STUMP BLASTER 3P24, 3P34 and 3P40
OPERATOR’S MANUAL
D001655
Issue Date July 2018
TABLE OF CONTENTS
1. INTRODUCTION ................................................................................................................................... 1
1.1 Overview ....................................................................................................................................... 1
1.2 Intended Use And Foreseeable Misuse ..................................................................................... 1
2. SAFETY ................................................................................................................................................ 2
2.1 Safety Alert Symbol And Safety Words ..................................................................................... 2
2.2 Operational Hazards .................................................................................................................... 2
Prepare for Emergencies ............................................................................................................ 3
Replace Safety Signs .................................................................................................................. 3
Do Not Allow Riders .................................................................................................................... 3
Lower Operating Speed .............................................................................................................. 3
Avoid Rollover ............................................................................................................................. 3
Avoid Powerlines & Underground Utilities ............................................................................... 4
Detach Stump Grinder Safely ..................................................................................................... 4
Hazards from Modifying Equipment .......................................................................................... 4
Avoid Wood Dust Inhalation ....................................................................................................... 5
2.3 Maintenance Hazards .................................................................................................................. 6
3. SAFETY SIGNS .................................................................................................................................... 8
4. ASSEMBLY ......................................................................................................................................... 10
4.1 Remove Stump Grinder From Pallet ........................................................................................ 10
4.2 Attach Driveline ..........................................................................................................................11
4.3 Driveline Dimension .................................................................................................................. 12
5. OPERATION ....................................................................................................................................... 13
5.1 Preparation For Use .................................................................................................................. 13
5.2 Pre-Operation Check List ......................................................................................................... 14
5.3 Machine Components ............................................................................................................... 14
5.4 Attaching Stump Grinder To Tractor ........................................................................................ 15
5.5 Detaching Stump Grinder From Tractor .................................................................................. 17
5.6 Transporting ............................................................................................................................... 18
5.7 Adjusting Swing Speed ............................................................................................................. 18
5.8 Carbide Teeth Break-In.............................................................................................................. 19
5.9 First Time User Tips .................................................................................................................. 19
5.10 Field Operation ........................................................................................................................ 20
6. SERVICE AND MAINTENANCE ......................................................................................................... 22
6.1 Service ........................................................................................................................................ 22
6.1.1 Replace Cutting Teeth ........................................................................................................ 22
6.1.2 Replace Hydraulic Hoses ................................................................................................... 23
6.1.3 Adjust Slip Clutch ............................................................................................................... 24
6.2 Maintenance ............................................................................................................................... 25
6.2.1 Every 6 Hours ..................................................................................................................... 25
6.2.2 Every 10 Hours ................................................................................................................... 25
6.2.3 Every 200 Hours ................................................................................................................. 26
7. TROUBLESHOOTING ........................................................................................................................ 27
8. STORAGE ........................................................................................................................................... 28
8.1 Storing Grinder .......................................................................................................................... 28
8.2 Removing Grinder From Storage ............................................................................................. 28
9. WARRANTY ........................................................................................................................................ 29
ii
1. INTRODUCTION
1.1 Overview
Congratulations on your choice of a Baumalight
3-Point Stump Grinder to complement your stump
grinding operation. This equipment has been
designed and manufactured to meet the needs
of a discriminating buyer for efcient grinding of
stumps.
Model 3P24 has 34 teeth on a 24 in. cutter and
models 3P34 and 3P40 have 54 teeth on a 34
in. cutter. This means less cutting for each tooth
resulting in longer tooth life and smoother cutting
for less wear on the tractor. Heavy tooth population
makes ner mulch and smoother operation.
The cutting wheel is powered by the PTO (540)
on your tractor with the swing and lift cylinders
activated by the standard remote hydraulic
connectors on the tractor.
Grease zerks and replaceable brass bushings are
provided at major pivot points for extended service
life.
The debris shields is standard equipment on all
stump grinders. It is recommended that the stump
grinder never be operated without one.
When this machine is worn out and no longer in
use, it should be returned to the retailer or other
party for recycling.
OPERATOR ORIENTATION - The directions left,
right, front and rear, as mentioned throughout this
manual, are as seen from the tractor driver’s seat
and facing in the direction of travel.
1.2 Intended Use And Foreseeable
Misuse
The stump grinding tool is designed to be used
by experienced operators, trained in the safe
operation of a tractor and trained in the hazards
related to using the stump grinder and the safe use
of the grinder for the intended purpose. Operators
will require personal protective equipment to
reduce the risk from some hazards that cannot be
completely eliminated or controlled by the design
of the tool.
Each model in the family is intended to be used
within the stump size limits shown in the catalog
and in the implement specications in the manual.
Safe, efcient and trouble free operation of your
Stump Grinder requires that you and anyone
else who will be operating or maintaining the
Stump Grinder, read and understand the Safety,
Operation, Maintenance and Troubleshooting
information contained within the Operator’s
Manual.
This manual covers the Baumalight 3-Point Stump
Grinder, models 3P24, 3P34 and 3P40. Use the
Table of Contents as a guide to locate required
information.
Keep this manual handy for frequent reference
and to pass on to new operators or owners. Call
your Baumalight dealer, distributor or the factory
if you need assistance, information or additional
copies of the manuals.
Care is required to ensure that the stump grinding
tool will not come across metallic objects, stones
or other materials harder than a typical stump
while grinding.
The Stumpblaster stump grinding tools are not
designed for use in hazardous atmospheres
where there is a risk of re or explosion due to
ammable gases or vapors. Use in hazardous,
explosive atmospheres is prohibited.
Serious injury or death of the operator or
bystanders may be caused if the tool is misused.
Misuse may also cause damage to the tractor
carrying the implement.
1
2. SAFETY
2.1 Safety Alert Symbol And Safety
Words
You must read, understand and follow the
instructions given by the operating unit
manufacturers, as well as the instructions in this
manual.
The safety information in this manual is denoted by
the safety alert symbol:
^
This symbol means ATTENTION! BECOME
ALERT! YOUR SAFETY IS INVOLVED!
The level of risk is indicated by the following signal
words:
^ DANGER
DANGER - Indicates a hazardous
situation, which, if not avoided, WILL
result in death or serious injury.
2.2 Operational Hazards
^ WARNING
Prevent serious injury or death.
Read and understand this manual before
operating stump grinder.
Always stop engine and remove key
before leaving operators seat.
Never allow anyone near the stump
grinder during operation.
Travel at a safe speed.
^ WARNING
Prevent serious injury or death from
moving parts.
Moving parts can crush and dismember.
^ WARNING
WARNING - Indicates a hazardous
situation, which, if not avoided, could
result in death or serious injury.
^ CAUTION
CAUTION - Indicates a hazardous
situation, which, if not avoided, could
result in minor or moderate injury.
NOTICE
NOTICE - Indicates a situation that could
result in damage to the equipment or
other property.
Do not operate without guards and
shields in place.
Disconnect and lock out power source
before adjusting or servicing.
^ WARNING
Use stump grinder only for the designed
applications.
Any other use may result in personal
injury, damage to equipment and may
void the warranty.
^ WARNING
Prevent serious injury or death.
Verify stump grinder is attached to
tractor before operation or transport.
2
Carefully read all safety messages in this manual
and on equipment safety signs. Keep safety signs
in good condition and replace missing or damaged
safety signs.
New equipment components and repair parts must
include the current safety decal.
Learn how to properly operate equipment.
NEVER operate or work around this equipment
without proper instruction, while fatigued or under
the inuence of alcohol, prescription or non-
prescription medication or if feeling ill.
Keep your equipment in proper working condition.
Know the regulations and laws that apply to you
and your industry. This manual is not to replace
any regulations or laws. Additional information
may be found at: www.asae.org or www.osha.gov.
If you do not understand any part of this manual,
contact Baumalight at 866-820-7603.
Prepare for Emergencies
Replace Safety Signs
• Replace missing or damaged safety signs.
• Safety signs are identied in Section 3 of this
manual.
• Replacement safety signs are available from
your Baumalight dealer.
Do Not Allow Riders
• NEVER lift or carry anyone with stump grinder.
• NEVER use stump grinder as a work platform.
• NEVER allow passengers on stump grinder.
Lower Operating Speed
• Lower operating speed while loading,
unloading or performing heavy operations.
• Keep load low and move at slow speeds on
rough or uneven terrain.
• Be prepared in case of emergencies.
• Keep a re extinguisher and rst aid kit close
to the machine.
• Keep emergency phone numbers close to your
phone.
• Know your address so emergency services
can locate you if an emergency arises.
Avoid Rollover
The equipment may rollover, resulting in death or
serious injury. To help prevent rollover:
• Travel at a slow speed.
• Avoid sharp turns & sudden movement on
slopes.
• Carry loads close to the ground.
• Avoid holes, ditches and other obstructions
which may cause equipment to rollover.
• Balance load so weight is evenly distributed
and load is stable.
• Use caution when operating on slopes and do
not operate on excessively steep slopes.
• Do not exceed load capacity of equipment.
3
Avoid Powerlines & Underground
Utilities
• Check clearance before raising equipment.
• Have local utilities locate and mark buried
wires, cables, pipelines and other hazards
before grinding.
^^ DANGER
A raised stump grinder can lower unexpectedly,
resulting in death or serious injury.
NEVER enter area under a raised stump grinder
unless stump grinder is properly and safely
supported.
Lower stump grinder to ground, engage parking
brake, shut off engine and remove key before
servicing.
Prevent electrocution.
Death or serious injury can result if
equipment comes near or contacts
power lines.
Electrocution can occur without direct
contact.
DO NOT leave the operator’s seat if any part of the
equipment contacts electric lines or cables.
Detach Stump Grinder Safely
Detach stump grinder on a rm and level surface.
Stump grinder may fall over if detached on sloping
or soft surface. Be sure people, livestock and pets
are clear of machinery.
Relieve hydraulic pressure before disconnecting
hydraulic hoses. See your tractor Operator’s
Manual.
Avoid Loud Noise
^ WARNING
Prolonged exposure to loud noise can
cause impairment or loss of hearing.
Wear a suitable hearing protective
device such as earmuffs or earplugs
to protect against objectionable or
uncomfortable loud noises.
Hazards from Modifying Equipment
Do not make any alterations to your stump
grinder. Altering the equipment may cause unsafe
conditions and may void the manufacturer’s
warranty.
Stay Clear of Rotating Drivelines
^ WARNING
Raised Attachment
^ WARNING
Crushing hazard.
Raised, unsupported stump grinder can
fall, resulting in death or serious injury.
Never enter the area under a raised stump
grinder unless properly supported.
4
Entanglement in a rotating driveline can
cause serious injury or death.
Keep tractor shields and driveline
shields in place at all times. DO NOT
operate without drive line guards.
DO NOT wear loose tting clothing.
Avoid High Pressure Fluids
Avoid Wood Dust Inhalation
^ WARNING
Pressurized uids can penetrate the
skin.
Hydraulic hoses can fail from age,
damage and exposure.
Use body and face protection while
searching for leaks. A tiny, almost
invisible leak can penetrate the skin,
thereby requiring immediate medical
attention.
Use wood or cardboard to detect
hydraulic leaks, never use your hands.
Escaping uid under pressure can penetrate the
skin causing serious injury.
Prevent the hazard by relieving pressure (See
tractor Operator’s Manual.) before connecting or
disconnecting hydraulic lines. Verify all connections
are tight before applying pressure.
^ WARNING
Wear an approved respirator (N95 Type
as a minimum).
Follow local, state and federal
regulations.
The health effects from exposure to wood dust
are due to chemicals in the wood or chemical
substances in the wood created by bacteria, fungi,
or moulds.
Search for leaks with a piece of cardboard or wood.
Protect hands and body from high pressure uids.
If an accident occurs, see a doctor immediately.
Any uid injected into the skin must be surgically
removed within a few hours or serious infection
may result.
5
2.3 Maintenance Hazards
Before servicing, park machine on a rm and
level surface, set parking brake, chock wheels,
and place a “Do Not Operate” tag on control
panel. Read and understand this manual. If you
do not understand any part of the manual, contact
Baumalight at 866-820-7603.
Always wear face and/or eye protection, safety
shoes, and other protective equipment appropriate
for the job.
Do not make unauthorized modications. Contact
Baumalight at 866-820-7603 before you weld, cut/
drill holes, or make any other modications.
Always use Baumalight replacement parts.
^ WARNING
Moving parts can crush and cut.
Keep clear of moving components.
Follow lockout procedure before
servicing.
^ WARNING
Entanglement hazard.
Keep clear of moving components.
Wear proper protective equipment
appropriate for the job.
^ WARNING
Burn hazard.
Hot and high pressure hydraulic oil.
Allow oil to cool before servicing.
^ WARNING
Crushing hazard.
Before performing inspections, service
or maintenance:
Park machine on rm, level surface.
Engage parking brake.
Turn engine off and remove key.
Place “Do Not Operate” tag on control
panel.
6
7
3. SAFETY SIGNS
Dashes lines indicate items hidden from
view.
8
A. MTB-108 Safety Sign
B. MTB-180 Safety Sign
D. MTB-182 Safety Sign
C. MTB-175 Safety Sign
E. MTB-179 Safety Sign
9
4. Assembly
4.1 Remove Stump Grinder From
Pallet
^ WARNING
Approximate weight of grinder is:
• 3P24 - 642 lbs (291 kg)
• 3P34 - 1231 lbs (558 kg)
• 3P40 - 1280 lbs (581 kg)
Stump Grinder is top heavy when
attached to pallet. Move with caution.
Do not position feet around or under
pallet.
To prevent injury from accidental
lowering of grinder, attach an adequate
lifting device to lifting eye on stump
grinder.
A
1. Remove crate material from pallet.
2. Attach an adequate lifting device to lifting eye
(A) on stump grinder.
3. Remove all shipping bands, wires and loose
parts from around stump grinder.
4. Slowly lift the weight of stump grinder off the
pallet. Remove pallet from work area.
5. Lower stump grinder, so that the stabilizing foot
reaches the ground.
6. Stabilize the machine and continue lowering
the rest of the way down.
7. Remove lifting device.
10
4.2 Attach Driveline
A
B
1. Remove four cap screws (A), washers and
cover (B).
2. Remove nut and bolt from drive line.
3. Attach drive line (C) to gear box shaft (D).
4. Install nut and bolt in drive line.
5. Install cover, four washers and cap screws.
6. Attach safety shield chain (E) as shown.
E
D
C
11
4.3 Driveline Dimension
To accompany the variety of 3 point hitch geometry
available today, the driveline can be too long for
some machines or too short for others. It is very
important that the driveline be free to telescope but
not to bottom out when going through its working
range. If the driveline bottoms out, the bearings
on both the machine and tractor PTO shaft will be
overloaded and fail in a short time.
To determine the proper length of the driveline,
follow this procedure:
1. Attach stump grinder to tractor but do not
attach driveline.
2. Raise grinder until the input shaft is level with
tractor PTO shaft.
3. Measure dimension (A) between locking
grooves on tractor PTO shaft and grinder input
shaft.
4. Measure same dimension (B) on compressed
driveline.
1. Subtract machine dimension (A) from uncut
driveline dimension (B). This dimension
determines how much too long the driveline is.
2. Add 1 in. (25 mm) to the dimension to be sure
it doesn’t bottom out, to determine cut off
dimension (C).
3. Use a hacksaw to cut dimension (C) from both
ends. Cut both plastic tubes and metal cores.
5. If compressed driveline dimension (B) exceeds
the machine dimension (A), driveline must be
cut.
When cutting driveline, follow this procedure:
12
4. Use a le to remove burrs from cut edges.
5. Assemble shaft.
6. Make sure shaft can telescope freely. If it does
not, separate and inspect for burrs or cuttings
on shaft ends. Be sure it telescopes freely
before installing.
5. OPERATION
5.1 Preparation For Use
^ WARNING
Wear an approved respirator (N95 Type
as a minimum).
Follow local, state and federal
regulations.
The health effects from exposure to
wood dust are due to chemicals in the
wood or chemical substances in the
wood created by bacteria, fungi, or
moulds.
Although the Stump Grinder has been carefully
inspected and checked prior to shipment from
manufacturer, it is recommended that the unit be
thoroughly inspected.
Check all bolts for tightness and remove all shipping
tags, bags, skids, and blocking. Check swing
frame to ensure that it is free from obstruction and
can operate smoothly without binding.
Remove any masking materials afxed during
painting. Inspect the tractor and any accessory
equipment to verify that nameplates and all safety
warning, caution signs and decals provided with
the equipment are in place and clearly visible.
Verify the three linch pins are securely fastened.
Visually inspect the unit before each start up.
Check for loose or missing parts and any damage
that may have occurred during moving or shipping.
Review all tractor pre-start instructions, and ensure
that all recommended steps and procedures have
been followed. Never bar over the rotor, This could
cause damage and result in personal injury or
equipment damage.
NOTE: Always keep the weight of the machine in
mind. Never position body in line of impact.
13
5.2 Pre-Operation Check List
F
Check-mark Check these items: Frequency
Check the three lynch pins on the hitch to verify they are
securely fastened.
Check the hydraulic uid level to verify there is sufcient uid
in the system.
Check hydraulic lines for breaks and punctures. Each operation.
Verify hydraulic lines are plugged in securely. Each operation.
Verify hydraulic lines are tied well away and cannot bind or
be pinched.
Check the cross bolts that secure the 9 pivot pins. Each operation.
Verify the pins on each end of the drive shaft are secured. Each operation.
Verify the safety chains on the drive shaft are securely
attached to the cover.
Verify the cutting tips on the cutting wheel are tight. Every 4 hours.
Grease 2 pins on the deector shield. Every 6 hours.
Grease all 9 pivot pins. Every 10 hours.
Check the oil in the stump grinder’s gearbox. For type and
quantity refer to the maintenance section.
Each operation.
Each operation.
Each operation.
Each operation.
Every 200 hours.
5.3 Machine Components
A. Manual Storage Tube
B. 3-Point Top Link
C. 3-Point Lift pins
D. Raise/Lower Cylinder
E. Cutting Wheel Shield
F. Debris Shield
G. Cutting Wheel
H. Gear Box
I. Slip Clutch Shield
J. Swing Cylinder
K. Resting Foot
L. Drive Line w/ Slip Clutch
B
D
A
E
C
L
JK
I
H
G
14
5.4 Attaching Stump Grinder To
Tractor
^ WARNING
To prevent injury or machine damage
put transmission in “Park” and check
the full range of hitch for interference,
binding or PTO separation.
Never position yourself between tractor
and stump grinder.
Only experienced and properly trained
operator’s should operate the tractor
and stump grinder.
1. Back up tractor to stump grinder with hitch
points approximately in alignment.
2. Engage tractor park brake and/or place
transmission in “Park”.
3. Shut off engine and remove key.
A
B
4. Attach lower links to grinder and retain using
lynch pins (A). To avoid machine damage,
verify lynch pins are locked on lower links.
5. Align top link with hole in top of frame and
retain with pin (C) and lynch pin (B). To avoid
machine damage, verify lynch pin is locked on
pin (C).
6. Pull collar (D) back toward the grinder. Align
splines on tractor PTO shaft and drive line by
rotating grinder drive line. Push drive line onto
PTO shaft until it snaps into place.
7. Pull back on drive line to make sure it is locked
on shaft.
8. Attach safety shield chain (E) as shown.
C
D
E
15
9. Plug in hydraulic hoses (F) to the tractor’s rear
SCV’s. See your tractor Operator’s Manual.
F
10. Verify hydraulic hoses are clear of pinch areas.
11. Retain hydraulic hoses to top bar of hitch. Verify
hoses do not interfere with drive line.
12. Adjust top link so that the stump grinder A-frame
is vertical to the ground.
13. If equipped with S1050 Adapter Bracket Remove lock pins from positions (G) and
pivot S1050 adapter brackets to a comfortable
operating position. Install lock pins at positions
(G).
G
^ WARNING
Pressurized uids can penetrate the
skin.
Hydraulic hoses can fail due to physical
damage, age, kinks and exposure. Check
hoses regularly. Replace damaged
hoses.
Use body and face protection while
searching for leaks. A tiny, almost
invisible leak can penetrate the skin,
thereby requiring immediate medical
attention.
Use wood or cardboard to detect
hydraulic leaks, never use your hands.
16
5.5 Detaching Stump Grinder From
Tractor
^ WARNING
Prevent serious injury or death caused
by unexpected movement:
1. Park tractor on a level surface.
2. Engage tractor park brake.
3. Disengage PTO.
4. Shut off engine and remove key.
1. Park tractor on a level surface.
2. Lower grinder to the ground.
3. Shut off engine and remove key.
4. Relieve hydraulic pressure. See your tractor
Operator’s Manual.
C
B
5. Disconnect hydraulic hoses (A).
6. Disconnect drive line safety chain (B).
7. Support drive line with your hand.
8. Pull collar (C) back toward grinder and slide
off shaft.
9. Remove lynch pin (F) and pin (E).
10. Place top link in storage position.
11. Remove lynch pins (D) from both lower links.
D
E
F
A
17
5.6 Transporting
1. Verify all reectors and Slow Moving Vehicle
(SMV) sign are visible.
^ WARNING
Prevent injury and equipment damage.
S1050 adapter bracket may contact
operator or tractor when stump grinder
is raised.
Place adapter bracket in fully retracted
position before raising stump grinder.
2. If equipped with S1050 Adapter Bracket Remove lock pins from positions (A) and pivot
S1050 adapter bracket to the fully retracted
position as shown. Install lock pins in positions
(A).
3. Raise stump grinder to fully raised position.
4. Center the grinder directly behind the tractor
for greater stability.
5. Verify tractor PTO is disengaged.
6. Travel at a reasonable and safe speed.
^ WARNING
To prevent bodily injury from rotating
cutting wheel, be sure to disengage
PTO before transporting grinder.
5.7 Adjusting Swing Speed
1. The swing speed of the grinder can be adjusted
by turning the adjustment knob (A) on the ow
control valve. Do this with grinder in raised
position.
2. To adjust the speed of the grinder to the slowest
setting, turn the adjustment knob (A) until 1 is
visible on the white stalk in the center of the
knob. As you turn the knob, the stalk moves
from 1 to 4, with 1 being the slowest speed and
4 the highest speed.
3. It is recommended to start at position 1. Adjust
the speed up from that point.
A
A
18
5.8 Carbide Teeth Break-In
5.9 First Time User Tips
During the rst few hours of use, avoid hitting
stones as much as possible to allow the carbide
teeth to wear slightly. This can be done by keeping
the cutting wheel above ground level. Brand new
carbide tips are razor sharp and can chip and
shatter easily when they hit hard objects. Once
the razor sharpness has worn away, the tips do
not chip as easily. Observing these precautions
will extend the life of the carbide teeth and reduce
operating expenses.
Before you begin, make sure the tractor is turned
off and the PTO drive is disengaged.
Stand to the side of the stump grinder and observe
the center point on the bottom of the cutting
wheel. Now sit on the tractor seat and observe the
center point again. This point will appear different
depending on where you are positioned. This can
be very deceiving! Familiarize yourself with the
view of the stump grinder from the tractor seat.
Test all operating functions in an open area with the
tractor at idle speed to get a feel for the controls.
Take your time.
Start with a small stump. Make the rst pass then
disengage the PTO drive and get off the tractor to
see how much you have removed.
Get off the tractor after each pass to check the
progress. The cutting wheel is shielded from view
when sitting on the tractor seat so it is difcult to
accurately determine the progress. The ability to
judge the positioning improves with practice. Do
not expect to get the rst stump done quickly.
^ WARNING
Always turn off the tractor and disengage
the PTO drive before getting off the seat
and approaching the cutting wheel.
^ WARNING
Wear an approved respirator (N95 Type
as a minimum).
Follow local, state and federal
regulations.
The health effects from exposure to
wood dust are due to chemicals in the
wood or chemical substances in the
wood created by bacteria, fungi, or
moulds.
19
5.10 Field Operation
^ WARNING
Entanglement in a rotating drive line
can cause serious injury or death.
Keep tractor shields and drive line
shields in place at all times. DO NOT
operate without drive line guards.
DO NOT wear loose tting clothing.
^ WARNING
Prevent serious injury or death caused
by unexpected movement:
1. Park tractor on a level surface.
2. Engage tractor park brake.
3. Disengage PTO.
4. Shut off engine and remove key.
^ WARNING
^ WARNING
Clean machine thoroughly before
service or maintenance procedures.
The health effects from exposure to
wood dust are due to chemicals in the
wood or chemical substances in the
wood created by bacteria, fungi, or
moulds.
1. Attach stump grinder to tractor. See Attaching
Stump Grinder to Tractor in this section.
2. Adjust the stump grinder sweep speed. See
Adjusting Swing Speed of Grinder in this
section.
Note: All cutting is done on the left side of the
cutting wheel, not the bottom of the wheel.
3. If the stump is on a grade, position tractor
lower on the grade with the cutting wheel on
the stump grinder higher up the grade.
Never operate tractor when other people
are in the vicinity.
Do not allow riders on tractor.
^ WARNING
Never operate stump grinder when other
people are in the vicinity. Debris can be
thrown several feet from cutting area.
Keep all shields in place.
4. Back the tractor up to the front edge of the
stump (the edge that is closest to the tractor).
Lower the foot of the A-frame on the stump
grinder to rest squarely on the ground.
^ WARNING
Always turn off the tractor and disengage
the PTO drive before getting off the seat
and approaching the cutting wheel.
5. Disengage tractor PTO. Shut off engine and
remove key.
6. Get off the seat and check the position of the
stump grinder to the stump. Verify the grinder
is positioned at the edge of the stump that is
closest to the tractor.
Note: If you are working close to a fence or
building, the deector guard (A), that directs debris,
can be ipped up.
20
12. Reposition the tractor and stump grinder
as needed until the entire stump has been
removed to below ground level.
13. Follow the roots, taking as much of the larger
A
surface roots as possible. If these are not
removed they can, over time, protrude from the
ground in areas where there is a heavy freeze/
thaw cycle.
14. Throttle down the tractor to an idle.
15. Disengage tractor PTO.
16. Shut off engine and remove key.
^ WARNING
Raising the deector guard can allow
debris to travel a long distance. Be
aware of your surroundings.
7. Using the lift and swing levers to direct the
stump grinder, make the rst pass across the
front edge of the stump, moving the cutting
wheel from right to left in 3 - 6 in. (76 - 152
mm) passes. The size of the pass will depend
on the power and size of the tractor. Larger
passes can be handled by a larger tractor.
Return the grinder to the far right after each
pass.
8. Continue to take passes across the front edge
of the stump, taking 3 - 6 in. (76 - 152 mm) on
each pass.
9. When ground level is reached, continue to
grind 3 - 6 in. (76 - 152 mm) below the surface
to the bottom of the stump where the roots
branch out.
10. Lift the stump grinder and swing it to the far
right. Back the tractor up slightly to position the
stump grinder beside the new front edge of the
stump.
17. Get back on the tractor and turn it on. Engage
the PTO drive. If the tractor is equipped with
two remotes, use these levers to control lift and
swing. If the stump grinder is equipped with the
optional S1050 valve (B), use the levers on the
valve to control lift and swing.
B
^ WARNING
Never approach stump grinder before
cutting wheel has come to a complete
stop.
11. Make multiple passes over the front edge of
the stump, taking 3 - 6 in. (76 - 152 mm) on
each pass.
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6. SERVICE And MAINTENANCE
6.1 Service
^ WARNING
Pressurized uids can penetrate the
skin.
Hydraulic hoses can fail due to physical
damage, age, kinks and exposure. Check
hoses regularly. Replace damaged
hoses.
Use body and face protection while
searching for leaks. A tiny, almost
invisible leak can penetrate the skin,
thereby requiring immediate medical
attention.
Use wood or cardboard to detect
hydraulic leaks, never use your hands.
Prevent the hazard by relieving pressure (See
tractor Operator’s Manual.) before connecting or
disconnecting hydraulic lines. Verify all connections
are tight before applying pressure.
^ WARNING
Clean machine thoroughly before
service or maintenance procedures.
The health effects from exposure to
wood dust are due to chemicals in the
wood or chemical substances in the
wood created by bacteria, fungi, or
moulds.
6.1.1 Replace Cutting Teeth
1. Park tractor and grinder on a level surface.
2. Lower grinder to the ground.
3. Support grinder frame with safety stands.
4. Shut off engine and remove key.
5. Inspect cutting teeth for damage. Replace
individual teeth as needed.
6. Remove lock nut (A) and cutting tooth (B).
Protect hands and body from high pressure uids.
If an accident occurs, see a doctor immediately.
Any uid injected into the skin must be surgically
removed within a few hours or serious infection
may result.
^ WARNING
Prevent serious injury or death caused
by unexpected movement:
1. Park tractor on a level surface.
2. Engage tractor park brake.
3. Disengage PTO.
4. Shut off engine and remove key.
7. Install replacement tooth and lock nut. Tighten
lock nut (A) to 150 lb/ft (204 Nm) of torque.
Note: Parts breakdown can be found on
Baumalight’s website. www.baumalight.com
B
A
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6.1.2 Replace Hydraulic Hoses
1. Park tractor and grinder on a level surface.
2. Lower grinder to the ground.
3. Place wood block under cutting wheel and
lower cutting wheel to wood block.
4. Shut off engine and remove key.
5. Relieve hydraulic pressure. See your tractor
Operator’s Manual.
6. Remove hose (B) from cylinder.
7. Remove quick coupler and/or adapter (A) from
hose.
8. Install replacement hose in reverse order of
removal.
Note: Parts breakdown can be found on
Baumalight’s website. www.baumalight.com
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6.1.3 Adjust Slip Clutch
^ WARNING
Entanglement in a rotating drive line
can cause serious injury or death.
Disconnect and lockout power source
before adjusting or servicing.
^ CAUTION
Slip clutch may be hot. Wait for clutch to
cool before adjusting or servicing.
Bondioli Driveshafts
4-Disk 120 Hp 1,000 rpm
• OEM Part Number
• 71R8121UCKR80V6
• Dimension A - 0.236 in. (6 mm)
• Dimension B - 1.12 in. (28.5 mm)
4-Disk 165 Hp 1,000 rpm
• OEM Part Number
• CSHN086U2R100W8
• Dimension A - 0.275 in. (7 mm)
• Dimension B - 1.14 in. (29 mm)
B
A
Binacchi Drivehafts
2-Disk 68 Hp 540 rpm
• OEM Part Number
• B6140EA60255
• B6N121USA60255
• Dimension A - 0.236 in. (6 mm)
• Dimension B - 1.1 in. (28 mm)
4-Disk 80 Hp 540 rpm
• OEM Part Number
• B8N111USA60307
• B8#140EA60307
• Dimension A - 0.275 in. (7 mm)
• Dimension B - 1.15 in. (29 mm)
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6.2 Maintenance
Maintenance Chart
General Inspection Inspect the unit for any buildup of
contamination (dirt, stones, etc.).
Hydraulics Check hydraulic hoses and ttings for leaks. Daily
Cutting Teeth Check and replace one at a time as
necessary. The teeth on the outer edge of
the wheel wear faster and are more prone to
chipping. With daily use expect to replace 5
to 10 teeth per week. (See Replace Cutting
Teeth in this section.)
Deector Shield Pins Lubricate pins so deector can move freely. Every 6 hours.
Pivot Pins Lubricate nine (9) pivot pins. Every 10 hours.
Gearbox Oil Change gear box oil. Use synthetic 90W
gear oil. Capacity is 1.5 L (1.5 qts.).
Cutting Wheel Retaining Nut Torque to 176-190 N•m (130-140 lb-ft.) Only if cutting wheel is
6.2.1 Every 6 Hours
Lubricate deector shield pivot points every 6
hours of use.
6.2.2 Every 10 Hours
Lubricate pivot pins every 10 hours of use.
Daily
Every 2 hours.
Every 200 hours.
replaced.
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6.2.3 Every 200 Hours
1. Park tractor and grinder on a level surface.
2. Lower grinder to the ground.
3. Place wood block under cutting wheel and
lower cutting wheel to wood block.
4. Shut off engine and remove key.
1. Remove drain plug (A).
2. Drain oil and install plug.
3. Remove ll/check plug (B).
4. Add synthetic 90W gear oil until oil comes out
of hole.
5. Replace ll/check plug.
A
B
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7. TROUBLESHOOTING
PROBLEM CHECK SOLUTION
Cutting wheel does not spin. Cutting wheel jammed. Remove material from cutting wheel.
Verify PTO drive line is connected properly. Connect drive line to tractor.
Slip clutch is slipping. Remove jam from cutting wheel.
Cutting wheel does not have much power. Slip clutch is slipping. Check to determine if the slip clutch is
hot. Use Caution: This Can Be Very Hot! A
hot clutch does NOT grip.
Slippage on the clutch occurs if there is
more power than the unit is rated for:
Model 3P24 is rated for 20-60 hp input.
Model 3P34 is rated for 50-80 hp input.
A bigger tractor can be used if it is idled
down as this will decrease the output
power of the engine.
Take smaller passes (less cutting) to
decrease the strain on the clutch.
Turn the flow control knob to a lower
number (1) to reduce the strain on the
slip clutch.
Be careful when tightening the tension
setting on the slip clutch as this could
put excess strain on the gear box.
Tractor is not able to lift 3-point. Tractor is too small. Move link pins to the top position on the
stump grinder to add leverage.
Cutting wheel cannot be lifted high enough. Stump too tall. Cut stump shorter.
Shorten top link on 3-point hitch.
Cutting wheel cannot be lowered far enough. Top link not correct length. Lengthen top link on 3-point hitch.
No movement on cylinders. No oil flow. Check for plugged or reversed hydraulic
lines.
Adjustment valve is closed. Open adjustment valve.
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8. STORAGE
8.1 Storing Grinder (End of Season)
1. Store Grinder in a dry place.
2. Clean grinder thoroughly. Dirt and wood chips
will draw moisture and cause rust.
3. Lubricate machine. (See Service and
Maintenance section.)
4. Check condition of cutting teeth. Replace as
necessary. (See Service and Maintenance
section.)
5. Loosen all lock nuts on drive line slip clutch.
(See Service and Maintenance section.)
6. Check for loose or missing hardware.
7. Paint parts as necessary.
8. Store PTO drive line off the ground.
8.2 Removing Grinder From Storage
(Beginning of Season)
1. Review Operator’s manual and check
adjustments.
2. Lubricate machine. (See Service and
Maintenance section.)
3. Check gear box oil level. Fill as necessary.
(See Service and Maintenance section.)
4. Inspect clutch linings and repair as necessary.
Adjust slip clutch. (See Service and
Maintenance section.)
5. If parts have been replaced, verify they run
properly.
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9. WARRANTY
This product is warranted to be free of defects in materials and workmanship under normal use and
service, for a period of one year from the date of purchase, when operated and maintained in accordance
with the Operating and Maintenance Instructions supplied with this unit. This warranty does not cover
misuse or negligence.
Under no circumstances will the manufacturer be liable for any consequential damage or expense of any
kind, including loss of prots. The manufacturer is under no circumstances liable for tractor damage of
any kind. The manufacturer is not liable for the maintenance of the product.
This warranty is extended only to the original purchaser. Warranty is void if repairs are attempted by
anyone other than an Authorized Service Center.
If a difculty develops with the product, you should contact your nearest Authorized Repair Centre, or
distributor. Only these locations are authorized to make repairs to the product or affect the replacement of
defective parts, which will be done at no charge within a reasonable time after the receipt of the product.
Units or parts should be returned at the customer’s expense to the nearest repair location or Authorized
Service Centre. Pack unit in a strong carton and pad tightly to avoid damage. Damage in-transit is not
covered by warranty. Include original purchase receipt with any claim (keeping a copy for your les).
The Manufacturer’s Liability is limited to repair of the product and/or replacement of parts and is given to
the purchaser in lieu of all other remedies including incidental and consequential charges. There are no
warranties, expressed or implied other than those specied herein. For the nearest Authorized Service
Centre call the manufacturer.
Please note the following details and le this information in an appropriate place.
Model Number: ___________ S/N:_______________
Date of Purchase: _____________ Owner’s Name__________________________________
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MTB MFG INC.
CORPORATE HEADQUARTERS
4575 Powell Rd.,
Wallenstein, Ontario Canada
N0B 2S0
Phone - 519.698.9864
Toll Free - 866.820.7603
Fax - 519.698.1087
www.baumalight.com
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