Worksaver SG-26A Instructions for use

CAUTION
THE FOLLOWING SAFETY PRECAUTIONS SHOULD BE THOROUGHLY UNDERSTOOD
BEFORE ATTEMPTING TO BEGIN ASSEMBLING THIS MACHINE
1. Select an area for assembly that is clean and free of any
debris which might cause persons working on the
assembly to trip.
2. Do not lift heavy parts or assemblies. Use crane, jack,
tackle, fork trucks or other mechanical devices.
3. Preview the assembly instructions in your operator’s
manual before proceeding further.
4. If the assembly instructions call for parts or assemblies to
be blocked up, use only blocking material that is in good
condition and is capable of handling the weight of the
assembly to be blocked. Also insure that the blocking
material is on a clean, dry surface.
5. Never put hands, or any part of body, under blocked up
assemblies if at all possible.
6. After completing assembly, thoroughly inspect the
machine to be sure that all nuts, bolts, hydraulic fittings
or any other fastened assemblies have been thoroughly
tightened.
7. Before operating the machine, thoroughly read the
operation section of your operator’s manual.
8. Before operating, read the maintenance section of your
operator’s manual to be sure that any parts requiring
lubrication, such as gearboxes, are full, to avoid any
possible damage.
9. Before operating equipment – If you have any
questions regarding the proper assembly or
operation, contact your dealer or representative.
OWNER’S/
OPERATOR’S
MANUAL
MODEL NO.’s
SG-26A
SG-36A
CAUTION
For Safe Operation
Read Rules And
Instructions Carefully
SI NO LEEINGLES, PIDA AYUDA
A AIGUIEN QUE SI LO LEA
PARA QUE LE TRADUZCA LAS
MEDIDAS DE SEGURIDAD.
STUMP GRINDERS
for
TRACTORS
Safety Instructions Assembly & Mounting
Tractor Preparation Maintenance
Operating Instructions Repair Parts

1
TABLE OF CONTENTS
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
CHECKLISTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SAFETY SIGNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
PREPARATION INSTRUCTIONS – TRACTOR . . . . . . . . . . . . 16
ASSEMBLY INSTRUCTIONS – TRACTOR . . . . . . . . . . . . . . . 17
OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . 20
OWNER MAINTENANCE & LUBRICATION . . . . . . . . . . . . . . 25
TROUBLE-SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
PARTS LISTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
TO THE OWNER:
Read this manual before using your Stump Grinder. This manual is provided to give you the necessary operat-
ing and maintenance instructions for keeping your Stump Grinder in top operating condition. Please read this
manual thoroughly. Understand what each control is for and how to use it. Observe all safety signs on the machine
and noted throughout the manual for safe operation of implement. Keep this manual handy for ready reference.
Like all mechanical products, it will require cleaning and upkeep. Lubricate the Stump Grinder as specified.
Use only genuine Worksaver, Inc. service parts. Substitute parts will void the warranty and may not meet stan-
dards required for safe and satisfactory operation. Record the model and serial number of your Stump Grinder
here:
Model:________________________________________ Serial Number:_______________________________
RETAIL CUSTOMER’S RESPONSIBILITY
It is the Retail Customer and/or Operator’s responsibility to read the Operator’s Manual, to operate, lubri-
cate, maintain, and store the product in accordance with all instructions and safety procedures. Failure
of the operator to read the Operator’s Manual is a misuse of this equipment.
It is the Retail Customer and/or Operator’s responsibility to inspect the product and to have any part(s)
repaired or replaced when continued operation would cause damage or excessive wear to other parts or
cause a safety hazard.
It is the Retail Customer’s responsibility to deliver the product to the authorized Worksaver Dealer, from
whom he purchased it, for service or replacement of defective parts which are covered by warranty.
Repairs to be submitted for warranty consideration must be made within forty-five (45) days of failure.
It is the Retail Customer’s responsibility for any cost incurred by the Dealer for traveling to or hauling
of the product for the purpose of performing a warranty obligation or inspection.
SI NO LEEINGLES, PIDA AYUDA A
AIGUIEN QUE SI LO LEA PARA QUE
LE TRADUZCA LAS MEDIDAS DE
SEGURIDAD.
STATEMENT
OF POLICY
It is the policy of Worksaver,
Inc. to improve its products where
it is possible and practical to do
so. Worksaver, Inc. reserves the
right to make changes or
improvements in design and con-
struction at any time, without
incurring the obligation to make
these changes on previously
manufactured units.

2
LIMITED WARRANTY
✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯
Worksaver warrants to the original purchaser of any new Stump Grinder (Models SG-26A and SG-36A), that
the equipment be free from defects in material and workmanship for a period of one (1) year for non-
commercial, state, and municipalities’ use ninety (90) days for commercial use from date of retail sale.
Replacement or repair parts installed in the equipment covered by this warranty are warranted for ninety (90)
days from the date of purchase of such part or to the expiration of the applicable new equipment warranty
period, whichever occurs later.
Such parts shall be provided at no cost to the user during regular working hours. Worksaver reserves the right
to inspect any equipment or parts which are claimed to have been defective in material or workmanship.
DISCLAIMER OF IMPLIED WARRANTIES & CONSEQUENTIAL DAMAGES
Worksaver’s obligation under this warranty, to the extent allowed by law, is in lieu of all warranties, implied or
expressed, including implied warranties of merchantability and fitness for a particular purpose and any liabili-
ty for incidental and consequential damages with respect to the sale or use of the items warranted. Such
incidental and consequential damages shall include but not be limited to: transportation charges other than
normal freight charges; cost of installation other than cost approved by Worksaver; duty; taxes; charges for nor-
mal service or adjustments; loss of crops or any other loss of income; rental of substitute equipment, expens-
es due to loss, damage, detention or delay in the delivery of equipment or parts resulting from acts beyond the
control of Worksaver.
THIS WARRANTY SHALL NOT APPLY:
1. To vendor items which carry their own warranties, such as hydraulic cylinders and hydraulic motor.
2. If the unit has been subjected to misapplication, abuse, misuse, negligence, fire or other accident.
3. If parts not made or supplied by Worksaver have been used in connection with the unit, if, in sole judge-
ment of Worksaver such use affects its performance, stability, or reliability.
4. If the unit has been altered or repaired outside of an authorized Worksaver dealership in a manner which,
in the sole judgement of Worksaver affects its performance, stability or reliability.
5. To normal maintenance service and normal replacement items such as gearbox lubricant, hydraulic fluid,
worn blades, or to normal deterioration of such things as belts and exterior finish, due to use or exposure.
6. To expendable or wear items such as teeth, chains, sprockets, belts, springs and other items that in the
company’s sole judgement is a wear item.
NO EMPLOYEE OR REPRESENTATIVE OF WORKSAVER IS AUTHORIZED TO CHANGE THIS WARRAN-
TY IN ANY WAY OR GRANT ANY OTHER WARRANTY UNLESS SUCH CHANGE IS MADE IN WRITING
AND SIGNED BY WORKSAVER’S SERVICE MANAGER, POST OFFICE BOX 100, LITCHFIELD, ILLINOIS
62056-0100.
✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯ ✯

3
STUMP GRINDER SPECIFICATIONS
SUBJECT MODEL SG-26A MODEL SG-36A
Mounting Cat. I - 3 pt. Cat. I / II - 3 pt.
Recommended hp / Flow Req’d 22 - 45 PTO 45 - 100 PTO
# Hyd. Remote Outlets Reg. 2 2
Weight of Unit 660 lbs. 880 lbs.
Max Stump Height 18” 18”
Max Cutting Depth 10” 15”
Total Vertical Movement (Wheel) 28” 33”
Grinding Wheel Diameter 26” 36”
Grinding Wheel Speed (rpm) 810 788
Cutting Wheel Tip Speed (ft./min.) 5,515 7,430
Cutting Arc (degrees) 45° 45°
# Cutting Teeth 33 42
Gearbox Ratio 1:1.5 1:1.46
Gearbox (hp rating) 60 hp 100 hp
Input rpm 540 rpm 540 rpm
Output rpm 810 788
Gearbox Warranty Limited 1 year Limited 1 year
Gearbox Lubrication 90 w/ gear oil 90 w/ gear oil
PTO Driveline (Metric Series) Metric Series 5 Metric Series 6
PTO Driveline Length (closed) 50” 541/4”
Swing Cylinder (Hyd.) 2” x 24” 2” x 24”
Depth Cylinder (Hyd.) 21/2” x 10” 21/2” x 10”

4
DAILY CHECKLIST
■■Check that stump grinder is properly and securely
attached to tractor.
■■During inspection, check that all nuts and bolts are
secure and that all safety shields are in place.
■■It is very important that the cutting teeth and cutting
tooth bolts are checked and tightened frequently.
■■Check condition of grinding wheel and security of
attachment.
■■Do not put stump grinder into service unless cutting
teeth edges are intact and in good repair.
■■Do not put stump grinder into service unless all
shields and guards are in place and in good condi-
tion. Replace if damaged.
■■Make sure spring-activated locking pin or collar
slides freely and is seated firmly in tractor PTO
spline groove.
■■Consult local utilities before working. Know location
of all underground cables, pipelines, overhead
wires, and other hazards in working area and avoid
contact.
■■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.
DELIVERY CHECKLIST
Inspect the stump grinder thoroughly after assembly to
be certain it is set up properly. The following checklist is
a reminder of points to inspect. Check off each item as it
is found satisfactory or after proper adjustment is made.
■■Check operator's manual and familiarize the opera-
tor with all sections of it.
■■Check that all safety shielding is in place.
■■Check all bolts to be sure they are tight or adjusted
properly at hinged locations.
■■Check that all cotter pins are properly installed.
■■Check PTO driveline. Make sure it is the correct
length to operate stump grinder with intended trac-
tor.
■■Check that all lubrication points with grease fittings
have been lubricated.
■■Check that carbide teeth have been properly
installed. Check all cutting tooth bolts.
■■Check stump grinder attitude, after mounting on
tractor.
■■Check that gearbox is properly serviced and seals
are not leaking.
■■All safety signs (decals) in place and readable.
■■When the stump grinder is transported on a road or
highway at night or during the day, safety devices
should be used for adequate warning to operators of
other vehicles.
CHECKLISTS
IMPORTANT!
Gearbox was not filled at factory. It must be serviced before operating. Fill to
proper level with SAE 90 oil. Failure to service will result in damage to gearbox.

5
To the Owner/Operator/Dealer
All implements with moving parts are potentially hazardous. There is no substitute for a cautious, safe-minded opera-
tor who recognizes the potential hazards and follows reasonable safety practices. The manufacturer has designed this
implement to be used with all its safety equipment properly attached to minimize the chance of accidents.
BEFORE YOU START!!
Read the safety messages on the implement and shown in your manual.
Observe the rules of safety and common sense!
THIS SAFETY ALERT SYMBOL IDENTIFIES IMPORTANT
SAFETY WARNING MESSAGES. CAREFULLY READ EACH
WARNING MESSAGE THAT FOLLOWS. FAILURE TO
UNDERSTAND AND OBEY A SAFETY WARNING, OR
RECOGNIZE A SAFETY HAZARD, COULD RESULT IN AN
INJURY OR DEATH TO YOU OR OTHERS AROUND YOU.
THE OPERATOR IS ULTIMATELY RESPONSIBLE FOR THE
SAFETY OF HIMSELF, AS WELL AS OTHERS, IN THE
OPERATING AREA OF THE TRACTOR AND EQUIPMENT.
THIS SYMBOL MEANS
– ATTENTION!
– BECOME ALERT!
– YOUR SAFETY IS INVOLVED!
UNDERSTAND SIGNAL WORDS
Indicates an imminently hazardous situation that, if not avoided, WILL result in
DEATH OR VERY SERIOUS INJURY.
Indicates a imminently hazardous situation that, if not avoided, COULD result in
DEATH OR SERIOUS INJURY.
Indicates a imminently hazardous situation that, if not avoided, MAY result in
MINOR INJURY.
Identifies special instructions or procedures that, if not strictly observed, could
result in damage to, or destruction of the machine, attachments or the environment.
NOTE: Identifies points of particular interest for more efficient and convenient operation or repair.
If you have questions not answered in this manual or require additional copies or the manual is damaged, please
contact your dealer or the manufacturer directly.
WARNING
DANGER
CAUTION
IMPORTANT
IMPORTANT SAFETY INFORMATION!
Working with equipment can lead to injuries. Read this manual, and the manual for your tractor, before assembly or
operating, to acquaint yourself with the machines. It is the implement owner’s responsibility, if this machine is used by
any person other than yourself, is loaned or rented, to make certain that the operator, prior to operating:
1. Reads and understands the operator’s manuals.
2. Is instructed in safe and proper use.
The use of this equipment is subject to certain hazards which cannot be protected against by mechanical
means or product design. All operators of this equipment must read and understand this entire manual, pay-
ing particular attention to safety and operating instructions, prior to using. If there is something in this manu-
al you do not understand, ask your supervisor, or your dealer, to explain it to you.

6
SAFETY INSTRUCTIONS (continued)
Safety of the operator 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 equipment.You, the operator, can avoid many accidents by observing the following precautions in this
section. To avoid personal injury, study the following precautions and insist those working with you, or for you,
follow them.
Personal protection equipment including hard hat, safety glasses, safety shoes, and gloves are recommended
during assembly, installation, operation, adjustment, maintaining, repairing, removal, or moving the implement.
Do not allow long hair, loose fitting clothing or jewelry to be around moving parts.
To prevent injury or death, use a tractor equipped with a Roll-Over Protective System (ROPS). Keep foldable
ROPS systems in “locked up” position at all times. Keep seat belt fastened.
Never exceed the limits of a piece of machinery. If its ability to do a job, or to do so safely, is in question –
DON’T TRY IT.
Do not modify the equipment in any way. Unauthorized modification may impair the function and/or safety and
could affect the life of the equipment.
In addition to the design and configuration of this implement, including safety signs and safety 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 the machine. Refer also
to safety messages and operation instructions in each of the appropriate sections of the tractor and stump
grinder manuals. Pay close attention to the safety signs affixed to the tractor and the stump grinder.
Replace any CAUTION, WARNING, DANGER or instruction safety sign that is not readable or is missing.
Location of such safety signs is indicated in this booklet. Do not paint over, remove or deface any safety signs
or warning signs on your equipment. Observe all safety signs and practice the instruction on them.
Never use alcoholic beverages or drugs which can hinder alertness or coordination while operating this
equipment. Consult your doctor about operating this machine while taking prescription medications.
Review the safety instructions with all users annually.
This equipment is dangerous to children and persons unfamiliar with its operation. The operator should be a
responsible adult familiar with farm machinery and trained in this equipment’s operations. Do not allow per-
sons to operate or assemble this unit until they have read this manual and have developed a thorough
understanding of the safety precautions and of how it works.
EQUIPMENT SAFETY GUIDELINES

7
SAFETY INSTRUCTIONS (continued)
Never operate the tractor or stump grinder until you have read and completely understand this manual, the
tractor operator’s manual, and each of the safety messages found on the safety signs on the tractor or stump
grinder.
Clear area where stump is to be cut of stones, branches or other debris that might be thrown, causing injury
or damage. Before starting machine, remove loose chunks of wood or other objects from stump and work area.
Operate only in daylight or good artificial light.
Ensure stump grinder is properly mounted, adjusted and in good operating condition.
Make sure driveline spring-activated locking pin or balls operate freely and are seated firmly in tractor PTO
stub shaft groove.
Ensure that all safety shielding and safety signs are properly installed and in good condition.
Operate the stump grinder only with a tractor equipped with an approved Roll-Over Protective System (ROPS).
Always wear your seat belt on tractors equipped with a ROPS. Serious injury or even death could result from
falling off the tractor – particularly during a turnover when the operator could be pinned under the ROPS or the
tractor. Keep foldable ROPS systems in “locked up” position at all times.
PROLONGED EXPOSURE TO LOUD NOISE MAY CAUSE PERMANENT HEARING LOSS!
Power units with or without implements attached can often be noisy enough to cause permanent, partial hear-
ing loss. We recommend that you wear hearing protection on a full-time basis if the noise in the Operator’s
position exceeds 80db. Noise over 85db on a long-term basis can cause severe hearing loss. Noise over 90db
adjacent to the Operator over a long-term basis may cause permanent, total hearing loss. NOTE: Hearing loss
from loud noise (from tractors, chain saws, radios, and other such sources close to the ear) is cumulative over
a lifetime without hope of natural recovery.
PREPARATION
Make sure that all operating and service personnel know that in the event hydraulic fluid penetrates the skin,
it must be surgically removed within a few hours by a physician familiar with this form of injury, or gangrene
may result.
Consult local utility companies (Call 811) to make certain there are no buried gas lines, electrical cables, etc.,
in the work area before beginning operation.

8
SAFETY INSTRUCTIONS (continued)
PTO powered stump grinder’s operating power is supplied from tractor PTO. Refer to your tractor manual for
PTO engagement and disengagement instructions. Always operate PTO at 540 RPM. Know how to stop trac-
tor and stump grinder quickly in case of an emergency.
The addition of a separate over-running PTO clutch attachment will change the length of the PTO driveline.
Pay extra attention to the instructions on PTO driveline installation.
Separate over-running clutch attachments will increase the length of the driveline and may cause the front
knuckle joint to operate beyond the cover of the tractor master shield. This is NOT recommended and will
present a dangerous operating condition.
The use of this equipment is subject to certain hazards which cannot be protected against by mechanical
means or product design. All operators of this equipment must read and understand this entire manual,
paying particular attention to safety and operating instructions, prior to using. If there is something in this
manual you do not understand, ask your supervisor, or your dealer, to explain it to you.
Keep all helpers and bystanders at least a hundred feet (100 ft.) from an operating stump grinder. Only prop-
erly trained people should operate this machine.
The majority of accidents involve entanglement on the driveline, injury of bystanders by objects thrown by the
grinding wheel, and operators being knocked off the tractor by low hanging limbs and then being run over by
the equipment. Accidents are most likely to occur with machines that are loaned or rented to someone who
has not read the owner’s manual and is not familiar with a stump grinder.
Check the tractor master shield over the PTO stub shaft. Make sure it is in good condition and fastened
securely to the tractor. Purchase a new shield if old shield is damaged or missing. (You may have to use a
tractor salvage yard for replacement parts on older tractors.)
When engaging PTO, the engine RPM should always be low. Once engaged and ready to start cutting, raise
PTO speed to 540 RPM and maintain throughout stump grinding operation.
STARTING AND STOPPING SAFETY
OPERATIONAL SAFETY
Start tractor only when properly seated in the tractor seat. Starting a tractor in gear can result in injury or death.
Do not mount or dismount the tractor while the tractor is moving. Mount or dismount the tractor only when the
tractor and all moving parts are completely stopped.

9
SAFETY INSTRUCTIONS (continued)
Always stop the power unit, set brake, shut off the engine, remove the ignition key, lower implement to the
ground and allow grinding wheel to come to a complete stop before dismounting. Never leave equipment unat-
tended with the power unit running.
Never place hands or feet under stump grinder with power unit engine running or before you are sure all motion
has stopped. Stay clear of all moving parts. Keep hands, feet, hair, and clothing away from moving parts.
Do not reach or place yourself under equipment until it is blocked securely.
Take all possible precautions when leaving unit unattended: Disengage PTO, set parking brake, stop engine
and remove key from ignition. Park in level area.
Do not allow riders on the stump grinder or power unit at any time. There is no safe place for any riders.
Disengage power takeoff (PTO) or hydraulic power and place transmission into neutral before attempting to
start engine.
Do not operate unless all personnel, livestock, and pets are a hundred feet away to prevent injury by thrown
objects. Never direct discharge toward anyone.
Install and secure all guards and shields before starting or operating.
PTO powered stump grinders are designed for use only on tractors with 540 RPM power takeoff.
Never operate tractor and stump grinder under trees with low hanging limbs. Operators can be knocked off the
tractor and then run over by the equipment.
Frequently check cutting teeth. They should be sharp, free of nicks and cracks and securely fastened.
Many varied objects, such as wire, cable, rope, or chains, can become entangled in the grinding wheel. These
items could then swing outside the housing at great velocities. Such a situation is extremely hazardous. Inspect
the cutting area for such objects before grinding stumps. Removing any like object from the site. Never allow
the grinding wheel to contact such items.
Pick up all rocks and other debris before grinding stumps. Enter new areas carefully. Never assume an area is
clear. Always Check!
OPERATIONAL SAFETY (continued)
The rotating parts of this machine have been designed and tested for rugged use. However, they could fail
upon impact with heavy, solid objects such as steel posts, and other hard foreign material. Such impact could
cause the broken objects to be thrown outward at very high velocities. To reduce the possibility of property
damage, serious injury, or even death, try to never allow the grinding wheel to contact such obstacles. Trees
will sometimes grow around foreign objects so they cannot always be seen. Be extra cautious when grinding
tree stumps near buildings or in fence rows.

10
SAFETY INSTRUCTIONS (continued)
Stop stump grinder and power unit immediately upon striking an obstruction. Turn engine off, remove key,
inspect and repair any damage before resuming operation.
The guards, flaps, driveline shields, and gearbox shields should be used and maintained in good working
condition. They should be inspected carefully, at least daily, for missing or broken shields, or guards. Missing
broken, or worn items must be replaced at once to reduce the possibility of injury from thrown objects or
entanglement.
Use extreme care and maintain minimum ground speed when transporting on hillside, over rough ground and
when operating close to ditches or fences. Be careful when turning sharp corners.
Reduce speed on slopes and sharp turns to minimize tipping or loss of control. Be careful when changing
directions on slopes. Do not start or stop suddenly on slopes. Avoid operation on steep slopes.
When using a tractor mounted unit, a minimum 20% of tractor and equipment weight must be on tractor front
wheels. Without this weight, tractor could tip over, causing personal injury or death. The weight may be attained
with a front end loader, front wheel weights, ballast in tires of front tractor weights. When attaining a minimum
20% of tractor and equipment weight on the front wheels, you must not exceed the ROPS weight certification.
Weigh the tractor and equipment. Do not guess or estimate!
Inspect the entire machine periodically as indicated in the Maintenance Section of this manual. Look for loose
fasteners, worn or broken parts, pinched hydraulic hoses, and leaky or loose fittings. Make sure all pins have
cotter pins and washers. Serious injury may occur from not maintaining this machine in good working order.
Stay alert for holes, rocks and roots in the terrain and other hidden hazards. Keep away from drop-offs.
In extremely uneven terrain, real wheel weights, front tractor weight, and/or tire ballast should be used to
improve stability.
Be careful when operating power unit and stump grinder on uneven ground to avoid upsetting.
Pass diagonally through sharp dips and avoid sharp drops to prevent “hanging up” power unit and stump
grinder. Practice will improve your skills in maneuvering rough terrain.
Avoid sudden starts and stops while traveling up or downhill.
OPERATIONAL SAFETY (continued)

11
SAFETY INSTRUCTIONS (continued)
Comply with state and local laws governing highway safety and movement of farm machinery on public roads.
The use of flashing amber lights is acceptable in most localities. However, some localities prohibit their use.
Local laws should be checked for all highway lighting and marking requirements.
When driving the tractor and equipment on the road or highway under 20 mph (32 kph) at night or during the
day, use flashing amber warning lights and a slow moving vehicle (SMV) identification emblem.
Always be sure the implement is in the proper raised position for transport.
Reduce speed when transporting mounted implements to avoid bouncing and momentary loss of steering
control.
Plan your route to avoid heavy traffic.
Always install transport locks, pins or brackets before transporting.
Do not drink and drive!
Watch for traffic when operating near or crossing roadways.
Turn curves or go up or down hills only at a low speed and at a gradual steering angle. Make certain that at
least 20% of the tractor’s weight is on the front wheels to maintain safe steerage. Slow down on rough or
uneven surfaces, and loose gravel.
Use extreme care and maintain minimum ground speed when transporting on hillside, over rough ground and
when operating close to ditches or fences. Be careful when turning sharp corners.
Never allow riders on either power unit or stump grinder. Falling off can kill.
Be a safe and courteous driver. Always yield to oncoming traffic in all situations, including narrow bridges,
intersections, etc.
Do not exceed 20 mph (32 kph). Reduce speed on rough roads and surfaces.
TRANSPORT SAFETY

12
SAFETY INSTRUCTIONS (continued)
MAINTENANCE SAFETY
Good maintenance is your responsibility. Poor maintenance is an invitation to trouble.
Before working on this machine, drive to a level area, disengage the PTO, lower implement (or if working
underneath, raise and block securely), shut off the engine, set the brakes, and remove the ignition keys.
Remove hydraulic pressure prior to doing any maintenance. Operate the remote hydraulic control lever in and
out several times to relieve hydraulic pressure.
Be certain all moving parts on attachments have come to a complete stop before attempting to perform
maintenance.
Never work under equipment unless it is blocked securely. Never depend on hydraulic system to keep imple-
ment in raised position.
Always use personal protection devices such as eye, hand and hearing protectors, when performing any
service or maintenance.
Keep all persons away from operator control area while performing adjustments, service, or maintenance.
Periodically tighten all bolts, nuts and screws and check that all cotter pins are properly installed to ensure unit
is in a safe condition.
When completing a maintenance or service function, make sure all safety shields and devices are installed
before placing unit in service.
Never use your hands to locate a hydraulic leak on attachments. Use a small piece of cardboard or wood.
Hydraulic fluid escaping under pressure can penetrate the skin.
Openings in the skin and minor cuts are susceptible to infection from hydraulic fluid. If injured by escaping
hydraulic fluid, see a doctor at once. Gangrene and death can result. Without immediate medical treatment,
serious infection and reactions can occur.
Check to ensure all safety signs are installed and in good condition.
Where replacement parts are necessary for periodic maintenance and servicing, genuine factory replacement parts
must be used to restore your equipment to original specifications. The manufacturer will not claim responsibility for use
of unapproved parts and/or accessories and other damages as a result of their use.
If equipment has been altered in any way from original design, the manufacturer does not accept any liability for injury
or warranty.
Frequently check carbide tipped cutting teeth. They should be sharp, free of nicks and cracks and securely fas-
tened. Rotate teeth for even wear – outer teeth wear faster.

13
SAFETY INSTRUCTIONS (continued)
Following operation, or when unhooking, stop the tractor, set the brakes, lower ram to lowest position and
engage transport lock pin, shut off the engine, relieve hydraulic pressure and remove the ignition keys.
Store the unit in an area away from human activity.
Do not park equipment where it will be exposed to livestock for long periods of time. Damage and livestock
injury could result.
Do not permit children to play on or around the stored unit.
Make sure all parked machines are on a hard, level surface and engage all safety devices.
If blocking is used, make sure it is solid and secure before leaving area.
STORAGE SAFETY
Keep safety signs clean and legible at all times.
Replace safety signs that are missing or have become illegible.
Replaced parts that displayed a safety sign should also display the current sign.
Safety signs are available from your Distributor or Dealer Parts Department or the factory.
How to Install Safety Signs:
• Be sure that the installation area is clean and dry.
• Be sure temperature is above 50°F (10°C).
• Decide on the exact position before you remove the backing paper.
• Remove the smallest portion of the split backing paper.
• Align the sign over the specified area and carefully press the small portion with the exposed sticky backing in place.
• Slowly peel back the remaining paper and carefully smooth the remaining portion of the sign in place.
• Small air pockets can be pierced with a pin and smoothed out using the piece of sign backing paper.
SAFETY SIGNS

14
WARNING
540 RPM SPEED
RANGE ONLY
HIGHER PTO SPEEDS CAN CAUSE
PERSONAL INJURY AND
EQUIPMENT FAILURE 101101
SAFETY SIGNS
REMEMBER: If Safety Signs have been damaged, removed, become illegible or parts replaced without Signs,
new Safety Signs must be applied. New Safety Signs are available from your authorized distributor or factory.
BE CAREFUL! Use a clean, damp cloth to clean safety decals. Avoid spraying to close to decals when using
a pressure washer; high-pressure water can enter through very small scratches or under edges of decals causing them
to peel or come off.

15
REMEMBER: If Safety Signs have been damaged, removed, become illegible or parts replaced without Signs,
new Safety Signs must be applied. New Safety Signs are available from your authorized distributor or factory.
BE CAREFUL! Use a clean, damp cloth to clean safety decals. Avoid spraying to close to decals when using
a pressure washer; high-pressure water can enter through very small scratches or under edges of decals causing them
to peel or come off.
SAFETY SIGNS (continued)

16
The model SG-26 requires a tractor of at least 22 hp or
up to a maximum of 45 hp and a Category I, 3 pt. hitch.
The model SG-36 requires a tractor of at least 45 hp or
up to a maximum of 100 hp and a Category I or II, 3 pt.
hitch.
The tractor also needs lift arm stabilizer bars or sway
blocks to control side movement of the stump grinder.
Adjust as tightly as practical for best performance.
Check the tractor’s 3 pt. hydraulic lift system. Refer to
your tractor operator’s manual or dealer for any adjust-
ments necessary to put the hydraulic system in good
working order. (I&T shop manuals will list most specifica-
tions and adjustment instructions – available from most
farm equipment dealers.)
Tractor must be equipped with two (2) independent pair
of remote hydraulic outlets to operate these stump
grinders.
Be sure tires and rims are in good condition. Inflate tires
to the proper recommended air pressure.
Check the tractor master shield over the PTO stub shaft.
Make sure it is in good condition and fastened securely
to the tractor. Purchase a new shield if old shield is
damaged or missing. (You may have to use a tractor
salvage yard for replacement parts on older tractors.)
It is recommended that a ROPS (Roll-Over Protection
Structure) and a seat belt be installed on all tractors.
Keep foldable ROPS systems in “locked up” position at all
times. Contact your local dealer for a ROPS for your
tractor.
Most swinging drawbars will have to be moved to a
forward position or removed. Check the tractor swing-
ing drawbar for interference with the front of the stump
grinder. The swinging drawbar can be moved forward on
some tractors or it can be removed.
It is recommended that only tractors with wide front
axles be used with these stump grinders. Tricycle front
wheel arrangements are inherently unstable and tractor
roll-over accidents are more likely to occur.
Be sure your tractor is in good condition. Read all
the safety precautions and make sure all tractor
operators are familiar with the safety rules of
operation.
Figure 1. Tractor Stability
When using the unit, a minimum 20% of tractor and
equipment weight must be on tractor front wheels.
Without this weight, tractor could tip up, causing
possible loss of control and possible personal injury
or death. The weight may be attained with a front end
loader, front wheel weights, ballast in tires or front
tractor weights. When attaining a minimum 20% of
tractor and equipment weight on the front wheels,
you must not exceed the ROPS weight certification.
Weigh the tractor and equipment. DO NOT GUESS
OR ESTIMATE!
A heavy load can cause instability in driving a
tractor. Make sure the front of the tractor is properly
counterbalanced with weights. Always drive slowly
– especially around turns. An unstable tractor could
steer badly and possibly tip over, causing injury or
death.
The operator is responsible for the safe operation of this
stump grinder. The operator must be properly trained.
Operators should be familiar with the stump grinder and
tractor and all safety practices before starting operation.
Read the safety rules and safety signs on pages 5-15.
TRACTOR REQUIREMENTS
AND PREPARATION
——————————————————
The models SG-26 and SG-36 PTO driven stump
grinders are designed to mount on tractors that have a 3
pt. hitch and a 540 rpm PTO (power takeoff) in good
working condition.
INSTRUCTIONS
WARNING
WARNING
CAUTION

17
This unit is shipped almost completely assembled.
Carefully follow instructions for final assembly.
Before attempting assembly check the following items.
Having all the needed parts and equipment readily at
hand will speed up your assembly task and will make the
job as safe as possible.
• Refer to the repair parts drawing in this manual to get
an idea of how the parts need to be assembled for
each individual implement model.
• Check for fasteners and pins that were shipped with
the stump grinder. All hardware coming from the facto-
ry has been installed in the location where it will be
used. If a part or fastener is temporarily removed for
assembly reasons, remember where it goes. Keep the
parts separated.
• Have a fork lift or loader along with chains and safety
stands that are sized for the job ready for the assem-
bly task.
• Have a minimum of 2 people at hand during assembly.
• Check to see that all nuts are tightened.
Never let anyone stand between the rear of the tractor
and the stump grinder while the tractor is backing up.
Always stand to the side until tractor has come to a com-
plete stop and the brakes set or the tractor shift placed in
“PARK.”
1) Back tractor to align lift arms with stump grinder hitch
points.
2) Attach both lower lift arms to stump grinder. Secure
with linch pins. Tractor lift arm stabilizer bars or sway
blocks must be used to control side movement of the
stump grinder. DO NOT CONNECT THE PTO DRIV-
ELINE AT THIS TIME.
3) Install suitable top link between tractor and stump
grinder. Secure with link pins and linch pins.
4) Lift stump grinder and check to see that both 3 pt. lift
arms are the same height. Adjust using crank if nec-
essary to level the implement from side to side.
To avoid bodily injury caused by accidental falling
of stump grinder, securely support stump grinder on
safe supporting stands or blocks!
INSTRUCTIONS (continued)
1. Drive Shield
2. Bolt
3. Nut
4. Gearbox Input Shaft
5. Gearbox Input Shield
Figure 2. Slip Clutch Driveline Installation
Align the holes in the driveline yoke and the groove in
the gearbox input shaft and install bolts (2) and nuts (3).
Lubricate rear driveline half and install front driveline
half.
In some cases it will be necessary to shorten the PTO
assembly to match your particular tractor. The following
procedure should be used:
1. Raise the tractor 3 pt. hitch so the input shaft of the
gearbox is in line with the PTO shaft on the tractor.
Shut down tractor, leaving stump grinder in position of
shortest distance between shafts. SECURELY
BLOCK IMPLEMENT IN POSITION.
TRACTOR 3 PT. ASSEMBLY
AND MOUNTING
——————————————————
PTO DRIVELINE INSTALLATION
——————————————————
On new stump grinders, check PTO driveline for correct
length for use with your tractor. (Read page 18.)
Most swinging drawbars will have to be moved to a
forward position or removed. Check the tractor swing-
ing drawbar for interference with the PTO driveline before
attempting to lift the stump grinder with the 3 pt. hitch.
Tractor lift arm stabilizer bars or sway blocks must be
used to control side movement of the stump grinder.
A new slip clutch, or one that has been in storage over
the winter may seize. Before operating, make sure it will
slip. Refer to slip clutch adjustment on page 27.
CAUTION

18
INSTRUCTIONS (continued)
Figure 3
NOTE: The use of a PTO over-running clutch or exten-
sion could require that the PTO driveline be shortened a
considerable amount. If this is done, the driveline halves
may separate when the stump grinder is lowered to the
ground or when operated on uneven ground.
NOTE: Because of the above situation, and the use of
PTO extensions extend the front PTO driveline joint
beyond the protection of the tractor PTO shield, the use
of PTO extensions and over-running clutches of this type
are not recommended.
4. Swing and lower the stump grinder wheel to deter-
mine position with greatest distance between the PTO
shaft and gearbox input shaft. Shut tractor off, leaving
stump grinder in position of greatest distance between
shafts. SECURELY BLOCK STUMP GRINDER IN
POSITION.
5. Hold driveline sections parallel to each other and
check for minimum 6” (15cm) overlap. If driveline
has been marked for cutting, overlap will be the
distance between the two marks. If driveline has less
than minimum overlap, do not use. Contact authorized
Worksaver dealer.
SLIP CLUTCH DRIVELINE INSTALLATION (cont.)
2. Pull driveline apart. Attach outer (female) section to
tractor PTO shaft. Pull on driveline section to be sure
that yoke locks into place.
3. Hold driveline sections parallel to each other to
determine if too long. Each section should end
approximately 3” (76mm) short of reaching universal
joint shield on opposite section. If too long, measure
3” (76mm) back from universal joint shield and mark
on opposite section (Figure 3). Do this for both sec-
tions. DO NOT CUT UNTIL STEPS 4 AND 5 ARE
CHECKED.
Figure 5
Figure 4
6. If driveline must be cut to a shorter length, clamp
driveline in a well padded vise to prevent damage to
the shield. Cut off shield where marked. Using cut-off
section of shield as a guide, cut shaft the same
amount. (Figure 5.)
7. Repeat the procedure to the other driveline half.
Remove all burrs and cuttings.
8. Apply multi-purpose grease to inside of outer (female)
driveline section. Assemble driveline and install on
tractor and stump grinder. Pull on each driveline sec-
tion to be sure yokes lock into place. Make certain dri-
veline shielding is in place and in good condition.
9. Carefully raise, lower, and swing the stump grinder
wheel and check to be sure the PTO assembly does
not jam. If it does, cut equal amounts from each half of
the PTO assembly.

19
Figure 6. Stump Grinder Hydraulic Diagram
INSTRUCTIONS (continued)
SLIP CLUTCH DRIVELINE INSTALLATION (cont.)
10. Check the swinging drawbar of the tractor and make
sure the PTO driveline assembly will not contact. The
swinging drawbar can be moved forward on some
tractors or it can be removed.
If the PTO driveline assembly contacts the swinging
drawbar, damage will occur to the driveshaft shield and
possibly the driveshaft itself. (NOT covered under
warranty.)
When attaching PTO yoke to tractor PTO shaft, it is
important that spring-activated locking pin or balls
operate freely and are seated in groove on PTO shaft.
A loose shaft could slip off and result in personal
injury or damage to equipment.
Route the hoses to your tractor remote hydraulic
couplers. Be sure to allow a loop of hose just behind the
attachment to allow for the angles that will be
encountered. Make sure that the hoses are routed so
they will not be pinched or snagged by implement or
tractor parts. Fasten the hoses securely so they will
remain in the correct position and not drop down where
they could be pinched or sheared.
After making the hose connection between the tractor
remote outlets and the hydraulic cylinders, operate the
cylinders several times to work the air out of the system.
Check hydraulic fluid level in your tractor after filling the
cylinders and hoses.
NOTE: If your tractor has a closed center hydraulic
system, turn the flow control on the remote hydraulic
outlet block to minimum flow.
If your tractor does not have a flow control, contact
Worksaver, Inc. for a restrictor orifice fitting to reduce the
flow. This will minimize the heat build up in the tractor
closed center hydraulic system.
Order optional throttle valve #2505642 for closed
center systems (see page 32 for location).
Escaping hydraulic fluid under pressure can pene-
trate the skin, causing serious injury.
DO NOT use your hand to check for leaks. Use a
piece of cardboard or paper to search for leaks.
Stop engine and relieve pressure before connecting
or disconnecting lines.
Tighten all connections before starting engine or
pressurizing lines.
If any fluid is injected into the skin, obtain medical
attention immediately, or gangrene may result.
INSTRUCTIONS
——————————————————
ASSEMBLY (continued)
——————————————————
Check the hydraulic hose routing and connections as
shown in Figure 6. The hydraulic cylinder circuit that
swings the stump grinder left to right has a pressure relief
valve to control the side pressure. Connect this relief
valve as shown.
Use a good thread sealant. (DO NOT USE TEFLON
TAPE as this could cause hydraulic system problems in
your tractor.)
The hydraulic circuits for both cylinders contain an
orifice to provide a controllable rate of movement (#8).
GEARBOX OIL FILL
——————————————————
NOTE: The gearbox is shipped WITHOUT lubricant, so it
will be necessary to fill it before use. With the gearbox in
a level position, fill to the side inspection hole with a good
90 wt. gear lubricant. Check often and add lubricant if
necessary.
GEARBOX OIL CAPACITY
Model SG-26 2 pints
Model SG-36 6 pints
WARNING
DANGER