Baumalight HGW30 User manual

HGW30 Self-Propelled Stump Grinder
OPERATOR’S MANUAL
Issue Date: October 2020

^ WARNING
Breathing engine exhaust exposes
you to chemicals known to the State
of California to cause cancer and birth
defects or other reproductive harm.
Always start and operate the engine in a
well-ventilated area.
If in an enclosed area, vent the exhaust
to the outside.
Do not modify or tamper with the
exhaust system.
Do not idle the engine except as
necessary.
For more information go to
www.P65Warnings.ca.gov.
^ WARNING
Batteries, battery posts, battery
terminals, and related accessories can
expose you to chemicals including lead
and lead compounds, which are known
to the State of California to cause cancer
and birth defects or other reproductive
harm.
For more information go to
www.P65Warnings.ca.gov.
ii

TABLE OF CONTENTS
1 INTRODUCTION ................................................................................................................................. 2
1.1 Overview...................................................................................................................................... 2
1.2 Intended Use And Foreseeable Misuse.................................................................................... 2
2 SAFETY................................................................................................................................................ 3
2.1 Safety Alert Symbol And Safety Words.................................................................................... 3
2.2 Operational Hazards................................................................................................................... 3
Prepare For Emergencies .......................................................................................................... 4
Replace Safety Signs ................................................................................................................. 4
Do Not Allow Riders ................................................................................................................... 5
Lower Operating Speed ............................................................................................................. 5
Avoid Rollover ............................................................................................................................ 5
Avoid Powerlines & Underground Utilities .............................................................................. 5
Hazards From Modifying Equipment ........................................................................................ 6
2.3 Maintenance Hazards................................................................................................................. 8
3 SAFETY DECALS ............................................................................................................................... 9
4 COMPONENTS ................................................................................................................................. 12
5 OPERATION ...................................................................................................................................... 13
5.1 Pre-Operation Check List ........................................................................................................ 13
5.2 Carbide Teeth Break-In............................................................................................................. 13
5.3 First Time User Tips ................................................................................................................. 14
5.4 Field Operation ......................................................................................................................... 14
Operator Controls..................................................................................................................... 15
Grinding A Stump ..................................................................................................................... 15
6 SERVICE AND MAINTENANCE...................................................................................................... 16
6.1 Maintenance.............................................................................................................................. 16
6.2 Inspections................................................................................................................................ 17
6.3 Rotate Cutting Teeth................................................................................................................. 17
6.4 Replace Cutting Teeth .............................................................................................................. 18
6.5 Replace Tooth Holder............................................................................................................... 18
6.6 Lubrication ................................................................................................................................ 19
7 TROUBLESHOOTING ...................................................................................................................... 20
8 STORAGE.......................................................................................................................................... 20
8.1 Storing Stump grinder ............................................................................................................. 20
8.2 Remove Stump grinder From Storage.................................................................................... 20
9 WARRANTY....................................................................................................................................... 21
1

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 e󰀩cient grinding of stumps.
You must read, understand, and follow all
instructions in this manual before operating,
adjusting or servicing this machine.
If you do not understand any part of this manual or
you are unsure about any aspect of this machine,
contact Holt Industrial.
Information provided in this manual was current as
of the issue date.
Information furnished in this manual does not
include all of the details of design, production, or
variations of equipment. It does not cover all the
possible contingencies, which may arise during
operation or maintenance.
Should special issues arise, or further information
be desired, contact your dealer.
This manual covers the Baumalight HGW30 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.
When this machine is worn out and no longer in
use, it should be returned to the retailer or other
party for recycling.
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.
1.1 Overview
The Stump grinder is designed to be used by
experienced operators, trained in the safe operation
of an excavator and trained in the hazards related
to using the stump grinder and the safe use of the
stump 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.
Care is required to ensure that the stump grinder
will not come across metallic objects, stones or
other materials.
Stump grinder is 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 stump grinder is misused.
Misuse may also cause damage to the machine
carrying the implement.
1.2 Intended Use And Foreseeable
Misuse
2

2 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.
2.1 Safety Alert Symbol And Safety
Words
2.2 Operational Hazards
^ WARNING
Prevent serious injury or death.
Read and understand this manual before
operating the stump grinder.
Always stop engine and allow rotor to
stop before approaching rotor.
Never allow anyone near stump grinder
during operation.
Travel at a safe speed.
^ WARNING
Prevent serious injury or death from
moving parts.
Moving parts can crush and dismember.
Do not operate without guards and
shields in place.
Lockout engine controls before
adjusting or performing maintenance.
^ 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.
3

^ WARNING
Prevent serious injury or death.
Allow only properly trained and qualied
personnel to operate this equipment.
^ WARNING
Protect from ying debris.
Wear proper safety glasses, goggles,
or a face shield to protect from ying
debris.
^ 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.
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.
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 866-820-5603.
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 of this
manual.
• Replacement safety signs are available from
your Baumalight dealer.
4

Do Not Allow Riders
• NEVER lift or carry anyone on the stump
grinder.
• NEVER use stump grinder as a work platform.
• NEVER allow passengers on the stump
grinder.
Lower Operating Speed
• Keep stump grinder low and move at slow
speeds on rough or uneven terrain.
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 stump grinder 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.
DO NOT leave the operator’s seat if any part of the
equipment contacts electric lines or cables.
Raised Rotor
^ WARNING
Crushing hazard.
Raised, unsupported rotor can fall,
resulting in death or serious injury.
Never enter the area under a raised
rotor.
A raised rotor can lower unexpectedly, resulting in
death or serious injury.
NEVER enter area under a raised rotor.
Lower rotor to ground, engage parking brake,
shut o󰀨 engine and lockout engine controls before
servicing
5

Avoid High Pressure Fluids
^ 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 before
connecting or disconnecting hydraulic lines. Verify
all connections are tight before applying pressure.
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.
Doctors unfamiliar with this type of injury should
reference a knowledgeable medical source.
Avoid Loud Noise
^ WARNING
Prolonged exposure to loud noise can
cause impairment or loss of hearing.
Wear a suitable hearing protective
device such as earmu󰀨s 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.
6

Avoid Wood Dust Inhalation
^ WARNING
Wear an approved respirator (N95 Type
as a minimum).
Follow local, state and federal
regulations.
The health e󰀨ects 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 High Pressure Fluids
^ 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
Excavator Operator’s Manual.) before connecting
or disconnecting hydraulic lines. Verify all
connections are tight before applying pressure.
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.
7

^ WARNING
Crushing hazard.
Before performing inspections, service
or maintenance:
Park machine on rm, level surface.
Engage parking brake.
Turn engine o󰀨 and remove key.
Place “Do Not Operate” tag on control
panel.
^ WARNING
Burn hazard.
Hot and high pressure hydraulic oil.
Allow oil to cool before servicing.
2.3 Maintenance Hazards
Before servicing, park machine on a rm and level
surface, remove key, set parking brake 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 your dealer.
Always wear face and/or eye protection, safety
shoes, and other protective equipment appropriate
for the job.
Do not make unauthorized modications. Contact
your dealer 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.
Follow lockout procedure before
servicing.
^ WARNING
Entanglement hazard.
Keep clear of moving components.
Wear proper protective equipment
appropriate for the job.
8

3 SAFETY
DECALS
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.
A
C
B
C
E
F
GH
D
C
9

C. D005039 ^ WARNING - Rotating blade
hazard. Keep back while machine is operating.
D005039
D. D005294
D005294
A. D005365 ^ WARNING - Rotating blade
hazard. Keep back while machine is operating.
Wait for blade to stop before approaching
machine.
D005365
B. D005267
D005297
10

E. D005126 ^ WARNING - Pressurized uid
hazard. Pressurized uids can penetrate the
skin. Do not check for leaks with your hands.
Keep back a safe distance when pressurized.
D005126
F. D005262
WARNING: This product can expose you to chemicals
including 1,3-Butadiene and lead, which are known to the state of
California to cause cancer and birth defects or other reproductive
harm. For more information go to www.P65Warnings.ca.gov.
D005262
G. D005125 ^ WARNING - Read and understand
safety signs on the machine and operating
instructions in this manual before operating
machine.
D005125
H. D005517 ^ WARNING - Remove key before
servicing.
D005517
11

4 Components
A. Rotor Raise/Lower Hydraulic Cylinder
B. Hydraulic Oil Reservoir Fill
C. Hydraulic Oil Filter
D. Hydraulic Oil Reservoir
E. Traction Control
F. Swing And Drive Speed Control
G. Engine
H. Engine Fuel Tank
I. Grinding & Driving Controls
J. Rotor Control
K. Rotor Swing Hydraulic Cylinder
L. Debris Guard
M. Hydraulic Motor
N. Rotor
A
BC
D
E
F
G
H
I
J
K
L
N
M
12

^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 excavator 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.
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.
• Inspect hoses and ttings for wear, damage
and leaks. Replace damaged or leaking hoses
before use.
• Verify hydraulic oil is at full level on sight glass
• Verify that local utilities have marked all
underground utilities.
5 OPERATION
5.1 Pre-Operation Check List
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.
The teeth bolts must be retightened every ten
minutes for the rst hour of use on a new stump
grinder.
5.2 Carbide Teeth Break-In
13

First, operate all functions in a clear area with
throttle at low idle to get a good feel for the controls
before you actually move into any brush.
Slow cutting speed if pressure surges up close
to max psi. Doing this will greatly reduce blade
stoppage.
Run throttle at half speed for rst time users.
Move the stump grinder slowly until you have a
better feel how much the unit can take.
The machine is equipped with a front push bar to
push brush or small trees over. This will allow the
stump grinder teeth to contact the lower portion of
the brush and the blade to cut it o󰀨.
Each operator must experiment to nd a technique
that works for them in their application.
^ WARNING
Always turn o󰀨 excavator and disengage
hydraulic drive before getting o󰀨 the
seat and approaching the blade.
^ WARNING
Wear an approved respirator (N95 Type
as a minimum).
Follow local, state and federal
regulations.
The health e󰀨ects from exposure to
wood dust are due to chemicals in the
wood or chemical substances in the
wood created by bacteria, fungi, or
molds.
5.3 First Time User Tips 5.4 Field Operation
^ WARNING
Prevent serious injury or death.
Keep clear of moving machinery.
^ 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
Clean machine thoroughly before
service or maintenance procedures.
The health e󰀨ects 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.
14

Operator Controls
A
B
C
DE
FG
A. Rotor Engage/Disengage
B. Traction Control
C. Swing & Drive Speed Control
D. Rotor Swing Control
E. Rotor Lift Control
F. Steering Control
G. Drive Control
Grinding A Stump
^ WARNING
Prevent serious injury or death.
Keep clear of moving machinery.
1. Start stump grinder engine. See OEM engine
manual for safety, prestart and operational
information.
2. Set engine speed at high idle.
3. Adjust stump grinder swing speed. Rotate
swing & drive speed control (C) counter
clockwise to slow setting. It is recommended
to start at the slow setting and adjust speed up
as desired.
4. Rotate traction control (B) fully clockwise to
lock drive wheels together. Rotate control
counter clockwise to allow steering.
5. 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.
6. Position stump grinder up to the front edge of
the stump using levers (F) and (G).
7. Check position of the stump grinder to the
stump. Verify stump grinder is positioned at the
edge of the stump that is closest to the stump
grinder.
8. Verify rotor is close to, but not touching stump.
Adjust rotor height with lift control lever (E).
9. Engage rotor with lever (A).
10. Use lift lever (E) and swing lever (D) to direct
the rotor. Make the rst pass across front edge
of stump, moving the cutting wheel from side to
side in 3-6 inch passes.
11. Continue to take passes across the front edge
of the stump, taking 3-6 inches on each pass.
12. When ground level is reached, continue to
grind up to 12 in. (305 mm) below the surface
to the bottom of the stump where the roots
branch out.
13. Lift rotor and swing it to right or left side. Back
the stump grinder up slightly to position the
stump grinder beside the new front edge of the
stump.
14. Make multiple passes over the front edge of
the stump, taking 3-6 inches on each pass.
15. Reposition stump grinder as needed until
the entire stump has been removed to below
ground level.
16. 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.
17. Move stump grinder away from stump to a at
surface and set engine speed at low idle.
18. Stop stump grinder engine.
15

6 SERVICE And MAINTENANCE
6.1 Maintenance
Item
Daily
Before
Use
Every
4
Hours
Every
30
Hours
Weekly
Every
100
Hours
Every
200
Hours
Every
500
Hours
Every
2000
Hours
Check hoses and ttings for leaks. ●
Check cutting teeth for wear.
Rotate or replace cutting teeth as
necessary.
●
Lubricate pivot point grease
ttings. ●
Check rotor bearings for side-
to-side and up/down movement.
Replace bearing if movement is
found.
●
Change engine oil lter. ●
Change engine air lter. ●
Change engine oil and lter. ●
Change hydraulic oil lter. ●
Change hydraulic oil and lter. ●
^ WARNING
Moving parts can crush and cut.
Keep clear of moving components.
Lockout operating engine controls
before performing inspections or
maintenance.
^ WARNING
Prevent serious injury or death.
Wear proper protective equipment
appropriate for the job.
16

6.2 Inspections
Inspect the unit for any buildup of contamination
(dirt, stones, etc.).
Check cutting teeth every 4 hours of use. Replace
cutting teeth as needed. Unit will cut faster and
remaining teeth will last longer if broken teeth are
replaced.
Inspect hydraulic hoses for damage and wear.
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 from its
original position before replacement is necessary.
1. Park stump grinder on a level surface.
2. Lower rotor to the ground.
3. Shut o󰀨 engine and lockout engine controls.
4. Inspect teeth for wear on top edge. Once
outside cutting edge is worn, rotate tooth so a
new edge is on top (cutting) edge.
5. Loosen locknut (A) on tooth (B) and rotate
tooth 1/3 turn. Flat shoulder on tooth will t
against shoulder (C) on tooth holder.
6. Tighten locknut (A) to 20 lb/
ft (27 Nm) of torque.
A
B
C
Note: Parts breakdown can be found on
Baumalight’s website. www.baumalight.com
6.3 Rotate Cutting Teeth
17

6.4 Replace Cutting Teeth
1. Park stump grinder on a level surface.
2. Lower rotor to the ground.
3. Shut o󰀨 engine and remove key.
4. Inspect cutting teeth (B) for damage and wear.
Replace individual teeth as needed.
5. Remove locknut (A) and spacer from tooth (B).
Install new tooth. Flat shoulder on tooth will t
against shoulder (C) on tooth holder.
6. Install spacer and locknut. Tighten locknut (A)
to 20 lb/ft (27 Nm) of torque.
A
B
C
Note: Parts breakdown can be found on
Baumalight’s website. www.baumalight.com
6.5 Replace Tooth Holder
1. Park stump grinder on a level surface.
2. Lower rotor to the ground.
3. Shut o󰀨 engine and remove key.
4. Inspect tooth holders (A) for damage and wear.
Replace individual tooth holders as needed.
5. Remove tooth from tooth holder.
6. Remove mounting hardware on tooth holders.
Install new tooth holder and tighten mounting
hardware.
7. Install tooth into new tooth holder. Tighten tooth
locknut to 20 lb/ft (27 Nm) of torque.
A
A
18