Jacobsen 544913 Owner's manual

Brand: Jacobsen

Model: 544913

Category: Mini tillers

Type: Owner's manual

Safety & Operation

Manual

GA 60

Model 544913

4117232-Rev A

Litho in U.S.A. 10-2002

Lincoln, Nebraska • Printed in U.S.A.

GENERAL INFORMATION

IMPORTANT!

THIS MANUAL WILL AID YOU IN THE SAFE

OPERATION AND PROPER MAINTENANCE OF

YOUR EQUIPMENT. READ MANUAL THOROUGHLY

BEFORE ATTEMPTING OPERATION. IF ANY

PORTION IS NOT CLEARLY UNDERSTOOD,

CONTACT AN AUTHORIZED DEALER FOR

CLARIFICATION.

To make sure you are fully aware of safety and service

information, the following two symbols are used

throughout this manual.

This symbol is used throughout the manual to

alert you to information about unsafe actions or

situations, and will be followed by the word DANGER,

WARNING, or CAUTION. DANGER indicates

immediate hazards that may result in severe injury or

death. WARNING indicates unsafe actions or situations

that may cause severe injury, death and/or major

equipment or property damage. CAUTION indicates

unsafe actions or situations that may cause injury, and/or

minor equipment or property damage.

NOTE: This appears next to information or instructions

which will help you operate and maintain your

equipment the right way.

WARNING

S The information and instructions included

in this manual alert you to certain things

you should do very carefully. If you do not,

you could:

• hurt yourself or others

• hurt the next person who operates the

equipment

• damage the equipment.

S This manual contains essential operation

and safety information and must remain

with the unit at all times, within easy ac-

cess of any operator.

Additional manuals are available through your dealer.

IMPORTANT!

THIS EQUIPMENT SHOULD NOT BE MODIFIED OR

ADDED TO WITHOUT THE MANUFACTURER’S

AUTHORIZATION.

WARNING

S Altering this equipment in any manner

which adversely affects the equipments

operation, performance, durability or use,

may cause hazardous conditions.

Direct any inquiries to:

Textron Golf, Turf and Specialty Products

Attn: Director of Engineering

P.O. Box 7708

Charlotte, NC 28241–7708 USA

SPECIFICATION INFORMATION

All information contained in this manual is the latest

available at the time of printing. Textron Golf, Turf and

Specialty Products reserves the right to make changes

at any time without notice.

Whenever a name brand product is specified, an

equivalent product may be used unless stated otherwise.

CHANGE OF OWNERSHIP OR ADDRESS

Textron Golf, Turf and Specialty Products makes every

effort to keep owners informed of all safety related

information. Therefore, changes in ownership and/or

address should be reported to the manufacturer.

Your dealer has REGISTRATION CHANGE FORMS

which will be filled out and filed by the dealer for his

records, and a copy will be sent to the manufacturer.

DEALER INFORMATION

For your nearest dealer location write to:

Textron Golf, Turf and Specialty Products

Attn: Sales

P.O. Box 7708

Charlotte, NC 28241–7708 USA

In the USA and Canada call 1–800–228–4444 (dealer

information only).

TABLE OF CONTENTS

1 Operation Safety 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 Decals 3-4

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

3 Identification 5

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

3.1 Model Number and Serial Number 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 Service Parts and Support Material 5. . . . . . . . . . . . . . . . . . . . . . . . . .

5 Specifications 6

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

5.2 Towing Vehicle Specifications (Turf Trucksters) 6. . . . . . . . . . . . . . . . . . . .

5.3 Towing Vehicle Specifications (Turf Utility Tractor) 6. . . . . . . . . . . . . . . . .

6 Set Up 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.1 Set Up Instruction for Turf Truckster 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.2 Power Cable Installation 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.3 Tongue Installation 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.4 Hitch Coupler Installation 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.5 Reinstalling Side Panels 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.6 Set Up Instruction for Tractor 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.7 Removing From Pallet 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.8 Installing Tines 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7 Operation 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.1 Pre–Operation Check 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.2 Control Panel 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.3 Before Starting Engine 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.4 GA–60 Starting Procedure 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.5 Beginning Aeration 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.6 Aerating Depth Adjustment 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8 Maintenance 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.1 Daily Maintenance 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.2 Lubrication Fittings 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.3 Air Cleaner 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.4 Checking Element 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.5 Installing Element 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.6 Fuel System 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.7 Fuel Filter 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.8 Engine Choke Control 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.9 Engine Oil 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.10 Engine Oil Level 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.11 Drive Chain Lubrication 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.12 Towing 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.13 Tire Pressure 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.14 Daily Storage 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9 Tine Holders 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10 Tines 22-23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11 Torque Chart 24

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

12 Warranty 25–26

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

1 OPERATION SAFETY

WARNING

EQUIPMENT OPERATED IMPROPERLY OR BY

UNTRAINED PERSONNEL CAN BE DANGEROUS

This is heavy equipment. Improper use, or operat-

ing the unit in areas that may cause it to overturn,

could cause serious injury or death to you the oper-

ator or bystanders.

READ and understand the operator’s manual be-

fore attempting to operate this unit.

Immediately replace any warning and/or safety

decal that becomes damaged or difficult to read.

This product is heavy equipment and may present a

crush hazard unless safety precautions are taken.

DO NOT place hands or feet beneath unit at any

time, unless engine is shut off and yellow uplatch

bar is securing unit in “UP” position.

Allow ONLY trained and authorized persons to op-

erate this unit. NEVER allow children to operate this

unit. Local regulations may restrict the age of the

operator.

Use ONLY the standard drawbar approved by the

tractor manufacturer. The height from the ground

to the top of the drawbar must be 13 to 19.7 inches

(330–500 mm).

Never operate the unit while under the influence of

alcohol or drugs.

Never operate the unit while people, especially chil-

dren, or pets are nearby.

Keep in mind that the operator or user is responsi-

ble for accidents or hazards occurring to other

people or property.

BEFORE using the unit, always inspect it for prob-

lems. If something is wrong, DO NOT USE IT. Fix the

problem before using the unit to prevent possible

injury.

WHILE using the unit, if something is found to be

wrong, STOP using it. Fix the problem before the

unit is used again.

Operate the machine up and down the slope (verti-

cally), not across the face of the slope (horizon-

tally).

ALWAYS use good judgement when operating on

or near hills or slopes. NEVER start or stop sud-

denly, you may cause unstable operating condi-

tions. NEVER change directions abruptly or make

sharp turns on slopes.

DO NOT place hands or feet near or under moving

parts at any time.

Check work area and remove foreign objects which

may be a hazard to the operator, bystanders or

damage the equipment.

To prevent damage to the unit or other equipment,

BE SURE all under ground obstacles are clearly

marked.

Make sure all shields and guards are in place to

prevent possible injury.

NEVER attempt to aerate in reverse.

Always run unit engine where there is plenty of

fresh air to prevent a buildup of carbon monoxide

fumes. Carbon monoxide is colorless, odorless

and deadly. NEVER run unit in an enclosed space

where exhaust fumes will collect.

Never use the unit in, or near an area where there is

dust or fumes in the air which may be explosive.

The electrical and exhaust systems of this unit will

make sparks which could ignite explosive materi-

als.

DO NOT operate unit over any hard surfaces (drive-

ways, sidewalks, etc.) with aerator heads in low-

ered position.

Always stop engine and DO NOT smoke or allow

open flames or sparks when refueling. Gasoline is

extremely flammable and highly explosive under

certain conditions.

DO NOT remove radiator cap while engine is hot.

Radiator contents are under pressure and spray

may cause serious injury. Read this manual thor-

oughly to be aware of safe operating procedures.

Gasoline is extremely flammable and highly explo-

sive under certain conditions.

Never remove the fuel tank cap or attempt to refuel

the GA–60 or Turf–Truckster while either engine is

operating.

DECALS 2

PICTORIAL DECALS

This decal instructs the operator to read and understand the operators

manual. To prevent injury, they must be familiar with the operation of this

product and be fully aware of all safe operating procedures.

This symbol shows fingers and hand being cut or

severed. DO NOT place hands and fingers under GA–60

while operating the unit.

This symbol shows toes and feet being cut or severed. DO NOT place toes

or feet under GA–60 while operating the unit.

This symbol instructs the operator to read and

understand the operators manual. To prevent injury,

they must be aware of safe operating procedures.

This symbol is used to show the possible result of operating the

GA–60 without a tip– over device attached to the towing vehicle.

This symbol shows the towing vehicle being operated

with a tip–over prevention device in place.

This symbol informs the operator and/or bystanders

to keep a safe distance away from machinery.

This symbol is used to inform operators of the possiblity of hazardous conditions.

This symbol warns the operator to keep hands away from hot radiator cap.

This symbol instructs the operator to read the service sec-

tion of the operators manual.

This symbol informs the operator and/or bystanders to keep a safe dis-

tance away from machinery.

This symbol is used to show the possible result of working under the

machinery without taking safety precautions.

2 DECALS

PICTORIAL DECALS

This symbol shows the posi-

tion of the up latch bar pin

when the heads are in the up

and locked position. Also

shown is the pin position for

the unlocked position.

These operation decals show the auxiliary transmission in low range and

the drive transmission in low gear. Use the decal that corresponds with the

Turf Truck you are operating (refer to page 15 of this manual). The various

engine speeds are also shown with the corresponding hole spacing.

845441

2100

2400

2700

3000

MM.

100

115

125

(INCH)

(3 1/2)

(4)

(4 1/2)

(5)

N/MIN

660CC

845442

2800

3200

3600

4000

MM.

100

115

125

(INCH)

(3 1/2)

(4)

(4 1/2)

(5)

N/MIN

1600

1800

2100

2300

MM.

100

115

125

(INCH)

(3 1/2)

(4)

(4 1/2)

(5)

N/MIN

840892

845440

3000

3500

4000

4400

MM.

100

115

125

(INCH)

(3 1/2)

(4)

(4 1/2)

(5)

N/MIN

660CC

IDENTIFICATION 3

3 IDENTIFICATION

THESE IDENTIFICATION NUMBERS MUST APPEAR

ON ALL CORRESPONDENCE CONCERNING THIS

UNIT.

3.1 MODEL NUMBER & SERIAL NUMBER

Both the Model Number and Serial Number are on the

identification nameplate located on the right side of the

tool box by the gas tank (See Fig. 1).

Figure 1

1. Identification Nameplate

4 SERVICE PARTS AND

SUPPORT MATERIAL

Description Part Number. . . . . . . . . . . . . . . . . . . . . . . .

Drive Belt 835063. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chain, #50 sealed roller, 69 links 891956. . . . . . . . . . . .

Connector, #50 sealed 522123. . . . . . . . . . . . . . . . . . . . .

Element, Fuel Filter 821814. . . . . . . . . . . . . . . . . . . . . . . .

Element, Air Filter 840352. . . . . . . . . . . . . . . . . . . . . . . . .

Element, Oil Filter 833438. . . . . . . . . . . . . . . . . . . . . . . . .

Condenser, Ignition 833475. . . . . . . . . . . . . . . . . . . . . . . .

Spark Plug 835825. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Points, Ignition 888587. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Rotor, Ignition 888588. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chain Lubricant, Spray 523248. . . . . . . . . . . . . . . . . . . . .

Wool Grease 893078. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts and Maintenance Manual 4117233. . . . . . . . . . . .

Coring tines See page 22. . . . . . . . . . . . . . . . . . . . . . . . .

Touch up paint, Jacobsen Orange

16 oz. (.5L) spray 2700345. . . . . . . . . . . . . . . . . . . . . . .

1 qt. (.95L) can 2700351. . . . . . . . . . . . . . . . . . . . . . . . . .

Black, 16 oz. (.5L) spray 814294. . . . . . . . . . . . . . . . . . .

5 SPECIFICATIONS

(subject to change without notice)

Aerating Width:

60” (1524 mm)

Engine:

Bore – 2.62” (66.5 mm)

Stroke – 3.19” (81 mm)

Displacement – 51.7 cu. in. (847 cm3)

Compression Ratio – 9.5:1

Cylinder Compression – 213 PSI at 400 RPM

(1486 KPa at 400 RPM)

Horsepower – 33 h.p. at 3600 RPM

Engine Rotation (viewed from flywheel) –

counterclockwise

Spark Plug Gap – .032 (0.81 mm)

Breaker Point Gap – .017 (0.43 mm)

Ignition Timing – 0° BTDC at 1000 RPM

Idle Speed – 1300 RPM (minimum)

Valve Clearance – (Hot) Intake .010 (.25 mm)

(Hot) Exhaust .012 (.30 mm)

Equipment Height: 42” (1067 mm)

Equipment Length: 101” (2565 mm) (GA 60 alone)

172” (4369 mm) (with 3–wheel Turf–Truckster)

Equipment Weight: 2209 lbs. (1002.8 kg) with

440 lbs. (199.7 kg) carried on Turf–Truckster

Equipment Width: 92” (2337 mm)

Hole Spacing: 3 1/2” to 5” variable

(89 mm to 127 mm)

Penetration Depth: 2 1/2” (64 mm) to 4” (102 mm)

maximum (depending on soil conditions)

Truckster Speed: Engine: 2300 RPM (maximum

during aeration)

Aeration: 1500 to 2300RPM

Transport: Reasonable safe speed (10 mph max.)

Use caution when towing aerator at

speeds above 5 M.P.H.

Standard Tines: Type: Hollow, tapered (self–cleaning)

Material: Through hardened steel

Quantity: 24 tines per unit

Sizes: 3/4” (19 mm)

Tires: Size: 23 – 10.50 x 12 High flotation

Recommended Pressure – 18 psi

5.2 TOWING VEHICLE SPECIFICATIONS

(Utility Vehicles)

NOTE: It is recommended that an 8720 or later model

Cushman Turf–Truckster be used to tow and oper-

ate the GA–60 aerator. The following towing vehicle

specifications must be met to insure proper and safe

operation of the GA–60.

Minimum towing vehicle weight – 1000 lbs. (454 kg)

Hitch height – approximately 31 1/4” (794 mm) for 9120

and prior models and approximately 25” (635 mm) for

9210 and later models.

Vibration dampening hitch required.

Mechanism to insure towing vehicle will not tip over back-

wards when attached to GA–60.

Brakes – 7” (178 mm) hydraulic (minimum) on axle with

most weight.

Brake light system to power the electric brakes.

Hydraulic system requirements: 1800 psi minimum

at 5 gallons per minute.

Variable speed governor (22 H.P. minimum engine size).

Mechanical transmission and drive to prevent change in

ground speed.

Ability to maintain constant 1–2 mph speed with gov-

erned engine for 3 1/2” – 5” (89 mm to 127 mm) core

spacing.

5.3 TOWING VEHICLE SPECIFICATIONS

(Turf Utility Tractor)

Minimum weight of turf utility tractor – 2700 lbs. (1225

kg).

12 volt negative ground electrical system.

Standard drawbar approved by tractor manufacturer.

Drawbar height must be 13 – 19.7 inches (330–500 mm)

from ground to top of drawbar.

Hydraulic system with 1800 to 2250 psi (12.4 to 15.5

MPa) maximum pressure. Minimum output of 3 gallon

per minute (11.4 L/min). Quick couplers located at rear

of tractor.

Braking system capable of controlling the tractor and the

towed GA–60 weighing 2300 lbs. (1044 Kg).

Governor and properly geared transmission capable of

controlling ground speed from 1 to 2 mph (1.6 to 3.2

km/hr) while aerating.

SET UP 6

6 SET UP

6.1 SET–UP INSTRUCTIONS FOR

CUSHMAN TURF–TRUCKSTER

IMPORTANT!

TO UTILIZE YOUR CUSHMAN TURF–TRUCKSTER

AS A TOWING VEHICLE FOR THE GA–60, THE FOL-

LOWING KITS/ACCESSORIES SHOULD FIRST BE

INSTALLED ON THE TURF–TRUCKSTER:

1. Quick disconnect power cable installation kit (parts

included in the GA–60 loose parts bag).

2. Hydraulic remote coupler kit (Part No. 889558) for

9020 Turf–Truckster models and prior or hydraulic

system for models 9110 and later.

3. Fifth wheel and electric brake control installation kit.

NOTE: To utilize 5th wheel implements not equipped

with tongue extensions on 8710–9120 model Turf

Trucksters, use 5th wheel hitch kit (Part No.

889623). To use 5th wheel implements equipped

with a tongue extension on 8710 & later Turf Truck-

sters, use 5th wheel hitch kit (Part No. 890170).

4. Tachometer.

5. Variable speed governor.

6. Hydraulic system.

7. 3.2:1 ratio auxiliary transmission (9120 & prior).

8. 11.16:1 ratio 2–speed standard differential

(9210 & later).

During transport with the aerator heads raised, the GA 60

can be transported at any reasonable safe speed

(10mph maximum) ALWAYS use extreme care when

towing aerator at any speeds above 5 mph.

6.2 POWER CABLE INSTALLATION

NOTE: These instructions are for persons using Cush-

man Turf–Truckster (8720 and later) models

898530, 898532, 898630, 898632, 898633 and

898634 to tow their GA–60.

If using towing vehicle other than the Turf Trucksters

listed above, use good judgment in finding a suit-

able mounting location for the power cable.

BE SURE there is adequate cable length to connect

to the GA–60 and for turning either direction without

disconnecting the power cable.

WARNING

To prevent sparks, disconnect the negative (–)

battery cable before installing power cable.

1. Locate the right side backrest support bracket on the

seat back. Just below the bracket on the support

panel flange is an existing 5/16” (8 mm) hole.

2. With (1) one 1/4–20 x 1 1/4” screw, nut and lock-

washer from the loose parts bag, loosely attach

power cable connector to support panel flange using

existing 5/16” (8 mm) hole. See figure 2.

4238

Figure 2

1. Power Cable Assembly

2. Mounting Hardware

3. Support Panel Flange

3. Before drilling a second mounting hole, mark the

hole location by placing a pointed object (punch, awl,

etc.) through the second hole in the power cable con-

nector and lightly scratching the surface.

4. Rotate power cable connector away from the second

hole location to allow easier access for drilling.

5. Drill second mounting hole using a 1/4” (6.5 mm) drill

bit.

6 SET UP

6. Rotate cable connector back to original position and

secure with (1) one 1/4–20 x 1 1/4” screw, lock-

washer and nut from the loose parts bag. Tighten all

hardware.

7. Connect eyelet end of black cable to vehicle frame

negative ground location using existing hardware.

8. Using the existing hardware on the starter solenoid

(located on the stopwall), connect the red cable end

from power cable connector to the solenoid post the

positive cable from the battery is connected to.

9. Reconnect the negative (–) battery cable to the bat-

tery.

6.3 TONGUE INSTALLATION

WARNING

To prevent possible injury to yourself or oth-

ers, stay clear when cutting banding. Banding

is under tension and may snap back when cut.

Wearing leather gloves or similar protection

will help protect hands from sharp edges when

removing banding from shipping pallet.

DO NOT operate equipment until you have

thoroughly read and completely understand

the controls and operation sections of this

manual. If anything is not completely under-

stood, contact your CUSHMAN dealer for clari-

fication before operating equipment.

1. Loosen and raise left (facing front of unit) top cover

and latch in the UP (raised) position.

2. Open air duct lid and remove loose parts bag from

tool box.

3. Carefully cut and remove all banding securing the

GA–60 tongue components to the shipping pallet.

4. Turn jack handle counterclockwise to raise jack. Pull

locking pin from jack and swivel jack towards rear of

unit. Using the locking pin, lock the jack in the UP

(raised) position.

CAUTION

The tongue components are very heavy. To

avoid injury, BE SURE to have assistance

when lifting or moving any of these compo-

nents.

5. Carefully slide tongue components out from under

sides of GA–60 and remove from pallet.

6. Loosen the right side top cover panel and raise till

latched in the UP (raised) position.

CAUTION

Use caution when removing upper side panel

mounting screws. When screws are removed

from panel, the panel inner support assembly

will become loose and could fall.

7. Remove both upper side panels, both lower panels,

upper support assemblies and lower support brack-

ets. Retain mounting screws.

8. Loosen and remove all hardware including isolation

mounts from (2) two unpainted shipping plates

located at the tongue mounting locations. Refer to

Figure 3. Retain all original hardware except nuts.

4244

Figure 3

1. Shipping Plate

2. Isolation Mounts

3. Upper Support Assembly

9. Discard shipping plates and the four (4) nuts

removed with each plate.

SET UP 6

10. With three (3) 5/8–11 x 4” hitch bolts, attach right side

tongue tube to main frame assembly. See Figure 4.

Attach left side tongue tube to frame. Do not secure

at this time.

5083

Figure 4

1. Tongue Tube

2. Mounting Hardware

11. Using four (4) 5/8–11 x 5” screws, lockwashers, nuts

and eight (8) thrust washers, attach short or long

tongue extension to right and left tongue tubes. See

Figures 5 and 6.

5084

Figure 5

1. Short Tongue Extension

(used when towed w/turf–truckster)

5085

Figure 6

1. Long Tongue Extension

(used when towed w/tractor)

2. Hose Support

12. Torque the six (6) 5/8–11 x 4” hitch bolts to 120 ft.–

lbs. (162 to 163 N⋅m). Torque the four (4) 5/8–11 x 5”

screws to 120 ft.–lbs. (162 to 163 N⋅m).

NOTE: When using the long tongue extension, attach

the hose support to the tongue extension as shown

in Figure 6.

13. Cut tie strap and uncoil hydraulic hoses, power

cable, and control panel cable and route them down

the right (facing the front of unit) side of tongue,

securing them with tie straps. The hoses should then

be routed through the hose support on the fifth wheel

of the towing vehicle.

6.4 HITCH COUPLER INSTALLATION

1. Raise the tool box lid and remove the hitch coupler.

Attach the hitch coupler to the tongue extension

using two (2) 1/2–13 x 4 1/4” screws, nuts and lock-

washers.

2. Torque the two (2) screws to 75 ft.–lbs. (102 N⋅m).

6.5 REINSTALLING SIDE PANELS

1. Reinstall both upper side panels using all original

hardware except for nuts. Replace shipping nuts

with new centerlock nuts from loose parts bag.

NOTE: For easier installation of the lower side cover

panel, attach the panel bracket to the inside of the

panel using double sided tape or a similar material.

2. Using original retained hardware, reinstall both lower

side cover panels.

3. Unlatch and lower both top cover panels and secure

in the DOWN (lowered) position.

6 SET UP

6.6 SET–UP INSTRUCTIONS FOR

TURF UTILITY TRACTOR

1. Install and secure a 2” (51 mm) tow hitch ball to the

standard tractor drawbar. BE SURE the hitch ball is

a class 2 (3500 lb. capacity) or better ball.

CAUTION

Use ONLY the standard drawbar approved by

the tractor manufacturer. The height from the

ground to the top of the drawbar must be 13 to

19.7 inches (330–500 mm).

2. Mount power cable assembly (Part No. 889171) in a

suitable location at the rear of the tractor. Connect

the red cable end to the same post the tractor posi-

tive battery cable is attached to. Connect the black

cable to a good ground on the tractor frame. Refer to

wiring diagram.

NOTE: Cable lengths and eyelets may need to be modi-

fied depending upon the configuration of your trac-

tor.

3. Mount the GA–60 control panel at a location within

arms reach of the tractor operator. Connect the con-

trol box harness (Part No. 889174) to the GA–60

main harness (Part No. 889547). A wire harness

extension (Part No. 892790) may be used if addi-

tional wire harness length is required. This extension

is included in the long extension accessory (Part No.

892964).

4. The wheel brakes on the GA–60 are NOT USED

when towed with a turf utility type tractor. The brake

bypass jumper (Part No. 892793) must be plugged

into the wire assembly (Part No. 889052) on the

GA–60 control panel. See Figure 7. If the brake

bypass jumper is not installed, the GA–60 engine will

not start. Refer to wiring diagram.

5082

Figure 7

1. Brake Bypass

2. Control Panel

NOTE: The GA–60 brakes are not utilized therefore the

towing tractor must weigh a minimum 2700 lbs.

(1225 Kg). The tractor brakes must be capable of

controlling the tractor and the 2300 lb. (1044 Kg)

GA–60.

5. Determine what type and size hydraulic quick cou-

plers are used on the towing tractor. Change the

ends on the GA–60 hydraulic hoses to match the

towing tractor hydraulic fittings. Add to hydraulic

hose length if required.

6. Attach long tongue extension to 2” (51 mm) hitch

ball on tractor draw bar. Route the wire harness,

power cable and hydraulic hoses through the hose

support mounted on the long tongue extension.

7. Connect wire harness, power cable and hydraulic

hoses to tractor. Remove GA–60 from pallet as

described in the following section.

8. With the GA–60 engine turned off and the heads in

the “UP” position, pull and turn the tractor fully to the

left and right. Make sure all hoses, wiring and hitch

move freely and are not rubbing against adjacent

parts.

9. With the GA–60 heads in the “UP” position, disen-

gage the uplatch bar shown in Figure 8. Start the

GA–60, move to a turf area and lower the aerator

heads. Lowering the aerator heads will increase the

GA–60 engine speed and will engage the aerator

SET UP 6

drive as it lowers. The aerator drive will disengage

and engine will return to idle when the aerator heads

are raised.

NOTE: If raising the hydraulic lever lowers the aerator,

the hydraulic lines are reversed. Reverse the

hydraulic lines at the quick couplers.

10. The GA–60 can produce a maximum hole spacing of

5” (125 mm). Hole spacings larger than 5” (125 mm)

will SEVERELY DAMAGE the aerator mechanism.

NOTE: The tractor speed MUST BE kept below 2 mph

(3.2 km/hr) when aerating. BE SURE to use an

engine speed and transmission gear that will result

in a hole spacing of less than 5” (127 mm). Aerating

speeds exceeding the allowable 2 mph (3.2 km/hr)

will SEVERELY DAMAGE the aerator mechanism

components.

Hole

Spacing

Miles

Per

Hour

2.5”

3.7”

5.0”2.0

1.5

1.068 seconds

51 seconds

34 seconds

Approximate

time needed to

drive 100’

Tractor Hole Spacing Chart

Inches

(30.5 Meters) (Km/hr.) (mm)

During transport with the aerator heads raised, the GA 60

can be transported at any reasonable safe speed

(10mph maximum) ALWAYS use extreme care when

towing aerator at any speeds above 5 mph.

NOTE: The GA 60 may be damaged if towed on a

flatbed trailer without the aerator heads lowered.

Place boards or similar type material on the trailer to

prevent damage to trailer and/or tines when the

heads are lowered.

6.7 REMOVING FROM PALLET

1. Carefully cut and remove all banding securing aera-

tor to shipping pallet.

2. Back the towing vehicle up to the GA–60. Position

the towing vehicle so the tongue may be lowered

onto the 5th wheel ball.

3. Loosen mounting clamp knob on rear of control

panel to allow the control panel to be mounted on the

right side hand hold of the Turf–Truckster or towing

vehicle. Tighten mounting clamp knob to secure.

4. Connect control panel cable from GA–60 to right side

of control panel. Attach multi–pin connector from the

bottom of the control panel to the connector

mounted on the right stopwall support.

5. Lock the hydraulic lift control on the Turf–Truckster

or towing vehicle in the float position to relieve

hydraulic pressure. This will allow the hydraulic

hoses to be connected more easily.

NOTE: After connecting the hydraulic hoses, BE SURE

to release the hydraulic lift control from the float

position.

6. Connect the quick coupler power cable from the

GA–60 to the Turf–Truckster or towing vehicle.

7. Start the Turf–Truckster or towing vehicle engine and

raise the aerator heads slowly to lower the tongue

onto the fifth wheel ball. Tighten ball grip to fifth wheel

ball by turning square nut on hitch coupler clockwise

until tight.

8. Raise aerator heads as high as possible to allow

GA–60 to be removed from pallet.

NOTE: Place various thickness boards or blocks in front

of pallet to help prevent the GA–60 from dropping to

the ground from pallet during removal.

BE SURE aerator heads are raised to their maxi-

mum height to assure the turf guards do not catch

on pallet.

WARNING

DO NOT allow anyone to stand directly behind

pallet during removal of the GA–60.

The weight of the unit may cause the pallet to

slide back quickly when the GA–60 is removed.

9. Slowly drive the Turf–Truckster or towing vehicle for-

ward to remove GA–60 from pallet.

6 SET UP

6.8 INSTALLING TINES

WARNING

DO NOT attempt to install tines with either the

aerator or towing vehicle engine running.

Remove key from towing vehicle and discon-

nect power cable to GA 60 to insure that neither

engine can be started during tine installation.

Set parking brake on towing vehicle.

Before installing tines or performing any work

under the GA–60, always lock the uplatch bar

in place to prevent the accidental lowering of

the aeration heads or the lowering of the heads

due to a loss in hydraulic pressure.

To lock uplatch bar, remove the pin under the

rear of the bar and move it to the upper hole,

making sure the pin passes through the

uplatch bar to lock it in place. See figure 8.

Figure 8

1. Uplatch Bar (Locked position)

2. Pin

3. Lower Hole

1. Insert three (3) tines per holder and torque screws

(see torque chart). BE SURE tines are tight against

shoulder on tine holder. Open side of each tine

should be positioned towards the rear of the machine

for proper ejection of cores (See Fig. 9).

Figure 9

OPERATION 7

7 OPERATION

7.1 PRE–OPERATION CHECK

1. Check grounds area and remove foreign objects

which may be a hazard to the operator or could dam-

age the equipment.

2. Visually check all moving parts and fasteners, if bro-

ken or loose, replace or tighten. Check for broken or

bent tines, replace as necessary.

3. Make sure that all shields and guards are in place.

NEVER make adjustments or perform any mainte-

nance while the engine is running.

4. BE SURE turf–truckster stabilizer tube is in place

before operating GA–60. Refer to decal illustrated

above.

7.2 CONTROL PANEL

Figure 10

1. Water Temperature Gauge

2. Hour Meter

3. On/Off Switch

4. Starter Button

5. Oil Light

7.3 BEFORE STARTING ENGINE

WARNING

Always run unit engine where there is plenty of

fresh air to prevent a buildup of carbon monox-

ide fumes. Carbon monoxide is colorless,

odorless and deadly. NEVER run unit in an

enclosed space where exhaust fumes will col-

lect.

Never use the unit in, or near an area where

there is dust or fumes in the air which may be

explosive. The electrical and exhaust systems

of this unit will make sparks which could ignite

explosive materials.

DO NOT operate unit over any hard surfaces

(driveways, sidewalks, etc.) with aerator heads

in lowered position.

Always stop engine and DO NOT smoke or

allow open flames or sparks when refueling.

Gasoline is extremely flammable and highly

explosive under certain conditions.

WARNING

DO NOT place hands or feet beneath unit at any

time, unless engine is shut off and yellow

uplatch bar is securing unit in “UP” position.

Always use good judgment when operating on

or near hills or slopes. NEVER start or stop

suddenly. NEVER change direction of unit

abruptly or make sharp turns on slopes.

ALWAYS drive straight up and down the face

of slopes, NEVER across the face of slopes.

NEVER attempt to aerate in reverse.

NOTE: Use extreme care when backing unit. DO NOT

back unit with aerator in DOWN position. The tines

and tine rams may be severely damaged.

1. Check engine oil level with aerator heads lowered

and add oil if necessary. See engine oil section for

type and quantity of oil.

2. Fill GA–60 fuel tank with gasoline. See fuel section

for type and quantity of fuel.

7 OPERATION

7.4 GA–60 STARTING PROCEDURE

1. Set ON/OFF toggle switch in “ON” position and

depress start button. Release start button as soon as

engine starts. Allow approximately 5 minutes warm

up time for engine before beginning aerating.

NOTE: NEVER depress start button while engine is run-

ning. Starter drive and flywheel ring may be dam-

aged.

CAUTION

To prevent possible breakage of hydraulic lift cylin-

der brackets on frame, unit MUST BE resting on

down stops while aerating.

NEVER use the hydraulic lift cylinder to adjust

depth of aeration.

7.5 BEGINNING AERATION

WARNING

BE SURE electric brakes are working properly

before beginning aeration. NEVER operate the

GA–60 if the brakes are not adjusted correctly.

Refer to electric brakes section.

1. Place the governor control lever in “DOWN” position.

2. Depress foot throttle pedal down to the floorboard.

3. Refer to decal to obtain desired RPM and hole spac-

ing for the Turf Truckster you are operating.

Decal 1: is for all Trucks manufactured prior to Aug.

1998. (Check ID plate for year of manufacture.)

Decal 2: is for Trucks with a 660 engine and manual

transmission.

Decal 3: is for Trucks with a 970 or diesel engine with

manual transmission.

Decal 4: is for Trucks with a 660 engine and auto-

matic transmission.

4. Raise foot from throttle pedal to allow engine to

return to idle speed.

5. Depress clutch pedal and place transmission gear

selector in FIRST gear.

NOTE: Aerating in a higher gear will damage the aerat-

ing mechanism and will also result in poor hole qual-

ity.

6. Shift Turf–Truckster auxiliary transmission into LOW

range.

7. Slowly release clutch pedal to engage clutch while

depressing foot throttle.

8. After reaching desired engine RPM’s, slowly push

hydraulic flow control lever down to lower aerating

heads and begin aeration.

845440

3000

3500

4000

4400

MM.

100

115

125

(INCH)

(3 1/2)

(4)

(4 1/2)

(5)

N/MIN

660CC

845442

2800

3200

3600

4000

MM.

100

115

125

(INCH)

(3 1/2)

(4)

(4 1/2)

(5)

N/MIN

845441

2100

2400

2700

3000

MM.

100

115

125

(INCH)

(3 1/2)

(4)

(4 1/2)

(5)

N/MIN

660CC

1600

1800

2100

2300

MM.

100

115

125

(INCH)

(3 1/2)

(4)

(4 1/2)

(5)

N/MIN

840892

DECAL 1

DECAL 2

DECAL 3

DECAL 4

OPERATION 7

7.6 AERATING DEPTH ADJUSTMENT

The GA–60 is designed to aerate at a MAXIMUM depth

of 4” (102 mm). The operator should be aware that, in

extremely hard soil, the machine may not be capable of

pushing the tines 4” (102 mm) into the ground. DO NOT

operate with the depth setting at the 4” (102 mm) maxi-

mum when the tines are only penetrating 2–3 inches

(51–76 mm). Operating under these conditions will

cause premature wear and/or broken components in the

aerator linkage. If the aerator tires consistently ride up off

the turf or bounce up off the turf, the ground is too hard.

NEVER try to aerate at a depth greater than the soil

conditions will allow. The operator must first make a test

run, measure the depth of the holes, and set the depth

adjustment to correspond. After aerating the area once

or twice at that depth to loosen the sub–soil, it may be

possible to lower the settings each time until the 4” (102

mm) maximum depth can be accomplished without

abusing the GA–60.

AGAIN––Aerate a small test plot, measure the depth of

the hole and adjust the depth setting on the GA–60 to

match it.

If aerating extremely hard soil, additional penetration is

possible with added water, either by rain or irrigation.

Moist ground is easier to aerate than dry ground and is

also easier on the aerator mechanism.

If aerating in soil with rocks or stones, additional penetra-

tion over time may not be possible. The operator must

determine what depth is possible for that area and be

sure he does not exceed that depth.

Adjusting the depth from 2 1/2” (64 mm) to 4” (102 mm) is

accomplished by adjusting the 1/2” (13 mm) axle stop

spacers shown in Figure 11.

Figure 11

1. Downstop Block

2. Spacers

8 MAINTENANCE

8 SERVICE AND MAINTENANCE

WARNING

When performing service or maintenance work on the

GA 60, ALWAYS lock the uplatch bar in place to pre-

vent the aeration heads from being lowered acciden-

tally or due to a loss in hydraulic pressure. Set the

park brake on the tractor.

If any type of work is to be performed on the GA 60,

disconnect the power cord and remove the key from

the towing vehicle. This will prevent the GA 60 and the

towing vehicle from being accidentally started.

When replacement parts are required, use genuine

RYAN parts or parts with equivalent characteristics

such as type, strength and material. Failure to do so

may result in product malfunction and possible injury

to the operator and/or bystanders.

NEVER attempt to perform service or maintenance

functions on the GA 60 if you are UNTRAINED or

UNAUTHORIZED. Improper maintenance can and will

cause hazardous conditions. For necessary mainte-

nance and service, contact your authorized RYAN

dealer.

When it is necessary to raise the GA 60PT for any

repair or service, use jackstands to help provide ade-

quate support. DO NOT rely on hydraulic or mechani-

cal jacks for support.

Immediately replace any warning and/or safety decal

that becomes damaged or difficult to read.

To reduce hazard of fire, always keep engine free of

excessive grease. If fuel system leakage is detected,

repair leak immediately. DO NOT operate unit until

leak is repaired. ALWAYS stop engine and do not

allow open flames or sparks when performing any

maintenance function involving gasoline.

This product is heavy equipment and may present a

crush hazard unless safety precautions are taken.

DO NOT operate equipment without all shields and

guards in place.

To prevent possible injury, keep bystanders a safe

distance away from machinery.

DO NOT make any adjustments or perform any main-

tenance while the engine is running.

BE SURE to read the service section of this operators

manual and the parts and maintenance manual prior

to performing any service work on this product.

MAINTENANCE 8

8.1 DAILY MAINTENANCE

1 Check the tire pressure (18 psi, 124 kPa).

2 BE SURE the weight is off of the tires. Lubricate axle

pivots with a standard lithium based grease.

3 Lubricate aerator drive chains with chain lubricant

spray (Part No. 523248).

4 Lubricate belt idler pivot with a standard lithium

based grease.

5 Lubricate clutch linkage bellcrank with a standard

lithium based grease.

6 Clean radiator intake screen.

7 Check radiator coolant level.

8 Check engine oil level.

LUBRICATION

1. Clutch Linkage

2. Belt Idler

3. Axle Yoke

4. Axle Yoke

5. Axle Yoke

⊗

CHART

8.2 LUBRICATION FITTINGS

There are five (5) lubrication fittings that should be lubri-

cated daily with a standard lithium based grease.

Three (3) fittings are located on the rear axle yoke

assemblies. Refer to Figure 12 for lubrication points.

NOTE: When lubricating the rear axle yoke assemblies,

the wheels should be off the ground and the weight

should be off the rear axle to allow proper lubrication

of the yoke.

One (1) fitting is located on the clutch linkage pivot tube,

and the fifth is located at the drive belt idler pivot.

The four (4) drive chains in the aerator head assembly

should be sprayed with chain lubricant, spray (Part No.

523248) each time the GA 60 is refueled, to greatly

extend chain life.

4242

FIGURE 12

1. Belt Idler Lube Fitting

2. Clutch Linkage Lube Fitting

3. Axle Yoke Lube Fittings (3)

8 MAINTENANCE

8.3 AIR CLEANER

This is a large capacity, dry type air cleaner with a

replaceable paper element.

8.4 CHECKING ELEMENT

Check element for damage, pin holes, etc. by placing a

light source such as a flashlight inside.

8.5 INSTALLING ELEMENT

1. Clean dust from inside of housing with a damp cloth.

BE SURE dust does not enter intake.

2. Check all gaskets to make sure they are not loose or

damaged.

3. Insert element into housing as shown in Figure 13.

4. Apply a light grease film to the nylon washer and

wing nut. Secure element with washer and wing nut.

NOTE: The dust collector empties automatically when

properly installed with collector pointing DOWN.

Refer to Figure 14 for proper positioning.

Figure 13

1. Filter Element

2. Filter Housing

Figure 14

1. Filter Assembly

2. Dust Collector

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Jacobsen 544913 Owner's manual

Brand: Jacobsen

Model: 544913

Category: Mini tillers

Type: Owner's manual

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Jacobsen 544913 Owner's manual

Jacobsen 544913 Owner's manual

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