Kubota AP-SSG2524 User manual

Table of Contents
Cover photo may show optional equipment not supplied
with standard unit.
For an Operator’s Manual and Decal Kit in French
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-SSG2524
328-215MK
Operator’s Manual
Printed 11/13/19
xxxxx37891

11/13/19AP-SSG2524 Stump Grinder 328-215MK
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
Name:
Street:
City/State:
Telephone:
Email:
WARNING: Cancer and reproductive harm - www.P65Warnings.ca.gov
!
California Proposition 65

Table of Contents
© Copyright 2019 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.
11/13/19 AP-SSG2524 Stump Grinder 328-215MK
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
Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Owner Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Further Assistance . . . . . . . . . . . . . . . . . . . . . . . . 9
Section 1: Assembly & Set-up . . . . . . . . . . . 10
Skid Steer Requirements . . . . . . . . . . . . . . . . . . . 10
Torque Requirements . . . . . . . . . . . . . . . . . . . . . . 10
Before You Start . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Customer Supplied Quick Couplers . . . . . . . . . . . 10
Skid Steer Hook-up . . . . . . . . . . . . . . . . . . . . . . . . 10
Hydraulic Hose Hook-up . . . . . . . . . . . . . . . . . . . . 11
Solenoid Hook-up . . . . . . . . . . . . . . . . . . . . . . . . . 12
Check Equipment Clearances . . . . . . . . . . . . . . . . 13
Section 2: Adjustments . . . . . . . . . . . . . . . . . 14
Skid Shoe Adjustment . . . . . . . . . . . . . . . . . . . . . . 14
Section 3: Operating Procedures . . . . . . . . . 15
Operating Checklist . . . . . . . . . . . . . . . . . . . . . . . . 15
General Inspection . . . . . . . . . . . . . . . . . . . . . . . . 15
Operating Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Transport Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Stump Grinder Operation . . . . . . . . . . . . . . . . . . . 17
Unhooking the Stump Grinder . . . . . . . . . . . . . . . . 18
General Operating Instructions . . . . . . . . . . . . . . . 19
Section 4: Options . . . . . . . . . . . . . . . . . . . . . 20
Electrical Control Harness (Optional) . . . . . . . . . . 20
Control Harness With Deutsch 14 Pin Plug . . . . 20
Control Harness With Deutsch 2 Pin Plug . . . . . 21
Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . 22
Initial Preparations . . . . . . . . . . . . . . . . . . . . . . . . 22
Mount Control Box (#2) in Cab . . . . . . . . . . . . . . . 22
Connect to Power . . . . . . . . . . . . . . . . . . . . . . . . . 22
Route Wire Harness (#3) . . . . . . . . . . . . . . . . . . . . 22
Hook-up Solenoid Harness (#4) . . . . . . . . . . . . . . 23
Control Harness With 2 Eyelets . . . . . . . . . . . . . 25
Initial Preparations . . . . . . . . . . . . . . . . . . . . . . . . 25
Route Wire Harness (#1) . . . . . . . . . . . . . . . . . . . . 26
Route Harness (#1) Along Loader Arm . . . . . . . 26
Rout Harness (#1) into Engine Room . . . . . . . . . 27
Route Harness (#2) & Power Cord (#3) . . . . . . . . . 27
Route Harnesses (#2 & #3) Through the Cab . . 27
Route Harness (#2) to Engine Room . . . . . . . . . 28
Route Power Cord (#3) to Engine Room . . . . . . 28
Mount Control Box (#6) in Cab . . . . . . . . . . . . . . . 28
Hook-up Solenoid Harness (#4) . . . . . . . . . . . . . . 30
CTL/SS Coupler . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Flat Face Couplers . . . . . . . . . . . . . . . . . . . . . . . . 30
Section 5: Maintenance & Lubrication . . . . . 31
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Skid Steer Maintenance . . . . . . . . . . . . . . . . . . . . 31
Cutting Wheel Maintenance . . . . . . . . . . . . . . . . . 31
Long-Term Storage . . . . . . . . . . . . . . . . . . . . . . . . 32
Lubrication Points . . . . . . . . . . . . . . . . . . . . . . . . . 33
Articulate Pivot Point . . . . . . . . . . . . . . . . . . . . . 33
Tilt Pivot Point . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Section 6: Specifications & Capacities . . . . . 34
Section 7: Features & Benefits . . . . . . . . . . . 35
Section 8: Troubleshooting . . . . . . . . . . . . . . 36
Section 9: Torque Values Chart . . . . . . . . . . . 37
Section 10: Warranty & Legal Disclaimer . . . 38

Table of Contents Continued
Parts Manual QR Locator
The QR (Quick Reference) code on the
cover and to 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
11/13/19AP-SSG2524 Stump Grinder 328-215MK
See previous page for Table of contents.

Important Safety Information
11/13/19 1
Important Safety Information
Listed below are common practices that may or may not be applicable to the products
described in this manual.

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, or have the
manuals read to them, 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 skid steer 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 skid steer from the driver’s
seat with steering levers and
hydraulic controls in neutral.
Operate skid steer and controls
from the driver’s seat only.
Never dismount from a moving
skid steer or leave skid steer
unattended with engine running.
Do not allow anyone to stand
between attachment and skid
steer while hooking-up.
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 an area where
children normally do not play.
When needed, secure attachment
against falling with support blocks.
OFF
REMOVE
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 skid steer/track loader 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.
Skid Steer Shutdown
And Storage
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 support blocks.
Turn off engine, and remove
switch key 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.
Detach and store attachment in an
area where children normally do
not play. Secure attachment by
using blocks and supports.
Look for the Safety Alert Symbol
The SAFETY ALERT SYMBOL indicates there is a
potential hazard to personal safety involved and extra
safety precaution must be taken. When you see this
symbol, be alert and carefully read the message that
follows it. In addition to design and configuration of
equipment, 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. The
signal words are:
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.
WARNING
CAUTION
!
!
DANGER
!

Important Safety Information
11/13/19
2
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.
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.
Sudden braking can cause a towed
trailer to swerve and upset. Reduce
speed if towed trailer is not equipped
with brakes.
Avoid contact with any overhead
utility lines or electrically charged
conductors.
Always drive with load on end of
loader arms low to the ground.
Always drive straight up and down
steep inclines with heavy end of skid
steer on the “uphill” side.
Engage park brake when stopped on
an incline.
Maximum transport speed for an
attached equipment is 20 mph. 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 when weight of attached
equipment is less than or equal to
the weight of machine towing the
equipment.
10 mph when weight of attached
equipment exceeds weight of
machine towing equipment but not
more than double the weight.
IMPORTANT: Do not tow a load that
is more than double the weight of the
vehicle towing the load.
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 hydraulic
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 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 the equipment before
operation.
Tire Safety
Tire changing can be dangerous
and must be performed by
trained personnel using the
correct tools and equipment.
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.

Important Safety Information
11/13/19 3
These 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
Avoid High
Pressure Fluids Hazard
Escaping fluid under pressure
can penetrate the skin 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 tight and all
hydraulic hoses and lines are in
good condition before applying
pressure to the system.
Use a piece of paper or
cardboard, 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, see a doctor familiar with
this type of injury immediately.
Any fluid injected into the skin or
eyes must be treated
within a few hours or
gangrene may
result.
Wear Personal Protective
Equipment (PPE)
Wear protective clothing and
equipment appropriate for the job
such as safety shoes, safety
glasses, hard hat, 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 equipment safely
requires the operator’s full
attention. Avoid wearing
headphones while operating
equipment.
Use Safety
Lights and Devices
Slow moving tractors, skid steers,
and self-propelled machines 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.
Keep Riders Off
Machinery
Never carry riders on skid steer
or attachment.
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 skid steer or
attachment to lift or transport
riders.
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.

Important Safety Information
11/13/19
4
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.
Listed below are common practices that may or may not be applicable to the products
described in this manual.
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
11/13/19 5
This page left blank intentionally.

Important Safety Information
Table of Contents
11/13/19AP-SSG2524 Stump Grinder 328-215MK
6
37891
35329
37891
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
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.
818-339C
Danger! High Pressure Hazard
Important Safety Information

Important Safety Information
Table of Contents
11/13/19 AP-SSG2524 Stump Grinder 328-215MK 7
848-088C
Danger! Guard Missing
37891
35329
35329
35330
838-107C
Danger! Thrown Object Hazard (3-places)
818-798C
Danger! Pinch Point Hazard (2-places)

Important Safety Information
Table of Contents
11/13/19AP-SSG2524 Stump Grinder 328-215MK
8
37891
37891
838-293C
Warning! Read Operator’s Manual
838-295C
Danger! Rotating Blade Hazard

Introduction
Table of Contents
11/13/19 AP-SSG2524 Stump Grinder 328-215MK 9
Your Kubota dealer has trained personnel, repair parts,
and equipment needed to service the 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.
Serial Number Plate Location
Figure 1
Further Assistance
Your Kubota dealer wants you to be satisfied with your
new attachment. 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 any problems you have with your attachment
with your dealership service personnel so they can
address the problem.
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]
35328
Introduction
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 SSG2524 Stump Grinder has uses and
applications with contractors, landscapers, and forestry
departments. Skid steer mounted, this Stump Grinder
turns large stumps into small chips.
It features durable carbide teeth mounted to a 1/2" cutting
wheel that spins up to 1,100 rpm. Fully controllable from
inside the cab, this unit has a maximum cutting arc of 55
degrees and depth of 8" below ground.
For additional information and performance enhancing
options, see “Specifications & Capacities” on page 19
and “Features & Benefits” on page 20.
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
facing the direction the machine will operate while in use
unless otherwise stated.
Definitions
Owner Assistance
The dealer should complete the Online Warranty
Registration 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.
IMPORTANT: A special point of information related
to the following topic. Kubota’s intention is this
information must be read & noted before continuing.
NOTE: A special point of information that the
operator should be aware of before continuing.

Section 1: Assembly & Set-up
Table of Contents
11/13/19AP-SSG2524 Stump Grinder 328-215MK
10
Section 1: Assembly & Set-up
Skid Steer Requirements
The Stump Grinder is designed to attach to a universal
quick attach mounting system. Consult the skid steer
Operator’s Manual for operating capacity, lifting capacity,
and operating specifications. They will vary from unit to
unit. Do not exceed the rated capacities and
specifications of the skid steer.
WARNING
!
To avoid serious injury or death:
Lightweight power machines may need weight added to the
rear to maintain steering control and prevent forward tipping
or side tipping caused by a heavy front load. Consult your
power machine Operator’s Manual to determine proper
weight requirements and maximum weight limitations.
Torque Requirements
Refer to “Torque Values Chart” on page 37 to determine
correct torque values when tightening hardware.
Before You Start
Make sure that the intended skid steer conforms to the
requirements provided on this page. Also, read and
understand this Operator’s Manual for your Stump
Grinder. An understanding of how it works will aid in its
assembly and set-up.
The Stump Grinder is shipped fully assembled except for
the optional quick disconnect hose couplers and wire
harness. See “Section 4: Options” on page 20 for
detailed descriptions of options.
Go through the Set-up Checklist before preparing the
Stump Grinder for field use. To speed up your set-up task
and make the job safer, have all needed parts and
equipment readily at hand.
Set-up Checklist
Check Reference
Make sure all major components and
loose parts are shipped with the
attachment.
Assembly
& Set-up
Double check to make sure all parts,
fasteners, and pins are installed in the
correct location. 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
328-215MK
Parts
Manual
328-215PK
Make sure working parts move freely,
bolts are tight & cotter pins are spread.
Operator’s
Manual
Make sure all grease fittings are in place
and lubricated. Page 33
Make sure all safety labels are correctly
located and legible. Replace if damaged. Page 6
Customer Supplied Quick Couplers
Refer to Figure 1-1 on page 11:
4. Thread hydraulic hoses (#1, #2, & #12) through hose
loops (#5, #6, #7, & #8).
5. Consult your skid steer Operator’s Manual to
determine which hydraulic line on your attachment is
under pressure. Select customer supplied male (#4) or
female (#3) quick disconnect coupler that will mate
with your attachment’s pressure line coupling.
6. Screw selected coupler to line (#1) until tight.
7. Screw remaining coupler to line (#2) until tight.
8. Screw case drain coupler to line (#12) until tight.
9. If available, tie hydraulic hoses (#1, #2, & #12) together
with cable ties.
Skid Steer Hook-up
DANGER
!
To avoid serious injury or death:
A crushing hazard exists while hooking-up and unhooking the
attachment. Do not allow anyone to stand between attachment
and power machine while approaching or backing away from
the attachment. Do not operate lift and/or tilt controls while
someone is near the power machine and/or attachment.
WARNING
!
To avoid serious injury or death:
Check hitch fit-up frequently. An improper fit-up can cause the
attachment to come loose from the loader hitch plate and fall.
NOTE: Quick disconnect couplers (#3, #4, & #13)
are not included with the base unit. Optional
hydraulic quick couplers are available. See “Flat
Face Couplers” and “CTL/SS Coupler” on page 30
for detailed information and part numbers.
Refer to Figure 1-1 & Figure 1-4 on page 12:
How to identify hydraulic lines (#1, #2, & #12)
•Pressure Line (#1) connects to motor (#9)
•Return line (#2) connects to solenoids (#10 & #11).
•Case drain line (#12) connects to motor (#9).
NOTE: The Stump Grinder is designed for skid
steers with universal quick attach mounting system.

Section 1: Assembly & Set-up
Table of Contents
11/13/19 AP-SSG2524 Stump Grinder 328-215MK 11
Hooking-up to the Stump Grinder
Figure 1-1
Refer to Figure 1-1:
1. Check for and remove any debris in the hitch point
areas before hooking-up to the Stump Grinder.
2. Drive skid steer slowly to the grinder hitch making
sure the skid steer hitch plate is parallel with the
grinder’s top angle bars.
3. Rotate top of skid steer tilt arms slightly forward.
4. Place top of skid steer hitch plate under the top
angled bar on the grinder. Slowly raise hitch plate up
until hitch plate is seated under the top angle bar.
5. Rotate top of skid steer tilt arms back until grinder
makes full contact with hitch plate.
6. Push lock handles on skid steer hitch down so that
the pins go through the bottom slots of the grinder
hitch and make sure handles lock down.
35331 Bottom slots
Return Line (#2) Connects To
Solenoids
Pressure Line (#1) Connects To
Hydraulic Motor
Top Angle Bars
Hydraulic Hose Hook-up
DANGER
!
To avoid serious injury or death:
•Make sure skid steer has been properly shut down and
pressure to the hydraulics has been relieved.
•Hydraulic fluid under high pressure can penetrate the skin
and/or eyes causing a 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. A doctor familiar with this
type of injury must treat the injury within a few hours or
gangrene may result. DO NOT DELAY.
o
Kubota Hose Stay Kit
Figure 1-2
IMPORTANT: Hose routing is the responsibility of
the owner/operator of the power machine. Pinched
and/or stretched hoses are not covered under the
warranty.
IMPORTANT: Make sure coupler fittings on the
hydraulic hoses and power machine are clean
before connecting them together.
NOTE: The Stump Grinder will not operate with
hydraulic hoses hooked-up backwards.
NOTE: If attaching to a Kubota skid steer, route
hydraulic hoses through Kubota’s SVL or SSV Hose
Stay as shown in Figure 1-2. Purchase SVL Hose
Stay #S6689 or SSV Hose Stay #77700-07225
through your nearest Kubota dealer. Refer to your
skid steer Operator’s Manual for more instructions.
37394
Hose Stay Kit

Section 1: Assembly & Set-up
Table of Contents
11/13/19AP-SSG2524 Stump Grinder 328-215MK
12
Hooking-up to the Stump Grinder
Figure 1-3
Refer to Figure 1-3:
1. Clean quick disconnect couplers(#3 & #4) of dirt and
connect male and female couplers to the skid steer
outlets. Make sure quick disconnect couplers have
fully engaged. If they have not, check the following:
a. Make sure couplers are same size and type.
b. Make sure hydraulic pressure has been released.
2. Clean case drain coupler (#13) and connect to skid
steer case drain coupler.
Hydraulic Hose Identification
Figure 1-4
Refer to Figure 1-4:
3. At a low engine rpm, engage hydraulics while
watching rotation of cutting wheel (#16).
•The cutting wheel should rotate counterclockwise
if looking at the cutting wheel from the motor (#9)
side as shown in Figure 1-4.
4. If cutting wheel rotates in the wrong direction, switch
male and female couplers on the hydraulic hoses and
then reconnect hoses to the skid steer outlets.
5. For additional help, refer to Hydraulic Hook-up in
your skid steer Operator’s Manual.
6. Continue with “Solenoid Hook-up” before operating
hydraulic cylinders.
35331
Return Line (#2) Connects To
Solenoids
Pressure Line (#1) Connects To
Hydraulic Motor
35332
Return Line (#2) Connects To
Solenoids (#10 & #11)
Pressure Line (#1) Connects To
Hydraulic Motor (#9)
Case Drain Line (#12)
Connects To
Hydraulic Motor (#9)
Solenoid Hook-up
There are five optional wiring harnesses available and
they all connect the same way to the Stump Grinder
solenoids. See pages 20-25 for a detailed description
and installation instructions of all five.
Refer to Figure 1-5 on page 13:
1. Thread wiring harness (#16) through hose support
loops (#5, #6, #7, & #8) as shown in Figure 1-1 on
page 11.
2. Locate solenoid (#11). It operates tilt cylinder (#17)
(controls up/down movement). Attach green wire
connector (#15) and red wire connector (#14) to that
solenoid.
3. Locate solenoid (#10). It operates the articulate
cylinder (controls left/right swing movement). Attach
brown wire connector (#13) and white wire
connector (#12) to that solenoid.
4. Attach solenoid wiring harness to the skid steer:
•If attaching one of the optional Deutsch HGD30
14 pin 2 functions harness, attach the internal
14 pin plug to the skid steer’s external 14 pin plug.
•If attaching optional toggle switch control harness,
see “Control Harness With Deutsch 2 Pin Plug”
on page 21
•If attaching optional toggle switch control harness
for Kubota CTL, see “Control Harness With 2
Eyelets” on page 25
5. While sitting in the skid steer seat with seat belt
fastened, start skid steer, turn auxiliary hydraulics
“on”, and extend tilt cylinder (#17).
6. If tilt cylinder operates in the opposite direction
desired, lower skid steer loader arms fully down and
change green wire connector with red wire connector
at the solenoid.
7. Return to the skid steer seat, raise Stump Grinder off
the ground, and extend articulate cylinder (#2)
shown in Figure 3-1 on page 17.
8. If articulate cylinder operates in the opposite
direction desired, lower skid steer loader arms fully
down and change brown wire connector with white
wire connector at the solenoid.
9. Continue with “Check Equipment Clearances” on
page 13.

Section 1: Assembly & Set-up
Table of Contents
11/13/19 AP-SSG2524 Stump Grinder 328-215MK 13
Solenoid Hook-up
Figure 1-5
Check Equipment Clearances
It is important to check clearance before putting the
grinder into operation. Make sure hydraulic hoses and
wiring harness are long enough and won’t become
pinched or entangled in the equipment. Also, make sure
Stump Grinder does not come in contact with skid steer
frame and tires by carefully going through its full range of
motions.
1. Visually inspect hydraulic hoses for possible pinch
points and shortness. If needed, make hose
adjustments before putting equipment into service.
2. Visually inspect wiring harness for possible pinch
points and shortness. If needed, make adjustments
to the wiring harness before putting equipment into
service.
3. If necessary, have someone stand nearby that can
motion for the operator to stop if a problem develops
while completing steps 4-8 below.
4. Start skid steer and raise loader arms high enough to
tilt the hitch plate fully down without Stump Grinder
making contact with the ground.
5. Fully extend tilt cylinder on the Stump Grinder.
6. Fully extend hydraulic cylinders on end of loader
arms.
35333
Red Wire
Connector
Green Wire
Connector
White Wire
Connector
Brown Wire
Connector
Articulate Solenoid
Tilt
Solenoid
IMPORTANT: Make sure hydraulic hoses and wiring
harness are long enough and properly secured so
that they do not become stretched or pinched
through their full range of motions.
7. Lower loader arms while watching for interferences
between skid steer and grinder frame.
8. Return loader arms to the height established in
step 4.
9. Fully extend articulate cylinder on the Stump Grinder
to pivot cutting wheel to the right and repeat
steps 7 & 8.
10. Fully retract articulate cylinder on the Stump Grinder
to pivot cutting wheel fully to the left and repeat
steps 7 & 8.
11. Retract hydraulic cylinders on end of loader arms
and tilt cylinder on Stump Grinder to return Stump
Grinder to its straight out parking position.
12. Lower Stump Grinder until resting on its skid shoes.

Section 2: Adjustments
Table of Contents
11/13/19AP-SSG2524 Stump Grinder 328-215MK
14
Skid Shoe Adjustment
Refer to Figure 2-1:
1. Remove hex flange locknuts (#4) and hex head cap
screws (#3).
2. Move skid shoe (#2) up or down to preferred height.
3. Reinsert 1/2"-13 x 1 1/2" GR5 cap screws (#3) and
secure with hex flange locknuts (#4).
4. Tighten hex flange locknuts (#4) to the correct torque.
5. Repeat steps 1 to 4 for the right-hand side.
IMPORTANT: Make sure skid shoes are firmly
planted on the ground before operating Stump
Grinder. This will help minimize vibration and help
protect against structural damage to the unit.
Section 2: Adjustments
Skid Shoe Adjustment
Figure 2-1
37892

Section 3: Operating Procedures
Table of Contents
11/13/19 AP-SSG2524 Stump Grinder 328-215MK 15
7. Operate hydraulic controls to verify control lever
movements function properly and equipment
movements are correct. Make any necessary
changes to controls and hydraulic hook-ups before
putting equipment into service.
8. Operate Stump Grinder through its full range of
movements to check for clearances.
Operating Safety
DANGER
!
To avoid serious injury or death:
•All guards and shields must be installed and in good
working condition while operating the implement.
•Do not attach Stump Grinder to a tractor loader. The driver
can not see the unit in front of the tractor to position it or to
watch it while it is working. Not having good visibility of
your work area can cause a serious injury or death.
•Always operate skid steer while seated in the cab with seat
bar lowered when equipped and seat belt properly fastened.
The operator can be pinched, crushed, or thrown if not
properly seated in the cab or if operating loader arms from
outside the cab.
•Keep attachment, loader arms, and/or load away from
overhead electrical power lines. Place an orange warning
sign under overhead lines indicating type of danger above.
•Keep attachment, loader arms, and/or load away from
overhead electrical power lines. Place an orange warning
sign under overhead lines indicating type of danger above.
•A crushing hazard that can cause serious injury or death
always exists around power equipment.
•The operator of this attachment must know how to control
the power machine with attachment and how to stop them
quickly in an emergency.
•Do not drive up to anyone or an animal in front of a fixed
object such as a wall or bench. Never assume that the power
machine will stop in time.
•Keep bystanders, pets, and livestock away from your work
area. Never allow anyone to go near or under the
attachment or its load. The attachment and/or load can fall.
•Always secure equipment with solid, non-concrete supports
before working under it. Never go under equipment
supported by concrete blocks or hydraulics. Concrete can
break, hydraulic lines can burst, and/or hydraulic controls
can be actuated even when power to hydraulics is off.
WARNING
!
To avoid serious injury or death:
•Never make contact with underground utilities such as
electrical power lines, gas lines, phone lines, etc. They can
cause serious injury or death from electrocution, explosion,
or fire. If in doubt, call 811 (USA) before digging so that
they can mark the location of underground services in the
area. For contact information, see Dig Safe in the
“Important Safety Information” starting on page 1.
Section 3: Operating Procedures
Operating Checklist
Hazard control and accident prevention are dependent
upon the awareness, concern, prudence and proper
training involved in the operation, transport, storage, and
maintenance of the Stump Grinder. Therefore, it is
absolutely essential that no one operates the unit unless
they are age 16 or older and have read, fully understood,
and are totally familiar with the Operator’s Manual. Make
sure the operator has completed the Operating Checklist
below.
General Inspection
Make the following inspections with Stump Grinder
attached to a skid steer that is parked on a level surface.
1. Complete Operating Checklist table provided above.
2. Inspect skid steer safety equipment to make sure it is
in good working condition and that all safety alert
decals are visible and readable. Replace all missing
and unreadable safety alert decals.
3. Inspect hitch hook-up to grinder. Make sure skid
steer hitch is secured under the grinder’s top angle
bar, lock pins extend fully through bottom slots in
grinder hitch, and handles are locked down.
4. Inspect wiring harness and connection points before
starting the skid steer. Make sure harness and
connectors are not pinched, frayed, or broken and
that they will not come in contact with moving parts.
5. Inspect hydraulic hoses, fittings, and valves before
starting the skid steer. Make sure hoses are not
pinched, kinked, twisted, or frayed and that they will
not come in contact with moving parts.
6. Hose sleeves help protect hoses from wear and
operator from oil sprays. Inspect hose sleeves to
make sure they are properly secured to the hydraulic
hoses, are not torn, and are not worn thin. Replace
hose sleeve if worn thin, torn, or not properly secured
to hydraulic hoses.
Operating Checklist
Check Ref.
Read & follow all safety rules carefully.
Refer to “Important Safety Information” and
Safety Alert Symbols throughout this manual.
All
pages
Read & follow hook-up & preparation
instructions. Refer to “Section 1: Assembly &
Set-up”.
13
Read and follow all operating procedures.
Refer to “Section 3: Operating Procedures”. 15
Read & follow all maintenance instructions.
Refer to “Section 5: Maintenance &
Lubrication”. 31
Make sure there are no hydraulic leaks.
Refer to “Avoid High Pressure Fluids Hazard”. 3
Check grinder initially and periodically for
loose bolts and pins. Refer to “Torque Values
Chart”.
37

Section 3: Operating Procedures
Table of Contents
11/13/19AP-SSG2524 Stump Grinder 328-215MK
16
•Use Stump Grinder for grinding tree stumps only. Do not
use as a ditcher or for any other purpose. The attachment
can come in contact with underground utilities, rock, and
other debris that can damage the cutting wheel/skid steer
and cause serious injury or death.
•Backup alarm must be in good working order to warn
others. Use a backup camera or rear-view mirror that is in
good condition to help see undesirable situations behind the
unit. Drive at a slower speed to compensate for blind spots.
•Hydraulic fluid under high pressure can penetrate the skin
and/or eyes causing a 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. A doctor familiar with this
type of injury must treat the injury within a few hours or
gangrene may result. DO NOT DELAY.
•Allow only persons to operate this attachment who have
fully read and comprehended this manual, who are properly
trained to operate the attachment safely, and who are age 16
or older. Serious injury or death can result from the failure
to read, understand, and follow instructions provided in this
manual.
•Do not travel across inclines where equipment could slip or
roll-over. Consult your power machine Operator’s Manual
for acceptable inclines they are capable of crossing.
•Do not use Stump Grinder to remove material other than
wood. Doing so can cause components to break, solid
objects to be thrown, and breakdowns. Any of these
problems can cause serious injury or death.
•Operate only power machines equipped with a certified
Roll-Over Protective Structure (ROPS) and seat belt. Keep
folding ROPS in the “locked up” position when
appropriate. 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.
•Never carry riders on the attachment or power machine.
Riders can obstruct the operator’s view, interfere with
controls, be pinched by moving components, become
entangled in rotating components, struck by objects, thrown
about, fall off and be run over, etc.
•Do not abuse equipment. Incorrect use of skid steer and
Stump Grinder can damage equipment structurally and
cause serious injury or death.
•Check hook-up points frequently to make sure skid steer
hitch is properly positioned under the top angle bar, locking
pins are seated in their notches, handles are locked down,
and equipment is in good operating condition.
•Do not carry or lift loads with the Stump Grinder.
•Do not use Stump Grinder as a working platform. Using
grinder as a working platform can cause serious injury or
death.
•Do not use Stump Grinder for lifting front end of skid steer
off the ground. Doing so can damage equipment and cause
injury if exceeding lift capacity of unit.
•Do not use Stump Grinder for pulling objects out of the
ground, for digging into the ground, for prying other
objects, or for pushing and towing other equipment.
•The parts on your Stump Grinder have been specially
designed and should only be replaced with genuine Kubota
parts. Altering the grinder can adversely affect its
performance and/or reliability.
•Avoid exposure to dust containing crystalline silica
particles. This dust can cause serious injury to the lungs
(silicosis). 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.
CAUTION
!
To avoid minor or moderate injury:
•Failure to obey all safety instructions listed below can
result in injury to the operator and other personnel.
•Always lower Stump Grinder to ground level before
dismounting skid steer.
•Always store Stump Grinder in a secure position so that it
will not fall over.
•Follow all recommendations provided by the skid steer
manufacturer when adding counter weights and other
ballast.
•Follow manufacturer’s recommendations when
dismounting and parking the skid steer.
•Do not exceed Stump Grinder specifications for maximum
input power and/or cutting wheel speed. Personal injury
and/or equipment damage can occur.
Transport Safety
WARNING
!
To avoid serious injury or death:
•Follow all safety precautions when transporting a load. Not
using safe transporting methods can damage the equipment
and cause serious injury or death.
•Always transport loads as close to the ground as possible
without hitting objects. A load carried high could shift
causing the load to fall, tipping of the machine, and/or loss
of control.
•Always travel straight up and straight down inclines. Never
make turns on the incline.
•Transporting loads across inclines, over ramps, on bumpy,
soft, or slippery surfaces reduces machine stability and lift
capacity. Transporting and lifting loads under these
conditions is extremely dangerous. Follow all transport
instructions in your power machine Operator’s Manual.
•When traveling on roadways, travel in such a way that
other vehicles may pass you safely. Use LED lights, clean
reflectors, and a slow moving vehicle sign that is visible
from the back to warn operators in other vehicles of your
presence. Always comply with all federal, state, and local
laws.