Operation and
Parts Manual
3-Point PTO and Hydraulic
Safety
Stump Grinders
Models:
SC-25 and SC-25H
SC-50 and SC-50H
Operation
Maintenance
Repair
Troubleshooting
Parts
Contents
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Product Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Safety Alert Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . .6
Training . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Operation (continued) . . . . . . . . . . . . . . . . . . . . . . . . . 8
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Driveline Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Shields and Guards . . . . . . . . . . . . . . . . . . . . . . . . . 9
Work Area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Personal Protection . . . . . . . . . . . . . . . . . . . . . . . . . 9
Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Equipment Damage. . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Specifi cations . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Safety Signs and Informational Labels . . . . . . 11
General Information. . . . . . . . . . . . . . . . . . . . . . . . . . 11
How to Install Replacement Safety Signs . . . . . . . . . 11
Set Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Install Attachment Pins . . . . . . . . . . . . . . . . . . . . . . . 17
Category I Pins. . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Category II Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Shaft Operating Angle . . . . . . . . . . . . . . . . . . . . . . . . 17
Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Attaching SC-25 and SC-50 Stumpbuster to a
Tractor’s 3-Point Hitch . . . . . . . . . . . . . . . . . . . . . . . 18
Attaching SC-25-H and SC-50-H Hydraulic
Stumpbuster to a Skid Steer Loader . . . . . . . . . . . 18
Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Model SC-25 and SC-50 . . . . . . . . . . . . . . . . . . . . . . 19
Model SC-25-H and SC-50-H. . . . . . . . . . . . . . . . . . 19
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Lubrication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Stump Cutter Unit. . . . . . . . . . . . . . . . . . . . . . . . . . 20
Gearbox Lubrication. . . . . . . . . . . . . . . . . . . . . . . . 20
Sliding Members. . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Universal Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Carbide Teeth Replacement . . . . . . . . . . . . . . . . . . . 21
Adjusting Slip Clutch . . . . . . . . . . . . . . . . . . . . . . . . . 21
Driveline Maintenance. . . . . . . . . . . . . . . . . . . . . . . . 22
Trimming Driveline Shaft . . . . . . . . . . . . . . . . . . . . 22
Cutting Safety Guard . . . . . . . . . . . . . . . . . . . . . . . 22
Driveline Guard Replacement . . . . . . . . . . . . . . . . 22
Universal Joint Repair . . . . . . . . . . . . . . . . . . . . . . 22
U-Joint Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Gearbox Maintenance . . . . . . . . . . . . . . . . . . . . . . . . 24
Remove Gearbox from Stumpbuster . . . . . . . . . . . 24
Seal Replacement . . . . . . . . . . . . . . . . . . . . . . . . . 24
Seal Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Output Shaft Repair . . . . . . . . . . . . . . . . . . . . . . . . 25
Cleaning and Storage. . . . . . . . . . . . . . . . . . . . . 26
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
After Each Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Periodically or Before Extended Storage . . . . . . . . 26
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Bolt Torque Chart . . . . . . . . . . . . . . . . . . . . . . . . 27
Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
SC-50 and SC-50-H Stumpbuster. . . . . . . . . . . . . . . 28
SC-50 Main Assembly . . . . . . . . . . . . . . . . . . . . . . 28
SC-50 Main Assembly (continued). . . . . . . . . . . . . 29
SC-50 Main Assembly (continued). . . . . . . . . . . . . 30
SC-50 Main Assembly (continued). . . . . . . . . . . . . 31
SC-50 Frame Assembly (continued) . . . . . . . . . . . 32
SC-50 Gearbox Assembly . . . . . . . . . . . . . . . . . . . 33
SC-50 Driveline Assembly . . . . . . . . . . . . . . . . . . . 34
SC-50 Slip Clutch Assembly. . . . . . . . . . . . . . . . . . 35
SC-50-H Stumpbuster . . . . . . . . . . . . . . . . . . . . . . 36
SC-50-H6 Valve Parts . . . . . . . . . . . . . . . . . . . . . . 37
SC-50 Exploded View Illustrations . . . . . . . . . . . . . 38
SC-25 and SC-25-H Stumpbuster. . . . . . . . . . . . . . . 40
SC-25 3-Point Stumpbuster . . . . . . . . . . . . . . . . . . 40
SC-25-H Stumpbuster . . . . . . . . . . . . . . . . . . . . . . 41
SC-25-5 Gearbox Parts . . . . . . . . . . . . . . . . . . . . . 42
SC-25-4 PTO Shaft Parts. . . . . . . . . . . . . . . . . . . . 43
Shaver Manufacturing Company 3
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Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Introduction
The Shaver Manufacturing Company would like to
congratulate you on your purchase of the Shaver
StumpbusterTM. You have selected the best Stump
Grinder in its class. The clean design and uncomplicated
working principle have made Shaver the largest selling
Stump Grinder in the country.
Shaver manufacturers four models of stump grinders.
Two of the models are hydraulically powered. All the
models are a durable piece of equipment that, with
regular maintenance, will provide many years of service.
This manual provides information regarding assembly,
operation, and maintenance. It is important to read and
become familiar with this manual before assembling or
operating the Shaver Stumpbuster
TM
.
Note: For other valuable information on farm equipment
operation and safety, refer to the following
resources.
• Farm Equipment Manufacturers
Association (FEMA)
http://www.farmequip.org/home
• National Ag Safety Database
http://www.cdc.gov/nasd
Product Information
The SC-25 StumpbusterTM is shipped in one piece, ready
to mount on a Category I tractor. The SC-50 mounts on
a Category II tractor.
TM
The SC-25-H and SC-50-H Hydraulic Stumpbuster
is shipped in one piece ready to mount to a skidsteer
loader with a standard universal mounting bracket.
Record the Shaver product information here. The model
number and serial number are found on the metal tag
attached to the stump grinder.
Model Number: _________________________________
Serial Number: _________________________________
Date Purchased: ________________________________
Dealer Name: _________________________________
Note: For the operation of this stump cutter, references
to direction (right, left, forward, and rearward) are
determined from the operator’s position in the
tractor seat.
Serial Number
Plate Location
4 Shaver Manufacturing Company
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Safety
General
Safety of the operator and bystanders is one of the main
concerns in designing and developing a new piece of
equipment. Designers and manufacturers build in as
many safety features as possible. However, every year
many accidents occur, which could have been avoided by
a few seconds of thought and a more careful approach to
handling the equipment.
Most work-related accidents are caused by failure to
observe basic safety rules or precautions. An accident
can often be avoided by recognizing potentially
hazardous situations before an accident occurs. As
you fi ll, tow, operate, or maintain the trailer (unit), you
must be alert to potential hazards. You should also have
the necessary training, skills, and tools to perform any
assembly or maintenance procedures.
Improper operation and maintenance of this unit could
result in a dangerous situation that could cause injury or
death.
If you have any questions not answered in this manual
or require additional copies or the manual is damaged,
please contact your dealer or
Shaver Manufacturing Company
103 South Washington Avenue
P.O. Box 358
Graettinger, Iowa 51342
Phone: (712) 859-3293
Fax: (712) 859-3294
www.shavermfg.com
The information, specifi cations, and illustrations in this
manual are based on the information that was available
at the time this material was written and can change at
any time without notice.
Safety Alert Symbols
This is the safety alert symbol. It is used to alert
you to potential personal injury hazards. Obey
all safety messages that follow this symbol to
avoid possible injury or death.
This manual contains DANGERS, SAFETY
INSTRUCTIONS, CAUTIONS, IMPORTANT NOTICES,
and NOTES which must be followed to prevent the
possibility of improper service, damage to the equipment,
personal injury, or death. The following key words call the
readers’ attention to potential hazards.
Hazards are identifi ed by the “Safety Alert Symbol”
and followed by a signal word such as “DANGER”,
“WARNING”, or “CAUTION”.
DANGER
Indicates an imminently hazardous situation which, if
not avoided, will result in death or serious injury. This
signal word is limited to the most extreme situations.
WARNING
Indicates a potentially hazardous situation which, if
not avoided, could result in death or serious injury.
WARNING
Do not use the unit until you read and
understand the information contained in this
manual.
Safety precautions and warnings are provided
in this manual and on the unit. If these hazard
warnings are not heeded, bodily injury or
death could occur to you or to other persons.
Shaver Manufacturing Company cannot anticipate every
possible circumstance that might involve a potential
hazard. The warnings in this manual and on the unit are,
therefore, not all-inclusive. If a method of installation or
operation not specifi cally recommended by us is used,
you must satisfy yourself that it is safe for you and for
others. You should also ensure that the unit will not be
damaged or be made unsafe by the methods that you
choose.
Shaver Manufacturing Company 5
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CAUTION
Indicates a potentially hazardous situation which, if
not avoided, may result in minor or moderate injury.
NOTICE
Indicates that equipment or property damage can result if
instructions are not followed.
SAFETY
INSTRUCTIONS
Safety instructions (or equivalent) signs indicate
specific safety-related instructions or procedures.
Note: Contains additional information important to a
procedure.
Safety Instructions
BEFORE OPERATING THE STUMPBUSTER:
PAY ATTENTION!
STAY ALERT!
YOUR SAFETY IS INVOLVED!
Safety is a primary concern in the design and
manufacturing of our products. Unfortunately our efforts
to provide safe equipment can be wiped out by an
operator’s single careless act.
In addition to the design and configuration of equipment,
hazard control and accident prevention are dependent
upon the awareness, concern, judgement, and proper
training of personnel involved in the operation, transport,
maintenance, and storage of equipment.
It has been said “The best safety device is an informed,
careful operator.” We ask you to be that kind of
operator.
Training
WARNING
Read And Understand Manual
Safety instructions are important! To prevent
personal injury or even death, be sure you read
and understand all of the instructions in this manual
and other related OEM equipment manuals! Also
follow all safety sign (decal) information.
This unit was designed for a specific application;
removing stumps from the ground. DO NOT modify or
use this stump grinder for any application other than
which it was designed.
Stump grinders that are operated improperly or by
untrained personnel can be dangerous; exposing
themselves and/or bystanders to possible serious
injury or death.
WARNING
Keep hands and body away from pressurized
lines. Use paper or cardboard, not hands or
other body parts, to check for leaks. Wear safety
goggles. Hydraulic fluid under pressure can easily
penetrate skin and will cause serious injury or death.
Make sure that all operating and service personnel
know that if hydraulic fluid penetrates the skin, it must
be surgically removed as soon as possible by a
doctor familiar with this form of injury or gangrene,
serious injury, or death will result. CONTACT A
PHYSICIAN IMMEDIATELY IF FLUID ENTERS THE
SKIN OR EYES. DO NOT DELAY.
Never allow children or untrained persons to
operate equipment.
Preparation
WARNING
To prevent possible injury or death:
Always wear relatively tight
and belted clothing to avoid
entanglement in moving
parts. Wear sturdy, rough-soled work shoes and
protective equipment for eyes, hair, hands, hearing,
and head.
Make sure shields and guards are properly
installed and in good condition. Replace if
damaged.
Make sure the stump grinder is properly attached
to the tractor, adjusted properly, and in good
operating condition.
Replacement manuals are available from your dealer,
online at www.shavermfg.com, or if you live in the
United States or Canada, you can call (712) 859-3293.
If you do not understand any part of this manual and
need assistance, see your dealer.
Know your controls and how to stop the engine
STOP
and attachment quickly in an emergency.
Operators must be instructed in and be capable
of safely operating this equipment, its
attachments, and all controls. Do not allow
anyone to operate this equipment without proper
instructions.
6 Shaver Manufacturing Company
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Make sure the spring-activated locking pin or
collar slides freely and is seated firmly in the
tractor PTO spline grove and in the gearbox
spline groove.
The tractor unit must be equipped with a
ROPS or ROPS cab and a seat belt. Keep
the seat belt securely fastened. Falling off
the power unit can result in death from being run over
or crushed. Keep the foldable ROPS systems in the
“locked up” position at all times.
Inspect the area and remove stones, branches,
or other hard objects that might be thrown,
causing injury or damage.
Consult the local utilities before digging. Know
the location of and avoid contracting all
underground cables, pipelines, overhead wires,
and other hazards in the digging area.
SAFETY
INSTRUCTIONS
WARNING
Check that all hardware and cotter pins are
properly installed and secured.
Check all lubrication points and grease, as
instructed in the Lubrication Information
section.
ON SC-25-H and SC-50-H make sure the skid loader
bracket is secured by the locking levers in the down
position.
Raise the hydraulic stump cutter 24” from the ground
to the bottom of the cutting wheel. Place the lift limit
chain through the skid steer’s safety loop. Connect
both ends of the chain with bolts, washers, and hex
nuts provided.
Make sure all safety decals are installed and
understood. Replace if damaged.
Check the condition of the stump grinder teeth
before operation.
Consult the local utilities before working. Know
the location of all underground cables,
pipelines, overhead wires, and other hazards in
the working area and avoid contact.
Avoid contact with the electrical wires.
Do not put the stump grinder into service
unless the cutting teeth edges are intact and in
good condition.
Do not put the stumpbuster into service unless
all the shields and guards are in place and in
good condition. Replace if damaged.
Do not operate the equipment while
under the influence of alcohol or drugs.
Operate only in daylight or good artificial light.
Do not raise the stumpbuster more than 24”
above ground level.
Operation
WARNING
A minimum 20% of the tractor and equipment
weight must be on the tractor front wheels
when the attachments are in the transport
position. Without this weight, the tractor could tip
over causing personal injury or death. The weight
may be attained with a loader, front wheel weights,
and ballast in the tires or front tractor weights. Weigh
the tractor and equipment. Do not estimate.
Do not allow bystanders in the area when
operating, attaching, removing, assembling or
servicing the equipment.
Keep hands, feet, hair, and clothing away from
the equipment while the engine is running.
Stay clear of all moving parts.
Always comply with all state and local lighting
and marking requirements.
Never allow riders on the power unit or
attachment.
Always sit in the power unit seat when
operating the controls or starting the
engine. Securely fasten the seat belt,
place the transmission in neutral, engage the brake,
and ensure all other controls are disengaged before
starting the power unit engine.
NEVER WORK UNDERNEATH EQUIPMENT.
Never place any part of the body underneath
the equipment or between moveable parts even
when the engine has been turned off. Hydraulic
system leak down, hydraulic system failures,
mechanical failures, or movement of the control
levers can cause the equipment to drop or rotate
unexpectedly and cause severe injury or death.
Never allow children or untrained persons to
operate the equipment.
Shaver Manufacturing Company 7
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Operation (continued)
WARNING
For Models SC-25 and SC-50, shift the
tractor into park or neutral and set the
brakes before engaging the PTO shaft or
grinding the tree stump. For Models SC-25-H and
SC-50-H, put the skid loader into park or neutral and
set the brake before engaging the hydraulics.
Do not operate on steep slopes. Do not stop,
start, change directions suddenly, or use
excessive speed on steep slopes.
SAFETY
INSTRUCTIONS
Tighten all bolts, nuts, and screws to torque
chart specifications in this manual. Check that
all cotter pins are installed securely before
putting the unit into service.
Storage
WARNING
Look in ALL directions to make sure the area is
clear and safe before operating the equipment.
Maintenance
WARNING
Service and maintenance work not covered in
OWNER SERVICE must be done by a qualified
dealership. Special skills, tools, and safety
procedures may be required. Failure to follow these
instructions can result in serious injury or death.
Before you or the dealer performs
service or maintenance, lower the
equipment to the ground and
block securely. Turn the engine off and remove the
key. On SC-25 and SC-50, disconnect the PTO shaft
from the tractor. On SC-25-H and SC-50-H, disconnect
the two hydraulic hoses from the skid loader.
Before servicing, make sure the unit is properly
attached to the tractor.
Block the equipment securely for storage.
Do not climb or lean on equipment stored on a
stand.
Keep children and bystanders away from the
storage area.
Make sure the stabilizer legs and jack stand leg
are securely seated on level ground.
Keep all persons away from the operator
control area while performing adjustments,
service, or maintenance.
Never perform service or maintenance with the
engine running.
Do not modify or alter, or permit anyone else to
modify or alter, the equipment or any of its
components in any way. This will void the
warranty.
Do not allow bystanders in the area when
operating or servicing the equipment.
After servicing, make sure the shields and
guards are properly reinstalled and in good
condition. Replace if damaged.
8 Shaver Manufacturing Company
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Driveline Safety
The area between the tractor and the PTO-driven
implement is a DANGER zone. This can be one of the
most dangerous places near the stump grinder.
The total shielding system includes the tractor’s master
shield, driveline guards, and implement shield. When
operating the unit, keep all guards and shields in place.
The tractor master shield and implement shield must be
installed to work with the driveline guard and provide the
intended coverage of rotating parts.
Almost every driveline accident happens during the day
and near the work site. Certain operating conditions are
particularly dangerous, as described in the following
paragraphs.
Shields and Guards
WARNING
Do not remove the tractor’s master shield or
the implement shield. Do not operate the unit
with missing guards or shields. Most driveline
accidents happen when the drivelines are operated
without shields or guards or they are improperly
maintained.
Replace the driveline guards and safety signs with the
original equipment manufacturer’s replacement parts.
Make sure the driveline guard can rotate independent
of the shaft a full rotation and can telescope freely.
WARNING
Always disengage the PTO shaft and turn off the
tractor before making any maintenance inspections,
repairs, or working around the PTO driveline. Keep
clear of the machine until all parts have stopped
moving.
Operation
WARNING
The driveline must be attached securely to the
tractor and the stump grinder. Do not attach
the drivelines with bolts or pins, which are
longer than recommended. They cannot only catch
loose clothing, boot-laces, or a pant cuff but, while
spinning rapidly, they can cause serious bodily injury
or death.
If the driveline has been provided with a retaining
chain, make sure the chain is in place and has been
properly connected to the tractor or the implement
attachment point.
Make sure the drawbar does not interfere with the
driveline guard. Make sure the 3-point hitch and
drawbar are correctly positioned so neither interferes
with the driveline. Lock the 3-point hitch when not in
use.
Never operate an implement with driveline guards in a
damaged condition.
Work Area
WARNING
Stay clear of potential hazards. Pay close
attention to the surrounding work area.
Keep children and bystanders away from the storage
area.
Do not use the tractor drawbar or the implement
tongue as a step. Do not step on or over a driveline.
Personal Protection
WARNING
Do not wear loose fitting clothes around the
driveline. Keep long hair tied back or under a
hat. Make sure the driveline parts are completely
stopped before approaching the stump grinder. Do
not operate the unit when tired or in a rush to get
finished.
Equipment Damage
SAFETY
INSTRUCTIONS
Do not allow the driveline to rest on the ground.
Rust and mud may interfere with the proper
operation of the driveline.
Never allow guards to pull apart. Guards can be
damaged during reassembly, resulting in possible
malfunction.
Don’t allow any hydraulic hoses, electric cords, ropes,
or other items to drape over the driveline guard. This
could result in damage to the hoses, cords, or guards.
Do not exceed the recommended PTO operating
speed.
Make sure that any shear pins are correctly installed
and that the proper replacement pins are readily
available. Check any other overload devices to ensure
they are operable and have been serviced according
to the manufacturer’s instructions.
Do not weld any protruding device onto the equipment
that would interfere with the driveline.
Shaver Manufacturing Company 9
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Specifications
SC-25 3 POINT STUMPBUSTER
Description Specifi cation
Weight 804 lbs
Cutting Wheel Diameter 24 inches
Cutting Wheel Speed 895 rpm
Cutting Arc 55 degrees
Hub Torque
Required Power Source 15 to 35 hp
Cutting Teeth
Maximum Stump Height 22 inches
Maximum Cutting Depth 10 inches
SC-25-H HYDRAULIC STUMPBUSTER
Description Specifi cation
Weight 800 lbs
Cutting Wheel Diameter 24 inches
Cutting Wheel Speed 980 rpm
Cutting Arc 50 degrees
Hub Torque 140 ft lbs
Required Power Source 15 to 25 GPM High Flow
Cutting Teeth 23 carbide steel teeth
Maximum Stump Height 22 inches
Maximum Cutting Depth 10 inches
450 ft lbs
23 carbide steel teeth
SC-50 3 POINT STUMPBUSTER
Description Specifi cation
Weight 1144 lbs
Cutting Wheel Diameter 34 inches
Cutting Wheel Speed 895 rpm
Cutting Arc 55 degrees
Hub Torque 450 ft lbs
Required Power Source 35 to 100 hp
Cutting Teeth 25 carbide steel teeth
Maximum Stump Height 24 inches
Maximum Cutting Depth 12 inches
SC-50-H HYDRAULIC STUMPBUSTER
Description Specifi cation
Weight 1200 lbs
Cutting Wheel Diameter 34 inches
Cutting Wheel Speed 795 rpm
Cutting Arc 55 degrees
Hub Torque 450 ft lbs
Required Power Source 25 to 40 GPM High Flow
Cutting Teeth 25 carbide steel teeth
Maximum Stump Height 24 inches
Maximum Cutting Depth 12 inches
10 Shaver Manufacturing Company
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Safety Signs and Informational Labels
General Information
The types of safety signs (hazard labels) and instructional
labels are shown in the following illustrations. Good
safety practices require that you familiarize yourself
with the various safety signs, the type of warning, and
the area or particular operation related to that area that
requires your SAFETY AWARENESS.
THINK
SAFETY!
Pay close attention to the safety and instructional signs
attached to the tow vehicle and the trailer. Duplicate
safety signs, which are attached to the trailer, can also be
found in this section. If the trailer is missing a sign or one
is unreadable, replace the sign before using the trailer.
AR
N
I
NG
Safety and Instructional Signs
Think SAFETY!
Work SAFELY!
SAFETY
INSTRUCTIONS
How to Install Replacement Safety Signs
1. Clean and dry the installation area.
Note: Do not install the signs if the temperature is below
50°F (10°C).
2. Determine the exact position before you remove the
backing paper.
3. Remove the backing paper.
4. Align the sign over the specified area and carefully
press the sign to the part/frame.
Note: Small air pockets can be pierced with a pin and
smoothed out using the piece of backing paper.
1. Keep safety or instructional signs clean and legible
at all times.
2. Replace any missing or hard-to-read safety or
instructional signs.
3. Use care when washing or cleaning the trailer not
to remove or damage the signs.
4. Locations for the signs and replacement part
numbers are shown in this section.
5. Replacement parts must have replacement signs
attached during installation and/or before the
trailer is used.
6. Safety signs are available from your authorized
dealer or from Duo Lift at no charge.
Shaver Manufacturing Company 11
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SC-50 3 Point Stumpbuster
Item Part No. Description Qty.
1 MS-203 Refl ector Decal 1
2 MS-503 Mud Flap Safety Decal 1
3 MS-280 FEMA Member Decal 1
4 MS-161A Shaver Decal (small) 2
5 MS-507 Gearbox Oil Decal 1
6 MS-509 Top Cylinder Raise Decal 1
7 MS-502-A Crush Hazard Decal 1
8 MS-171 High Pressure Warning Decal 2
9 MS-505 Shield Missing Decal 1
10 MS-506 PTO Speed Warning Decal 1
11 PHDC4 Danger, Read The Manual Decal 1
12 MS-500 Stump Grinder Direction Decal 1
13 MS-811 Call to Dig Decal 1
18 — Serial Number Plate —
19 MS-504-G Depth Gauge Decal 1
SC-25 3 Point Stumpbuster
Item Part No. Description Qty.
1 MS-203 Refl ector Decal 1
2 MS-503 Mud Flap Safety Decal 1
3 MS-280 FEMA Member Decal 1
4 MS-161B Shaver Decal (Large) 2
5 MS-507-A Oil Fill Decal 1
6 MS-509 Top Cylinder Raise Decal 1
7 MS-502-A Crush Hazard Decal 1
8 MS-171 High Pressure Warning Decal 2
9 MS-505 Shield Missing Decal 1
10 MS-506 PTO Speed Warning Decal 1
11 PHDC4 Danger, Read The Manual Decal 1
12 MS-500 Stump Grinder Direction Decal 1
13 MS-811 Call to Dig Decal 1
18 — Serial Number Plate —
19 MS-504-G Depth Gauge Decal 1
SC-50-H Hydraulic Stumpbuster
Item Part No. Description Qty.
1 MS-203 Refl ector Decal 1
2 MS-503 Mud Flap Safety Decal 1
3 MS-280 FEMA Member Decal 1
4 MS-161A Shaver Decal (small) 2
5 MS-507 Gearbox Oil Decal 1
7 MS-502-A Crush Hazard Decal 1
8 MS-171 High Pressure Warning Decal 2
9 MS-505 Shield Missing Decal 1
11 PHDC4 Danger, Read The Manual Decal 1
12 MS-500 Stump Grinder Direction Decal 1
13 MS-811 Call to Dig Decal 1
14 MS-504 Stump Cutter Height Decal 1
15 MS-508 Hydraulic Flow Warning (40 gpm) 1
17* MS-2550-H Clean Quick Couplers Decal 1
18 — Serial Number Plate —
19 MS-504-G Depth Gauge Decal 1
*Not shown.
SC-25-H Hydraulic Stumpbuster
Item Part No. Description Qty.
1 MS-203 Refl ector Decal 1
2 MS-503 Mud Flap Safety Decal 1
3 MS-280 FEMA Member Decal 1
4 MS-161B Shaver Decal (Large) 2
5 MS-507-A Oil Fill Decal 1
7 MS-502-A Crush Hazard Decal 1
8 MS-171 High Pressure Warning Decal 2
9 MS-505 Shield Missing Decal 1
11 PHDC4 Danger, Read The Manual Decal 1
12 MS-500 Stump Grinder Direction Decal 1
13 MS-811 Call to Dig Decal 1
14 MS-504 Stump Cutter Height Decal 1
16 MS-508-A Hydraulic Flow Warning (25gpm) 1
17* MS-2550-H Clean Quick Couplers Decal 1
18 — Serial Number Plate —
19 MS-504-G Depth Gauge Decal 1
*Not shown.
12 Shaver Manufacturing Company
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SMFG-0002
6
19
1
4
5
3
2
1
7
8
9
18
SMFG-0003
4
11
15
16
14
10
13
17
12
SKID LOADER
BRACKET
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1. MS-203 – Reflector Decal (red reflective material)
2. MS-503 – Mud Flap Safety Decal
4. MS-161-A – Shaver Decal (small)
MS-161-B – Shaver Decal (large)
5. MS-507-A – Oil Fill Decal
3. MS-280 – FEMA Member Decal
6. MS-509 – Top Cylinder Raise Decal
14 Shaver Manufacturing Company
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7. MS-502A – Crush Hazard Decal
10. MS-506 – PTO Speed Warning Decal
11. PHD-C4 – Danger, Read the Manual Decal
8. MS-171 – High-Pressure Warning Decal
9. MS-505 – Shield Missing Decal
12. MS-500 – Stump Grind Direction Decal
Shaver Manufacturing Company 15
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13. MS-811 – Call to Dig Decal
14. MS-504 – Stump Cutter Height Decal
15. MS-508-A – Hydraulic Flow Warning Decal
16. MS-508 – Hydraulic Flow Warning Decal
17. MS-2550-H – Clean Quick Couplers Decal
16 Shaver Manufacturing Company
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Set Up
Install Attachment Pins
Install either the Category I 3-point pins (SC-25) or the
Category I or II pins for the SC-50. The stump grinder is
shipped with both Category 1 and Category II attachment
pins.
SMFG-0004
Category I
Category I Pins
1. Install the attachment pin on the inside of 3-point
attachment bracket for Cat I.
2. Secure with lock washer and hex nut.
Category II
Shaft Operating Angle
Adjust the tractor’s hydraulic control to minimize the lift
height. Lifting the stump grinder too high (severe shaft
angle) will place stress on the universal joint and cause
it to fail.
Single Universal Joint
Part Number Description
Intermittent operation Maximum angle 25 degrees
Continuous operation Maximum angle 17 degrees
Double Universal Joint
Part Number Description
Intermittent operation Maximum angle 80 degrees
Continuous operation Maximum angle 25 degrees
Category II Pins
1. Install the hitch pin on the outside of a 3-point
attachment bracket for Cat II on SC-50.
2. Secure with lock washer and hex nut.
Shaver Manufacturing Company 17
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Attachment
Attaching SC-25 and SC-50 Stumpbuster to
a Tractor’s 3-Point Hitch
1. Raise the top cylinder completely BEFORE raising the
lower lift arms to avoid damaging the PTO shaft.
2. Make sure the jack stand leg and the two stabilizers
are securely on the ground.
3. Attach the stump cutter hitch pins to the tractor’s
lower lift arms and secure.
4. Attach the tractor top link to the third arm ear and
secure by installing the tractor top link pin.
5. Connect the PTO shaft to the tractor’s power take-off.
6. Slide the slip collar back or push the slip pin in to
make a secure connection. The slip collar or slip
pin should snap back into its original position if the
connection is secure.
7. Adjust the 3-point anti-sway devices to prevent the
stumpbuster from side-to-side movement during
transport.
8. Adjust the tractor’s drawbar so it will not interfere with
the stumpbuster or the PTO shaft.
9. Adjust the four quick couplers to the tractor’s hydraulic
power source. These couplers are customer
supplied.
10. Place the jack stand leg into the working position and
pin securely.
11. Raise the top cylinder and then raise the lower lift
arms.
Attaching SC-25-H and SC-50-H Hydraulic
Stumpbuster to a Skid Steer Loader
1. Make sure the jack stand leg and stabilizers are
securely on the ground.
2. Attach the stumpbuster to the skid loader with the
quick attach bracket by mounting the plate on the
boom and moving the boom levers into the down
position. Make sure the levers are locked and secure.
3. Locate the hose connected to the valve port marked
“P”. This is the pressure hose. Attach a quick
coupler to its end and then connect to the skid loaders
hydraulic pressure source.
4. Locate the hose connected to the valve port marked
“R”. This is the hose for the oil to return to the skid
loader. Connect a quick coupler to the end and then
connect it to the skid loader return outlet.
5. Place the operating toggle switch in the desired
position on the frame of the skid loader. Drill a ½
inch hole and mount the toggle switch with the nut
provided on the toggle switch.
6. Connect the black wires of the harness provided to
the “ground” terminal on the skid loader.
7. Connect the red wires to the “power” (12 Volt)
terminals of the skid loader.
8. Place the jack stand leg into the working position and
pin securely.
9. Attach the lift limit chain to the skid loader’s safety
loop. Raise the skid loader boom arms.
18 Shaver Manufacturing Company
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Operation
Model SC-25 and SC-50
NOTICE
The top cylinder must be completely raised to avoid
damage to the PTO shaft before raising the lower lift arms
of the 3-point hitch.
WARNING
Power for operating the stump grinder is
supplied by the tractor’s power take-off. Know
how to stop the tractor and the stump cutter
quickly in case of an emergency.
1. Position the stump cutter above the stump to be
removed. Engage the PTO at low engine rpm to
avoid excess stress on the gearbox and PTO shaft.
Once the PTO shaft is engaged, increase the PTO
speed to 540 rpm and maintain during the cutting.
2. Lower the 3-point arms until the stabilizer pads are
securely on the ground.
3. Engage the top cylinder to lower the wheel to the
desired depth on the stump.
4. Start the wheel on the left edge of the stump and
slowly engage the side cylinder to begin cutting.
5. Once each pass is completed, activate the side
cylinder to the left. Lower the cylinder. Activate
the side cylinder to the right. If the stump is large,
reposition the tractor and repeat the process.
6. When finished removing the stump, disengage the
PTO shaft, raise the top cylinder, and then raise the
stump grinder off the ground by raising the 3-point
lower lift arms.
Note: Do not raise the stump cutter more than 24”
above ground level.
Model SC-25-H and SC-50-H
WARNING
Power for operating the stump grinder is
supplied by the skid loader’s hydraulic
pressure. Know how to stop the skid loader
and the stump cutter quickly in case of an emergency.
1. Engage the hydraulic pressure. Increase rpm to 980
and maintain during the cutting.
2. Lower the skid loader boom arms onto the stump until
the wheel is at the desired cutting depth.
3. Engage the wheel motion and position on the right
side edge of the stump. Slowly activate the side
cylinder to begin cutting.
4. With each pass complete, activate the side cylinder
to the right. Lower the stump cutter to the desired
depth. Activate the side cylinder to the left. If the
stump is large, reposition the skid loader and repeat
the process.
5. Once the stump is removed, disengage the skid
loader hydraulics. Raise the stump cutter until the
stabilizer pads are off the ground.
6. Do not raise the stump grinder more than 24” above
ground level.
7. When completed:
a. Raise the stump grinder 24” from the ground to the
bottom of the cutting wheel.
b. Place the lift limit chain through the skid steer’s
safety loop.
c. Connect both ends of the chain with bolts,
washers, and hex nuts provided.
Shaver Manufacturing Company 19
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Maintenance
Lubrication
Stump Cutter Unit
SMFG-0005
1. Do not let excess grease collect on or around parts,
particularly when operating in sandy areas.
2. Use a lithium grease of #2 consistency for all
locations unless otherwise noted.
3. Grease the stump cutter swivel points every eight
hours.
Gearbox Lubrication
SMFG-0005a
1. The gearbox does not contain oil. Fill before
operating. Failure to do so will void the one year
warranty.
2. Fill the gearbox with two pints of SAE 90 oil.
3. For the gearbox, use a high quality gear oil with a
viscosity index of 80W or 90W and an API service
rating of GL-4 or 5 in the gearboxes.
4. Fill the gearbox until the oil runs out of the side plug
on the gearbox. Check the gearbox daily for evidence
of leakage. Contact your dealer if leakage occurs.
SMFG-0006a
Note: Be sure to clean the fittings thoroughly before
attaching the grease gun. One good pump
of most guns is sufficient when the lubrication
schedule is followed.
Sliding Members
Use high temperature grease similar to HP multi-purpose
chassis grease.
Grease sliding members prior to assembly and after
every 20 hours of use. For applications with high
telescoping movement, grease every eight hours.
Universal Joints
Grease the standard joints every 20 hours, or every 8
hours for severe conditions, and wide angle joints every
8 hours under wide angle conditions. Operating the
standard shafts at greater than 10 degrees angle or wide
angle shaft at greater than 18 degrees angle dramatically
reduces cross bearing life and requires more frequent
lubrication.
NOTICE
Grease follows the easiest path through internal ports to
the four cross bearings. Overheating and poor quality
grease baked in one port will prevent grease reaching that
bearing, resulting in failure of individual cross bearings.
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Carbide Teeth Replacement
Note: Replace teeth whenever they become damaged,
broken, or excessively worn. Excessively worn
cutting edges greatly decrease cutting efficiency.
Teeth are not a “warranty” part.
NOTICE
Never operate the stumpbuster that has missing teeth.
SMFG-0007
1. Remove the hex nut from the tooth.
2. Remove the tooth.
3. Insert the new tooth and secure with the hex nut.
4. Torque the nut to 170 ft lbs.
A
4. Hold and prevent the clutch support from moving, and
turn the shaft to make sure the clutch slips.
5. If the clutch does not slip freely, disassemble and
clean the inner clutch plate faces, flange yoke, and
clutch support.
6. Reassemble the clutch.
7. Tighten the springs until they are compressed to
1-1/4”.
8. If the clutch continues to slip when the springs are
compressed to the 1-1/4” dimension, check the lining
ring for excessive wear.
Note: The slip clutch is not a “warranty” part.
Adjusting Slip Clutch
The slip clutch is designed to slip so that the gearbox
and driveline are protected if the cutter strikes an
obstruction.
To avoid damage to the implement, driveline, or tractor,
do not exceed the manufacturer’s recommended
settings, or use a spring that is not recommended.
A new slip clutch, or one that has been in storage over
the winter, may seize. Before operating the grinder,
make sure it will slip by performing the following
operation:
1. Turn the tractor engine off and remove the key.
2. Remove the driveline from the tractor PTO.
3. Loosen the eight cap screws to remove all tension
from the pressure plate.
Slip Clutch
Item Description
1 Spline Base Assembly
2 Bushing
3 Friction Disc
4 Spline Drive Plate
5 Outer Pressure Plate
6 Spring
Note: See page 35 for service part numbers.
Shaver Manufacturing Company 21
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Driveline Maintenance
Trimming Driveline Shaft
NOTICE
The end thrust from a driveline that is too long or a
telescopic tube that is not functioning properly can destroy
the tractor’s internal PTO drive or implement clutch and
gearbox, voiding the machine warranty.
1. Measure the groove-to-groove distance from the
implement shaft to the tractor shaft with the stump
grinder in its closest position.
2. Remove the safety guard from the new shaft and
measure the length between the shaft lock buttons or
clamp bolts with the shaft in the closed position.
3. The required length of the shaft is the groove-togroove length minus at least three inches to allow the
shaft to be disconnected from the tractor. This length
should also prevent end thrust damage. If the shaft is
shorter than this, make sure that at least 50% of the
telescopic tubes overlap.
4. If the shaft ends require cutting:
a. Measure the length of the new shaft.
b. Subtract the groove-to-groove measurement.
c. Add three inches to the length from Step B.
d. Cut this amount off of both inner and outer drive
tubes.
e. Remove the burrs and grease tubes.
Cutting Safety Guard
1. Measure the outer drive tube length.
2. Measure the safety guard shield from the red lever to
the red lever.
3. The safety guard shield needs to be 3” less than the
outer drive tube.
4. Grease both ends of the tube.
5. Position the safety guard to the drive tube and secure
in place.
Note: Additional instructions come with the PTO shaft.
4. Do not modify the driveline when being repaired
or replaced. The driveline was engineered and
manufactured for a specific implement application and
must not be altered.
CAUTION
Proper maintenance of all shields, guards, and
overload devices is important for safe operation.
A shield must be fitted to the implement input
connection so that it will overlap with the driveline
guard.
Universal Joint Repair
1
1) Cross Bearing (Ordered as a unit).
U-Joint Disassembly
1. Remove the external snap rings from the yokes in
four locations.
Driveline Guard Replacement
If a driveline guard needs to be replaced:
1. Make sure the proper guard bearings are used for
installation.
2. Lubricate the bearing grooves per the OEM
manufacturer’s recommendation.
3. If the driveline will not accept a guard, replace the
driveline.
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2. With the snap rings removed and the support drive in
the vise, hold the yoke in your hand and tap on the
yoke to drive the cup up out of the yoke.
3. Clamp the cup in the vise and tap on the yoke to
completely remove the cup from the yoke. Repeat
Steps 2 and 3 for the opposite cup.
4. Place the universal cross in the vise and tap on the
yoke to remove the cup. Repeat Step 3 for the final
removal. Drive the remaining cup out with a drift and
hammer.
Shaver Manufacturing Company 23
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U-Joint Assembly
1. Place the seals securely on the bearing cups. Insert
the cup into the yoke from the outside and press
in with hand pressure as far as possible. Insert the
journal cross into the bearing cup with the grease
fitting away from the shaft. Be careful not to disturb
the needle bearings. Insert another bearing cup
directly across from the first cup and press in as far
as possible with hand pressure. Tap the cups in the
vise and apply pressure. Be sure the journal cross is
started into the bearings and continue pressure with
the vise, squeezing in as far as possible. Tapping the
yoke will help.
2. Seat the cups by placing a drift or socket (slightly
smaller than the cup) on the cup and tap with a
hammer. Install the snap ring and repeat on the
opposite cup.
3. Repeat Steps 1 and 2 to install the remaining cups in
the remaining yoke.
4. Move both yokes in all directions to check for free
movement. If movement is restricted, tap sharply
on the yokes with a hammer to relieve any tension.
Repeat until both the yokes move in all directions
without restriction.
Gearbox Maintenance
Note: Read this entire section before starting any repair.
Many steps are dependent on each other.
Fill the gearbox with six pints of SAE 80W or 90W gear
lube.
Note: Repair to this gearbox is limited to replacing
bearings, seals, and gaskets. Replacing gears,
shafts, and a housing is not cost-effective.
Purchasing a complete gearbox is more
economical.
Inspect the gearbox for leakage and bad bearings.
Leakage is a very serious problem and must be
corrected immediately.
Bearing failure is indicated by excessive noise and sideto-side or end-play in gear shafts.
Remove Gearbox from Stumpbuster
Note: The gearbox is heavy; do not attempt to move it
without mechanical assistance.
1. Disconnect and remove the driveline from the tractor.
2. Remove the safety pin and clevis pin from the top
cylinder mount.
3. Move the top cylinder out of the work area.
4. Disconnect and remove the driveline from the
gearbox.
5. Remove the vent plug and siphon gear lube from the
housing through this opening.
6. Remove the four bolts that attach the gearbox to the
stump grinder.
7. Remove the gearbox.
Seal Replacement
Recommended sealant for gearbox repair is Permatex®
Aviation 3D Form-A-Gasket or equivalent.
Leakage can occur at the input or output gaskets and
shaft seals.
24 Shaver Manufacturing Company
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Seal Installation
Note: Proper seal installation is important. An improperly
installed seal will leak.
1. Clean the area in the housing where the seal outer
diameter (OD) seats. Apply a thin coat of Permatex®.
2. Inspect the area of the shaft where the seal seats.
Remove any burrs or nicks with an emery cloth.
3. Lubricate the gear shaft and seal lips.
4. Place the seal squarely on the housing with the
spring-loaded lip toward the housing. Select a piece
of pipe or tubing with an OD that will sit on the outside
edge of the seal but will clear the housing. Using
tubing with an OD that is too small will bow the seal
cage and ruin the seal.
Carefully press the seal into the housing, avoiding
distortion to the metal seal cage.
Output Shaft Repair
1. Disconnect and remove the rear driveline from the
gearbox.
2. Remove the vent plug and siphon gear lube from the
housing through this opening.
3. Remove the cutting wheel.
4. Remove the cutting wheel shaft seal. Replace with
the new seal.
This seal should be recessed in the housing. The
front seal should be pressed flush with the outside of
the housing.
Note: Distortion to the seal cage or damage to the seal
lip will cause the seal to leak.
5. Fill the gearbox with SAE 80W or 90W gear lube until
it runs out of the level plug.
6. Remove and replace any seal damaged in the
installation.
Incorrect
Installation
Pipe or tube must
press at outer edge
of seal
1) Seal. 2) Pipe or Tube. 3) Seal Seat. 4) Casting.
Shaver Manufacturing Company 25
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Cleaning and Storage
Cleaning
After Each Use
1. Remove large debris, such as clumps of dirt, grass,
crop residue, etc., from the machine.
2. Inspect the machine and replace worn or damaged
parts.
3. Replace any safety decals that are missing or not
readable.
Periodically or Before Extended Storage
1. Clean large debris, such as clumps of dirt, grass, crop
residue, etc., from the stump grinder.
2. Remove the remainder using a low pressure water
spray.
a. Be careful when spraying near scratched or torn
safety decals or near the edges of the decals, as
water spray can peel the decal off the surface.
b. Be careful when spraying near chipped or
scratched paint as water spray can lift the paint.
c. If a pressure washer is used, follow the advice of
the pressure washer manufacturer.
3. Inspect the stump grinder and replace worn or
damaged parts.
4. Sand down scratches and the edges of areas of
missing paint and coat with spray paint of matching
color.
5. Replace any safety decals that are missing or not
readable (supplied free by dealer). See Safety Signs
section for the installation location.
Storage
1. Raise the stump cutter.
2. Remove the retainer pin from the jack stand.
3. Lower the jack stand and align the top hole in the jack
stand leg with the hole in the support bracket.
4. Insert the retainer pin to secure the jack stand into
position.
5. Lower the stump cutter to the ground until the jack
stand and the two stabilizers are securely on the
ground.
26 Shaver Manufacturing Company
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Bolt Torque Chart
Always tighten hardware to these values unless a
different torque value or tightening procedure is listed for
a specific application.
Fasteners must always be replaced with the same grade
as specified in the manual parts list.
Always use the proper tool for tightening hardware: SAE
for SAE hardware and Metric for metric hardware.
Make sure the fastener threads are clean and start the
thread engagement properly.
All torque values are given to specifications used on
hardware defined by SAE J1701 MAR 99 & J1701M JUL
96.
No Marking
Grade 2
Low or Medium
Carbon Steel
3 Radial Lines
Grade 5
Medium Carbon
Steel Quenched
and Tempered
6 Radial Lines
Grade 8
Medium Carbon
Alloy Steel,
Quenched and
Tempered
MARKING ON HEAD
Diameter
(Inches)
1/4" 7/16" 6 8 10 13 14 18
5/16" 1/2" 12 17 19 26 27 37
3/8" 9/16" 23 31 35 47 49 67
7/16" 5/8" 36 48 55 75 78 106
1/2" 3/4" 55 75 85 115 120 163
9/16" 13/16" 78 106 121 164 171 232
5/8" 15/16" 110 149 170 230 240 325
3/4" 1-1/8" 192 261 297 403 420 569
7/8" 1-5/16" 306 416 474 642 669 907
1" 1-1/2" 467 634 722 979 1020 1383
Wrench
Size
lbs-ft N-m lbs-ft N-m lbs-ft N-m
SAE 2 SAE 5 SAE 8
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Warranty
Limited Warranty
Shaver Manufacturing Company, LLC warrants each
new Shaver product to be free from defects in material
and workmanship. This warranty is applicable only for
the normal service life expectancy of the product or
components, not to exceed 12 consecutive months from
the date of delivery of the new Shaver product to the
original purchaser.
Genuine Shaver replacement parts and components will
be warranted for 90 days from the date of purchase, or
the remainder of the original equipment warranty period,
whichever is longer.
Under no circumstances will it cover any merchandise
or components thereof, which, in the opinion of the
company, have been subjected to misuse, unauthorized
modification, alteration, an accident, or if a repair has
been made with parts other than those obtainable
through Shaver.
Our obligation under this warranty shall be limited to
repairing or replacing any part that, in our judgment,
shall show evidence of such defect, provided further that
such part shall be returned within thirty (30) days from
the date of failure to Shaver, routed through the dealer
and distributor from whom the purchase was made,
transportation charges prepaid. These are the items that
must be returned: gearboxes, valves, base plates, PTO
shafts, boom, arch, whole good (ex: driver, stumpbuster),
motors, driver cylinders, and short channels. If you are
uncertain what to return, please call Shaver. Provide
pictures if you are unable to return parts. Include
pictures of the serial number of the unit and a copy of
the invoice for date-of-purchase proof. All returned items
must have an RGA number. Contact Shaver at 712859-3293 to get authorization to return, file your warranty
claim and, if needed, an RGA will be provided.
This warranty shall not be interpreted to render Shaver
liable for injury or damages of any kind or nature to
person or property. This warranty does not extend to the
loss of crops, loss because of delay in harvesting, or any
expense or loss incurred for labor, substitute machinery,
rental, or for any other reason.
Except as set forth above, Shaver shall have no
obligation or liability of any kind on account of any
of its equipment and shall not be liable for special
or consequential damages. Shaver makes no other
warranty, expressed or implied, and specifically, Shaver
disclaims any implied warranty of merchantability
or fitness for a particular purpose. Some states or
provinces do not permit limitations or exclusions of
implied warranties or incidental or consequential
damages, so the limitations or exclusion in this warranty
may not apply.
This warranty is subject to any existing conditions of
supply which may directly affect our ability to obtain
materials or manufacture replacement parts.
Shaver reserves the right to make improvements in
design or changes in specifications at any time, without
incurring any obligation to owners of units previously
sold.
No one is authorized to alter, modify, or enlarge this
warranty, nor the exclusion, limitations, and reservations.
Shaver Manufacturing Co., LLC.
103 South Washington Avenue
P.O. Box 358
Graettinger, IA 51342
Phone: (712) 859-3293
Fax: (712) 859-3294
sales@shavermfg.com
www.shavermfg.com
44 Shaver Manufacturing Company
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Notes
Shaver Manufacturing Company 45
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Shaver StumpbusterTM March 2014
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