Jacobsen 62306 Maintenance Manual

Avertissement : Risque de blessures graves en cas

d’utilisation incorrecte de la machine. Les opérateurs et

le personnel d’entretien doivent être formés et conscients

des dangers encourus. Ils doivent lire avec attention le

manuel avant d’essayer de monter, d’utiliser, de régler

ou maintenir la machine.

When Performance Matters.

™

WARNING

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 must read the entire

manual before attempting to set up, operate,

adjust, or service the machine.

AVERTISSEMENT

FR

Safety, Operation, & Maintenance Manual

Manuel de sécurité, de fonctionnement et de maintenance

Greens King™ IV Plus with ROPS

Greens King™ IV Plus avec structure de

protection anti-retournement (ROPS)

62306 – 18 HP Briggs & Stratton® Vanguard™ Engine

62306 – Moteur Briggs & Stratton® Vanguard™ de 18 CV

Series: CAJ

4187123-F-FR

2

This manual contains safety and operating instructions

for your new Jacobsen machine. This manual should be

stored with the equipment for reference during operation.

Before you operate your machine, you and each operator

you employ should read the manual carefully in its

entirety. By following the safety, operating, and

maintenance instructions, you will prolong the life of your

equipment, and maintain its maximum efficiency.

If additional information is needed, contact your

Jacobsen Dealer.

The serial plate is attached to the frame near the battery.

Jacobsen recommends you record these numbers below

for easy reference.

FOREWORD

Proposition 65 Warning

This product contains or emits

chemicals known to the State of

California to cause cancer and birth

defects or other reproductive harm.

reserved, including the right to reproduce this material or portions

thereof in any form.”

Litho In U.S.A. 9-2014

CONTENTS 1

3

1 CONTENTS

1CONTENTS

2SAFETY

2.1 Important Safety Notes ........................................ 7

3 SPECIFICATIONS

3.1 Product Identification ........................................... 8

3.2 Engine .................................................................. 8

3.3 Cutting Units: ....................................................... 8

3.4 Mower .................................................................. 9

3.5 Weights And Dimensions ..................................... 9

3.6 Accessories And Support Literature .................... 9

4 DECALS

4.1 Decals................................................................ 10

5 CONTROLS

5.1 Icons .................................................................. 14

5.2 Control Descriptions .......................................... 16

6 OPERATION

6.1 Daily Inspection ................................................. 17

6.2 Interlock System ................................................ 17

6.3 Operating Procedures........................................ 18

6.4 Starting .............................................................. 19

6.5 Stopping / Parking ............................................. 19

6.6 To Drive / Transport ........................................... 20

6.7 Hillside Operation .............................................. 20

6.8 Mowing .............................................................. 22

6.9 Towing / Trailering ............................................. 23

6.10 Daily Maintenance ............................................. 24

7 MAINTENANCE AND LUBRICATION CHARTS

7.1 General .............................................................. 25

7.2 Lubrication Chart ............................................... 25

7.3 Maintenance Charts ........................................... 26

8 MAINTENANCE

8.1 General .............................................................. 27

8.2 Engine ................................................................ 27

8.3 Engine Oil .......................................................... 28

8.4 Air Filter ............................................................. 28

8.5 Fuel .................................................................... 29

8.6 Fuel System ....................................................... 29

8.7 Battery ............................................................... 30

8.8 Jump Starting ..................................................... 30

8.9 Charging Battery ................................................ 30

8.10 Hydraulic Hoses ................................................. 31

8.11 Hydraulic fluid .................................................... 31

8.12 Hydraulic FLUID Filters ...................................... 32

8.13 Electrical System ............................................... 32

8.14 Muffler And Exhaust .......................................... 32

8.15 Tires ................................................................... 32

8.16 Wheel Mounting Procedure ............................... 33

8.17 Roll Over Protective Structure (ROPS) .............. 33

8.18 Care And Cleaning ............................................ 33

8.19 Backlapping ....................................................... 34

8.20 Storage .............................................................. 35

9 ADJUSTMENTS

9.1 General .............................................................. 36

9.2 Bedknife-To-Reel ............................................... 36

9.3 Bedknife Adjustment .......................................... 37

9.4 Cutting Height .................................................... 37

9.5 Bedknife Adjuster Spring ................................... 38

9.6 Bedknife Adjuster Tension ................................. 38

9.7 Reel Bearing ...................................................... 38

9.8 Lift Cylinders ...................................................... 39

9.9 Antisway Spring ................................................. 39

9.10 Leveling Procedure ............................................ 40

9.11 Accelerator Pedal .............................................. 40

9.12 Brake Pedal ....................................................... 40

9.13 Parking Brake .................................................... 41

9.14 Interlock Switches .............................................. 41

9.15 Reel Switches .................................................... 41

9.16 Traction Lever .................................................... 42

9.17 Reel Control ....................................................... 42

9.18 Steering Cable (GK IV Units only) ..................... 42

9.19 Choke Control .................................................... 43

9.20 Specific Torque Requirements .......................... 43

9.21 Torque Specification .......................................... 44

10 TROUBLESHOOTING

10.1 General .............................................................. 45

11 QUALITY OF CUT

11.1 Quality of Cut Troubleshooting .......................... 46

11.2 Washboarding .................................................... 46

11.3 Marcelling .......................................................... 47

11.4 Step Cutting ....................................................... 48

11.5 Scalping ............................................................. 49

11.6 Stragglers .......................................................... 50

11.7 Streaks............................................................... 51

11.8 Windrowing ........................................................ 52

11.9 Rifling Or Tramlining .......................................... 53

11.10 Mismatched Cutting Units .................................. 53

2 SAFETY

4

2 SAFETY

2.1 HOW TO OPERATE SAFELY

SAFE OPERATION

a Read the Operator’s Manual and other training

material. If the operator or technician can not read

this manual, the owner is responsible to describe

this material to the operators and technicians.

Manuals in additional languages may be available

on the Jacobsen or RansomesJacobsen website.

a Read all of the instructions for this mower carefully.

Know the controls and the correct operation of the

equipment.

b Children or persons who do not understand these

instructions must not use the mower. The local

regulations can limit the age of the operator.

c Never use a mower near persons, including

children or animals.

d Remember that the operator or owner is

responsible for accidents or hazards that occur to

other persons or their property.

e Never carry passengers.

f Never allow persons to operate or service the

mower or its attachments without correct

instructions.

g Do not operate equipment while tired, sick or after

you use alcohol or drugs.

PREPARATION

a When you operate the mower, wear correct

clothing, slip resistant work shoes or boots, work

gloves, hard hat, safety glasses and hearing

protection. Long hair, loose clothing or jewelry can

be caught in moving parts.

b Do not operate the equipment with the Interlock

System disconnected or the system does not

operate correctly. Do not disconnect or prevent the

operation of any switch.

c Never operate equipment that is not in correct

order or without decals, guards, shields, deflectors

or other protective devices fastened.

d Inspect the mower before you operate the mower.

Check the tire pressure, engine oil level, the

radiator coolant level and the air cleaner indicator.

Fuel is flammable. Use caution when you add the

fuel to the mower.

e Operate the mower in daylight or in good artificial

light. Use caution when you operate the mower

during bad weather. Never operate the mower with

lightning in the area.

f Inspect the area to select the accessories and

attachments that are needed to correctly and safely

do the job. Only use parts, accessories and

attachments approved by Jacobsen.

g Be careful of holes in the terrain and other hazards

that are not visible.

h Inspect the area where the equipment is operated.

Remove all objects you can find before you

operate. Be careful of obstructions above the

ground (low tree limbs, electrical wires) and also

underground obstacles (sprinklers, pipes, tree

roots). Enter a new area carefully. Look for possible

hazards.

i Inspect the cutting system before you start the

mower. Make sure the blades are free to rotate.

When you rotate one blade, other blades can

rotate.

OPERATION

a Never operate the engine without enough

ventilation or in an enclosed area. The carbon

monoxide in the exhaust fumes can increase to

dangerous levels.

b Never carry passengers. Keep other persons or

animals away from the mower.

c Disengage all drives and engage the parking brake

before you start the engine. Only start the engine

with the operator in the seat. Never start the engine

with persons near the mower.

d Keep your legs, arms and body inside the operator

compartment while the mower is in operation. Keep

your hands and feet away from the cutting units.

WARNING

EQUIPMENT OPERATED INCORRECTLY OR WITHOUT TRAINING CAN BE DANGEROUS.

Know the location and correct operation of controls. Operators without experience must receive instruction from

another person that knows the correct operation of the equipment before you operate the mower.

Only use parts, accessories and attachments approved by Jacobsen.

!

SAFETY 2

5

e Do not use on the slopes greater than the safe

slope limit for the equipment.

f To guard against over turning or loss of control:

– Operate the mower up and down on the face of

slopes (vertically), but not across the face

(horizontally).

–Do not start or stop suddenly on slopes.

– Decrease the speed when you operate on slopes

or when you must turn. Use caution when you

change direction. Turf condition can change the

mower stability.

– Use caution when you operate the mower near

drop-offs, ditches or embankments.

– Be careful of holes in the terrain and other hazards

that are not visible.

g When you drive in the reverse direction, look

behind you and down to make sure the path is

clear. Do not operate the cutting units when you

drive in the reverse direction.

h Use caution when you go near corners, trees or

other objects that can prevent a clear view.

i Equipment must meet the current regulations to be

driven on the public roads.

j Before you move across or operate on the paths or

roads, turn off the PTO switch, lift the mowers and

travel at decreased speed. Look for traffic.

k Stop the blades when the mower is on any surface

that is not grass.

l Do not release the cut grass in the direction of

persons or allow persons near the mower while in

operation.

m Do not operate the mower with damaged guards or

without safety devices in position.

n Do not change the engine governor setting or over-

speed the engine. Never change or tamper with

adjusters that are closed with a seal for the engine

speed control.

o Before you leave the operator compartment, for

any reason:

– Disengage all the drives and lower attachments to

the ground.

–Engage the parking brake.

–Stop the engine and remove the key.

p When you hit an object or mower starts to cause

the vibration that is not normal, inspect the mower

for damage and make repairs.

q Decrease the throttle setting before you stop the

engine.

r Do not use this equipment for uses that the mower

was not made for.

ROPS

a The ROPS is a safety device. Keep the ROPS in

the vertical and locked position. Always use the

seat belt when you operate the mower. Make sure

the seat belt can be released quickly in an

emergency.

b Only operate the mower with the ROPS in the

folded position on flat and level surfaces when

necessary. Do not operate the mower with the

ROPS in the folded position on slopes, near sharp

edges or near water. There is no roll over

protection with the ROPS in the folded position.

c Check for clearance before you drive below

objects. Do not contact tree branches, electrical

wires or other objects with the ROPS.

d Do not use the seat belt with the ROPS in the

folded position.

e Inspect the ROPS for damage. Keep the ROPS

hardware fastened.

f Do not weld, drill, change or bend the ROPS.

Replace a damaged ROPS. Do not try to correct a

damaged ROPS.

g Do not remove the ROPS from the mower.

h Jacobsen must approve any changes to the ROPS.

SAFE HANDLING OF FUELS

a The fuel and the fuel vapors are flammable. Use

caution when you add the fuel to the mower. The

fuel vapors can cause an explosion.

b Never use the containers that are not approved to

keep or transfer fuel.

c Never keep the mower or fuel containers near an

open flame or any device that can cause the

ignition of fuel or fuel vapors.

d Never fill the fuel containers inside a vehicle or on a

truck or trailer with a plastic liner. Always put the

fuel container on the ground away from your

vehicle before you fill the container.

e Refuel the mower before you start the engine.

When the engine is in operation or while the engine

is hot, never remove the fuel cap or add fuel to the

mower.

f Refuel outdoors only and do not smoke when you

add fuel. Extinguish all types of ignition.

2 SAFETY

6

g The fuel nozzle must touch the rim of the fuel tank

when you add fuel to the mower. Do not use a

device to lock the fuel nozzle in the open position.

h Do not over fill the fuel tank. Leave at least 1 inch

(25 mm) below the filler neck.

i Always tighten the fuel tank cap and container cap

after you add fuel.

j If the fuel spills on your clothing, change your

clothing immediately.

MAINTENANCE AND STORAGE

a Before you clean, adjust or repair this equipment,

push PTO switch to the OFF position, lower the

cutting unit to the ground, engage the parking

brake, stop the engine and remove the key.

b Make sure the mower is parked on a solid and level

surface.

c Never work on a mower that is lifted only by the

jack. Always use the jack stands.

d Never allow persons to service the mower or its

attachments without correct instructions.

e When the mower is parked, put into storage or left

without an operator, lower the cutting device unless

a positive mechanical lock is used.

f When you put the mower on a trailer or put the

mower in storage, close the fuel valve. Do not keep

fuel near flames or drain the fuel inside a building.

g Disconnect the battery before you service the

mower. Always disconnect the negative battery

cable before the positive battery cable. Always

connect the positive battery cable before the

negative battery cable.

h Charge the battery in an area with good airflow.

The battery can release hydrogen gas that is

explosive. To prevent an explosion, keep any

device that can cause sparks or flames away from

the battery.

i Disconnect the battery charger from the power

supply before you connect or disconnect the

battery charger to the battery. Wear protective

clothing and use insulated tools when you service

the battery.

j Be careful and wear gloves when you check or

service the cutting unit blades. Replace any

damaged blades, do not try to correct a damaged

blade.

k Keep your hands and feet away from parts that

move. Do not adjust the mower with the engine in

operation, unless the adjustment needs the engine

in operation.

l Carefully release the pressure from components

with stored energy.

m To prevent injury from the hot, high pressure oil,

never use your hands to check for oil leaks. Use

the paper or cardboard to find leaks.

n The hydraulic fluid pressure can have enough force

to enter your skin. If hydraulic fluid has entered

your skin, a doctor must remove the hydraulic fluid

surgically within a few hours or gangrene can

occur.

oWhen you service the hydraulic system, make sure

the hydraulic fittings, tubes and hoses are

tightened to the correct torque. Make sure the

hydraulic system is in good condition before you

start the engine.

p Keep the mower and the engine clean.

q Allow the engine to become cool before storage

and always remove the ignition key.

r Keep all nuts, bolts and screws tight to make sure

the equipment is in safe condition.

s Replace worn or damaged parts for safety.

Replace damaged or worn decals. Only use parts,

accessories and attachments approved by

Jacobsen.

t To decrease the fire hazard, remove materials that

burn from the engine, muffler, battery tray and fuel

tank area.

u Disconnect the battery and controller connectors

before you weld on this mower.

WHEN YOU PUT THE MOWER ON A

TRAILER

a Be careful when you load or unload the mower on

a trailer. Trailer must be wider than the mower and

can carry the weight of the mower.

b Use a full-width ramp to load or unload the mower

on a trailer.

c Use straps, chains, cables or ropes to fasten the

mower to the trailer. Both front and rear straps

must be sent down and toward sides of trailer.

d Make sure that all latches are correctly fastened.

SAFETY 2

7

2.2 IMPORTANT SAFETY NOTES ________________________________________________

This safety alert symbol is used to alert you to potential hazards.

DANGER - Indicates an imminently hazardous situation which, if not avoided, WILL result in death or serious injury.

WARNING - Indicates a potentially hazardous situation which, if not avoided, COULD result in death or serious

injury.

CAUTION - Indicates a potentially hazardous situation which, if not avoided, MAY result in minor or moderate injury

and property damage. It may also be used to alert against unsafe practices.

NOTICE - Indicates a potentially hazardous situation which, if not avoided, MAY result in property damage. It may

also be used to alert against unsafe practices.

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. Adjustments and maintenance should always be performed by a qualified technician.

If additional information or service is needed, contact your authorized Jacobsen Dealer who is kept informed of the

latest methods to service this equipment and can provide prompt and efficient service.

WARNING

The Interlock System on this mower prevents the mower from starting unless

the parking brake is engaged, reel levers are off, and traction lever is in

Neutral. The system will stop the engine if the operator leaves the seat

without engaging the parking brake, setting the reel levers to off, and placing

traction lever in Neutral.

NEVER operate mower unless the Interlock System is working.

!

WARNING

1. Before leaving the operator’s position for any reason:

a. Return traction lever to Neutral.

b. Disengage all drives.

c. Lower all implements to the ground.

d. Engage parking brake.

e. Stop engine and remove the ignition key.

2. Keep hands, feet, and clothing away from moving parts. Wait for all

movement to stop before you clean, adjust, or service the machine.

3. Keep the area of operation clear of all bystanders and pets.

4. Never carry passengers.

!

3 SPECIFICATIONS

8

3 SPECIFICATION S

3.1 PRODUCT IDENTIFICATION _________________________________________________

62306.............................. Greens King IV, 50 state, 18 hp

gasoline engine, power steering.

Without mowers.

Serial Number ................ An identification plate, like the one

shown, listing the serial number

(J), is attached to the frame of the

mower near the battery.

Always provide the serial number of the unit when ordering

replacement parts or requesting service information.

3.2 ENGINE__________________________________________________________________

Make .................................... Briggs & Stratton

Model ................................... Vanguard V-Twin OHV

Horsepower (GK IV)............. 16 hp (12 kW) @ 3600 RPM

Horsepower (GK IV Plus)..... 18 hp (13.5 kW) @ 3600 RPM

Displacement ....................... 29.3 cu. in. (480 cc)

Torque .................................. 26 ft. lbs. (35 Nm) @ 2600RPM

Fuel:

Type ............................... Unleaded Gasoline

Rating ............................ Min. 85 Octane

Capacity......................... 5 U.S. gal. (18.9 liters)

Governor...............................Flyweight Mechanical

Lubrication:

Capacity..........................3.5 pints (1.4 liters)

Type ................................SAE 30W

API Classification ...........SF, SG, SH

Air Filter ................................Replaceable Dual Element.

Alternator ..............................16 amp

Cooling System ....................Air Cooled

3.3 CUTTING UNITS: __________________________________________________________

Reel ................................ 3 Reels, 22 in. (559 mm) wide.

Reel Diameter................. 5 in. (127 mm)

Blade Options ................. 7, 9 or 11 blades

Cutting Width .................. 62 in. (1574 mm)

Cutting Frequency:

7 Blade ..................... 0.084 in./mph (1.33 mm/kph)

9 Blade ..................... 0.065 in./mph (1.03 mm/kph)

11 Blade ................... 0.053 in./mph (0.84 mm/kph)

NOTICE

Do not use premium gasoline or an oil-gasoline

mixture. When using blended fuel, do not use a blend

with more than 10% ethanol. Under no circumstances

should you use a blend with methanol.

SPECIFICATIONS 3

9

3.4 MOWER__________________________________________________________________

Tires ................................18 x 9.5 - 8 tubeless 4 Ply

Pressure:.........................8-12 psi (55-83 kPa)

Battery:

Type ..........................12 Volt Lead/Acid

Group ........................22 GMF

Parking Brake..................Mechanical front drum brakes

Hand lever actuated

Speed:

Mow .........................0 - 3.7 mph (5.9 kph)

Transport .................. 0 - 6.6 mph (10.6 kph)

Reverse..................... 0 - 3.5 mph (5.6 kph)

Hydraulic System:

Capacity.......................... 5 U.S. gal. (19 liters) System

Fluid Type ....................... GreensCare™ 46 Biodegradable

Filter................................ Full flow 20 micron

Steering ......................... Hydrostatic power steering

Mower Lift ....................... Hydraulic double acting cylinders

3.5 WEIGHTS AND DIMENSIONS ________________________________________________

Dimensions: Inches (mm)

Length - Grass Catchers On ........................ 99.5 (2526)

Height - Top of ROPS...................................... 78 (1981)

Wheel Base.................................................. 52.8 (1341)

Width - Transport Position ............................... 68 (1727)

Width - Mowing Position.................................. 70 (1778)

Width - Wheel .............................................. 50.5 (1283)

Turning Radius ................................................ 18 (457)

Weights: Lbs. (kg)

Hydraulic and Fuel Tanks Full Less Operator

62302 and 62305 ........................................ 1234 (560)

62303 and 62306 ........................................ 1239 (562)

Hydraulic Tank Full and Fuel Tank Empty Less Operator

62302 and 62305 ........................................ 1203 (546)

62303 and 62306 ........................................ 1208 (548)

3.6 ACCESSORIES AND SUPPORT LITERATURE __________________________________

Contact your area Jacobsen Dealer for a complete listing of accessories and attachments.

Accessories

Orange Touch-up Paint (12 oz. spray) ...................... 554598

Arm Rest ................................................................. 4139431

Grass Catcher............................................................. 67891

Brush, 62” ................................................................... 68623

Fine Bristle Brush........................................................ 68536

Green Sentry II Oil System Monitor ............................ 68669

Light Kit ................................................................... 2811910

Motor / Light / Brush Mounting Kit........................... 2811909

Rear Roller Cleaner .................................................... 68643

Quick Roller (Set of 3)................................................. 68664

Spiker (Set of 3) .......................................................... 68665

Traction Tire (Set of 2)................................................. 62616

Turf Groomer 1/4” Spacing R.H. (2 Required)............. 67911

Turf Groomer 1/4” Spacing L.H. (1 Required) ............. 67912

Turf Groomer 1/2” Spacing R.H. (2 Required)............. 67913

Turf Groomer 1/2” Spacing L.H. (1 Required) ............. 67914

Vertical Mower L.H. (1 Required)................................ 68549

Vertical Mower R.H. (2 Required) ............................... 68550

Variable Step Cut ........................................................ 68551

High Cut Roller Kit ...................................................... 68634

MAGSystem™ Kit ................................................... 4158083

Reels

7 Blade Reel L.H. (1 Required)....................................68588

7 Blade Reel R.H. (2 Required) ...................................68589

9 Blade Reel L.H. (1 Required)....................................68599

9 Blade Reel R.H. (2 Required) ...................................68600

11 Blade Reel L.H. (1 Required)..................................68621

11 Blade Reel R.H. (2 Required) .................................68622

Rollers

Grooved Front Roller ...................................................68527

Solid Roller .................................................................68530

Segmented Front Roller...............................................68673

Grooved Front Roller (Steel)........................................68613

Grooved Front Roller (Aluminum) ................................68614

Grooved Rear Roller....................................................68580

Support Literature

Safety & Operation Manual......................................4187123

Parts & Maintenance Manual...................................4279831

Operator Training DVD.............................................4191631

Service & Repair Manual.........................................4171649

CAUTION

Use of other than Jacobsen authorized parts and accessories may cause personal injury or damage to the

equipment.

!

4 DECALS

10

4 DECALS

4.1 DECALS _________________________________________________________________

Familiarize yourself with the following decals. They are critical to the safe operation of the

machine. REPLACE DAMAGED DECALS IMMEDIATELY.

4181864

4181863

Danger

To avoid injury when working with battery:

1. Always connect the black (-) ground last and remove it

first.

2. Keep sparks and flames away, and avoid contact with

acid.

To avoid injury when jumping battery:

1. Connect positive (+) terminal to positive (+) terminal.

2. Connect negative (-) terminal on good battery to frame

of vehicle that has dead battery.

WARNING

Read Parts & Maintenance Manual

for service. Torsion spring under

extreme tension. Clamp may turn

suddenly. To avoid injury, unwind

spring by tapping on clamp while

loosening nut.

DECALS 4

11

Familiarize yourself with the following decals. They are critical to the safe operation of the

machine. REPLACE DAMAGED DECALS IMMEDIATELY.

4205183

IMPO R T AN T

2811912

This machine uses GreensCare 46,

a biodegradable hydraulic fluid.

(Order 5003105 for 5 gal. pail)

Use of ATF Dextron II or III

is an approved alternate fluid.

Use will compromise all

biodegradable properties of

GreensCare 46 hydraulic fluid.

3002308

WARNING

Do not use for towing.

Fuel

4 DECALS

12

Familiarize yourself with the following decals. They are critical to the safe operation of the

machine. REPLACE DAMAGED DECALS IMMEDIATELY.

A

B

CD

2812066

8-12 p.s.i.

(55-83 kPa)

4141266

3002051

Brake

Reel Switches Wiring

Tire Pressure

Engine Oil

Pressure

Backlap Switch

Ignition Switch

Start

RUN

OFF

Backlap

Operation

Normal

Operation

Engine

Throttle

Slow

Fast

DECALS 4

13

Familiarize yourself with the following decals. They are critical to the safe operation of the

machine. REPLACE DAMAGED DECALS IMMEDIATELY.

2

1

N

R

Right ReelCenter ReelLeft Reel

Reel Forward

Rotation

Reel Off

Reel Reverse

Rotation

Parking Brake

Disengaged

Transport

Mow

Neutral

Reverse

Traction Lever

Parking Brake

Engaged

Charging

System Fuse

Interlock

System Fuse

5 CONTROLS

14

5 CONTROLS

5.1 ICONS ___________________________________________________________________

WARNING

Never attempt to drive the mower unless you have read the Safety and Operation Manual

and know how to operate all controls correctly.

Familiarize yourself with the icons shown above and what they represent. Learn the

location and purpose of all of the controls and gauges before operating this mower.

Read Manual

Off Run Start

Engine

Fast Slow

Engine Throttle

Forward Reverse

Reel Rotation Fuse

Choke

Headlight

Engaged Disengaged

Parking Brake

Service Foot Brake

Hour Meter

Traction Lever

Transport

Mow

Neutral

Reverse

2

1

N

R

Fuel

!

CONTROLS 5

15

2

1

N

R

!WARNING

Never mow in transport.

If lever is in transport

mode, forward motion will

suddenly increase when mowers

are raised or sut off

Do not use this machine on

slopes greater than 12.5° .

!WARNING

1. Read operators manual. Do not allow untrained operators to

use this machine.

2. Keep all shields in place and hardware securely tightened.

3. Before you clean, adjust or repair this equipment,

disengage all drives, engage parking brake and stop engine.

4. Keep hands, feet and clothing away from moving par ts.

5. Never carry passengers.

6. Keep bystanders away

10 12 14 16

N

P

R

S

T

U

V

W

AB

C

D

E

FGH

J

K

L

M

X

Reels turn when reel levers are in backlap position. Read operator's manual before backlapping.

!WARNING

AReel Control Levers

BParking Brake Lever

CTraction Lever

DVolt Meter

EIgnition Switch

FMechanics (Backlap) Switch

GLight Switch (Optional)

HFuse, Lights (Optional)

JFuse, Charging Circuit

KFuse, Interlock System

LParking Brake Light

MEngine Oil Pressure Light

NThrottle

PChoke

RAccelerator Pedal

SBrake Pedal

TMow/Lift Pedal

UHour Meter

VSeat Control Lever

WHydraulic Cap/Dipstick

XFuel Cap

5 CONTROLS

16

5.2 CONTROL DESCRIPTIONS__________________________________________________

A. Reel Control Levers - Used to operate the cutting

units. Push lever(s) forward for forward rotation. Pull

lever(s) back for Reverse rotation. All three levers

must be in OFF position to start engine.

B. Parking Brake Lever - Pull lever back to engage

and push lever forward to disengage parking brake.

Always disengage parking brake slowly. Parking

brake must be engaged to start engine.

C. Traction Lever - Four Positions: Transport (2), Mow

(1), Neutral (N) and Reverse (R). Traction lever must

be in Neutral position to start engine.

D. Volt Meter - Used to monitor battery condition.

During normal operation, volt meter needle should

never be in the red area.

E. Ignition Switch - Used to start the engine. To

prevent unauthorized operation, remove the ignition

key when mower is not in use.

F. Mechanic’s (Backlap) Switch - Used to switch the

mower to backlap mode to hone or sharpen the

reel.

G. Light Switch (Optional) - Used to control operation

of optional light kit.

H. Fuse, Lights - 20 Amp fuse, protecting light circuit.

J. Fuse, Charging Circuit - 20 Amp fuse, protecting

charging circuit.

K. Fuse, Interlock System - 6 Amp fuse, protecting

Interlock System.

L. Parking Brake Light is always on when parking

brake is engaged. Do not move traction lever out of

Neutral, or press accelerator pedal when light is on.

M. Engine Oil Pressure Light - Indicator will light if

engine oil pressure drops below a safe level. Stop

engine immediately, determine the cause, and

correct problem before restarting engine.

N. Throttle - Regulates Engine Speed. Push Lever

forward to increase or pull lever back to decrease

engine speed.

P. Choke - Pull the choke control knob upwards to

close the choke plate when starting a cold engine. A

warm engine may not require “Choking” to start.

R. Accelerator Pedal - Used to control speed of the

mower. Do not depress pedal if parking brake light

(L) is on.

Remove foot from pedal, the accelerator pedal will

return to neutral, and the machine will stop. The self

braking action is in forward direction only.

S. Brake Pedal - Used to stop mower when traveling

in Reverse. Remove foot from accelerator and

depress brake pedal.

T. Mow/Lift Pedal - Used to lift or lower the cutting

units. Depress and hold front of pedal to lower

cutting units, or depress and hold rear of pedal to

raise cutting units.

U. Hour Meter - Used to time maintenance intervals or

mowing operations. The meter operates only when

ignition key is in RUN position.

V. Seat Control Lever - Used to adjust position of

seat. Pull lever forward and adjust seat to

comfortable position, then release lever.

W. Hydraulic Cap/Dipstick - Used to check level of

hydraulic fluid in tank. Level should always be at Full

mark on dipstick.

X. Fuel Cap - Remove cap to add fuel, or check fuel

level in tank. Always replace cap tightly.

WARNING

Reels will rotate in the raised position with reel control

lever(s) set for reverse rotation. Keep hands and feet

away from the reels to prevent serious injury.

DANGER

Reels will turn with mechanics key in backlap position

without an operator on the seat. Keep hands and feet

away from the reels to prevent serious injury.

!

NOTICE

When operating the mow/lift pedal, keep the pedal

depressed until the cutting units have been fully

lowered or raised, then release the pedal.

OPERATION 6

17

6 OPERATION

6.1 DAILY INSPECTION ________________________________________________________

1. Perform a visual inspection of the entire unit, look for

signs of wear, loose hardware, and missing or

damaged components. Check for fuel or oil leaks to

ensure connections are tight and hoses and tubes

are in good condition.

2. Check the fuel supply, radiator coolant level,

crankcase oil, and air cleaner indicator. All fluids

must be at the Full level mark with engine cold.

3. Make sure all mowers are adjusted to the same

cutting height.

4. Check tires for proper inflation.

5. Test the Interlock system.

Note: For more detailed maintenance information,

adjustments and maintenance/lube charts, see the

Parts & Maintenance manual.

6.2 INTERLOCK SYSTEM ______________________________________________________

1. The Interlock system prevents the engine from

starting unless the parking brake is engaged, the

traction lever is in Neutral and the reel levers are off.

The system also stops the engine if the operator

leaves the seat with the reel levers on, traction lever

out of Neutral, or parking brake disengaged.

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 the tests fail as listed below:

the engine does not start in test 1;

the engine does start during tests 2, 3 or 4;

the engine continues to run during tests 5 or 6.

3. Refer to the chart below for each test and follow the

check () marks across the chart. Shut engine off

between each test.

Test 1: Represents normal starting procedure. The

operator is seated, parking brake is engaged, the

traction lever is in Neutral, and the reel levers are off.

The engine should start.

Test 2: The engine must not start if the reel lever is in

Forward or Reverse. Repeat test for each reel lever

and lever position.

Test 3: The engine must not start if the parking brake

is disengaged.

Test 4: The engine must not start if traction lever is

not in Neutral. Repeat test for each position of lever.

Test 5: Start the engine in the normal manner then

turn reel lever on and lift your weight off the seat.

Repeat test for each reel lever and lever position. 

Test 6: Start the engine in the normal manner then

disengage parking brake and lift your weight off the

seat. 

Test 7: Start the engine in the normal manner then

shift traction lever out of Neutral and lift your weight

off the seat. Repeat test for each lever position. 

Lift your weight off seat. The engine will shut down.

CAUTION

The daily inspection should be performed only when

the engine is off and all fluids are cold. Lower mowers

to the ground, engage the parking brake, stop engine,

and remove ignition key.

!

WARNING

Never operate equipment with the Interlock

system disconnected or malfunctioning. Do not

disconnect or bypass any switch.

!

Test Operator

Seated

Parking

Brake

Traction Lever

in Neutral

Reel

Levers

Engine

Starts

Yes No Engaged Disengaged Yes No On Off Yes No

1  

2  

3

4  

5



6 



7



6 OPERATION

18

6.3 OPERATING PROCEDURES ______________________________________________________

1. Under no circumstances should the engine be

started without the operator seated on the mower.

2. Do not operate mower or attachments with loose,

damaged, or missing components. Whenever

possible mow when grass is dry.

3. First mow in a test area to become thoroughly

familiar with the operation of the mower and control

levers.

4. Study the area to determine the best and safest

operating procedure. Consider the height of the

grass, type of terrain, and condition of the surface.

Each condition will require certain adjustments or

precautions. Only use accessories and attachments

approved by Jacobsen.

5. Never direct discharge of material toward

bystanders, nor allow anyone near the machine

while in operation. The owner/operator is

responsible for injuries inflicted to bystanders and/or

damage to their property.

6. Use discretion when mowing near gravel areas

(roadway, parking areas, cart paths, etc.). Stones

discharged from the implement may cause serious

injuries to bystanders and/or damage the

equipment.

7. Always move reel levers to Off position to stop

blades when not mowing.

8. Move reel levers to Off position and raise the reels

when crossing paths or roadways. Look out for

traffic.

9. Stop and inspect the equipment for damage

immediately after striking an obstruction or if the

machine begins to vibrate abnormally. Have the

equipment repaired before resuming operation.

10. Slow down and use extra care on hillsides. Read

Section 6.7. Use caution when operating near drop

offs.

11. Look behind and down before backing up to be sure

the path is clear. Use care when approaching blind

corners, shrubs, trees, or other objects that may

obscure vision.

12. 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.

WARNING

A Roll Over Protection Structure (ROPS) is included with this mower. Seat belts must be worn whenever operating

a mower with a ROPS. Always keep seat belt snugly adjusted. DO NOT use seat belts on a mower without a ROPS.

If the mower is overturning, hold onto the steering wheel. Do not attempt to jump out or leave the seat.

!

CAUTION

To help prevent injury, always wear safety glasses, leather work shoes or boots, a hard hat, and ear protection.

!

NOTICE

To prevent damage to the reel and bedknife never

operate the reels when they are not cutting grass.

Excessive friction and heat will develop between the

bedknife and reel and damage the cutting edge.

CAUTION

Before mowing, pick up all debris such as rocks, toys,

and wire which can be thrown by the machine. Enter a

new area cautiously. Always operate at speeds that

allow you to have complete control of the mower.

!

WARNING

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.

!

OPERATION 6

19

6.4 STARTING________________________________________________________________

1. Make sure fuel shut off valve is completely open and

the tow valve is closed.

2. Sit in operator’s seat, make sure the reel control

levers (A) are off, parking brake lever (B) is

engaged and traction lever (C) is in Neutral.

3. Move throttle (N) between 1/8 to 1/2 throttle. Turn

ignition switch (E) to RUN.

4. Pull choke lever (P) to fully close choke plate.

5. Turn Ignition switch (E) to START position and

release as soon as engine starts. Do not hold the

key in the start position for more than 15 seconds.

6. Slowly push choke lever in to open choke plate.

7. Allow the engine to become warm and properly

lubricated before operating at high RPM.

Figure 6A

6.5 STOPPING / PARKING ______________________________________________________

To stop:

Remove your foot from accelerator pedal. The mower will

automatically brake when the accelerator pedal returns to

neutral. Always engage the parking brake before leaving

your machine.

To park the mower under normal conditions:

1. Disengage the reel control levers, raise the

implements, and move away from the area of

operation.

2. Select a flat and level area to park.

a. Release accelerator pedal to bring the mower to

a complete stop.

b. Disengage all drives, lower implements to the

ground, reduce throttle to slow, and allow engine

to operate at no load for a minute.

3. Engage parking brake, stop the engine, and always

remove the ignition key.

If an emergency arises and the mower must be parked in

the area of operation, follow the guidelines outlined by

the grounds superintendent. If the mower is parked on an

incline, chock or block the wheels.

C

2

1

N

R

!WARNING

Never mow in transport.

If lever is in transport

mode, forward motion will

suddenly increase when mowers

are raised or sut off

Do not use this machine on

slopes greater than 12.5° .

!WARNING

1. Read operators manual. Do not allow untrained operators to

use this machine.

2. Keep all shields in place and hardware securely tightened.

3. Before you clean, adjust or repair this equipment,

disengage all drives, engage parking brake and stop engine.

4. Keep hands, feet and clothing away from moving par ts.

5. Never carry passengers.

6. Keep bystanders away

10 12 14 16

AB

E

Reels turn when reel levers are in backlap position. Read operator's manual before backlapping.

!

WARNING

N

P

6 OPERATION

20

6.6 TO DRIVE / TRANSPORT____________________________________________________

Read and follow all safety notes contained in this manual

when driving or transporting mower. Refer to Section 6.3

for general operating instructions. When operating in

reverse look behind you to ensure you have a clear path.

Important: If this mower is driven on public roads, it must

comply with federal, state, and local ordinances. Contact

local authorities for regulations and equipment

requirements.

1. Disengage all drives and raise implements to the

transport position when driving to and from the area

of operation.

2. Disengage parking brake and move traction lever to

Transport (2). Depress accelerator pedal slowly.

6.7 HILLSIDE OPERATION _____________________________________________________

The mower has been designed for good traction and

stability under normal mowing conditions; however, use

caution when operating on slopes, especially over rough

terrain or when the grass is wet. Wet grass reduces

traction and steering control.

1. If the mower tends to slide or the tires begin to “mark”

the turf, angle mower into a less steep grade until

traction is regained or tire marking stops.

2. If mower continues to slide or mark the turf, the

grade is too steep for safe operation. Do not make

another attempt to climb, and back down slowly.

Correct tire pressure is essential for maximum traction.

Front - 10-12 psi (0.69-0.83 BAR)

Rear - 8-10 psi (0.55-0.69 BAR)

Figure 6B

Figure 6C

CAUTION

To prevent tipping or loss of control, travel at reduced

speed when making turns.

!

WARNING

To minimize the possibility of overturning, the safest

method for operating on hills and terraces is to travel

up and down the face of the slope (vertically), not

across the face (horizontally). Avoid unnecessary

turns, travel at reduced speeds, and stay alert for

hidden hazards and drop offs.

CAUTION

Do not operate this mower on side slopes greater than

12.5° (22.1% grade).

!

12.5°

22.1% Maximum

12.5°

22.1% Maximum

0°

Degrees are shown to nearest 1/4°

0%

2-3/4°

5%

5-3/4°

10%

8-1/2°

15%

11-1/4°

20%

14°

25%

16-3/4°

30%

19-1/4°

35%

21-3/4°

40%

24-1/4°

45%

26-1/2°

50%

28-3/4°

55%

31°

60%

33°

65%

35°

70%

36-3/4°

75%

38-3/4°

80%

40-1/4°

85%

42°

90%

43-1/2°

95%

45°

100%

Degrees

Grade

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Jacobsen 62306 Maintenance Manual

Jacobsen 62306 Maintenance Manual

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