Baumalight WLWB44 User manual

WB44 STUMP GRINDER
OPERATOR’S MANUAL
Issue Date: Oct 2020

1. INTRODUCTION ................................................................................................................................ 1
1.1 Overview..................................................................................................................................... 1
1.2 Intended Use And Foreseeable Misuse ................................................................................... 1
2. COMPONENTS .................................................................................................................................. 2
3. SAFETY............................................................................................................................................... 3
3.1 Safety Alert Symbol And Signal Words................................................................................... 3
3.2 Operational Hazards.................................................................................................................. 3
Prepare for Emergencies ........................................................................................................... 4
Replace Safety Signs ................................................................................................................. 4
Lower Operating Speed ............................................................................................................. 4
Do Not Allow Riders ................................................................................................................... 5
Prevent Rollover ......................................................................................................................... 5
Avoid Powerlines & Underground Utilities .............................................................................. 5
3.3 Maintenance Hazards................................................................................................................ 6
3.4 Safety Signs ................................................................................................................................ 7
4. OPERATION ..................................................................................................................................... 10
4.1 Pre-Operation Check List ........................................................................................................ 10
4.2 Carbide Teeth Break In............................................................................................................. 10
4.3 Operation................................................................................................................................... 10
4.4 Grinding A Stump ......................................................................................................................11
4.5 Storage ...................................................................................................................................... 13
5 SERVICE AND MAINTENANCE...................................................................................................... 14
5.1 Maintenance Intervals .............................................................................................................. 14
5.2 Inspections................................................................................................................................ 14
5.3 Throttle Inspection ................................................................................................................... 14
5.4 Clutch Inspection ..................................................................................................................... 15
5.5 Rotate Cutting Teeth................................................................................................................. 16
5.6 Replace Cutting Teeth .............................................................................................................. 16
5.7 Replace Tooth Holder............................................................................................................... 17
5.8 Lubrication - Every 30 Hours................................................................................................... 17
5.9 Check Belt - Every 100 Hours.................................................................................................. 18
6. TROUBLESHOOTING ..................................................................................................................... 19
7. WARRANTY...................................................................................................................................... 20
TABLE OF CONTENTS
ii

1. INTRODUCTION
Congratulations on your choice of a Baumalight
Stump Grinder to complement your stump grinding
operation. This equipment has been designed and
manufactured to meet the needs of a discriminating
buyer for efcient grinding of stumps.
Safe, efcient 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 WB44 Stump
Grinder. 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.
Modications may compromise safe operation of
machine, subject users to serious injury or death and
may void any remaining warranty.
This operator’s manual does not replace, nor does its
use discharge the operator from observing all safety
codes or operating limitations as well as any applicable
federal, state, provincial or local regulations.
There are three different types of labeling on this
machine: safety, informative and product labels.
Safety Labels are pictorial with a yellow
background and generally 2 panel. Top panel
indicates the potential hazard and the bottom
panel indicates how to avoid the hazard.
Informative Labels are generally pictorial, have
a white background and can vary to the number
of panels. The label will illustrate the function
of a feature and is accompanied by detailed
1.1 Overview
The stump grinder is designed to be used by an
experienced operator. Operator must be trained
in the safe operation and 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
grinder.
Care is required to ensure that the stump grinder
will not come across metallic objects, stones or
other materials.
Stump grinders 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 grinder is misused.
1.2 Intended Use And Foreseeable
Misuse
instructions in the owners manual, with the label
illustrated along side.
Product Labels contain product information such
as model number or serial number.
1

2. COMPONENTS
I
K
JH
H
A
B
C
D
E
F
G
A. Rotor
B. Debris Guard
C. Engine
D. Safety Bar
E. Operator Station Handle
F. Wheel Lock
G. Belt Guard
H. Lift Handles
I. Wheel Lock Lever
J. Handle Height Lock
K. Engine Stop Button
2

3. SAFETY
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.
^ 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.
3.1 Safety Alert Symbol And Signal
Words
3.2 Operational Hazards
^ WARNING
Prevent death or serious injury.
Read and understand this manual before
operating stump grinder.
Keep clear of moving components.
Stop engine before performing
inspections or maintenance.
Never allow anyone near the stump
grinder during operation.
Travel at a safe speed.
^ WARNING
Prevent death or serious injury from
moving parts.
Moving parts can crush and dismember.
Do not operate without guards and
shields in place.
Disconnect and lockout power source
before adjusting or servicing.
^ WARNING
Safely operate equipment.
Allow only properly trained and qualied
personnel to operate this equipment.
3

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
• 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.
Replace Safety Signs
• Replace missing or damaged safety signs.
• Safety signs are identied in Section 3.4 of this
manual.
• Replacement safety signs are available from
your Baumalight dealer.
Lower Operating Speed
• Keep rotor low and move at slow speeds on
rough or uneven terrain.
^ 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.
Engine exhaust contains carbon
monoxide. Carbon monoxide is an
odorless gas that can cause death.
Avoid any areas or actions that expose
you or others to carbon monoxide.
Never refuel a running engine or refuel
near ignition sources.
^ WARNING
Protect from ying debris.
Wear proper safety glasses, goggles,
or a face shield to protect from ying
debris.
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 inuence of alcohol, prescription or non-
prescription medication or if feeling ill.
4

Do Not Allow Riders
• NEVER lift or carry anyone on stump grinder.
• NEVER use stump grinder as a work platform.
• NEVER allow passengers on stump grinder.
Prevent 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.
• Travel with rotor close to the ground.
• Avoid holes, ditches and other obstructions
which may cause equipment to rollover.
• Use caution when operating on slopes and do
not operate on excessively steep slopes.
Avoid Powerlines & Underground
Utilities
^ DANGER
Prevent electrocution.
Death or serious injury can result if
equipment comes near or contacts
power lines.
Electrocution can occur without direct
contact.
Have local utilities locate and mark under ground
wires, cables, pipelines and other hazards before
grinding.
Hazards From Modifying Equipment
Do not make any alterations to your stump grinder.
Altering may cause your equipment to be unsafe
and may void the manufacturers’ warranty.
Avoid Wood Dust Inhalation
^ 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 molds.
Avoid Loud Noise
^ WARNING
Prolonged exposure to loud noise can
cause impairment or loss of hearing.
Wear a suitable hearing protective
device.
5

3.3 Maintenance Hazards
Before servicing, park machine on a rm and
level surface, set parking brake and place a “Do
Not Operate” tag on engine controls. 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 modications. Contact
Baumalight at 866-820-7603 before you weld, cut/
drill holes, or make any other modications.
Always use Baumalight replacement parts.
^ WARNING
Moving parts can crush and cut.
Keep clear of moving components.
^ WARNING
Crushing and severing hazard.
Before performing inspections, service
or maintenance:
• Park machine on rm, level surface.
• Engage wheel lock.
• Turn engine off.
^ WARNING
Entanglement hazard.
Keep clear of moving components.
Wear proper protective equipment
appropriate for the job.
6

3.4 Safety Signs
^ WARNING
To protect you and others against death
or serious injury, all labels shown must
be on stump grinder and must be legible.
If any of these labels are missing or
cannot be read, contact your dealer for
replacement labels.
The two and four panel safety decals are pictorial
and have a yellow background. The panel with a
triangle indicates the potential hazard. The panel
without a triangle indicates how to avoid the
hazard.
If any of the decals are missing, are damaged, or
if you do not understand the decal, please contact
your dealer.
7

B
C
D
A
E
D
8

Decal D: D005039
D005039
Decal E: D005029
D005029
Decal A: D003274
Decal B: D005367
D005367
Decal C: D005230
D005230
9

4. OPERATION
^Keep bystanders, livestock, pets, etc away
from work area.
^ Always wear protective equipment appropriate
for the job.
^Do not operate, work on or around this machine
while under the influence of alcohol, drugs or if
feeling ill.
^Keep clear of moving machinery at all times.
^Stop stump grinder engine before leaving
operators area.
^It is your responsibility to operate this equipment
safely. You must be familiar with the equipment
and all safety practices before use.
^Do not allow untrained or unqualied people to
operate this equipment.
4.1 Pre-Operation Check List
Perform the following checks prior to operation.
• Review and understand this manual and
engine operators manual.
• Verify safety decals are installed and legible.
Replace if damaged or missing.
• Verify that all hardware is tight.
• Verify that local utilities have marked all
underground utilities.
4.2 Carbide Teeth Break In
New carbide teeth are razor sharp and can chip and
shatter easily when they hit hard objects. Once the
razor sharpness has worn away, tips do not chip
as easily. Observing these precautions will extend
the life of the carbide teeth and reduce operating
expenses.
4.3 Operation
^ WARNING
Prevent serious injury or death.
Keep clear of moving components.
^ WARNING
Prevent serious injury or death.
Engine exhaust contains carbon
monoxide. Carbon monoxide is an
odorless gas that can cause death.
Avoid any areas or actions that expose
you or others to carbon monoxide.
^ 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
molds.
^ 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.
10

4.4 Grinding A Stump
^ WARNING
Prevent serious injury or death.
Keep clear of moving components.
1. Pull handle height lock (A) and adjust handle
to a comfortable level. Push lock in to engage
in hole to lock handle.
A
2. Start stump grinder engine. See OEM engine
manual for safety, prestart and operational
information.
3. If the stump is on a grade, position stump
grinder lower on the grade with the cutting
wheel on the stump grinder higher up the
grade.
4. Position stump grinder up to the front edge of
the stump.
5. Verify stump grinder is positioned at the edge of
the stump that is closest to the stump grinder.
6. Position rotor close to, but not touching stump.
7. Pull wheel lock lever (B) to lock left wheel.
Lever is shown in the locked position. This will
allow you to pivot stump grinder while grinding
stump.
B
NOTICE
Grinding a stump with engine at less than
operating speed may result in clutch
damage and also void the warranty.
Safety bar (C) must be tight against
handle (D) and engine running at
operating speed (3600 rpm) when
grinding stump.
8. Pull safety bar (C) tight against handle (D). This
will increase engine rpm to operating speed
and engage rotor. Releasing safety bar (C) will
decrease engine speed and disengage rotor.
C
D
11

9. Make the rst pass across front edge of stump,
pivoting the stump grinder from side to side in
3-6 in. (76-152 mm) passes.
10. Continue to take passes across the front edge
of the stump, taking 3-6 in. (76-152 mm) on
each pass.
11. When ground level is reached, continue to
grind below the surface to the bottom of the
stump where the roots branch out.
12. Release safety bar (C) to decrease engine
speed and disengage rotor.
13. Release wheel lock and position the stump
grinder beside the new front edge of the stump.
14. Engage wheel lock.
15. Pull safety bar (C) tight against handle (D).
This will increase engine rpm to operating
speed and engage rotor.
16. Make multiple passes over the front edge of
the stump, taking 3-6 in. (76-152 mm) on each
pass.
17. Reposition stump grinder as needed until
the entire stump has been removed to below
ground level.
18. Follow the roots, taking as much of the larger
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.
19. Release safety bar (C) to decrease engine
speed and disengage rotor.
20. Move stump grinder away from stump to a flat
surface.
21. Stop stump grinder engine.
12

4.5 Storage
Pull handle lock (A) out and flip handle over for
storage.
A
13

5 SERVICE AND MAINTENANCE
^ WARNING
Moving parts can crush and cut.
Keep clear of moving components.
Stop engine before performing
inspections or maintenance.
^ WARNING
Prevent serious injury or death.
Wear proper protective equipment
appropriate for the job.
5.2 Inspections
Inspect the unit for worn or damaged parts. Repair
or replace parts as needed.
5.1 Maintenance Intervals
Item
Daily
Before
Use
Every
4
Hours
Every
30
Hours
Weekly
Every
100
Hours
Verify emergency stop is functioning properly. ●
With engine stopped, verify throttle is fully open when
safety bar is pulled tight against handle. ●
Check cutting teeth for wear. Rotate or replace
cutting teeth as necessary. ●
Check engine air lter. Clean or replace as
necessary. ●
Lubricate pivot point grease ttings. ●
Lubricate rotor bearings ●
Check rotor bearings for side-to-side and up/down
movement. Replace bearings if movement is found. ●
Check drive belt condition and tension. ●
Change engine air lter. ●
Change engine oil. ●
5.3 Throttle Inspection
With engine stopped, pull safety bar tight against
handle and verify throttle (A) is against stop (B).
If throttle is not against stop, loosen clamp screw
(C) and adjust throttle cable case as necessary.
Tighten screw (C) and re-check. Throttle (A)
must be against stop (B) and when safety bar
is tight against handle. Engine must be running
at operating speed (3600 rpm) when grinding a
stump.
14

5.4 Clutch Inspection
Inspect clutch between each use.
NOTICE
Prevent clutch damage.
Engine must be running at operating
speed (3600 rpm) when grinding a
stump.
1. Park grinder on a level surface.
2. Shut off engine.
3. Inspect clutch bearing seal area (A). Grease
on outside of seal indicates excessive heat.
Discoloration in areas (B) also indicates
excessive heat. Excessive heat is a result
of clutch slippage. This is normally due to
grinding a stump at less that operating speed.
Verify engine throttle is properly adjusted so
engine runs at operating speed (3600 rpm)
when safety bar is tight against handle.
4. Inspect pulley grooves. Wear in the bottom of
pulley grooves (C) indicates that belt is worn
out and must be replaced. Excessive belt wear
is a result of belt slippage. This is normally due
to belt not being tight enough and will damage
the pulley as it must run cool to work properly.
15

5.6 Replace Cutting Teeth
1. Park stump grinder on a level surface.
2. Shut off engine.
3. Inspect cutting teeth (B) for damage and wear.
Replace individual teeth as needed.
4. Remove locknut (A) and spacer from tooth (B).
Install new tooth. Flat shoulder on tooth will t
against shoulder (C) on tooth holder.
5. Install spacer and locknut. Tighten locknut (A)
to 20 lb/ft (27 Nm) of torque.
A
B
C
5.5 Rotate Cutting Teeth
Check cutting teeth every 4 hours of use. Keep
cutting teeth in good condition. Unit will cut faster
and remaining teeth will last longer if broken or
worn teeth are replaced.
Each tooth can be rotated up to two times before
replacement is necessary.
1. Park grinder on a level surface.
2. Shut off engine.
3. Inspect teeth for wear on top edge (A). Once
top edge is worn, rotate tooth so a new edge is
on top (cutting) edge.
4. Loosen locknut on tooth and rotate tooth 1/3
turn. Flat shoulder (B) on tooth will t against
shoulder (C) on tooth holder.
5. Tighten tooth locknut to 20 lb/ft (27 Nm) of
torque.
A
B
C
16

5.7 Replace Tooth Holder
1. Park stump grinder on a level surface.
2. Shut off engine.
3. Inspect tooth holders (A) for damage and wear.
Replace individual tooth holders as needed.
4. Remove tooth from tooth holder.
5. Remove mounting hardware on tooth holders.
Install new tooth holder and tighten mounting
hardware.
6. Install tooth into new tooth holder.
7. Tighten tooth locknut to 20 lb/ft (27 Nm) of
torque.
A
A
5.8 Lubrication - Every 30 Hours
1. Park stump grinder on a level surface.
2. Shut off engine.
3. Lubricate rotor bearings (A).
A
A
4. Lubricate pivot pin (B).
B
17

Belt deection (B) should be 0.5 in. (13 mm) at 3.0
lbs of force for a used belt or 4.25 lbs of force for
a new belt.
B
4. To adjust belt tension, loosen engine mounting
bolts. Loosen jam nut (C). Turn adjustment bolt
(D) clockwise to tighten belt to proper tension.
Tighten jam nut (C) and engine mounting bolts.
5. Install belt guard. Do not operate stump grinder
with belt guard removed.
C
D
5. Lubricate axles (C).
C
5.9 Check Belt - Every 100 Hours
1. Park stump grinder on a level surface.
2. Shut off engine.
3. Remove belt guard and inspect belt (A) for
proper tension, wear, damage and correct
alignment. Replace belt if worn or if belt is
damaged. Check belt alignment. Engine pulley
and rotor pulley must be aligned or belt will
wear quickly. If not aligned, adjust engine
pulley and/or rotor pulley.
A
18