Kubota AP-SSG2024 User manual
Table of Contents
Cover photo may show optional equipment not supplied
with standard unit.
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Language, please see your Kubota dealer.
Read the Operator’s Manual entirely. When you see this symbol,
the subsequent instructions and warnings are serious - follow
without exception. Your life and the lives of others depend on it!
!
Stump Grinder
AP-SSG2024
328-198MK
Operator’s Manual
Printed 2/8/23
78467
2/8/23AP-SSG2024 Stump Grinder 328-198MK
Machine Identification
Record your machine details in the log below. If you replace this manual, be sure to transfer this information to the new
manual.
If you, or the dealer, have added Options not originally ordered with the machine, or removed Options that were
originally ordered, the weights and measurements are no longer accurate for your machine. Update the record by
adding the machine weight and measurements provided in the Specifications & Capacities Section of this manual with
the Option(s) weight and measurements.
Dealer Contact Information
Model Number
Serial Number
Machine Height
Machine Length
Machine Width
Machine Weight
Delivery Date
First Operation
Accessories
Dealer Name:
Street:
City/State:
Telephone:
Email:
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Table of Contents
© Copyright 2023 All rights Reserved
Kubota provides this publication “as is” without warranty of any kind, either expressed or implied. While every precaution has been taken in the preparation of this manual, Kubota
assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained herein. Kubota reserves the right
to revise and improve its products as it sees fit. This publication describes the state of this product at the time of its publication, and may not reflect the product in the future.
Kubota is a registered trademark.
All other brands and product names are trademarks or registered trademarks of their respective holders.
Printed in the United States of America.
AP-SSG2024 Stump Grinder 328-198MK2/8/23
Table of Contents
Important Safety Information . . . . . . . . . . . . . . . 1
Safety at All Times . . . . . . . . . . . . . . . . . . . . . . . . . 1
Look for the Safety Alert Symbol . . . . . . . . . . . . . . . 1
Safety Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . 9
Owner Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Section 1: Pre-assembly & Set-up . . . . . . . . . 10
Power Machine Requirements . . . . . . . . . . . . . . . 10
Before you Start . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Torque Requirements . . . . . . . . . . . . . . . . . . . . . . 10
Dealer Preparations . . . . . . . . . . . . . . . . . . . . . . . 10
Lifting & Moving the Attachment . . . . . . . . . . . . . . 11
Port Identification . . . . . . . . . . . . . . . . . . . . . . . . . 11
Section 2: Excavator Assembly & Set-up . . . . 12
Compatible Kubota Excavators . . . . . . . . . . . . . . . 12
Install Bolt-on Mount . . . . . . . . . . . . . . . . . . . . . . . 12
Install Excavator Mount . . . . . . . . . . . . . . . . . . . . . 12
Install Excavator Hose Kit . . . . . . . . . . . . . . . . . . . 13
Connect Quick Attach Coupler . . . . . . . . . . . . . . . 14
Connect to Bucket Coupler . . . . . . . . . . . . . . . . . . 15
Connect Hydraulic Hoses . . . . . . . . . . . . . . . . . . . 16
Disconnect Quick Attach Coupler . . . . . . . . . . . . . 17
Disconnect from Bucket Coupler . . . . . . . . . . . . . . 18
Section 3: Skid Steer/Track Loader Assembly &
Set-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Install Skid Steer Mount . . . . . . . . . . . . . . . . . . . . 20
Install Skid Steer Hose Kit . . . . . . . . . . . . . . . . . . . 21
Connect to Skid Steer/Track Loader . . . . . . . . . . . 22
Connect Hydraulic Hoses . . . . . . . . . . . . . . . . . . . 23
Disconnect from Skid Steer/Track Loader . . . . . . . 24
Section 4: Compact Utility Loader Assembly &
Set-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Install CII Mount . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Install Hose Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Connect to Compact Loader . . . . . . . . . . . . . . . . . 28
Connect Hydraulic Hoses . . . . . . . . . . . . . . . . . . . 29
Disconnect from Compact Loader . . . . . . . . . . . . . 30
Section 5: Operating Instructions . . . . . . . . . . 31
Operating Checklist . . . . . . . . . . . . . . . . . . . . . . . 31
Operating Safety . . . . . . . . . . . . . . . . . . . . . . . . . 31
Shutdown Procedures . . . . . . . . . . . . . . . . . . . . . 32
Excavator Shutdown Procedure . . . . . . . . . . . . . 32
Skid Steer/Track Loader Shutdown Procedure . . 32
Compact Utility Loader Shutdown Procedure . . . 33
Transport Safety . . . . . . . . . . . . . . . . . . . . . . . . . 33
Pre-operation Inspection . . . . . . . . . . . . . . . . . . . 33
Stump Grinder Operation . . . . . . . . . . . . . . . . . . 34
Extension Spring Adjustment . . . . . . . . . . . . . . . 35
Section 6: Options . . . . . . . . . . . . . . . . . . . . . . 36
Power Machine Mount Options . . . . . . . . . . . . . . 36
Excavator Mount . . . . . . . . . . . . . . . . . . . . . . . . 36
Skid Steer Mount . . . . . . . . . . . . . . . . . . . . . . . . 36
Compact Loader CII Mount . . . . . . . . . . . . . . . . 36
Quick Coupler Bolt-on Mount Options . . . . . . . . . 37
Kubota U25 & U27 Bolt-on Mount . . . . . . . . . . . 37
Kubota U35 & Multi KX Bolt-on Mount . . . . . . . . 37
Kubota KX057 Excavator Bolt-on Mount . . . . . . 37
Pin Grabber Bolt-on Mount Option . . . . . . . . . . . 38
Kubota KX057 Pin Grabber Bolt-on Mount . . . . . 38
Hydraulic Hose Kit Options . . . . . . . . . . . . . . . . . 38
Excavator Hose Kit . . . . . . . . . . . . . . . . . . . . . . . 38
Skid Steer Hose Kit . . . . . . . . . . . . . . . . . . . . . . 38
Compact Loader Hose Kit . . . . . . . . . . . . . . . . . 39
Section 7: Maintenance . . . . . . . . . . . . . . . . . . 40
Cutting Wheel Maintenance . . . . . . . . . . . . . . . . 40
Maintain Carbide Teeth . . . . . . . . . . . . . . . . . . . 40
Rotate Carbide Teeth . . . . . . . . . . . . . . . . . . . 40
Replace Carbide Teeth . . . . . . . . . . . . . . . . . . 41
Remove/Install Tooth Holders . . . . . . . . . . . . . . 41
Tooth Holder Configuration . . . . . . . . . . . . . . . 41
Tooth Holder Components . . . . . . . . . . . . . . . 41
Chip Deflector Maintenance . . . . . . . . . . . . . . . . 42
Rear Deflector . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Small Deflector . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Large Deflector . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Long Term Storage . . . . . . . . . . . . . . . . . . . . . . . 43
Section 8: Specifications & Capacities . . . . . 44
Section 9: Features & Benefits . . . . . . . . . . . . 46
Section 10: Troubleshooting . . . . . . . . . . . . . . 47
Section 11: Torque Values Chart . . . . . . . . . . 48
Section 12: Warranty & Legal Disclaimer . . . 50
Table of Contents Continued
Parts Manual QR Locator
The QR (Quick Reference) code on the left
will take you to the Parts Manual for this
equipment. Download the appropriate
App on your smart phone, open the App,
point your phone on the QR code and
take a picture.
Dealer QR Locator
The QR code on the left will
link you to available dealers
for Kubota products. Refer to
Parts Manual QR Locator on
this page for detailed
instructions.
Table of Contents
2/8/23AP-SSG2024 Stump Grinder 328-198MK
See previous page for Table of Contents.
Important Safety Information
2/8/23 1
Important Safety Information
Listed below are common practices that may or may not be applicable to the products
described in this manual.
Safety Precautions for Children
Tragedy can occur if the operator is not
alert to the presence of children. Children
generally are attracted to attachments and
their work.
Never assume children will remain where
you last saw them.
Keep children out of the work area and
under the watchful eye of a responsible
adult.
Be alert and shut the attachment and power
machine down if children enter the work
area.
Never carry children on the power machine
or attachment. There is not a safe place for
them to ride. They may fall off and be run
over or interfere with the control of the
power machine.
Never allow children to operate the power
machine, even under adult supervision.
Never allow children to play on the power
machine or attachment.
Use extra caution when backing up. Before
the power machine starts to move, look
down and behind to make sure the area is
clear.
Safety at All Times
Careful operation is your best assurance
against an accident.
All operators, no matter how much
experience they may have, should
carefully read this manual and other
related manuals before operating the
power machine and this attachment.
Thoroughly read and understand the
“Safety Label” section. Read all
instructions noted on them.
Do not operate the equipment while under
the influence of drugs or alcohol as they
impair the ability to safely and properly
operate the equipment.
Operator should be familiar with all
functions of the power machine and
attachment and be able to handle
emergencies quickly.
Make sure all guards and shields
appropriate for the operation are in place
and secured before operating the
attachment.
Keep all bystanders away from equipment
and work area.
Start power machine from the driver’s seat
with steering levers and hydraulic controls
in neutral.
Operate power machine and controls from
the driver’s seat only.
Never dismount from a moving power
machine or leave power machine
unattended with engine running.
Do not allow anyone to stand between the
attachment and power machine while
connecting to the attachment.
Keep hands, feet, and clothing away from
power-driven parts.
While transporting and operating
equipment, watch out for objects overhead
and along side such as fences, trees,
buildings, wires, etc.
Store attachment in a safe and secure area
where children normally do not play. When
needed, secure attachment against falling
with support blocks.
Do not operate any hammer or mulching
equipment on an open cab machine or on
a machine with a tempered front glass
window/door. We strongly recommend use
of a polycarbonate front glass door/window
when operating any hammer or mulching
equipment.
Look for the Safety Alert Symbol
The SAFETY ALERT SYMBOL indicates there is a
potential hazard to personal safety and extra precaution
must be taken. When you see this symbol, be alert and
carefully read the message that follows it. Hazard
control, and accident prevention are dependent upon the
awareness, concern, prudence, and proper training of
personnel involved in the operation, transport,
maintenance, and storage of equipment.
!
Be Aware of Signal Words
A signal word designates a degree or level of hazard seriousness.
They are:
DANGER:
!
WARNING:
CAUTION:
!
!
Indicates a hazardous situation that, if not avoided, will
result in death or serious injury.
Indicates a hazardous situation that, if not avoided,
could result in death or serious injury.
Indicates a hazardous situation that, if not avoided,
may result in minor or moderate injury.
Be Aware of Special Notices
Special notices are intended to point out important and helpful
information that should be followed. They are usually placed inside a box.
They are:
Indicates that equipment or property damage could
result if instructions are not followed.
Indicates supplementary explanations that will be
helpful when using the equipment.
IMPORTANT:
NOTE:
Important Safety Information
2/8/23
2
Listed below are common practices that may or may not be applicable to the products
described in this manual.
Transport Safely
Comply with federal, state, and local
laws.
Use towing vehicle and trailer of
adequate size and capacity. Secure
equipment towed on a trailer with
chocks, tie downs, and chains.
IMPORTANT: Do not tow a load that
is more than double the weight of the
vehicle towing the load.
Sudden braking can cause a towed
trailer to swerve unexpectedly.
Reduce speed if towed trailer is not
equipped with brakes.
Avoid contact with any overhead
utility lines or electrically charged
conductors.
Always drive with attachment on end
of power machine arm low to the
ground.
Follow recommendations in the
power machine Operator’s Manual
when driving uphill or downhill and
when parking on an incline.
Maximum transport speed for an
attached equipment is 20 mph (32
km/h). DO NOT EXCEED. Never
travel at a speed which does not
allow adequate control of steering
and stopping. Some rough terrains
require a slower speed.
As a guideline, use the following
maximum speed weight ratios for
attached equipment:
20 mph (32 km/h) when weight of
attached equipment is less than or
equal to the weight of machine
towing the equipment.
10 mph (16 km/h) when weight of
attached equipment exceeds
weight of machine towing
equipment but not more than
double the weight.
Practice Safe Maintenance
Understand procedure before doing
work. Refer to the Operator’s Manual
for additional information.
Work on a level surface in a clean
dry area that is well-lit.
Lower attachment to the ground and
follow all shutdown procedures
before leaving the operator’s seat to
perform maintenance.
Do not work under any hydraulically
supported equipment. It can settle,
suddenly leak down, or be lowered
accidentally. If it is necessary to
work under the equipment, securely
support it with stands or suitable
blocking beforehand.
Use properly grounded electrical
outlets and tools.
Use correct tools and equipment for
the job that are in good condition.
Allow equipment to cool before
working on it.
Disconnect battery ground cable (-)
before servicing or adjusting
electrical systems or before welding
on equipment.
Inspect all parts. Make certain that
parts are in good condition &
installed properly.
Replace parts on this attachment
with genuine Kubota parts only. Do
not alter this attachment in a way
which will adversely affect its
performance.
Do not grease or oil attachment
while it is in operation.
Remove buildup of grease, oil, or
debris.
Always make sure any material and
waste products from the repair and
maintenance of the attachment are
properly collected and disposed.
Remove all tools and unused parts
from equipment before operation.
Dig Safe - Avoid
Underground Utilities
USA: Call 811
CAN: digsafecanada.ca
Always contact your local utility
companies (electrical, telephone,
gas, water, sewer, and others)
before digging so that they may
mark the location of any
underground services in the area.
Be sure to ask how close you can
work to the marks they positioned.
Handle
Chemicals Properly
Protective clothing should be
worn.
Handle all chemicals with care.
Follow instructions on container
label.
Agricultural chemicals can be
dangerous. Improper use can
seriously injure persons, animals,
plants, soil, and property.
Inhaling smoke from any type of
chemical fire can be a serious
health hazard.
Store or dispose of unused
chemicals as specified by the
chemical manufacturer.
Important Safety Information
2/8/23 3
Keep Riders Off
Machinery
Never carry riders on the power
machine or attachments.
Riders obstruct operator’s view
and interfere with the control of
the power machine.
Riders can be struck by objects
or thrown from the equipment.
Never use power machine or
attachment to lift or transport
riders.
Listed below are common practices that may or may not be applicable to the products
described in this manual.
Prepare for Emergencies
Be prepared if a fire starts.
Keep a first aid kit and fire
extinguisher handy.
Keep emergency numbers for
doctor, ambulance, hospital, and
fire department near phone.
911
Use Safety
Lights and Devices
A slow moving power machine
can create a hazard when driven
on public roads. They are difficult
to see, especially at night. Use
the Slow Moving Vehicle (SMV)
sign when on public roads.
Flashing warning lights and turn
signals are recommended
whenever driving on public roads.
Use Seat Belt and ROPS
Kubota recommends the use of a
CAB or roll-over-protective-
structures (ROPS) and seat belt
in almost all power machines.
Combination of a CAB or ROPS
and seat belt will reduce the risk
of serious injury or death if the
power machine should be upset.
If ROPS is in the locked-up
position, fasten seat belt snugly
and securely to help protect
against serious injury or death
from falling and machine
overturn.
Wear Personal Protective
Equipment (PPE)
Wear protective clothing and
equipment appropriate for the job
such as safety shoes, safety,
glasses, hard hat, dust mask,
and ear plugs.
Clothing should fit snug without
fringes and pull strings to avoid
entanglement with moving parts.
Prolonged exposure to loud noise
can cause hearing impairment or
hearing loss. Wear suitable
hearing protection such as
earmuffs or earplugs.
Operating a machine safely
requires the operator’s full
attention. Avoid wearing
headphones while operating
equipment.
Avoid High Pressure
Fluids
Escaping fluid
under pressure will
penetrate the skin or
eyes causing serious injury.
Relieve all residual pressure
before disconnecting hydraulic
lines or performing work on the
hydraulic system.
Make sure all hydraulic fluid
connections are properly
tightened/torqued and all
hydraulic hoses and lines are in
good condition before applying
pressure to the system.
Use a piece of cardboard or
wood, NOT BODY PARTS, to
check for suspected leaks.
Wear protective gloves and
safety glasses or goggles when
working with hydraulic systems.
DO NOT DELAY. If an accident
occurs, seek immediate
emergency medical care or
gangrene may result.
Important Safety Information
2/8/23
4
Skid Steer Shutdown
Reduce engine speed and shut-off
all power to the attachment.
Park on solid, level ground and
lower attachment until it is flat on
the ground or on non-concrete
support blocks.
Turn off engine. Do not remove
ignition key at this time.
Turn ignition key to the “RUN”
position. Relieve all hydraulic
pressure by moving both joysticks.
Turn ignition key to “OFF” and
remove to prevent unauthorized
starting.
Relieve all hydraulic pressures.
If included, raise seat bar and
move controls until both lock.
Wait for all components to stop
before leaving operator’s seat.
Use steps, grab-handles and
anti-slip surfaces when stepping
on and off the skid steer.
Listed below are common practices that may or may not be applicable to the products
described in this manual.
Excavator Shutdown
If engaged, disengage hydraulics
to the attachment.
Park on solid, level ground.
Lower attachment and dozer blade
until they are on the ground.
Idle engine and turn ignition key to
‘STOP’ position to shutoff engine.
Move lever lock(s) down to the
lock position.
Turn ignition key to “RUN” and
relieve hydraulic pressure to the
hydraulic system by operating
hydraulic levers. Refer to
Excavator Operator’s Manual.
Turn ignition key to “OFF” and
remove to prevent unauthorized
starting.
Face excavator while using
approved steps, grab-handles and
anti-slip surfaces when stepping
on and off the excavator.
Avoid crystalline Silica
(quartz) Dust
Because crystalline silica is a basic
component of sand and granite,
many activities at construction sites
produce dust containing crystalline
silica. Trenching, sawing, and boring
of material containing crystalline
silica can produce dust containing
crystalline silica particles. This dust
can cause serious injury to the
lungs (silicosis).
There are guidelines which should
be followed if crystalline silica
(quartz) is present in the dust.
Be aware of and follow OSHA
(or other local, State, or Federal)
guidelines for exposure to airborne
crystalline silica.
Know the work operations where
exposure to crystalline silica may
occur.
Participate in air monitoring or
training programs offered by the
employer.
Be aware of and use optional
equipment controls such as water
sprays, local exhaust ventilation,
and enclosed cabs with positive
pressure air conditioning if the
machine has such equipment.
Otherwise respirators shall be worn.
Where respirators are required, wear
a respirator approved for protection
against crystalline silica containing
dust. Do not alter respirator in any
way. Workers who use tight-fitting
respirators can not have beards/
mustaches which interfere with the
respirator seal to the face.
If possible, change into disposable
or washable work clothes at the
work site; shower and change into
clean clothing before leaving the
work site.
Do not eat, drink, use tobacco
products, or apply cosmetics in
areas where there is dust containing
crystalline silica.
Store food, drink, and personal
belongings away from the work
area.
Wash hands and face before eating,
drinking, smoking, or applying
cosmetics after leaving the exposure
area.
OFF
REMOVE
OFF
REMOVE
Stand-on Compact Loader
Shutdown
Reduce engine speed, park on
solid, level ground, disengage
auxiliary hydraulics and lower
attachment until it is flat on the
ground.
Turn off engine and turn off the
power switch to prevent
unauthorized starting.
Relieve all hydraulic pressures.
Wait for all components to stop
before leaving operator’s platform.
Carefully step down from the
operator’s platform.
Important Safety Information
2/8/23 5
Listed below are common practices that may or may not be applicable to the products
described in this manual.
Tire Safety
Tire changing
can be
dangerous
and must be
performed by
trained personnel
using the correct tools and
equipment.
Always properly match the wheel
size to the properly sized tire.
Always maintain correct tire
pressure. Do not inflate tires
above recommended pressures
shown in the Operator’s Manual.
When inflating tires, use a clip-on
chuck and extension hose long
enough to allow you to stand to
one side and NOT in front of or
over the tire assembly. Use a
safety cage if available.
Securely support the attachment
when changing a wheel.
When removing and installing
wheels, use wheel handling
equipment adequate for the
weight involved.
Make sure wheel bolts have been
tightened to the specified torque.
2/8/23
6
Table of Contents
AP-SSG2024 Stump Grinder 328-198MK
Safety Labels
Your Stump Grinder comes equipped with all safety labels in
place. They are designed to help you safely operate your
attachment. Read and follow their directions.
1. Keep all safety labels clean and legible.
2. Refer to this section for proper label placement. Replace
all damaged or missing labels. Order new labels from your
nearest Kubota dealer. To find your nearest dealer, visit
our dealer locator at www.landpride.com.
3. Some new equipment installed during repair requires
safety labels to be affixed to the replaced component as
76989
76992
specified by Kubota. When ordering new components make
sure the correct safety labels are included in the request.
4. Refer to this section for proper label placement.
To install new labels:
a. Clean surface area where label is to be placed.
b. Spray soapy water onto the cleaned area.
c. Peel backing from label and press label firmly onto the
surface.
d. Squeeze out air bubbles with edge of a credit card or
with a similar type of straight edge.
838-293C
Warning: Read Operator’s Manual - General Warning
1 Place
70243
838-295C
Danger: Rotating Blade Hazard
1 Place
73186
Introduction
2/8/23 9
Table of Contents
AP-SSG2024 Stump Grinder 328-198MK
Introduction
Owner Assistance
The Online Warranty Registration should be completed
by the dealer at the time of purchase. This information is
necessary to provide you with quality customer service.
The parts on your Stump Grinder have been specially
designed by Kubota/Land Pride and should only be
replaced with genuine Kubota parts. Contact a Kubota
dealer if customer service or repair parts are required.
Your Kubota dealer has trained personnel, repair parts,
and equipment needed to service this attachment.
Serial Number
For quick reference and prompt service, record model
and serial number on the inside cover page and again on
the warranty page. Always provide model number and
serial number when ordering parts and in all
correspondences with your Kubota dealer. For location
of your serial number plate, see Figure 1.
SSG2024 Serial Number Plate Location
Figure 1
Further Assistance
Your Kubota dealer wants you to be satisfied with your
new attachment. After having carefully read these
instructions, you will realize that much of the routine
maintenance can be done by yourself. If for any reason
you do not understand any part of this manual or are not
satisfied with the service received, the following actions
are suggested:
1. Discuss the matter with your dealership service
manager making sure that person is aware of any
problems you may have and has had the opportunity
to assist you.
2. If you are still not satisfied, seek out the owner or
general manager of the dealership, explain the
question/problem, and request assistance.
3. For further assistance write to:
Kubota by Land Pride
Service Department
1525 East North Street
P.O. Box 5060
Salina, KS. 67402-5060
E-mail address
lpservicedep[email protected]
76992
Kubota welcomes you to the growing family of new
product owners. This Stump Grinder has been designed
with care and built by skilled workers using quality
materials. Proper assembly, maintenance, and safe
operating practices will help you get years of satisfactory
use from this attachment.
Application
The Kubota SSG2024 Stump Grinder is a powerful, time
saving attachment geared toward contractors,
landscapers, and forestry departments looking to
efficiently grind down tree stumps of any size.
The SSG2024 can be operated up to 21 gpm (79 Lpm) of
continuous hydraulic flow, making this attachment
compatible with a wide range of power machines.
Additional versatility of the SSG2024 is demonstrated
with an impressive lineup of mounting options, making it
an appealing attachment for just about all power
machine owners and equipment rental yards.
Compatible power machines for the SSG2024 include
skid steers, track loaders, multiple Kubota branded mini
excavators, and compact utility loaders equipped with a
CII (common industry interface) hitch.
The cutting wheel measures 5/8" (16 mm) in thickness,
and 21" (53 cm) in diameter. Housed around the wheel
are 15 high quality Wearsharp® carbide teeth, delivering
a cutting diameter of 24" (61 cm), along with a cutting
depth of 10" (25 cm) below ground. Each carbide tooth
can be rotated into three positions, allowing for maximum
utilization of the tooth’s cutting edge, and ultimately
decreasing the frequency of replacing teeth.
See “Specifications & Capacities” on page 44 and
“Features & Benefits” on page 46 for additional
information.
Using This Manual
•This Operator’s Manual is designed to help familiarize
you with safety, assembly, operation, adjustments,
troubleshooting, and maintenance. Read this manual
and follow the recommendations to help ensure safe
and efficient operation.
•The information contained within this manual was
current at the time of printing. Some parts may change
slightly to assure you of the best performance.
•To order a new Operator’s or Parts Manual, contact
your authorized dealer. Manuals can also be
downloaded, free-of-charge, from our website at
www.landpride.com.
Terminology
“Right” or “Left” as used in this manual is determined by
the direction the operator faces while sitting looking
forward in the operator’s seat unless otherwise stated.
Section 1: Pre-assembly & Set-up
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AP-SSG2024 Stump Grinder 328-198MK
Power Machine Requirements
The SSG2024 Stump Grinder is designed to attach to
excavators, skid steers, track loaders and compact utility
loaders with the following requirements:
Excavators
KX057 . . . . . . . . . . . . . . . . 5-ton pin grabber mount
All compatible models¹ . . . . . .Quick coupler mount
¹(Refer to page 12 for compatible models.)
Skid Steers & Track Loaders
Hitch type . . . . . . Quick attach, (meets ISO 24410)
Rear-view mirror . . . . . . . . . . . . . . . Recommended
Compact Utility Loaders
Hitch type . . . . . . . . . . . . . . . . . CII² (Quick-Attach)
²(CII: Common Industry Interface)
Hydraulic Requirements
Hydraulic outlets . . . . . . . . . . . . .1 male & 1 female
Max. hydraulic pressure. . . . . . . 3,500 psi (24 MPa)
Max. hydraulic flow rate . . . . . . . . 21 gpm (79 Lpm)
Before you Start
Make sure the intended power machine of use conforms
to the “Power Machine Requirements” stated above.
Read and understand the Operator’s Manual for your
SSG2024 Stump Grinder. An understanding of how it
works will aid in the assembly and setup of your
attachment.
WARNING
!
To avoid serious injury or death:
•Allow only persons to operate this equipment who have
fully read and comprehended this manual, and who have
been properly trained in the safe operation of this
attachment. Serious injury or death can result from the
inability to read, understand, and follow instructions
provided in this manual.
•Consult your power machine Operator’s Manual for
operating capacity, lifting capacity, and operating
specifications. Exceeding rated capacities and
specifications can result in loss of control, roll-over or other
serious hazard.
IMPORTANT: Some power machines have hydraulic
flow settings that exceed 21 gpm (79 Lpm). Such
power machines will require the use of a low flow
setting to ensure the SSG2024 is not operated
above the “Max. hydraulic flow rate” requirement.
Section 1: Pre-assembly & Set-up
Torque Requirements
Refer to “Torque Values Chart” on page 48 to determine
correct torque values when tightening hardware.
Dealer Preparations
This Stump Grinder has been mostly assembled at the
factory. Some additional preparations will be necessary
to finish assembling the attachment and attach it to the
customer’s power machine. Make sure the intended
power machine conforms to the “Power Machine
Requirements” listed on this page.
Read and understand the Operator’s Manual for your
SSG2024 Stump Grinder. An understanding of how it
works will aid in the final assembly and setup.
Go through the “Pre-assembly Checklist” on this page
before finalizing assembly of the Stump Grinder. Speed
up your assembly task and make the job safer by having
all needed parts and equipment readily at hand.
Pre-assembly Checklist
Check Reference
Have a fork lift, loader, or lift hoist with properly sized chains
capable of lifting and supporting the equipment on hand.
Have a minimum of two people available during assembly.
Make sure all major components and loose
parts are shipped with the attachment.
Operator’s
Manual
Double check to make sure all parts, fasteners
and pins are installed in the correct location to
lessen the chance of using a bolt incorrectly.
Refer to the Parts Manual if unsure.
NOTE: All assembled hardware from the
factory has been installed in the correct
location. Remember location of a part or
fastener if removed. Keep parts separated.
Operator’s
Manual
328-198MK
Parts Manual
328-198PK
Make sure working parts move freely, bolts are
tight & cotter pins are spread.
Operator’s
Manual
Make sure all safety labels are correctly
located and legible. Replace if damaged. Page 6
Review procedure and alert notices for “Lifting
& Moving the Attachment”. Page 11
Section 1: Pre-assembly & Set-up
2/8/23 11
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AP-SSG2024 Stump Grinder 328-198MK
Lifting & Moving the Attachment
WARNING
!
To avoid serious injury or death:
•Inspect all lifting equipment before use. Do not use twisted
or damaged lifting equipment.
•Do not allow anyone to pass below the lifted load, and do
not lift load above people.
•Do not lift people and never ride the hoisted load.
•Lift the load carefully, especially when there is still slack
present in lifting devices.
•Be aware of pinch points such as components coming
against one another or passing by one another. Keep body
extremities away from pinch points.
•Lift load a few centimeters and verify it is secured and well
balanced before proceeding.
•Never leave suspended load unattended. Maintain load
control at all times.
•Do not store attachment in an upright position with its
cutting wheel perpendicular to the ground. It could fall over,
resulting in personal injury and/or damaged equipment.
Refer to Figure 1-1:
1. Ensure lifting chains, hooks, straps, and all other
lifting equipment being used are in good condition
and of correct capacity.
2. Secure lifting device to lug (#1) or customer supplied
shackle (#2). Make sure shackle pin (#3) is secured
from falling out of the clevis before lifting.
3. Slowly raise hoist to eliminate slack from the lifting
device.
4. Once slack is eliminated, slightly raise the Stump
Grinder off the ground, then verify the load is secured
and balanced.
5. Raise the attachment just high enough off the ground
for transporting.
6. Slowly lower attachment to rest on the face of its
motor guard (#4).
NOTE: Use a lifting hoist to move the Stump Grinder
when no mount is attached for connection. If no hoist
is available, place the Stump Grinder on a pallet to
easily move the attachment with a pallet fork.
IMPORTANT: Lift stump grinder with lug (#1). If lug
hole is too small to access, secure shackle (#2) to
the lug with shackle pin (#3) and lift grinder using the
shackle. Shackle and shackle pin are supplied by the
customer.
IMPORTANT: The SSG2024 is not a free standing
attachment when disconnected from a power
machine. Always lay the Stump Grinder on the face
of the motor guard when connecting, disconnecting,
moving, and storing the attachment.
Lifting Points
Figure 1-1
Port Identification
It’s important to understand the designation of the two
ports being used on the attachment’s hydraulic motor to
ensure the cutting edge of the carbide teeth are leading
in rotation. Correct hydraulic hose connection will result
in the cutting wheel rotating clockwise when observed
from the side of the attachment with the extension spring.
Refer to Figure 1-2:
1. Port “HP” on the attachment’s hydraulic motor is
designated to connect to the AUX pressure port of
the intended power machine.
2. Port “LP” on the attachment’s hydraulic motor is
designated to connect to the AUX return port of the
intended power machine.
Port Identification
Figure 1-2
78015
NOTE: Port identification letters have been
engraved next to each port on the hydraulic motor.
Port “LP” Port “HP”
Return Pressure
78020
Port “HP”
Port “LP”
Section 2: Excavator Assembly & Set-up
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AP-SSG2024 Stump Grinder 328-198MK
This section provides detailed instructions for preparing
the SSG2024 Stump Grinder for use with a wide range of
compatible Kubota branded excavators. Refer to the list
below to see which models are compatible.
If attaching the Stump Grinder to a skid steer or track
loader, refer to “Section 3: Skid Steer/Track Loader
Assembly & Set-up” on page 20. If attaching the Stump
Grinder to a compact loader, refer to“Section 4:
Compact Utility Loader Assembly & Set-up” on page
26.
Install Bolt-on Mount
Refer to Figure 2-1:
1. Before securing bolt-on mount (#1) to excavator
mount (#2), ensure their mating faces are void of any
obstructive debris.
2. Secure bolt-on mount (#1) to excavator mount (#2)
as shown or rotated 180o with four 3/4-10 x 2 1/4 GR5
bolts (#3), flat washers (#4), and hex locknuts (#5).
3. Tighten fasteners to the correct torque by referring to
“Section 11: Torque Values Chart” on page 48.
Bolt-on Mount Installation (Shown with U27 mount)
Figure 2-1
Compatible Kubota Excavators
U25 U27 U35
U48 U55 KX033
KX040 KX057 KX71
NOTE: This procedure is applicable to all available
bolt-on mounting options for the SSG2024.
NOTE: Bolt-on mount (#1) can be installed as
shown or rotated 180o. If installed as shown, the
excavator must move backward while grinding the
stump. If the mount is rotated 180o, the excavator
must move forward while grinding the stump.
NOTE: All excavator bolt-on mounts come with six
each of bolts, washers, and locknuts. Store extra
fasteners for safe keeping.
78030
Extension Spring
Mounting Hole
Open Puck
Install Excavator Mount
Refer to Figure 2-2 on page 13:
1. Use a hoist and lug (#13) to lift the Stump Grinder.
Refer to “Lifting & Moving the Attachment” on
page 11 for detailed instructions.
2. Position Stump Grinder to rest on motor guard (#1)
and a solid, non-concrete support (A). Support (A)
should support center of mounting holes (#4)
approximately 11" to 12" (28 to 30 cm) off the ground.
3. Using a hoist and lifting strap, pick up excavator
mount (#2) by its cross tube (#3).
4. Lower mount (#2) to align its pivot-pin holes (#14) to
mounting holes (#4) on the Stump Grinder.
5. Attach excavator mount (#2) to the Stump Grinder by
inserting pivot-pin (#5) through the aligned pivot
points (#4 & #14). Make sure pivot pin passes
through flanged bushings (#7) and washers (#8) as
shown.
6. With flat washers (#8) against bushings (#7), secure
pivot-pin (#5) in place with two hairpin
cotters (#6).
7. Spread ends of hairpin cotters (#6) to secure pivot-
pin (#5). Refer to Detail A in Figure 2-2.
Refer to Figure 2-3 on page 13:
8. Hook extension spring (#12) onto spring retainer
tab (#13).
9. Hook 5/8-11x6 GR2 spade bolt (#10) onto the other
end of extension spring (#12), then thread 5/8-11
flange hex nut (#9A) approximately 3" (8 cm) onto
spade bolt (#10).
10. Insert spade bolt (#10) through hole on underside of
cross tube (#3), then secure spade bolt to cross tube
with a second 5/8-11 flange hex nut (#9B).
11. Tighten flange hex nut (#9A) first. Then tighten flange
hex nut (#9B) to the correct torque value.
12. Secure flange hex nut (#9B) with a 5/8-11 jam
nut (#11). Tighten jam nut (#11) to the correct torque.
IMPORTANT: Do not install excavator mount with the
SSG2024 Stump Grinder standing upright. It will fall
unexpectedly, as it is not a free standing attachment
when disconnected from a power machine.
NOTE: Flanged bushings (#7) are shipped installed.
If they should slide out while inserting pivot pin (#5),
reinsert them in their respective mounts (#4).
NOTE: The location of flange hex nut (#9A) on the
spade bolt determines the tension of the extension
spring. To increase tension, thread nut (#9A) closer
to the head of spade bolt (#10). To decrease tension,
thread nut (#9A) away from head of spade bolt (#10).
Section 2: Excavator Assembly & Set-up
Section 2: Excavator Assembly & Set-up
2/8/23 13
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AP-SSG2024 Stump Grinder 328-198MK
Excavator Mount Installation
Figure 2-2
Extension Spring Installation
Figure 2-3
Install Excavator Hose Kit
To the Stump Grinder Hydraulic Motor
Refer to Figure 2-4 & Figure 2-5:
1. Install and tighten female coupler (#1) onto the non-
swivel end of one of the hydraulic hoses (#3) from the
hose kit.
2. Install and tighten male coupler (#2) onto the non-
swivel end of the remaining hydraulic hose (#3) from
the hose kit. Set both hoses aside for now.
3. Remove shipping plugs from ports “LP” and “HP” of
hydraulic motor (#5).
4. Install and tighten both 7/8 adapters (#4) into ports
“LP” and “HP”.
Detail A
78032
78035
5. Attach swivel end of hydraulic hose with female
coupler (#1) to adapter (#4) installed into port “HP”.
6. Attach swivel end of hydraulic hose with male
coupler (#2) to adapter (#4) installed into port “LP”.
Excavator Hose Kit Installation
Figure 2-4
To the Excavator AUX Ports
7. Apply teflon tape to the pipe threads of both
adapters (#6), then install adapters (#6) to AUX ports
on the left and right side of the excavator’s dipper
arm. Tighten both adapters at this time.
8. Install and tighten remaining male coupler (#2) from
the hose kit to the excavator AUX pressure port.
9. Install and tighten remaining female coupler (#1)
from the hose kit to the excavator AUX return port.
Quick Coupler Installation
Figure 2-5
NOTE: Port identification letters have been
engraved next to each port on the hydraulic motor.
78037
Port “LP”
Port “HP”
IMPORTANT: Figure 2-5 does not indicate which
side of the dipper arm the AUX return and pressure
ports are on. Refer to the excavator Operator’s
Manual to determine which AUX port is which.
Excavator
Dipper arm
AUX port AUX port
78044
Section 2: Excavator Assembly & Set-up
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AP-SSG2024 Stump Grinder 328-198MK
Connect Quick Attach Coupler
DANGER
!
To avoid serious injury or death:
•A crushing hazard exists while connecting and
disconnecting the attachment. Do not allow anyone to stand
between attachment and power machine while approaching
or backing away from the attachment. Do not operate
controls including lift, extend, and swing while someone is
near the power machine and/or attachment.
WARNING
!
To avoid serious injury or death:
•Make sure the coupler housings are free of obstructions
such as mud, excess dirt, rocks and ice. Coupler
engagement and disengagement may be impeded and could
potentially create an unsafe connection for the attachment.
•Make sure the attachment is properly connected to the
excavator arm. The coupler on the arm must be secured to
the attachment’s mount with the coupler’s lock pin fully
inserted and secured with its linchpin. An improperly
connected attachment can fall or be thrown from the
excavator arm.
•Never attempt to reposition the attachment on the
excavator’s arm with the attachment off the ground. A
crushing and/or pinch point hazard exists between coupler
and attachment. Keep hands and fingers clear.
Refer to Figure 2-6 & Figure 2-7:
1. Check for and remove all debris from the interior of
bolt-on mount (#1) and quick attach coupler (A).
2. Remove linchpin (B), then pull lock pin (C) from quick
attach coupler (A).
3. Ensure the Stump Grinder’s hydraulic hoses are
clear of the excavator’s approach path.
4. From the operator’s seat, start excavator, then align
dipper arm with bolt-on mount (#1).
5. Adjust and position dipper arm to be vertical, with
quick attach coupler (A) horizontal to the ground.
IMPORTANT: Be mindful of the distance between
the “bucket” pins. If this distance is too small, there
is potential risk of contact between the Stump
Grinder and dipper arm when in cylinder-end
position, causing damage to cylinder or dipper arm.
NOTE: Customer is responsible for supplying the
quick attach coupler, lock pin, and linchpin.
IMPORTANT: When connecting to an excavator,
approach from the attachment’s cutting wheel side.
IMPORTANT: Use caution maneuvering the dipper
arm and quick attach coupler during Connection.
Dragging the excavator components against the
attachment may result in damaged equipment.
6. Adjust dipper arm and quick attach coupler (A) to
align and seat rear coupler pucks (D) within
slots (#1A).
Connect Quick Attach Coupler to Bolt-on Mount
Figure 2-6
7. Rotate quick attach coupler (A) down and back until
coupler pucks (E) are fully seated in slots (#1B).
8. Once both sets of coupler pucks (D & E) are fully
seated, slightly raise mount (#1) and Stump Grinder
off the ground, then curl coupler (A) to the most
vertical position safely allowed by the attachment.
9. Without lowering the Stump Grinder, shutdown the
excavator before dismounting. Refer to “Excavator
Shutdown Procedure” on page 32.
10. Insert coupler lock pin (C) through the aligned lock
pin holes (a & b) of mount (#1) and quick attach
coupler (A). Secure lock pin (C) with linchpin (B).
Pin Quick Attach Coupler to Bolt-on Mount
Figure 2-7
78042
Excavator
approach
78064
Section 2: Excavator Assembly & Set-up
2/8/23 15
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AP-SSG2024 Stump Grinder 328-198MK
Connect to Bucket Coupler
DANGER
!
To avoid serious injury or death:
•A crushing hazard exists while connecting and
disconnecting the attachment. Do not allow anyone to stand
between attachment and power machine while approaching
or backing away from the attachment. Do not operate
controls including lift, extend, and swing while someone is
near the power machine and/or attachment.
WARNING
!
To avoid serious injury or death:
•Ensure the interior of the bucket coupler housing is free of
obstructions and debris such as mud, excess dirt, rocks and
ice. Coupler engagement and disengagement may be
impeded and could potentially create an unsafe condition if
coupler is obstructed.
•Make sure the attachment is properly connected to the
excavator arm. The coupler on the arm must be secured to
the attachment’s mount with the coupler’s lock pin fully
inserted and secured with its linchpin. An improperly
connected attachment can fall or be thrown from the
excavator arm.
•Never attempt to reposition the attachment on the
excavator’s arm with the attachment off the ground. A
crushing and/or pinch point hazard exists between coupler
and attachment. Keep hands and fingers clear.
Refer to Figure 2-8 & Figure 2-9:
1. Check for and remove all debris from bucket coupler
slots (a & b), and bucket mounting pins (#1A & #1B).
2. Ensure the Stump Grinder’s hydraulic hoses are
clear of the excavator’s approach path.
3. From the operator’s seat, start excavator. If installed,
retract thumb’s hydraulic cylinder to fully raise
hydraulic thumb for clearance purposes.
4. If attached, disconnect bucket from coupler (A) onto
a flat, level surface.
5. Align excavator and its dipper arm with the
attachment’s pin grabber mount (#1).
IMPORTANT: This connection procedure should
only be referred to if the 5-ton pin grabber bolt-on
mount is installed onto the Stump Grinder’s
excavator mount.
IMPORTANT: Be mindful of the distance between
the “bucket” pins. If this distance is too small, there
is potential risk of contact between the Stump
Grinder and dipper arm when in cylinder-end
position, causing damage to cylinder or dipper arm.
IMPORTANT: When connecting to an excavator,
approach from the attachment’s cutting wheel side.
6. Adjust and position dipper arm to be vertical, with
bucket coupler (A) angled downward at
approximately 45 degrees to the ground.
7. Adjust dipper arm and bucket coupler (A) to align and
seat top pin (#1A) within bucket coupler slots (a).
Connect Bucket Coupler to Pin Grabber Mount
Figure 2-8
8. Once pin (#1A) is fully seated within coupler slots (a),
rotate bucket coupler (A) down and back until
pin (#1B) is fully seated within coupler slots (b).
Connect Bucket Coupler to Pin Grabber Mount
Figure 2-9
9. With both pins (#1A & #1B) properly seated within
bucket coupler slots (a & b), engage the excavator’s
coupler-locking mechanism to secure coupler (A) to
pin grabber mount (#1).
IMPORTANT: Use caution maneuvering the dipper
arm and bucket coupler during connection. Dragging
the excavator components against the attachment
may result in damaged equipment.
78151 Excavator
approach
78153 Mount (#1) side plate
rendered transparent.
Section 2: Excavator Assembly & Set-up
2/8/23
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AP-SSG2024 Stump Grinder 328-198MK
Connect Hydraulic Hoses
WARNING
!
To avoid serious injury or death:
•Hydraulic fluid under high pressure will penetrate the skin
or eyes causing serious injury. Wear protective gloves and
safety glasses or goggles when working with hydraulic
systems. Use a piece of cardboard or wood, rather than
hands, when searching for leaks. If an accident occurs, seek
immediate emergency medical care or gangrene may result.
DO NOT DELAY.
•Shutdown power machine and release all hydraulic
pressure to the equipment before connecting or
disconnecting hydraulic hoses to or from the power
machine.
•Make sure hydraulic hoses are properly routed without
twists to prevent becoming stretched, pinched, or kinked. A
damaged hydraulic hose can burst and leak hydraulic fluid.
Refer to Figure 2-10:
1. Secure Stump Grinder to the excavator coupler
before connecting hydraulic hoses by referring to:
a. Page 14 for connecting to a quick attach coupler.
b. Page 15 for connecting to a bucket coupler.
2. Ensure all hydraulic pressure has been relieved from
the excavator auxiliary lines.
3. Clean the attachment’s couplers (#1A & #2B) and
excavator’s AUX couplers (#2A & #1B) of dirt and
foreign contaminants.
4. Connect female coupler (#1A) to male coupler (#2A).
Ensure hydraulic hose from port “HP” is connected to
the AUX pressure port.
5. Attach male coupler (#2B) to female coupler (#1B).
Ensure hydraulic hose from port “LP” is connected to
the AUX return port.
6. Return to the operator’s seat, then start the
excavator.
7. Carefully raise the attachment, orienting its cutting
wheel to be perpendicular to the ground.
8. Fully extend and retract the curl cylinder to ensure
the hydraulic hoses are not being pinched or
stretched.
IMPORTANT: Figure 2-10 does not indicate which
side of the dipper arm the AUX return and pressure
ports are on. Refer to the excavator Operator’s
Manual to determine which AUX port is which.
IMPORTANT: Hose routing is the responsibility of
the owner/operator. Pinched and/or stretched hoses
are not covered under the warranty.
Connect Hydraulic Hoses
Figure 2-10
From port
“HP”
From port
“LP”
AUX port AUX port
Excavator
Dipper arm
78065
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