS-GASOLINE ................................................................... 11
6.1.1 HANDCONTROLS-DIESEL ......................................................................... 12
6.2 CONTROLPEDALS ...................................................................................... 13
6.3 PARKINGBRAKEPEDAL .............................................................................. 13
6.4 PADDLE/FOOTSWITCHMOW/LIFT .............................................................. 13
7 OPERATION .............................................................................................................. 14
7.1 DAILYINSPECTION ...................................................................................... 14
7.2 OPERATORPRESENCEANDSAFETYINTERLOCKSYSTEM ....................... 15
7.3 OPERATINGPROCEDURE ............................................................................. 16
7.4 MOWINGPROCEDURES .............................................................................. 17
8 SETUP 17
8.1 SETUP ......................................................................................................... 18
8.2 MOUNTINGTHECUTTINGHEADS ............................................................... 19
8.3 REELMOTORMOUNTING ............................................................................ 20
9 ADJUSTMENTS ........................................................................................................ 21
9.1 SEATADJUSTMENTLEVER ........................................................................ 21
9.2 CONTROLARMADJUSTMENT ................................................................... 21
9.3 BEDKNIFEADJUSTMENT ............................................................................. 22
9.4 HEIGHTOFCUT ........................................................................................... 23
10 LUBRICATION&MAINTENANCE ............................................................................. 24
10.1 LUBRICATION&MAINTENANCECHART .................................................... 24
10.2 LUBRICATIONDIAGRAM ............................................................................. 25
10.3 HYDRAULICPUMPBYPASSVALVE ............................................................ 26
10.4 FREEWHEELINGORTOWINGUNIT .............................................................. 26
10.5 FUELRECOMMENDATIONS-DIESEL .......................................................... 27
10.5.1 FUELRECOMMENDATIONS -GASOLINE ..................................................... 27
10.6 AIRCLEANER-GASOLINE .......................................................................... 28
10.6.1 AIRCLEANER-DIESEL ................................................................................ 28
10.7 TIRES ........................................................................................................... 29
10.8 ENGINEACCESS .......................................................................................... 29
10.9 ENGINEOILLEVEL-GASOLINE .................................................................. 30
10.9.1 ENGINEOILLEVEL-DIESEL ........................................................................ 30
10.10 BATTERY ..................................................................................................... 31
10.11 JUMPSTARTING ......................................................................................... 32
10.12 CUTTINGHEADMAINTENANCE .................................................................. 32
10.13 HYDRAULICSYSTEM .................................................................................. 33
11 GUARANTEE/SALES& SERVICE ............................................................................ 34

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2 INTRODUCTION
2.1IMPORTANT
IMPORTANT: This is a precision machine and the service obtained from it depends on the way it is
operatedandmaintained.
ThisSAFETY ANDOPERATORS MANUAL should be regardedas partof themachine. Suppliers ofboth
newandsecond-handmachinesareadvisedtoretaindocumentaryevidencethatthismanualwasprovided
with the machine.
This machine is designed solely for use in customary grass cutting operations. Use in any other way is
considered as contrary to the intended use. Compliance with and strict adherence to the conditions of
operation,service andrepair asspecified bythe manufacturer,also constituteessential elementsof the
intendeduse.
Beforeattempting to operatethis machine,ALL operators MUST read throughthis manualandmake
themselvesthoroughlyconversantwithSafetyInstructions,controls,lubricationandmaintenance.
Accidentpreventionregulations,allothergenerallyrecognizedregulationsonsafetyandoccupational
medicine,and all road traffic regulations shall be observedat all times.
Anyarbitrary modificationscarried outon thismachine mayrelieve the manufacturer of liability for any
resultingdamageorinjury.
2.2 PRODUCT IDENTIFICATION
A Machine Name
B Serial Number
C Year of Manufacture
D Machine Weight
E Engine Power

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JACOBSEN G-PLEX III Series: DN & DP
SAFETY AND OPERATORS MANUAL
3 SAFETY INSTRUCTIONS
This safety symbol indicates important safety
messages in this manual. When you see this
symbol, be alert to the possibility of injury, carefully
readthemessagethatfollows,andinform other
operators.
3.1OPERATINGINSTRUCTIONS
• Ensure that the instructions in this book
arereadandfullyunderstood.
• Nopersonshouldbeallowedtooperate
this machine unless they are fully
acquainted with all the controls and the
safetyprocedures.
• Neverallowchildrenorpeopleunfamiliar
with these instructions to use this
machine. Local regulations may restrict
theageofthe operator.
3.2SAFETYSIGNS
• It is essential all safety labels are kept
legible, if they are missing or illegible they
must be replaced. If any part of the
machine is replaced and it originally
carried a safety label, a new label must be
affixedto the replacementpart. New
safetylabelsareobtainablefrom
Ransomesdealers.
3.3STARTINGTHEENGINE
• Before starting the engine check that the
brakesareapplied,drivesareinneutral,
guards are in position and intact, and
bystandersare clearof themachine.
• Do not run the engine in a building without
adequateventilation.
3.4DRIVINGTHEMACHINE
• Beforemovingthemachine,check to
ensure that all parts are in good working
order,payingparticularattentionto
brakes, tyres, steering and the security of
cuttingblades.
• Replace faulty silencers, mow only in
daylightor goodartificial light
• AlwaysobservetheHighwayCodebothon
andoffthe roads.Keepalert andawareat
all times. Watch out for traffic when
crossingornearroadways.
• Stopthebladesrotatingbeforecrossing
surfacesotherthangrass.
• Rememberthatsomepeoplearedeafor
blind and that children and animals can
beunpredictable.
• Keeptravellingspeedslowenoughforan
emergencystoptobeeffectiveandsafe
at all times, in any conditions.
• Removeoravoidobstructionsinthearea
to be cut, thus reducing the possibility of
injurytoyourselfand/or bystanders.
• Whenreversing, takespecial care to
ensure that the area behind is clear of
obstructionsand/or bystanders. DO
NOTcarrypassengers.
• Keep in mind that the operator or user is
responsibleforaccidentsorhazards
occurringtootherpeopleortheir
property.
• When the machine is to be parked,
storedorleftunattended,lowerthe
cutting means unless the transport locks
arebeingused.
• Whilemowing, always wearsubstantial
footwearandlong trousers. Do not
operatetheequipmentwhenbarefootor
wearingopensandals.
• Checkthegrasscatcher frequently for
wearor deterioration. Afterstriking a
foreignobject. Inspect. the lawnmower
fordamageandmakerepairsbefore
restartingandoperatingtheequipment.
• Ifthe machinestarts tovibrate
abnormally,check immediately.
3.5TRANSPORTING
• Ensure that the cutting units are
securelyfastenedin the transport
position. Do not transport with cutting
mechanismrotating.
• Drivethemachinewithdueconsideration
ofroadandsurfaceconditions, inclines
andlocalundulations.
• Suddendeceleratingorbrakingcan
cause the rear wheels to lift.
• Remember that the stability of the rear of
the machine is reduced as the fuel is
used.

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SAFETY AND OPERATORS MANUAL
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3 SAFETY INSTRUCTIONS
3.6LEAVINGTHEDRIVINGPOSITION
• Parkthemachineonlevelground.
• Beforeleavingthedrivingposition,stopthe
engineandmakesureallmovingpartsare
stationary. Apply brakes and disengage all
drives.Removethestarterkey.
3.7 SLOPES
TAKEEXTRACAREWHENWORKINGON
SLOPES
• Localundulationsandsinkagewillchange
thegeneralslope.Avoidgroundconditions
which can cause the machine to slide.
• Keep machine speeds low on slopes and
duringtightturns.
• Suddendeceleratingorbrakingcancause
the rear wheels to lift. Remember there is
no such thing as a “safe” slope.
• Travelongrassslopesrequiresparticular
care.
DONOTUSEONSLOPESGREATERTHAN15°
IMPORTANT: When working on any slope set the
weight transfer, if fitted to its maximum (+) setting.
3.8BLOCKEDCUTTINGCYLINDERS
• Stopthe engine andmake sureall moving
partsare stationary.
• Applybrakesanddisengagealldrives.
• Release blockages with care. Keep all parts
of the body away from the cutting edge.
Bewareofenergy inthedrivewhichcan
causerotation when theblockage is released.
• Keepother people awayfrom the cutting units
as rotation of one cylinder can cause the
others to rotate.
3.9ADJUSTMENTS,LUBRICATIONAND
MAINTENANCE
• Stopthe engine andmake sureall moving
partsare stationary.
• Applybrakesanddisengagealldrives.
• Readalltheappropriateservicinginstructions.
• Use only the replacement parts supplied by
theoriginalmanufacturer.
• When adjusting the cutting cylinders take
carenot toget hands and feet trappedwhen
rotatingcylinders.
• Makesure that other people arenot touching
any cutting units, as rotation of one cylinder
can cause the others to rotate.
• Toreducethefirehazard,keeptheengine,
silencerandbatterycompartmentsfreeof
grass,leavesorexcessivegrease.
• Replacewornordamagedpartsforsafety.
• Whenworkingunderneathliftedpartsor
machines,makesureadequate support Is
provided.
• Do not dismantle the machine without
releasingorrestrainingforceswhichcan
causeparts tomove suddenly.
• Donotalterenginespeedabovemaximum
quoted in Engine Specification. Do not
changetheenginegovernorsettingsor
overspeedtheengine. Operatingtheengine
at excessive speed may increase the hazard
ofpersonalinjury.
• Whenrefuelling,STOPTHEENGINE,DO
NOTSMOKE.Addfuelbeforestarting the
engine,neveraddfuelwhiletheengineis
running.
• Useafunnelwhen pouring fuelfromacaninto
the tank.
• Do not fill the fuel tank beyond the bottom of
the filler neck.
• Replace all fuel tank and container caps
securely.
• Storefuelin containersspecificallydesigned
forthispurpose.
• Refueloutdoors only anddo notsmoke while
refuelling.
• If fuel is spilled, do not attempt to start the
enginebutmovethemachineawayfromthe
areaofspillageandavoidcreatinganysource
ofignitionuntilfuelvapourshavedissipated.
• Allow the engine to cool before storing in any
enclosure.
• Neverstoretheequipmentwithfuelinthe
tankinside a building where fumesmay reach
anopenflame orspark.
• If the fuel tank has to be drained, this should
bedoneoutdoors.
• Do not spill fuel onto hot components.
• Whenservicingbatteries,DONOT SMOKE,
and keep naked lights away.
• Do not place any metal objects across the
terminals.

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JACOBSEN G-PLEX III Series: DN & DP
SAFETY AND OPERATORS MANUAL
Hydraulic Fluid escaping under pressure
can penetrate skin and do serious
damage. Immediate medical assistance
mustbesought.
WARNING
Batteries produce explosive gases and
contain corrosive acid and supply levels
of electrical current high enough to cause
burns.
WARNING
DONOTUSEONSLOPESGREATERTHAN15°
WARNING
3 SAFETY INSTRUCTIONS
DANGER-Indicatesanimminentlyhazardous
situation which, if not avoided, WILL result in death
orserious injury.
WARNING-Indicatesapotentiallyhazardous
situationwhich,if notavoided,COULD result in
deathor seriousinjury.
CAUTION-Indicatesapotentiallyhazardous
situationwhich, ifnot avoided,MAY result inminor
ormoderate injuryand propertydamage. It may
also be used to alert against unsafe practices.
IMPORTANT: Transport speed is for highway
use only. Never select transport speed on grass
areas or uneven or unsurfaced roads or tracks.
TheoperatingInstructionsfortheCuttingUnitsare
contained in a separate Publication .
California Proposition 65
Engine Exhaust, some of its constituents,
and certain vehicle components contain
or emit chemicals known to the state of
California to cause cancer and birth
defects or other
WARNING
Before releasing transport latches it is
important that all cutting units are fully
raised.
1. Park the machine on level ground.
2. With the engine running at operating
speed raise the cutting units to their
maximum position by operating lift
levers whilst seated in the driving
position.
3. Disengage drives, stop the engine and
make sure all moving parts are
stationary. Apply brakes and remove
the starter key.
4. transport latches can now be released.
WARNING Battery posts, terminals and related
accessories contain lead and lead
compounds
WASHHANDSAFTERHANDLING
WARNING

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SAFETY AND OPERATORS MANUAL
GB
4 SPECIFICATIONS
4.1 ENGINESPECIFICATION
TYPE:TYPE: Kubota 15.5KW @ 3600 RPM,
3 cylinder Dioesel engine, 4
stroke, water cooled, 719cc
with 12V electric start.
Model: D722-E
MaximumSpeed: 3400RPM(Noload)
IdleSpeed: 1500RPM
Oil Sump Capacity:3.2 litres
FiringOrder: 1, 3, 4, 2.
Fuel: No.2-DDieselfuel(ASTMD975)
4.1.1 ENGINESPECIFICATION
TYPE:TYPE: Briggs & Stratton 13.5KW @
3600 RPM, V twin gasoline
engine, 4 stroke, air cooled,
719cc with 12V electric start.
Model: Vanguard350447Type1294
MaximumSpeed: 3400RPM(Noload)
IdleSpeed: 1500RPM
Oil Sump Capacity:1.4 litres
Fuel: UnleadedGasolineMinimum85
octane
4.2 MACHINESPECIFICATION
Frameconstruction:Heavyduty fabricatedsteel
chassis.
Transmission: Variabledisplacement
hydrostaticpump withhigh
speedlowtorquewheelmotors.
Cuttingunitdrive: Directdrivehydrostaticandreel
drivepumps,bi-directional
hydraulicgearmotorwithreel
controlvalveandbacklapcontrol
valve.
Speeds:
Cutting: 6 km/h
Transport: 12 kp/h
Reverse: 3 kp/h
Steering: RearWheelSteering. Power
Steering, 2.5 turns lock to lock
330mmdia.SteeringWheel
Groundpressure: 1.0 kg/cm
Brakes,Service: Positivehydostaticbraking.
Parking: 152mm Caliper Disk
Capacities:
CoolingSystem: 3.8 litres
FuelTank: 31 litres
HydraulicTank: 18.2 litres
Total System 25.7 litres
Battery: 12volt,Type093
Alternator Diesel40amp
Gasoline15amp
4.3 CUTTINGUNIT
Type: Three559mmwidesteerable
floatinghead.
Reel: 127mm diameter, 7 / 9 / 11
knife.
Rolls: Smoothrear roll, smooth or
groovedfront/rearrollsoptional.
Bedknifetoreel
adjustment: Opposedset screw.
Heightof cut
adjustment: Micro-adjustersonfrontroll.
height of cut: 2.5mmto16mmStandardblade
2mmto16mmTournament
blade.
4.4 DIMENSIONS
Width of cut: 1.57metres
Overallwidthwithreels: 1.9 metres
Overallheight: 1.3 metres
Overalllengthwithreels: 2.1metres
Overalllengthwithcatchers: 2.5 metres
Overallweightofmachine
With Reels Diesel: 630kg
Gasoline: 574kg
WithoutReels Diesel: 535kg
Gasoline: 478kg
WheelTrack: 1.2metres
Wheel Base: 1.3metres
SERUSSERPERYT
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JACOBSEN G-PLEX III Series: DN & DP
SAFETY AND OPERATORS MANUAL
4.5 VIBRATIONLEVEL
Themachinewastestedforwholebodyand hand/
armvibrationlevels. Theoperatorwasseatedinthe
normaloperatingpostionwith both handsonthe
steeringmechanism. Theenginewasrunningand
the cutting device was rotating with the machine
stationary.
StandardISO 5349:1986Mechanicalvibration.
Guidelinesforthemeasurementandthe
assessmentofhumanexposuretohand-transmitted
vibration.
StandardISO2631-1:1985Evaluationofhuman
exposuretowholebodyvibration--Part1:General
requirements.
4.6 SLOPES
DONOTUSEONSLOPESGREATERTHAN15°
The slope 15° was calculated using static stability
measurementsaccordingtotherequirementsof
EN836.
4.7 RECOMMENDEDLUBRICANTS
Engineoil:
Diesel: ShouldbetoMIL-L-2104C
or to A.P.I. Classification CD
Gasoline: A.P.I. Classification SE/SF
enilosaG-IIIxelP-G NDseireS noitareleccAmrA/dnaH level
HRroHLxaM
s/msnoitareleccA
2
qeAXqeAYqeAZ
09.077.062.1
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-IIIxelP-G enilosaG NDseireS ydoBelohW noitareleccA level
noitacoLroolF
s/msnoitareleccA
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noitacoLtaeS
s/msnoitareleccA
2
xyzxyz
naeM80.070.065.0060.0050.0011.0
leseiD-IIIxelP-G PDseireS noitareleccAmrA/dnaH level
HRroHLxaM
s/msnoitareleccA
2
qeAXqeAYqeAZ
93.125.1236.0
eulaVtnanimoD25.1
-IIIxelP-G leseiD PDseireS ydoBelohW noitareleccA level
noitacoLroolF
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s/msnoitareleccA
2
xyzxyz
naeM2040.05630.0402.05050.01580.07050.0
HydraulicOil: GreensCare68
Grease: Lithiumbased.
4.8CUTTINGPERFORMANCE
CuttingFrequency
7-knife reel - 7.4mm at 6km/h
9-knife reel - 5.7mm at 6km/h
11-knife reel - 4.7mm at 6km/h
ERUTAREPMETYTISOCSIVLIO
)F°93(C°4EVOBA03EAS
)F°93(C°4WOLEB03-W01ro03-W5EAS

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SAFETY AND OPERATORS MANUAL
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4 SPECIFICATIONS
4.9 CONFORMITYCERTIFICATES
EC Declaration of Conformity • Déclaration de Conformité CE •
EG Conformiteits-Declaratie • EG-Konformitatsbescheinigung •
Certificato di Conformità CE • EF Konformitetserklæring •
EU Uppfyllandecertifikat • Ilmoitus yhdenmukaisuudesta ey:n sääntöjen kanss •
Declaración de Conformidad de la CE • Declaração de Conformidade da CE
We the undersigned • Nous, soussignés • Wij, ondergetekenden • Wir, die Unterzeichnenden • Noi sottoscritti Undertegnede •
Undertecknarna • Me allekirjoittaneet • Los abajo firmantes • Nós, abaixo assinados
Ransomes Jacobsen Limited
West Road, Ransomes Europark,
Ipswich, England, IP3 9TT
Declare that the machine Described Below • Certifions que la machine suivante • verklaren dat onderstaand beschreven machine •
erklären, dass die nachfolgend beschriebene Maschine • Dichiariamo che la macchina descritta di seguito • Erklærer, at følgende maskine •
Deklarerar att den maskin som beskrivs nedan • vahvistamme, että alla kuvattu kone • Certificamos que la máquina descrita abajo •
declaramos que a máquina a seguir descrita
Make & Type • Nom & Type • Merk & Type • Marke und Typ • Marca e tipo •
Fabrikat og type • Fabrikat & typ • Malli ja tyyppi • Marca y Tipo • Marca & Tipo .............. Jacobsen G-Plex III
Category • Modèle •Categorie • Kategorie • Categoria • Kategori • Luokka •
Categoría • Categoria ......................................................................................................... Ride on Cylinder Mower
Series • Série • Serie • Sarja .............................................................................................. DP & DN
Engine • Motor • Moteur • Motore • Moottori ....................................................................... Kubota Diesel / Briggs & Stratton Gasoline
Type • Typ • Tipo • Tyyppi .................................................................................................. Kubota D772 / Briggs & Stratton Vanguard
Net Installed Power • Puissance nette • Netto geïnstalleerd vermogen •
installierte Antriebsleistung • Potenza installata netta • Nettoeffekt installere •
Installerad nettoeffekt • Asennettu nettoteho • Potencia instalada neta •
Potência real instalada ....................................................................................................... Kubota 11.5 KW / Briggs & Stratton 11.9 KW
Cutting Width • Largeur de coupe • Maaibreedte • Schnittbreite •
Larghezza di taglio • Klippebredde • Klippbredd • Leikkuuleveys •
Anchura de corte • Potência real instalada ....................................................................... 180cm
Complies with the provisions of the following European directives and amendments and the regulations transposing it into national law •
Est conforme aux prescriptions des normes, modifications et règles européennes suivantes • voldoet aan de bepalingen van de volgende
Europese Richtlijnen en Amendementen, alsmede aan de verordeningen die deze omzetten in nationale wetgeving • den Bestimmungen der
folgenden Europa-Richtlinien einschließlich aller Änderungen und Ergänzungen sowie den Vorschriften, die diese in das nationale Recht
umsetzen, entspricht • soddisfa quanto previsto dalle seguenti direttive ed emendamenti europei e dalle normative che li riportano in legge
nazionale • Overholder bestemmelserne i følgende EF-direktiver med ændringer og i de forordninger, hvorved de omsættes til national lov •
Uppfyller kraven i följande europeiska direktiv med tillägg och regler transponerade till nationell lagstiftning • täyttää seuraavana mainittujen
Euroopan direktiivien ja muutosten ja säännösten asettamat edellyt
Machinery Safety Directive • Directive de sécurité des machines •
Richtlijn Machineveiligheid • Richtlinie zur Maschinensicherheit •
Direttiva sulla sicurezza del macchinario • Maskinsikkerhedsdirektivet •
Maskinsäkerhetsdirektiv • Koneen turvallisuutta koskeva direktiivi •
Directiva de seguridad de maquinaria • Directiva de segurança de máquinas ................ 98/37/EC
EMC Directive • Directive de compatibilité électromagnétique • EMC Richtlijn •
EMK-Richtlinie • Direttiva EMC • EMC-direktivet • Elektromagnetiskt kompatibilitetsdirektiv •
EMC-direktiivi • Directiva EMC ............................................................................................. 89/336/EC
Noise in the Environment Directive • Directiv • Richtlijn Milieulawaa •
Richtlinie zum Umgebungslärm • Direttiva sulla rumorosità nell’ambiente •
Støjemissionsdirektivet • Bullerdirektiv • Melu ympäristöä koskevassa direktiivissä •
Directiva sobre ruido en el ambiente • Directiva Ruído no Ambiente ................................ 2000/14/EC
Measured Sound Power Level • Niveau de puissance sonore assuré •
Gegarandeerd geluidsvermogenniveau • Garantierter Schallleistungspege •
Livello di potenza del suono misurato • Målt lydeffektniveau • Uppmätt ljudfraftsnivå •
Mitattu åånitehon taso • Nivel de Potencia Sonora • Nívelde intensidade de som medido .. 100 dB(A) LWA
Guaranteed Sound Power Level • Niveau de puissance sonore assuré •
Gegarandeerd geluidsvermogenniveau • Garantierter Schallleistungspege •
Livello di potenza del suono misurato • Garanteret lydeffektniveau •
Garanterad ljudtrycksnivå • Taattu äänitehon taso • Nivel Garantizado de Potencia Sonora •
Nível garantido de intensidade sonora .............................................................................. 105 dB(A) LWA

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JACOBSEN G-PLEX III Series: DN & DP
SAFETY AND OPERATORS MANUAL
Conformity Assessment Procedure • Procédure de conformité•évaluation • Conformiteitsbeoordelingsprocedur • Verfahren zur Beurteilung
der Konformität • Procedura di valutazione conformità • Procedure for overensstemmelsesvurdering • Procedur för utvärderande av
uppfyllande • Yhdenmukaisuuden arviointiproseduuri • Procedimiento de evaluación de conformidad • Processo de avaliação de
conformidade
Annex VI, Part 1• Annexe VI, Part 1 • Bijlage VI, Part 1 • Anlage VI, Part 1 • Allegato VI, Part 1 • Anneks VI, Part 1 • Annex VI,
Part 1 • Liite VI, Part 1 • Anexo VI, Part 1 • Anexo VI, Part 1
U.K. Notifiable Body (No.1088) • Institut britannique à notifie(No.1088)r • Britse onderzoeksinstantie (No.1088) • in GB zu informierende
Institution (No.1088) • Ente notificabile Gran Bretagna • (No.1088) • Organ, som skal underrettes (No.1088) • Brittiskt meddelandeorgan
(No.1088) • Ison-Britannian ilmoitusosapuoli (No.1088) • Cuerpo notificable en el Reino Unido (No.1088) • Entidade a notificar no Reino
Unido ( No.1088)
Sound Research Laboratories Limited
Holbrook House, Little Waldingfield
Sudbury, Suffolk CO10 0TH
Operator Ear Noise Level • Bruit au niveau des oreilles de l’opérateur •
Geluidsniveau op oorhoogte bediener • Schallpegel am Ohr des Fahrers •
Livello rumorosità orecchio operatore • Støjniveau ved betjening •
Bullernivå vid operatörens öron • Käyttäjän korvaan kohdistuva äänitaso •
Nivel de ruido en el oido del operari • Nível de ruído nos ouvidos do operador ............... 82.6 dB(A)Leq (98/37/EC)
Complies with the following harmonised standard or technical provisions • est conforme aux normes harmonisées • Voldoet aan de
volgende geharmoniseerde norm of technische bepalingen • Diese Maschine entspricht den folgenden harmonisierten Normen oder
technischen Bestimmungen • Rispetta il seguente standard armonizzato o requisiti tecnici • Overholder følgende harmoniserede
standardbestemmelser eller tekniske bestemmelser • Uppfyller följande harmoniserade standard eller tekniska definitione • täyttää
seuraavat harmonisoidut standardit tai tekniset edellytykset • Cumple con los siguientes estándares de hramonización o provisiones
técnicas • Está em conformidade com a norma harmonizada ou com as provisões técnicas seguintes
Machinery Safety • Sécurité des machines • Machineveiligheid •
Maschinensicherhei • Sicurezza del macchinario • Maskinsikkerhed •
Maskinsäkerhet • Koneen turvallisuus • Seguridad de maquinaria •
Segurança de máquinas .................................................................................................... EN836
Hand Transmitted Vibration • Vibrations transmises aux mains •
Via de hand overgebrachte trilling • Auf das Hand-Arm-System übertragene Schwingungen •
Vibrazione trasmessa dalla mano • Håndoverført vibration •
Handöverförda vibrationer • Käsivälitteinen tärinä • Vibración transmitida a la mano •
Vibrações transmitidas através das mãos........................................................................ ISO5349: 1986
Whole Body Vibration • Vibrations du corps entier • Trilling hele lichaam •
Auf den gesamten Körper übertragene Schwingungen • Vibrazione di tutto il corpo •
Vibration i hele kroppen • Hel kropps vibrationer • Koko kehoon kohdistuva tärinä •
Vibración de todo el cuerpo • Vibração em todo o corpo ................................................. ISO2631-1: 1985
Keeper of Technical File, Place & Date of Declaration • Lieu & Date de déclaration • Plaats & datum verklaringsaflegging • Ort und Datum
dieser Erklärung • Luogo e data della dichiarazione • Sted og dato for erklæringen • Plats & datum för deklaration • Lausunnon paikka ja
päivämäärä • Lugar y fecha de la declaración • Local e data da declaração
Technical Director
Ransomes Jacobsen Limited
Central Avenue, Ransomes Europark,
Ipswich, England, IP3 9QG
01.09.2004
T Lansdell
Technical Director
Certificate Number • Numéro du certificat • Certificaatnummer • Zertifikat Nummer •
Numero certificato • Certifikatnummer • Certifikat nummer • Sertifikaattinumero •
Número de certificado • Número do Certificado 4126000 (Rev.2)
4 SPECIFICATIONS

GB-10
JACOBSEN G-PLEX III Series: DN & DP
SAFETY AND OPERATORS MANUAL
GB
5 DECALS
5.1SAFETYDECALS
LWA
105
05
dB
SAFETY&INSTRUCTIONDECALS
1 A903488 DoNotOpenorRemove
Safety Shields While the Engine is
Running.
2 838419 Diesel Fuel Only
4 840065 SpeedControl
6 A911410 DangerofExplosionifthe
BatteryTerminalsareShortCircuited.
8 A903493 AvoidFluidEscaping
UnderPressure. ConsultTechnical
ManualforServiceProcedures.
9 A903489 Keepa SafeDistance
fromtheMachine.
10 A903491 ReadOperator'sManual.
11 A903492 Stay Clear of Hot
Surfaces.
13 838363 EngineSpeedControl.
14 838367 Parking Brake ‘P’.
15 840748 Keephandsoutofmoving
parts. Shutof engine and remove key
beforeservicingequipment.
18 A903477 MaximumSoundPower
Level.
19 A903950 TyrePressure.
20 A911416 Maximumpermitable
workingslope.
21 A911430 JackingPoint
25 A293952 PaddleControl. Mow/
Raise Cutting Units.
26 A923953 Footswitch Control. Mow/
Raise Cutting Units.

GB-11
GB
JACOBSEN G-PLEX III Series: DN & DP
SAFETY AND OPERATORS MANUAL
6 CONTROLS
6.1 HANDCONTROLS-DIESEL
1. Voltmeter
2. HourMeter
3. HeadlightSwitch
4. EngineOilWarningLight
5. IgnitionSwitch
6. Throttle
8. Pre–HeatSwitchand GlowPlugLight
9. TemperatureGaugeAndWarningLight
10. ReelEnableSwitch
Voltmeter
indicatesbattery condition.
Headlight Switch
turns the headlights on and off.
Engine Oil Warning Light
will come on when the engine oil pressure is too low
foroperation.
Ignition Switch
hasfourpositions:
OFF-preventsallelectrical functions from
operating. Switch must be in the OFF position to
removethekey.
ON-fornormaloperation.
START- engages thestarter. Releasethe key after
engine starts (the switch automatically returns to
ON).
ACC. - has no function on this unit.
NOTE
If the engine fails to start, or if it “dies” for any
reason, the ignition switch must be returned to
the OFF position before restarting is attempted.
This feature prevents damage to the starter and
flywheel teeth that can occur if the starter is
engaged while the engine is running. Wait 30
seconds before restarting engine.
When the ignition is switched on, if the
units are in the lowered position they will
raise. It should be ensured that
operators/bystanders are clear of all
moving parts before the ignition switch is
switched on.
WARNING
! !
Throttle
Pushallthewayforwardfornormalengineoperating
speed, and all the way back for idle.
Hour Meter
recordsthe number ofhours theengine hasrun. Use
thehourmeter to manageagoodscheduled
maintenanceprogram(refertotheMaintenance
Guide).
Temperature Gauge and Warning Light
gaugeindicatescoolanttemperatureandlightwarns
ofoverheatsituation.
Reel Enable Switch
This switch must be in the on position (1) in order for
the reels to rotate. The switch must be in the off
position (0) for the unit to be started.
Preheat Switch & Glow Plug Light
With the ignition switch in the 'ON' position, hold the
preheat switch in the 'ON' position until the indicator
lamp go's out. The engine can now be started.

GB-12
JACOBSEN G-PLEX III Series: DN & DP
SAFETY AND OPERATORS MANUAL
GB
6.1.1 HANDCONTROLS-GASOLINE
1. Voltmeter
2. HourMeter
3. HeadlightSwitch
4. ReelEnableSwitch
5. EngineOilWarningLight
6. IgnitionSwitch
7. Throttle
8. Choke
Voltmeter
indicatesbattery condition.
Headlight Switch
turns the headlights on and off.
Engine Oil Warning Light
will come on when the engine oil pressure is too low
foroperation.
Ignition Switch
hasfourpositions:
OFF-preventsallelectrical functions from
operating. Switch must be in the OFF position to
removethekey.
ON-fornormaloperation.
START- engages thestarter. Releasethe key after
engine starts (the switch automatically returns to
ON).
ACC. - has no function on this unit.
NOTE
If the engine fails to start, or if it “dies” for any
reason, the ignition switch must be returned to
the OFF position before restarting is attempted.
This feature prevents damage to the starter and
flywheel teeth that can occur if the starter is
engaged while the engine is running. Wait 30
seconds before restarting engine.
When the ignition is switched on, if the
units are in the lowered position they will
raise. It should be ensured that
operators/bystanders are clear of all
moving parts before the ignition switch is
switched on.
WARNING
! !
Throttle
Pushallthewayforwardfornormalengineoperating
speed, and all the way back for idle.
Hour Meter
recordsthe number ofhours theengine hasrun. Use
thehourmeter to manageagoodscheduled
maintenanceprogram(refertotheMaintenance
Guide).
Reel Enable Switch
This switch must be in the on position (1) in order for
the reels to rotate. The switch must be in the off
position (0) for the unit to be started.
Choke
Pull choke control out to start engine. In warm
weathertemperatures,movechokecontrolinslowly
overseveralseconds,incoldweatherallowengine
torunsmoothlybeforeeach change.

GB-13
GB
JACOBSEN G-PLEX III Series: DN & DP
SAFETY AND OPERATORS MANUAL
6 CONTROLS
DONOT attempt to force the direction control
pedal to the neutral (stop) position or to
changedirectionsbeforecomingtoa
complete stop. Abrupt stops or changes in
direction may cause injury.
WARNING
! !
6.2 CONTROLPEDALS
The Direction/Speed Pedal controls speed and
direction.Depressfrontofpedaltogoforward,
depressback of pedal to gobackward. Increased
movementof the pedalwill increasespeed. To slow
and stop the unit, release the pedal completely.
Properbrakingisprovidedbyhydrostatic pressure. If
morebraking isrequired, presson thebrake pedal.
1
2
1.Direction/SpeedPedal
2. Brake Pedal
NOTE
Toreducefatigueduringnormalforwardoperation,
theoperator’sheelshouldrestonthefloorboard
next to the pedal (not on the lower part of the
pedal).
6.3 PARKINGBRAKEPEDAL
The Parking Brake canbe engaged by depressing
the brake pedal until the unit is at a complete stop.
Once the unit is stoped, push the parking brake
latchfoward to hold the brakepedal. Disengage the
parkingbrakebydepressingandreleasingthebrake
pedal.
1. Brake Pedal
2. Park Brake Latch
1
2
6.4 PADDLE/FOOTSWITCHMOW/LIFT
TheMow/Lift Paddle/Footswitch lowers and raises
the cutting heads.
To Lower the Heads: Depress the footswitch or
operatethe paddle. Ifreel enable switchis on, reel
rotationstartswhentheheadsarelowered.
To Raise the Heads: Depress the footswitch or
operatethe paddle. Reel rotation stops whenthe
headsareraised.
1.PaddleControl(Mow/Raise)
2.FootswitchControl(Mow/Raise)
3.IllustrationofPaddle/FootswitchOperati

GB-14
JACOBSEN G-PLEX III Series: DN & DP
SAFETY AND OPERATORS MANUAL
GB
7.1DAILYINSPECTION
1. Performa visualinspection ofthe entireunit, look for signs of wear, loosehardwear andmissing or
damaged components. Check for fuel and oil leaks to ensure connections are tight and hoses and
tubesare ingood condition.
2. Check the fuel supply, radiator coolant level, crankcase oil level and air cleaner. All fluids must be at
the full mark with the engine cold.
3. Make sure all cutting units are adjusted to the same height of cut.
4. Checkalltyresforproper inflation.
5. Test the operator presence and safety interlock system.
The daily inspection should be performed
only when the engine is off and all fluids
are cold. Lower implements to the
ground, engage parking brake, stop
engine and remove ignition key.
CAUTION
7 OPERATION

GB-15
GB
JACOBSEN G-PLEX III Series: DN & DP
SAFETY AND OPERATORS MANUAL
7 OPERATION
7.2OPERATORPRESENCEANDSAFETYINTERLOCKSYSTEM
1. Theoperatorpresence &safety interlocksystem prevents theengine fromstarting unlessthe parking
brake is engaged, the mowing device is off and the operator is in the seat. The system also stops the
engineiftheoperatorleavestheseatwiththemowingdeviceengaged or the parkingbrakedis-
engaged.
2. Perform each of the following tests to ensure the operator presence & safety interlock system is
functioning properly. Stop the test and have the system inspected and repaired if any of the tests fail
as listed below:
• The engine does start in test 1;
• The engine does not start during tests 2 or 3;
• TheengineStops duringtest4.
3. Refer to the chart below for each test and follow the check (9) marks across the chart. Shut engine
offbetweneach test.
Test1:Representsnormalstartingprocedure. The operator isseated,parkingbrakeisengaged, the
operatorsfeetareoffthepedalsandthemowerengagementdeviceisoff. Theengine should start.
Test 2: The engine must not start if the mower engage device is on.
Test 3: The engine must not start if the parking brake is not applied.
Test4: Startthe enginein thenormal manner,then turnmower engage device on and lift your weight
off the seat. 
Never operate the equipment with the
operator presence & safety interlock
system disengaged or malfunctioning. Do
notdisconnector bypass any switch.
WARNING
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GB-16
JACOBSEN G-PLEX III Series: DN & DP
SAFETY AND OPERATORS MANUAL
GB
7 OPERATION
7.3OPERATINGPROCEDURE
1. Under no circumstances should the engine be started without the operator seated on the tractor.
2. Donotoperatetractor or attachmentswithloose,damaged or missingcomponents.Whenever
possible mow when grass is dry
3. First mow in a test area to become thoroughly familiar with the operation of the tractor and control
levers.
Note: To prevent damage to the reel and bottom blade never operate the reels when they are not
cutting grass. Excessive friction and heat will develop between the bottom blade and reel
and damage the cutting edge.
4. Studythe area to determine the best and safestoperating procedure.Consider theheight ofthe
grass, type of terrain, and condition of the surface. Each condition will require certain adjustments
orprecautions.
5. Neverdirectdischargeofmaterialtowardbystanders,norallowanyonenearthemachinewhilein
operation.Theowner/operatorisresponsibleforinjuriesinflictedtobystandersand/ordamagetotheir
property.
6. Usediscretionwhenmowingneargravelareas (roadway, parkingareas,cartpaths,etc.).Stones
dischargedfrom theimplement maycause seriousinjuries tobystanders and/ordamage the
equipment.
7. Disengagethe drive motorsand raisethe implementswhen crossingpaths orroads. Look out for
traffic.
8. Stop and inspect the equipment for damage immediately after striking an obstruction or if the
machinebeginstovibrateabnormally.Havetheequipmentrepairedbeforeresumingoperation.
To help prevent injury, always wear safety
glasses, leather work shoes or boots, a
hard hat and ear protection.
CAUTION
Pick up all debris you can find before
mowing. Enter a new area cautiously
Always operate at speeds that allow you to
have complete control of the tractor
CAUTION
Before you clean, adjust, or repair this
equipment, always disengage all drives,
lower implements to the ground, engage
parking brake, stop engine and remove
key from ignition switch to prevent injuries.
WARNING

GB-17
GB
JACOBSEN G-PLEX III Series: DN & DP
SAFETY AND OPERATORS MANUAL
9. Slowdown and use extra care on hillsides. Read Section 3.7. Use caution when operating near drop
offpoints.
10. Never use your hands to clean cutting units. Use a brush to remove grass clippings from blades.
Blades are extremely sharp and can cause serious injuries
7 OPERATION
DONOTUSEONSLOPESGREATERTHAN15°
WARNING
OPERATION OF THE MACHINE
Read the Safety Instructions.
7.4 MOWINGPROCEDURES
NOTE: Alwaysremove the flagand inspectthe
greenbeforemowing.Removedebrisor
other objects that may damage the reels
and/orbedknives.““Operatorsshould
practice mowing in a clear area to become
familiarwithraisingandloweringthe
mowingheads.Theyshouldbeawarethat
the center cutting head raises and lowers
slightly later than the front ones, allowing
the center cut to begin and end at the
same point as the two side cuts.
Practicingwillhelp the operatorbecome
proficient at starting and stopping each
pass within a foot or two of the edge of the
green.Thenonlyonefinalpassaroundthe
greenwillbe required tofinishthe
operation.
Severalfactorsmay determinethedirectionofthe
mowingpattern,sandtrapsorotherhazardsnear
the green, trees etc. that can restrict where turns
aremade. The terrainof the greenmay also be a
factor, but if conditions allow, always try to mow the
green in a different direction than the last time it was
mowed.
1. Stop the unit just before reaching the
green. Make sure the reel enable switch is
in the "ON" position. Proceed onto the
greenatmowingspeedandlowerthe
mowing heads as the front grass catchers
cross the leading edge of the green. At the
end of the pass, raise the heads as the front
grass catchers cross the trailing edge of the
green.
2. Always make mowing passes across the
green in a straight line. DO NOT start to
make the turn for the next pass until the
rear wheel is completely off the green, this
will eliminate the possibility of the tires
tearingtheturfduringtheturn.
3. Eachsuccessivepassshouldoverlapthe
previousone by twoor three inches(51 or
76mm)(a painted marktwo or three inches
(51or 76mm) in from theouter edges of the
two front grass catchers will help align
eachoverlappingpass).
4. Afterall of the straight passes have been
made,make one finalpass aroundthe outer
edgeof the green.This final passshould
always be in the opposite direction from the
last time the green was mowed.
5. Withthe engine stopped or the reel enable
switch in the "OFF" position, empty the
grasscatchersbeforeproceedingtothe
nextgreen.
NOTE: To avoiddamagetothegreen,NEVERstop
theforwardmotionofthemoweronthe
greenwiththereelsturning.
Stoppingthe mower on a wetgreen may
causewheelindentations.

GB-18
JACOBSEN G-PLEX III Series: DN & DP
SAFETY AND OPERATORS MANUAL
GB
8 SETUP
8.1 SET UP
IMPORTANT!
CALIFORNIAPUBLICRESOURCESCODE,
SECTIONS4428-4442,REQUIRESPARK
ARRESTERSWHENOPERATINGANYINTERNAL
COMBUSTIONENGINEUSINGHYDROCARBON
FUELS,ONFOREST-,BRUSH-,ORGRASS-
COVEREDLANDS.
If a leak is suspected, use a piece of
cardboard or wood, NOT your, to check
for leaks.
Hydraulic Fluid escaping under pressure
can penetrate skin and do serious
damage. Immediate medical assistance
mustbesought.
Serious infection or reaction can develop
if proper medical treatment is not
administered immediately.
WARNING
Setup procedures must be performed as
specified by properly trained service
personnel only.
WARNING
Check the hydraulic system. Make sure the
connections are tight and all hoses and lines
are in good condition before pressurizing the
system. Hydraulic spstem should be allowed to
warm-up and re-check connections for leaks.
NOTE: Any reference to the right, left, front,
or rear of the unit will always be
determined from the operators seated
position.