Jacobsen R-311T User manual

WARNING:If incorrectly used, this machine can 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.
Dealer’s Manual
Jälleenmyyjän opas
When Performance Matters.
™
VAROITUS
Laitteen virheellinen käyttö voi aiheuttaa vakavia vahinkoja. Laitteen
käyttäjille ja huoltajille on opetettava laitteen asianmukainen käyttö, heitä on
varoitettava mahdollisista vaaroista ja heidän on luettava koko käyttöopas
ennen laitteen valmistelua, käyttöä, säätämistä ja huoltamista.
WARNING
If incorrectly used, this machine can 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
GB FI
United Finland
Kingdom
R-311T™Rotary Mower with
folding ROPS
R-311T
™
ruohonleikkuri taittuvalla
kaatumissuojausjärjestelmällä
(ROPS)
69171 – Kubota®V2403-M-T
4227720-FI-Rev.A
Myyjä
Tämän ohjeen tarkoituksena on auttaa myyjän
henkilökuntaa laitteiston käyttöönotossa ja
valmistelussa ennen asiakkaalle toimittamista.
Säilytä kopio ohjeista asiakaskansiossa.
Älä poista turvallisuus- ja käyttöopas tai
osa- ja huolto-opas.
Lisätietoja on:
• Turvallisuus- ja käyttöopas
• Osa- ja huolto-opas
Käytä tämän käyttöohjeen takasivulla olevaa
toimitusta edeltävää tarkistusluetteloa. Voit
antaa asiakkaalle kopion tarkistusluettelosta,
kun tuote toimitetaan.

en-2
CONTENTS
This manual contains safety and operating instructions for
your new Jacobsen mower. This manual should be stored
withtheequipmentforreferenceduringoperation.
Beforeyouoperateyourmower,youandeachoperatoryou
employ should read the manual carefully in its entirety. By
following the safety, operating, and maintenance
instructions,youwillprolongthelifeofyourequipmentand
maintainitsmaximumefficiency.
If additional information is needed, contact your Jacobsen
Dealer.
The serial plate is located on the right rear frame rail.
Jacobsen recommends you record these numbers below
foreasyreference.
®
P.O. BOX 7708,
CHARLOTTE,
NC 28241, USA
kg kg kg kW
Jacobsen.com
1-800-848-1636 (US)
FOREWORD
CONTENTS CONTENTS
1SAFETY
1.1 OperatingSafety ...................................................3
1.2 ImportantSafetyNotes..........................................4
2 CONTROLS
2.1 Icons.....................................................................5
2.2 ControlDescriptions..............................................7
2.3 ControlPanelLevers .............................................8
2.4 ControlPanelSwitches .........................................9
2.5 GaugesandCircuitBreakers .................................9
2.6 WarningLights ....................................................10
3 SET UP
3.1 InitialInspectioN..................................................12
3.1 InitialAssembly ...................................................12
3.2 OperatingChecks ...............................................13
3.2 InterlockSystem .................................................13
4ADJUSTMENTS
4.1 General............................................................... 14
4.2 BallJoints ........................................................... 14
4.3 EngineAlternatorBelt ......................................... 14
4.4 BrakePedal ........................................................ 15
4.5 ParkingBrakeSwitch .......................................... 15
4.6 CruiseControlSwitch .......................................... 16
4.7 MowSpeed ......................................................... 16
4.8 WeightTransfer .................................................. 16
4.9 HydroNeutral...................................................... 17
4.10 ReverseSensingSwitch ..................................... 17
4.11 SteeringToeIn.................................................... 18
4.12 TurningRadius ................................................... 18
4.13 SteeringStopBolts.............................................. 18
4.14 CuttingHeight ..................................................... 19
4.15 LevelingFrontMower.......................................... 20
4.16 ServicingFrontDeck ........................................... 20
4.17 TorqueSpecification ........................................... 21
4.18 SpecificTorque................................................... 21
5 TROUBLESHOOTING
5.1 General............................................................... 22
© Copyright 2010, Jacobsen, A Textron Company. “All rights
reserved, including the right to reproduce this material or portions
thereof in any form.”
Proposition 65 Warning
Thisproductcontainsoremitschemicals
known to the State of California to cause
cancer and birth defects or other
reproductiveharm.
Litho In U.S.A. 4-2010
2006/42/EC
These are the Original instructions verified by Jacobsen A
TextronCompany.

SAFETY 1
en-3
1 SAFETY
1.1 OPERATING SAFETY ______________________________________________________
1. Safety is dependent upon theawareness, concern,and
prudenceofthosewhooperateorservicetheequipment.
Neverallowminorstooperateanyequipment.
2. It is your responsibility to read this manual and all
publications associated with this equipment (Parts and
Maintenance Manual, Engine Manual, and
attachments/accessories instruction sheets). If the
operator cannot read English it is the owner’s responsi-
bility to explain the material contained in this manual to
them.
3. Learn the proper use of the machine, the location and
purpose of all the controls and gauges before you
operate the equipment. Working with unfamiliar
equipmentcanleadtoaccidents.
4. Neverallowanyonetooperateorservicethemachineor
itsattachmentswithout proper trainingand instructions;
orwhileundertheinfluenceofalcoholordrugs.
5. Wearall thenecessaryprotectiveclothing and personal
safety devices to protect your head, eyes, ears, hands,
andfeet.Operatethemachineonlyindaylightoringood
artificiallight.
6. Evaluate the terrain to determine what accessories and
attachments are needed to properly and safely perform
the job. Only use accessories and attachments
approvedbyJacobsen.
7. Stay alert for holes in the terrain and other hidden
hazards.
8. Inspectthearea wheretheequipmentwill be used.Pick
upallthedebrisyoucanfindbeforeoperating.Bewareof
overhead obstructions (low tree limbs, electrical wires,
etc.)andalsoundergroundobstacles(sprinklers,pipes,
tree roots, etc.). Enter a new area cautiously. Stay alert
forhiddenhazards.
9. Never direct discharge of material toward bystanders,
nor allow anyone near the machine while in operation.
The owner/operator can prevent and is responsible for
injuries inflicted to themselves, to bystanders, and
damagetoproperty.
10. Do not carry passengers. Keep bystanders and pets a
safedistanceaway.
11. Never operate equipment that is not in perfect working
order or is without decals, guards, shields, discharge
deflectors,orotherprotectivedevicessecurelyfastened
inplace.
12. Neverdisconnectorbypassanyswitch.
13. Donotchangetheenginegovernorsettingoroverspeed
theengine.
14. Carbon monoxide in the exhaust fumes can be fatal
when inhaled. Never operate the engine without proper
ventilationorinanenclosedarea.
15. Fuelishighlyflammable;handlewithcare.
16. Keep the engine clean. Allow the engine to cool before
storingandalwaysremovetheignitionkey.
17. Disengage all drives and engage parking brake before
starting the engine (motor). Start the engine only when
sittinginoperator’sseat,neverwhilestandingbesidethe
unit.
18. Equipment must comply with the latest federal, state,
and local requirements when driven or transported on
public roads. Watch out for traffic when crossing or
operatingonornearroads.
19. Localregulationsmayrestricttheageoftheoperator.
20. Operate the machine up and down the face of slopes
(vertically),notacrosstheface(horizontally).
21. To prevent tipping or loss of control, do not start or stop
suddenlyonslopes.Reduce speed whenmakingsharp
turns.Usecautionwhenchangingdirections.
22. Always use the seat belt when operating mowers
equippedwithaRollOverProtectiveStructure(ROPS).
Never use a seat belt when operating mowers
without a ROPS or with the ROPS folded.
23. Keep legs, arms, and body inside the seating
compartmentwhilethevehicleisinmotion.
24. Disconnect battery and controller electrical connectors
beforeperforminganyweldingonthismower.
This machine is to be operated and maintained as specified in this manual and is intended for the professional
maintenance of specialized turf grasses. It is not intended for use on rough terrain or long grasses.
WARNING
EQUIPMENT OPERATED IMPROPERLY OR BY UNTRAINED PERSONNEL CAN BE DANGEROUS.
Familiarizeyourselfwiththelocationandproperuseofallcontrols.Inexperiencedoperatorsshouldreceiveinstruction
fromsomeonefamiliarwiththeequipmentbeforebeingallowedtooperatethemachine.
!

1 SAFETY
en-4
1.2 IMPORTANT SAFETY NOTES________________________________________________
This safety alert symbol is used to alert you to potential hazards.
DANGER-Indicatesanimminentlyhazardoussituationwhich,ifnotavoided,WILLresultindeathorseriousinjury.
WARNING-Indicatesapotentiallyhazardoussituationwhich,ifnotavoided,COULDresultindeathorseriousinjury.
CAUTION- Indicatesapotentiallyhazardoussituationwhich,ifnotavoided,MAYresultinminorormoderateinjuryand
propertydamage.Itmayalsobeusedtoalertagainstunsafepractices.
NOTICE-Indicatesapotentiallyhazardoussituationwhich,ifnotavoided,MAYresultinpropertydamage.Itmayalsobe
usedtoalertagainstunsafepractices.
For pictorial clarity, some illustrations in this manual may show shields, guards, or plates open or removed. Under no
circumstances should this equipment be operated without these devices securely fastened in place.
By following all instructions in this manual, you will prolong the life of your machine and maintain its maximum efficiency.
Adjustmentsandmaintenanceshouldalwaysbeperformedbyaqualifiedtechnician.
If additional information or service is needed, contact your Authorized Jacobsen Dealer who is kept informed of the latest
methodstoservicethisequipmentandcanprovidepromptandefficientservice.
WARNING
TheInterlockSystemonthismowerpreventsthemowerfromstartingunlessthe
parkingbrakeisEngaged,PTOswitchisoff,andtractionpedalisinNeutral.The
systemwill stopthe engine if the operatorleaves the seatwithoutengagingthe
parkingbrakeorsettingthePTOswitchoff.
NEVERoperatemowerunlesstheInterlockSystemisworking.
!
WARNING
1. Beforeleavingtheoperator’spositionforanyreason:
a. ReturntractionpedaltoNeutral.
b. Disengagealldrives.
c. Lowerallimplementstotheground.
d. Engageparkingbrake.
e. Stopengineandremovetheignitionkey.
2. Keep hands, feet, and clothing away from moving parts. Wait for all
movementtostopbeforeyouclean,adjust,orservicethemachine.
3. Keeptheareaofoperationclearofallbystandersandpets.
4. Nevercarrypassengers,unlessaseatisprovidedforthem.
5. Neveroperatemowingequipmentwithoutthedischargedeflectorsecurely
fastenedinplace.
!

CONTROLS 2
en-5
2 CONTROLS
2.1 ICONS ___________________________________________________________________
WARNING
NeverattempttodrivethemowerunlessyouhavereadtheSafetyand OperationManual and
knowhowtooperateallcontrolscorrectly.
Familiarize yourself with the icons shown above and what they represent. Learn the location
andpurposeofallthecontrolsandgaugesbeforeoperatingthismower.
Coolant
Temperature
D
Read Manual Engine Throttle
High Low
Hour Meter
Parking Brake Diesel Fuel Implement Position
Left Center Right
Cruise Control
Engine
Off Run Start
Service Brake
Drive Mode
2WD 4WD 4WD
Momentary
Engine Oil Air Filter
Traction
Forward Reverse
PTO Switch
Engage Disengage
Filter ServiceLights
Work Road
Horn
Cutting Units
Raise Lower
Hydraulic Oil
Temperature Pressure
Glow Plug
Weight Transfer
to Decks
Increase Decrease
Engage
Disengage
Filter Service
!

2 CONTROLS
en-6
J-T XXXXXX-XXJ-T XXXXXX-XX
77
93
° C
170
200
° F
10 16
12 14
VOLTS
SOLID STATE
HOURS
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10 10 10 30 30 10
10 10 10 30 30 10
4192000
E
I
M
Q
U
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F
J
N
R
V
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G
K
O
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A
AA
B
C
D
H
AB
H
L
P
T
X
ASteeringTiltLever
BTractionPedal
CMowSpeedStop
DBrakePedal
EParkingBrakeLatch
FWeightTransfer
GSeatTiltLever
HTransportLatches
IHorn/TestSwitch
JLeftWingLift/LowerLever
KFrontLift/LowerLever
LRightWingLift/LowerLever
MThrottleLever
NPTOSwitch
OWingDeckSwitch
PFrontDeckSwitch
QLightSwitch(Optional)
R2WD/4WDSwitch
SCruiseControlSwitch
TIgnitionSwitch
UGlowPlugSwitch
VWarningLights
WFuelGauge
XVoltMeter
YHourMeter
ZCircuitBreakers
AA TemperatureGauge
AB RemoteBatteryTerminals

CONTROLS 2
en-7
2.2 CONTROL DESCRIPTIONS __________________________________________________
A. Tilt Steering Lever
Pull lever up to release steering column. Tilt
columnupordowntopositiondesired.Release
levertolocksteeringcolumninplace.
B. Traction Pedal
Press front of pedal (B1) down for forward travel.
Releasepedaltoslowmowerandstop.
Press rear of pedal (B2) down for reverse travel.
Releasepedaltoslowmowerandstop.Allowmowerto
cometoacompletestopbeforereversingdirections.
Figure 2A
C. Mow Speed Stop
Limitsforwardspeedwhilemowing.Tooperateatlower
travelspeed while mowing, rotate lever(Position C1)
so it contacts stop screw on floor board when forward
travelpedalispressed.Totravelatfullspeed,setlever
in position shown (Position C3). Stop screw (C2)can
be adjusted to set specific mow speeds. See Parts &
Maintenance Manual.
D. Brake Pedal
Press pedal down to slow or stop the machine and to
disengage cruise control. Never press both service
brakepedalandtractionpedalatthesametime.
Figure 2B
E. Parking Brake Lock/Release
To lock parking brake, hold brake pedal (C) down and
press lock (E1)until it engages. To disengage, press
brakepedalrelease(E2).
F. Weight Transfer
Used to adjust the ground pressure of the decks. See
Parts & Maintenance Manual.
G. Seat Tilt Lever
Usedtoadjusttherearseatangle.Liftuponleverandtilt
seat back as required until seat is in the desired
position.Releasethelevertolocktheseatinposition.
H. Transport Latches
Usedtopreventaccidentalloweringofthewingcutting
unitsduringtransport.
I. Horn/Test Switch
Used to sound horn and test system warning lights.
Depress switch, horn should sound and all warning
lights, except for glow plug, engine oil and charge
pressure,shouldlight.
CAUTION
Never adjust steering while mower is moving. Stop unit
andengageparkingbrakeswitchbeforeadjusting.
NOTICE
Engine will stop if traction pedal is depressed in either
directionwiththeparkingbrakeengaged.
Disengage parking braked before attempting to drive
mower.
!
B1
B2
C1
C2
C3
Transport Speed Mow Speed
E1
E2
D

2 CONTROLS
en-8
2.3 CONTROL PANEL LEVERS _________________________________________________
J. Left Wing Lift/Lower Lever
Raisesandlowersleftwingdeck.Pushleverforwardto
lower left wing deck. Pull lever back to raise left wing
deck.Deckwillstartautomaticallywhenloweredwhen
bothPTO(N) andwingdeck(O) switchesareengaged.
K. Front Lift/Lower Lever
Raises and lowers front deck. Push lever forward to
lower front deck. Pull lever back to raise front deck.
Deck will start automatically when lowered when both
PTO(N) andfrontdeck(P) switchesareengaged.
L. Right Wing Lift/Lower Lever
Raisesand lowers right wing deck.Push leverforward
to lower right wing deck. Pull lever back to raise right
wing deck. Deck will start automatically when lowered
when both PTO (N) and wing deck (O) switches are
engaged.
M. Throttle Lever
Regulates engine speed. Push lever forward to
increase speed or pull lever back to decrease speed.
Always operate mower at full throttle during normal
operation.
Figure 2C
M
JKL

CONTROLS 2
en-9
2.4 CONTROL PANEL SWITCHES _______________________________________________
N. PTO Switch
Lift up and push switch lever forward to engage decks
and switches (O and P). Pull switch lever back to
disengage.
O. Wing Deck Switch
Used to engage or disengage both wing decks.
Depressfrontofswitchtoengagedecks.Returnswitch
tocenterpositiontodisengagedecks.Pressingrearof
switch has no function. PTO switch (N) must be
engaged and cutting units lowered for switch to
operate.
P. Front Deck Switch
Usedtoengageordisengagefrontdeck.Depressfront
of switch to engage deck. Return switch to center
positiontodisengagedeck.Pressingrearofswitchhas
no function. PTO switch (N) must be engaged and
cuttingunitsloweredforswitchtooperate.
Q. Light Switch
Pressfrontofswitchforroadlights.Pressrearofswitch
for work lights. Return switch to center position to shut
offlights.
R. 2WD / 4WD Switch
Used to switch mower between 2WD and 4WD mode.
Depress front of switch for 4WD in forward direction
only.Place switch in centerposition for2WD. Depress
rear of switch for momentary 4WD in reverse. Do not
engageordisengage4WDwhilemowerismoving.
S. Cruise Control Switch
Depress traction pedal for desired speed and press
front of switch to engage cruise control. Depress
servicebrakepedalorpressrearofswitchtodisengage
cruisecontrol.
T. Ignition Switch
Used to start and stop the engine. The ignition switch
hasthreepositionsOFF,RUN,andSTART.Toprevent
unauthorized use of this mower, remove ignition key
whennotinuse.
U. Glow Plug Switch
Usedtoenergizetheglowplugsbeforestarting.Donot
holdswitchformorethan7seconds.GlowPluglightwill
beonwhenswitchisdepressed.
2.5 GAUGES AND CIRCUIT BREAKERS __________________________________________
V. Warning Lights
Alerts the operator to conditions requiring immediate
action.See Section 2.6.
W. Fuel Gauge
Displaysfuellevelintank.Donotallowmowertorunout
offuel.
X. Voltmeter
Displayselectricalsystemvoltage.
Y. Hour Meter
Records engine operating hours. The hour meter can
be used to time maintenance intervals or mowing
operations.
Z. Circuit Breakers
Usedtoprotectelectricalsystem.Pushdownonrubber
boottoresetcircuitbreaker.
AA.Temperature Gauge
Displays engine coolant temperature. Do not operate
moweriftemperatureisabove230°F(110°C).
AB.Remote Battery Terminals
Used for connecting jumper cables with wing decks in
raised position. Keep red boot of positive remote
terminalinplacewhennotinuse.

2 CONTROLS
en-10
2.6 WARNING LIGHTS_________________________________________________________
TheR-311mowermonitorsvitalmachinesystems.Itusesa
combination of warninglights and an audible alarm to alert
the operator of conditions requiring immediate action.
Whenanalertoccursfollowthegeneralguidelineslistedin
the chart below, and any specific actions outlined by the
groundssuperintendentorservicemanager.
To test alarm system:
Turn ignition switch to RUN. The engine oil light (T1)and
chargepressurelight(T3) shouldcomeon.Alllightsshould
gooutonceengineisstarted.
Press horn/test switch (I). Horn will sound and Engine
Coolant Temperature (T2),Return Filter(T4), Hydraulic Oil
Temperature (T5), Charge Filter (T6), and Air Filter (T7)
lightswillcomeon.
Withengineoff, pressglowplugswitch(U). Glowpluglight
(T8) willcomeon.
Turn signal lights (T9)are only used with the optional cab
installed.
Thissystemmonitors:
T1. Engineoilpressure
T2. Enginecoolanttemperature
T3. Chargepressure
T4. Hydraulicreturnoilfilter
T5. Hydraulicoiltemperature
T6. Hydraulicchargefilter
T7. Airfilter
T8. GlowPlug
Figure 2D
Alert Action
T1. Engine Oil Pressure - Alarm
sounds and oil pressure light
comeson.Oilpressurelow.
Stop mower immediately, lower implementsand shut off engine!Inspect
oillevelinengine.Ifoillightremainsonwithoilatproperlevel,shutoffengineand
towortrailermowerbacktoservicearea.NEVERoperateenginewithoillighton,
severedamagetotheenginecanoccur.
T2. Engine Coolant Temperature
Horn sounds. Engine coolant
temperaturehigh.
Stop mower immediately, lower implements and shut off engine!
Removedebrissuchasleavesandgrassclippingsthatmayberestrictingairflow
throughrearscreenonhoodandareabetweenradiatorandoilcooler.Ifengine
continuestorunhot,returnmowertoservicearea.
CAUTION: Engine coolant is under pressure. Turn engine off and allow
fluidtocoolbeforecheckingfluidleveloraddingcoolanttoradiator.
T1
T9
T2T3T4T5T6T7T8T9
J-T XXXXXX-XX
77
93
˚C
170
200
˚F
10 16
12 14
VOLTS
SOLID STATE
HOURS
00000
10 10 10 30 30 10
10 10 10 30 30 10
M
Q
UY
J
NRV
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K
O
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AA
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PTX

CONTROLS 2
en-11
T3. Charge PressureLightstayson
afterstartingengineor comes on
during operation. Indicates low
charge pressure in traction
system.
Stop mower immediately, lower implements and shut off engine!Check
hydraulicoillevelinmaintank.Visuallyinspectmowerforobvioussignsofleaks
aroundconnections,hosesandtubes.Towortrailermowerbacktoservicearea.
Neveroperatemowerwithchargepressurelighton,severedamagetohydraulic
systemcomponentscanresult.
CAUTION:Hydraulicsystemisunderpressure.Turnengineoffandallow
oiltocoolbeforecheckingoilleveloraddingoiltotank.
T4. Hydraulic Return Oil Filter -
Oilfilterwarninglightcomeson. Return mower to a service area as soon as possible.Changehydraulic returnoilfilter.
Continuedonnextpage
T5. Hydraulic Oil Temperature
Horn sounds. Hydraulic oil
temperaturehigh.
Stop mower, disengage drives and lower implements.Runengineatlow
idlefor afew minutes untillight goesoff.If light remains on, shut off engine and
allow hydraulic system to cool. Remove debris such as leaves and grass
clippings that may be restricting air flow through rear screen on hood and area
betweenradiatorandoilcooler.Ifhydraulicscontinuestorunhot,returnmower
toservicearea.
CAUTION:Hydraulicsystemisunderpressure.Turnengineoffandallow
oiltocoolbeforecheckingoilleveloraddingoiltotank.
T6. Hydraulic Charge Oil Filter -
Oilfilterwarninglightcomeson. Return mower to a service area as soon as possible.Changehydraulic chargeoilfilter.
T7. Air Filter - Air filter warning light
comeson. Return mower to a service area as soon as possible.Changeairfilter.
T8. Glow Plug - Glow plug light
comeson. Glowplugswitchdepressed.Donotenergizeglowplugswithenginerunning.
Alert Action

3 SETUP
en-12
3 SETUP
3.1 INITIAL INSPECTION_______________________________________________________
The set-up and testing of the unit should always be
performedbyatrainedtechnicianfamiliarwiththeoperation
ofthisequipment.
Read each instruction completely and make sure you
understand it before proceeding with the assembly. Stay
alertforpotentialhazardsandobeyallsafetyprecautions.
The RIGHT and LEFT, FRONT and REARof the machine
arereferencedfromtheoperator’sseat,facingforward.
Accessoriesnotincludedwiththisproductmustbeordered
separately. See instructions provided with accessory for
installationandparts.
3.1 INITIAL ASSEMBLY________________________________________________________
1. Check tires for proper inflation. Tires have been over
inflatedfortransport.
Mower:
Front- 16-20psi(110-138kPa)
Rear-10-12psi(69-83kPa)
Deck-20-25psi(138-173kPa)
2. Checkbatteryconnections
Make absolutely certain the ignition switch is “Off” and
thekeyhasbeenremovedbeforeservicingthebattery.
Verify battery polarity before connecting or
disconnectingthebatterycables.
Wheninstallingthebattery,alwaysassembletheRED,
positive(+)batterycablefirst,andtheground,BLACK,
negative(-)cablelast.
Make sure battery is properly installed and secured to
thebatterytray.
Tightencablessecurelytobatteryterminalsandapplya
light coat of silicone dielectric grease to terminals and
cable ends to prevent corrosion. Keep vent caps and
terminalcoversinplace.
3. Cut bands securing front deck and lower front deck to
theground.
4. Checkthatfrontdeckisleveled.[Section 4.15]
5. Set cutting height to customer specification. [Section
4.14]
6. Checkengineoilandaddfueltotank.Startengine.
7. Raisewingliftarmstothierfullyraisedposition.
8. Remove shipping bands, disengage wing transport
latches, and lower wing mowers to the ground. If
mowers will not lower, adjust weight transfer knob as
required.[Section 4.8]
CAUTION
Donotattempttodrivethemowerunlessyouarefamiliar
withthistypeofequipmentandknowhowtooperateall
controlscorrectly.
!
WARNING
Make sure the mower is parked on a solid and level
surface.Neverworkonamowerthatissupportedonlyby
thejack.Alwaysusejackstands.
CAUTION
Alwaysuseinsulatedtools,wearprotectiveglassesor
gogglesandprotectiveclothingwhenworkingwith
batteries.Youmustreadandobeyallbattery
manufacturer’sinstructions.
!
!
WARNING
Never operate the engine without proper ventilation;
exhaustfumescanbefatalwheninhaled.
NOTICE
Allowenginetooperateatlowidleforatleastoneminute
beforeoperatingmower.
When starting engine at temperatures below 40° F (4°
C), operate the engine at low idle for five minutes to
preventdamagetoengineorhydraulicsystem.
!

SETUP 3
en-13
3.2 OPERATING CHECKS ______________________________________________________
After the initial inspection test the mower for proper
operation. If mower is being fitted with an accessory you
may want to assemble these and check operation of the
mowerwithaccessoryattached.
1. TesttheInterlocksystem.
[Section 3.2].
2. Start mower and check that switches, pedals, and
controlsoperateasdescribed.
[Section 2.2]
3. Checkthatwarninglightsandalarmareworking.
4. Check that brake pedal does not have more than one
inchfreetravelbeforeengaging.
5. Operatetractionpedalandcheckthatmoweroperates
smoothly in both directions. Check that mower stops
whentractionpedalisreleased.
6. Check that mower does not creep withengine running
andtractionpedalinneutral.
[Section 4.9]
7. Checkadjustmentoftractionpedalstop.
[Section 4.10]
8. Check that decks raise and lower correctly and that
powertake-offswitchoperates.Makesurebladesturn
offwhendecksareraised.
9. Afteroperation,stopmowerandinspectagainforoilor
3.2 INTERLOCK SYSTEM ______________________________________________________
1. TheInterlockSystempreventstheenginefromstarting
unlesstheparkingbrakeisEngaged,tractionpedalisin
Neutral, and the PTO switch is OFF. The system also
stopstheengineiftheoperatorleavestheseatwiththe
PTOswitchON,tractionpedaloutofneutral,orparking
brakeDisengaged.
2. Perform each of the following tests to insure the
Interlock System is functioning properly. Stop the test
and have the system inspected and repaired if any of
thetests failaslistedbelow:
l theenginedoes not startintest1;
l theenginedoes startduringtests2,3,or4;
l theenginecontinues torunduringtests5or6.
3. Refer to the chart below for each test and follow the
check (4) marks across the chart. Shut engine off
betweeneachtest.
Test 1: Represents normal starting procedure. The
operator is seated, parkingbrake is Engaged, traction
pedal is in Neutral, and the PTO switch is OFF. The
engineshouldstart.
Test 2: The engine must not start if the PTO switch is
ON.
Test 3: Theenginemustnotstartiftheparkingbrakeis
Disengaged.
Test 4:Theenginemustnotstartifthetractionpedalis
notinNeutral.
Test 5:Starttheengineinthenormalmannerthenturn
thePTOswitchONandliftyourweightofftheseat.H
Test 6: Start the engine in the normal manner then
disengage parking brake and lift your weight off the
seat.H
H Liftyourweightoffseat.Theenginewillshutdown.
WARNING
NeveroperateequipmentwiththeInterlockSystem
disconnectedormalfunctioning.Donot disconnect
orbypassanyswitch.
!
Interlock System Check
Test Operator
Seated Parking Brake Traction Pedal in Neutral PTO Switch Engine Starts
Yes No Engaged Disengaged Yes No On Off Yes No
144 4 44
244 44 4
344444
44
54H444
H
64H44 4
H

4 ADJUSTMENTS
en-14
4 ADJUSTMENTS
4.1 GENERAL________________________________________________________________
1. Adjustments and maintenance should always be
performed by a qualified technician. If proper
adjustment cannot be made, contact an authorized
JacobsenDealer.
2. Replace,donotadjust,wornordamagedcomponents.
3. Long hair, jewelry, or loose fitting clothing may get
tangledinmovingparts.
4. Do not change governor settings or overspeed the
engine.
4.2 BALL JOINTS_____________________________________________________________
When adjusting ball joints, be sure cut-out in ball joint is
paralleltothemountingbracket,thensecureinplace.
Figure 4A
4.3 ENGINE ALTERNATOR BELT _______________________________________________
1. Inspect and adjust new alternator belt after the first 10
hours of operation. Check and adjust every 100 hours
thereafter.
2. Adjust the alternator pulley so the belt deflects 9/32 to
11/32in.(7-9mm)with22lb.(10kg)pushatmidpoint
betweenpulleys.Refertoyourenginemanual.
3. To adjust, loosen alternator mounting bolts (A), and
adjust alternator until the proper belt tension is
achieved.
Figure 4B
WARNING
To prevent injury, lower implements to the ground,
disengage all drives, engage parking brake, stop
engine, and remove key from ignition switch before
makinganyadjustmentsorperformingmaintenance.
Make sure the mower is parked on a solid and level
surface. Never work on a mower that is supported only
bythejack.Alwaysusejackstands.
If only the front or rear of the mower is raised, place
chocks in front of and behind the wheels that are not
raised.
!
CAUTION
Be careful to prevent entrapment of the hands and
fingers between moving and fixed components of the
machine.
!
INCORRECT CORRECT
Mustbeparallel
afterassembly
within1/4in.
(6mm)perfoot.
A

ADJUSTMENTS 4
en-15
4.4 BRAKE PEDAL____________________________________________________________
Adjust brakes after replacing or servicing brake assembly,
orifpedaltravelbecomesexcessive.
1. When installing new brake pads, burnish pads by
drivingmower atmowingspeed whileapplying aslight
pressureon brake pedal for about5seconds.Release
and repeat five times before making the final
adjustment.
2. Fullyloosenadjustingnut(C).
3. Byhand,pullcablebehindadjustingnut (B) awayfrom
pedal until brake pads just contact brake disk. Thread
adjustingnut(B)upuntilitcontactsthemountingplate.
Tighten nut (C) up to lock adjustment in place. Torque
nut (C) to 20 ft. lb. (27 Nm). Do not over torque or turn
cable.
4. Repeatforsecondcable.
5. Start mower and check operation of brakes. Park
moweronanincline(approx.16.7°slope)andengage
parkingbrake.Brakemustpreventmowerfromrolling.
Adjustnut(B) asrequired.
With parking brake engaged, and properly adjusted,
mowershouldnotbeabletodrivethroughbrakes.
Figure 4C
4.5 PARKING BRAKE SWITCH __________________________________________________
CheckparkingbrakeswitchadjustmentwheneverInterlock
System is not operating correctly. Switch contacts should
be closed with parking brake engaged and should open
whenparkingbrakeisdisengaged.
1. Loosenparkingbrakeswitchhardware(D).
2. Adjust switch (E) as required so switch contacts close
with the parking brake engaged, and open when
parkingbrakeisdisengaged.
Figure 4D
B
C
E
D

4 ADJUSTMENTS
en-16
4.6 CRUISE CONTROL SWITCH_________________________________________________
Ifthecruisecontroldoesnotdisengagewhenbrakepedalis
depressed,cruisecontrolswitchmustbeadjusted.
1. Loosenhardware(F).
2. Adjustswitch(G) socontactsareclosedwiththebrake
disengaged and open as soon as the brake pedal is
pressed.
3. Tightenhardwaretosecureswitchandrecheckswitch
operation.
Figure 4E
4.7 MOW SPEED _____________________________________________________________
Cutting quality is better at speeds well below the transport
speedof themower.An initial mow speedofsevento eight
mphissetatthefactoryandshouldbesatisfactoryformost
cutting conditions. Local turf conditions however may
respondbettertoadifferentspeed.
To set mow speed, loosen jam nut (R),and adjust stop
screwuptoreducespeed,downtoincreasespeed.Tighten
nuttoholdadjustmentinplace.
Figure 4F
4.8 WEIGHT TRANSFER _______________________________________________________
1. Adjusting weight transferknob affects lowering time of
the lift arms and also affects ground pressure at each
tire.
2. Loosen thin knob (J), and adjust large knob (K) to
increaseordecrease cuttingunitweight.Knobadjusts
allthreemowerssimultaneously.
a. Increasing cutting unit weight allows mowers to
follow contours of ground better and reduces
mowergroundpressure.
b. Decreasing cutting unit weight increases mower
weight,whichincreasestractiononslopes.
c. Oncedesiredgroundpressurehasbeenobtained,
tightenthinknob(J).
Figure 4G
F
G
H
NOTICE
Ifcuttingunitweightissettoolow,wingcuttingunitswill
notlowertothegroundfromtransportposition.
J
K
INCREASE DECREASE

ADJUSTMENTS 4
en-17
4.9 HYDRO NEUTRAL _________________________________________________________
Ifthemower“creeps”ineitherdirection,theNeutralposition
must be adjusted. The mower may tend to “creep” if the
hydraulic oil is cold. Operate mower for 15 minutes before
determiningifadjustmentisneeded.
1. Place a small amount of lubricating oil on all linkage
pivotpoints.
2. Hoist mower so all four tires are off the ground and
placejackstandsundertheframetopreventaccidental
loweringofthemowerduringadjustment.
3. Startengineandsetthrottletofullspeed.
4. Disengageparkingbrakeandplace2WD/4WDSwitch
in2WDposition.
5. Check rotation of drive tires and adjust traction return
control(L)withtheenginerunning.
a. Toadjustforforwardcreep,loosennut(M),andturn
nut (N) in until tires stop rotating. Hold nut (N) in
placeandtightennut(M).
b. To adjust for reverse creep, loosen nut (M),and
turnnut(N) outuntiltiresstoprotating.Holdnut(N)
inplaceandtightennut(M).
6. If mower continues to creep, check position of traction
returncontrol(L).
a. The return control (L) must be parallel to traction
arm(O).
b. Loosen hardware (P) and adjust bracket (Q) until
controlisparalleltoarm.
Figure 4H
4.10 REVERSE SENSING SWITCH ________________________________________________
1. Loosenswitchhardware(R).
2. Adjust switch (S) so switch contacts are open with
switch roller contacting the adjustment block (T) and
the traction pedal in Neutral and close when pedal is
movedintheforwarddirection.
3. Secureswitchadjustmentandtestoperation.
4. Ifadjustmentcannotbemade,contactyourauthorized
JacobsenDealer.
Figure 4I
WARNING
Carbon monoxide in the exhaust fumes can be fatal
when inhaled. Any adjustments or repairs performed
while the engine is running must be made with ample
ventilation.
Never work on a mower that is supported only by the
jack.Alwaysusejackstands.
If only the front or rear of the mower is raised, place
chocks in front of and behind the wheels that are not
raised.
!
M
N
O
P
Q
L
LMUST BE PARALLEL
R
S
T

4 ADJUSTMENTS
en-18
4.11 STEERING TOE IN _________________________________________________________
“Toein”shouldbeadjustedfromX+1/16in.(1.5mm).
1. Turnwheelstostraightaheadposition.
2. Loosentierodjamnuts(U).
3. Adjusttierodandretightenjamnuts.
4. Afteradjusting“Toein”itmaybenecessarytore-adjust
steeringstopbolts.
Figure 4J
4.12 TURNING RADIUS _________________________________________________________
1. Adjust steering cylinder (V) for equal angle steering in
both directions. Check that ball joints are threaded
equallyintobothends.
2. Loosen both nuts (Y) and turn bolts completely in
againstmountingblock.
3. Loosen screw and nut (W) on locking clamp. Turn
cylinder rod to obtain desired length then retighten
hardware.
4. Fully extend and retract steering cylinder and readjust
steeringstopbolts.
Figure 4K
4.13 STEERING STOP BOLTS ___________________________________________________
Do not adjust the stop bolts until the “Toe in” and steering
cylinderhavebeenadjusted.
1. Loosen both nuts (Y) and turn bolts completely in
againstmountingblock.
2. Fully retract steering cylinder. Adjust left side stop bolt
until it just touches steering arm. Tighten left side nut
(Y).
3. Fully extend steering cylinder. Adjust right side stop
boltuntilitjusttouchessteering arm.Tightenright side
nut(Y).
NOTE: Steering stop bolts must not limit the travel of the
steering cylinder rod stroke. Figure 4L
X
X + 1/16 in. (1.5 mm)
U
U
VW
W
Y
Y

ADJUSTMENTS 4
en-19
4.14 CUTTING HEIGHT _________________________________________________________
Level the front mower before setting the cutting height for
the first time. Do not remove the cutting units from the
mowertochangecuttingheight.
Cutting height for decks can be adjusted from 1 to 5-1/2 in.
(25-140 mm) in 1/2 in. (13 mm) increments. Actual cutting
height may vary somewhat from the heights given
depending on turf conditions, tire variances and other
factors.
1. Parkthemoweronaflat,levelsurface.Raisethedecks
untilthecasterwheelsareraisedoffthegroundenough
so caster wheels can be removed from deck. Place
blocksunderdeckssotheyaresupportedonallsides.
2. Figure 4M shows the height adjustment decal for the
casters.
Column1-HeightofCut
Column2-ArrangementofSpacers
Column3-ArmPosition
Column4-WingMowerMountingLocation
Column5-FrontMowerMountingLocation
3. Adjust spacers in quantity listed. Store extra spacers
on top of spindle. Always leave one thin spacer above
andbelowcasterarm.
4. For cutting heights 3 in. (76 mm) and below, caster
arms should be assembled to upper set of holes (A).
For cutting heights above 3 in. (76 mm), caster arms
shouldbeassembledtolowersetofholes(B).
Figure 4M
NOTICE
When cutting undulating areas, lower cutting heights
may cause scalping. Adjust height accordingly to
preventturfdamage.
WARNING
To prevent serious injury, lower deck until it is resting
completely on the supports. This will prevent it from
accidentally lowering while making adjustments.
Disengage all drives, engage parking brake, stop
engine,andremoveignitionkey.
!
NOTICE
Aftersettingcuttingheight,fullylowercuttingunitsontoa
flat, hard surface, stop engine, and measure the
distancefromthebladetipstotheground.Ifthedistance
is different from the desired cutting height, make
adjustments as necessary. Cut in a small test area and
makeanyfinaladjustmentsfordesiredturfappearance.
1.0
2.0
3.0
4.0
5.0
1.0
3.0
5.0
1.5
2.5
3.5
4.5
2.5
4.5
5.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
A
B
"X"
"X"
0
1
2
3
4
0
1
2
3
4
A
A
A
A
A
B
B
B
B
B

4 ADJUSTMENTS
en-20
4.15 LEVELING FRONT MOWER _________________________________________________
1. Before leveling the front deck, the mower tires, and
caster wheels must be properly inflated. The cutting
heightisdirectlyrelatedtotheradiusofthetire.
2. Set the cutting height of the front mower to 5-1/2 in.
(140mm).
3. Rotate all blades so that one end of the blade (A) is
pointingforward.
4. Fully lower front deck. Measure from the ground to
point (A) and from the ground to point (B). Point (B)
mustbe1/8in.(3mm)higherthanpoint(A).
5. Addorremoveshims(C) asrequiredbetweenbumper
pad(D)andliftarm(E).
6. Once the front mower has been properly leveled, the
cuttingheight maybe readjustedwithout changing the
shims.It maybe necessaryto re-levelthe deckif there
isachangetothetires.
Figure 4N
Figure 4O
4.16 SERVICING FRONT DECK __________________________________________________
Thefrontdeckcanberaisedandtilteduptoimproveaccess
to the cutting unit and blades for service and cleaning. Be
sure to disengage all drives, engage parking brake, stop
engine and remove ignition key before working around
deck.
To tilt front deck up to its service position:
1. Fullyraisefrontandrightwingdeck.Stopengine.
2. Removeheightofcutpinsfromfrontdeckandcarefully
liftdecktoaperpendicularposition.
3. Use height of cut pin on left front lift arm to pin deck in
serviceposition.
4. Start engine and lower front deck to the ground. Stop
engineandremoveignitionkey.
To return deck to service:
1. Start engine and fully raise front deck. Stop engine.
Removepinfromleftfrontliftarmandslowlylowerfront
deck.
2. Install height of cut pins in correct set of holes. Start
engineandlowerfrontdeck.
A
A
A
B
B
B
C
D
E