Baumr-AG SRG450 User Manual

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Stump Grinder

User Manual

[Revision 5.0 December 2017]

READ THIS MANUAL CAREFULLY BEFORE US E – FAILURE TO DO SO MAY RESULT IN INJURY, PROPERTY DAMAGE AND

MAY VOID WARRANTY. • KEEP THIS MANUAL FOR FUTURE REFERENCE. • Products covered by this manual may vary in

appearance, assembly, inclusions, specifications, description and packaging.

The product is NOT supplied with engine oil, although traces of oil from the manufacturing process may be present. It is essential to add adequate engine oil of the correct type to the engine before use.

• Lubricate the cutting wheel bearings BEFORE first use. Re-lubricate the cutting wheel bearings after every 10 hours of use. Failure t o add engin e oil, or properly lubricate and maintain the cutting wheel bearings will void the

product warranty.

Stump Grinder

Table of Contents

Introduction ................................................................................................................................................................... 1

Safety Instructions........................................................................................................................................................ 1

Protective Equipment ................................................................................................................................................... 6

Important Information ................................................................................................................................................... 6

Controls ......................................................................................................................................................................... 7

Fuelling ......................................................................................................................................................... 7

Centrifugal Clutch .......................................................................................................................................... 7

Safety Presence Gr ip Bar .............................................................................................................................. 7

Throttle .......................................................................................................................................................... 7

Brake ............................................................................................................................................................ 8

Operation ....................................................................................................................................................................... 8

Before you start ............................................................................................................................................. 8

Starting the engine ........................................................................................................................................ 8

Fuel valve ...................................................................................................................................................... 8

Choke control ................................................................................................................................................ 8

Throttle .......................................................................................................................................................... 8

Safety presence g rip bar ............................................................................................................................... 9

Starter handle................................................................................................................................................ 9

Throttle .......................................................................................................................................................... 9

Procedure for grindi ng a stump ..................................................................................................................... 9

Normal shutdown ........................................................................................................................................ 10

Maintenance ................................................................................................................................................................ 12

Cutting Teeth............................................................................................................................................... 12

Brake Adjustment ........................................................................................................................................ 13

Two-Minute Rule ......................................................................................................................................... 13

Cleaning and washing ................................................................................................................................. 13

Lubricating bearings .................................................................................................................................... 13

Drive belts ................................................................................................................................................... 13

Troubleshooting.......................................................................................................................................................... 14

Storage ........................................................................................................................................................................ 15

Winter Storage ............................................................................................................................................ 15

Storage ....................................................................................................................................................... 16

Specifications ............................................................................................................................................................. 16

Stump Grinder

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Introduction

This manual is a valuable document. It describes your new machine. Read the manual carefully before attempting to use the machine. Following the instructions (use, service, maintenance, etc.) can considerably increase the life-span of your machine and even increase its resale value. Pleas e contact your dealer for more informat ion.

If you sell your machine, m ake sure to give the operator’ s manual to the new owner.

Use

The stump grinder is used to remove tree stumps. By moving t he cutting wheel in sweepi ng movements laterally over the top and front of the stump, you can gradually grind it away. Read the chapter “Safety instructions” before you use the machine for the fir st time.

Insure your machin e

Contact your insurance company to check on insurance coverage for your new machine. You should have allinclus ive insurance for liability, fire, damage and theft.

Safety Instructions

General usage

The object of this manual is to help you use your machine safely and to give you information about how to maintai n your machine. Please r ead the manual carefully before attempting to use the machine.

If after reading the operator’s manual you are still unsure about the safety risks associated with use of the machine, you should not use the machine. Please contact your dealer for more information.

These safety instructions only address the basics for safe use. It would be imposs ible in the safety instructions to describe all possible risk situations that could arise when using the machine. You can, however, prevent accidents by al ways using common sense.

•

Follow all saf ety instructio ns. Failure to may result in injury to yourself or ot hers.

•

Accident prev entio n regulations, other general safety regulation, occupational safet y rules and traffic reg ulatio n must be followed without fail.

•

All users shall be trai ned in use of the machine. The owner is responsible for training users.

•

Engage an authorized work shop for all service and repair not described in this m anual.

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Learn how to use the machine and its controls saf ely and learn to recognize t he safely decals.

•

Only use the machine f or removing tree stumps it is not intended for any other use.

WARNING

Under no circumst ances m ay the original design of the machine be modified without written approval from the manufacturer. Such modifications not only affect th e performance and durability of the m achine but many even pose a safety risk for u sers and those in the vicinity. Unauthorized modifications to the design of the machine may absolve the manufacturer from liability for any resulting personal injury or property damage. Modifying the machine without written approval from the manufacturer m ay void the guarantee.

WARNING

The stump grinder can be dangerous if used improperly or without due care and can lead to serious acci dents, in the worst cases even fatal accidents. It is very important t h at you read this operator’s manual and understand the instruction s before you attempt to use the machine.

Lubricate the cutting wheel bearings BEFORE first use. Re-lubricate the cutting wheel beari ng s after every 10 hours of use. Failure to properly

lubricate and maintain the cutting wheel bearings will void the product warranty.

Stump Grinder

The engine can become very hot. To

fingers, hands or wri sts.

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•

Check that the machine is in serviceable conditi on prior to use;

•

Only use the machine in daylight or in other well-lit conditions. Keep the machine a safe distance from holes or other irr egularities in the gr ound. Pay att ention to other possible r isks.

•

Only allow the machine to be used by adults who by adults who are fam iliar with its use.

•

Never allow children or persons no trained in t he use of the machine to use or service it Local laws may regulate the age of the user.

•

People and animals c an distract you causing you to lose control of the machine. F or this reason, you should always concentrate and focus on the task at hand.

•

Never leave the machine unsupervised with the engine running.

•

Make sure that other people are nearby when you are using the m achine so that you can call for help should an emergency aris e.

avoid being burned, you must turn off the engine and wait until all parts have cooled before touching the engine.

Over-exposure t o vibration may lead to circulatory or nerve damage, particularl y in people who have impaired circulation. Contact your doctor if you experience symptoms that could have been caused by overexposure t o vibration. Examples of common symptoms include numbness, pain, muscle weakness, change of skin colour or an uncomfortable feeling of tingling. These symptoms appear most frequently in the

•

The machine is tested and approved only with the equipm ent originally provide d or recommended by the manufacturer.

•

Clear the work ar ea before beginning work

•

Use appropriate equipment (see right)

IMPORTANT INFORMATION

Never use a stump grin der that is damaged or incorrectly adjusted. Never use the stump grinder if any component is missing or if it is not properly assembled. Check that the cutting tools stop rotating when you reduce the throttle. If you fi nd yourself in a situation where you are not sure what to do, always seek expert assist ance. DO NOT try to attack any problem you are not qualified to resolve.

Stump Grinder

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Preparation

•

Make sure that you always hav e first aid equipment at hand when usi ng the machine.

•

Make sure nobody else is in the vicinity of the machine when you start the engine, the dr ive or run the machine.

•

Make sure animals and people maintain a safe dist ance from the machine.

•

Clear the area of objects such as stones, toys, s teel wire, etc. that could become caught in moving machine parts and thrown out.

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Find and locate all fixe d objects in the ground, such as sprinkler systems, poles, water valves, bas es for washing lines, etc. Be certain to check for hidden elect rical cables or similar in the surface of the lawn. Always run the machine aro und these objects. N ever intentionally run the m achine over foreign objects.

•

Check the dead man’s grip and all guards are fitted and functioning. DO NOT use the machine if it is not working proper ly.

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Make sure no clothing, long hair or jewellery can cat ch in moving machine parts.

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Use mouth protection, protect ive gloves with good grip and protec tive clothing which you can move unrestricted. Also use leg protect ion to pr otect your legs from sparks and the cutt ing tools.

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Never use the machine when baref oot. Always wear prot ective boots with anti-sl ip and preferably with steel toes.

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Use a helmet with a full fac e visor or a mesh visor and protective glasses. Wear approved ear-protection when running the machine. Ask tour dealer about approved protectiv e glasses, ear protection and recommended helmets.

Always use approved protective clothing and approved protect ive equipment when using the machine. Protective clothing and protective equipment cannot eliminate the risk of accident, but wearing proper clothing and the correct equipment will r educe the degree of injury should an accident occur.

Operation

•

Do NOT use the machine on grades of more than 10

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Do NOT use the machine if you are tired, if you have consumed alcohol, or if you are taking other drugs or medication that can affect your vision, judgement or coordination.

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Never use the machine indoors or in spaces lacking proper ventilation.

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Make sure you have a proper f oothold when using the machine, particularly when reversing. Always walk – do NOT run. Never work in wet grass. Poor traction may cause you to slip.

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Keep your hands and feet away from moving parts.

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Keep your hands and feet away from the work tools.

•

Do NOT use your feet or other parts of your body to gain greater bearing pressure against the stump.

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Smoking, open flames or sparks in the vicinity of the machine are strictly forbidden. Gasoline is extremely flammable and carelessness in handling can result in perso nal injury of fire.

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Never use a machine with a deflective muffler.

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In very warm and dry climates, stump grinder oper ation poses a risk of forest fir es.

Stump Grinder

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•

Stop and inspect the equipment if you run over or into anything. If necessary, make repairs before beginning again.

•

Whatever happens, you should always park the m achine on even ground, disengage the drive, activate the parking, turn off the engine and wait until all moving parts have st opped before leaving the operating position behind the machine.

Movement/Transport

•

To turn and steer the machine, press dow n on the handle and turn on the back whee ls.

•

Turn off the engine and allow it to cool at least 2 minutes before transpor t.

•

Be careful and use safe lifting and moving techniq ues whe n loading/unloading the machine.

•

We recommend having t wo people to l ift the machine.

•

Activate the parking brake during transpor t.

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Fasten the machine properly in place with approved fasteners, such as tension belts, chains or rope. Always check that you are in compliance with applicable traffic r egulations before transpor ting the machine.

Storage

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Allow the engine to cool bef ore storing the machine. Never store the machine near an open flame.

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Store the machine with the fuel valve closed.

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Store the machine and fuel in such a way that there is no risk that leaking fuel or f um es can com e in contact with flames or sparks from electrical machine, electric engines, relays, switches, boilers or similar.

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Store the machine in a locked space away from children a nd adult s untrained in use of t he m achine.

•

Never store or operate the machine near an open flame.

•

Keep children away from the mac hine. Never allow children to operat e the machine.

Serious accide nts can occur if you fail to be on guard for children near the machine. Never assume that children will stay put where you last saw them.

•

Be particularly car eful near corners, bushes trees or other obj ects that block your view.

Fuel system

•

Only store fuel in conta iners approved for that purpos e.

•

Never remove the fuel cap a nd fill the fuel tank when the engine is running.

WARNING

Gasoline and gasoline fumes are poisonous and extremel y flammable. Be extra careful when handling gasoline, as car elessness can result in personal injury or fire.

Stump Grinder

WARNING

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Always stop the engine w hen refuelling .

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Do not smoke when filling the gasoline tank and do no t pour gasoline near sparks or open flame.

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Never fill the fuel tank indoors.

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Before starting t he m achine after refuelling. It should be move at least 10 feet (3 M) from the location where it

was filled.

• Turn off the fuel suppl y for storage or transport .

• If leaks arise in the fuel system, the engine must not be started until

the problem has been res olved.

• Check the fuel level befor e each use and leave space for the fuel to expand.

• Avoid overf illing. If you spill gasoline on the machine, wipe up the spill a nd wa it until it has evaporat ed before starting the engine. If you spill gasoline on your clothing, change your clothing.

Close the fuel valve

Maintenance

•

Never make adjustments with the engine running.

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Disengage the drive units, shut off the engine and wait until all moving parts come to a complete stop before making adjustments , performing maintenance or cleaning the machine.

•

Disconnect the spark plug cable before beginning r epair work.

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Keep all components in serviceable condition and make sure all nuts, bolts, etc. are tight. Replace worn or damaged decals.

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Be careful when check ing work tools. Use gloves when performing maintenance work.

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Never allow persons not trained in the use of the machine to perform serv ice on it.

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Always park the machine on even ground before performing maintenance or making ad justm ents.

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Do not disassemble t he engine. This can invalidate your engine warranty. Contact your dealer if you have any questions regarding service or guarantee matters. Follow all mainte nance instructions.

•

Do not chang e the setting of governors and avoid running the engine with overly high RPM. If you run the engine too fast, you risk damaging the machine com ponents.

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Do not modify safety equipment. Check regularly to be sure it works properly. T he m achine must not be run with defective of disassembled safety equipment.

•

The muffler is designed to maintain sound levels at an approved level and keep direct exhaust away from the user. Exhaust gases are extremely hot and may contain sparks that can cause fires or burns.

Remove the spark plug cable.

•

Never use a machine with a defec tive muffler.

•

Reduce the risk of fir e by removing grass, leaves and other debr is that may have caught in the m achine.

Wait until all moving parts are completely still before performing maintenance on the machine. Turn off the engine and remove the sp ark plug cable.

Stump Grinder

1. Protective helmet (hard hat)

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Protective Equipment

Personal equipment

Consult your dealer when selecting protective equipment. Before using the stump grinder, you may need to cut back the object with a power saw. It is appropriate to

use personal protective equipment that fulfils requirem ent for working with both stump grinders and power saws. The main difference is t hat you should wear protec tive glasses when operating the st um p grinder while the wire mesh viso r gives suffici ent protection when using a power s aw. Thus when using the stump grinder, we recommend using both a wire mesh or visor to protect your face and protective glasses. Alternatively, you can use a face guard, but it sc ratches more easily and is more susceptible to soiling and fogging.

You require the follo wing personal protec tive equipment:

2. Ear protection

3. Face guard

4. Protective trousers

5. Protective glasses

6. Breathing protection(risk of dust y work environment)

7. Protective gloves

8. First aid kit

9. Protective boots or steel-toed shoes.

Important Information

CAUTION: Lubricate the cutting wheel bearings BEFORE first use. Re-lubricate the cutting wheel bearings aft er every 10 hours of use. Failure to properly lubricate and maintain the cutt ing wheel

bearings will void the product warranty.

1. Lubricate the cutt ing wheel bearings BEFORE first use.

2. Clear the work ar ea of debris (stones, rocks, r ubbish etc) before beginning work.

3. Change the engine oil after 10 hours.

4. Check bolts and nuts are properly adjusted aft er 10 hours, tighten them.

5. W hen the engine w orks smelly without cutter spindle rotating, move the cutter spindle away from work

area to avoid belt worn.

6. Check the edge befor e and after operating. Replace it when damaged.

7. Check fuel tank carefully before and aft er operating. Make sure there is eno ugh fuel for using.

After the first 10 hours.

1. Change the engine oil.

2. Lubricate the cutting wheel bearings .

3. Check that the clutch is operated well.

4. Check that belts and chains are properly adjusted.

WARNING

Gasoline is highly flammable. Observe caution and fill the tank outdoors (see the safety instructions).

5. Tighten scr ews and nuts.

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Controls

Fuelling

Read the safety instructions before fuelling. Keep the fuel and fuel tank c lean. Avoid filling the machine with

dirty fuel. Make sure the fuel cap is properly tig htened and the gasket is not damag ed, particularly before was hing the machine.

SAE10W-30 is recommended for general use. If the engine “bolts” at normal load it can be dam aged. Change the

fuel. If this does not help, contac t an authorized service workshop. Do not fill the tank completely; leave spac e for the fuel to expand

as it warms up.

Centrifugal Clutch

The engine is equipped with a centrifugal clutch that is connected to the crankshaft.

When the engine speed incr eases, the drive for cutt ing wheel engages automatically.

The centrifugal clutch is maintenanc e-face; it is not possible for the user to make adjustments.

Safety Presence Grip Bar

The bar must be held against the handle for the engine to r un. If you release the gr ip, the ignition system short-circuits and the engine stops.

WARNING

Do not bind the bar to the handle. It is there for your safety.

Throttle

The lever controls engine speed. With the lever down, the engine runs at idle and functions as start position. When the engine speed incr eases, the centrifugal c lutch drive automatically engages the cutting wheel.

Grip Bar

Stump Grinder

Fig. A

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Brake

WARNING: NEVER operate a machine with a def ective brake

The lever activates a disk brake on the left wheel when it is pulled backwards. The brake should always be activated when operating the grinder. When it is parked and when it is being transported.

Operation

Before you st art

CAUTION: Lubricate the cutting wheel bearings BEFORE first use. Re-lubricate the cutting wheel bearings aft er every 10 hours of use. Failure to properly lubricate and maintain the cutt ing wheel

bearings will void the product warranty.

Augers and auger tips are consumable parts, and are not covered u nd er warranty.

Dig away the earth and remove any stones near the tree st um p that may interfere with your work . Check that the ground is free of foreign objects, such as electrical cables, barbed wire, etc.

Cut or trim the stump as necessary using a power saw.

Starting the engine

Check that all daily mai ntenance as described i n the maintenance schedule has been performed. Check that there is suf ficient fuel in the t ank .

Fuel valve

Open the fuel valve. Place the lever all the way to the right.

Choke control

W hen starting the engine warm, the lever should be in the right positio n; see the illustration.

When starting the engine cold or partially warm, place the lever completely or partly to the left.

When the engine is cold, it may be best to move the lever back in several stages. Find the positio n w here the engine runs smoothly.

Throttle

Set the throttle on the handle to the SLOW (START)/DISENGAGE position (see Fig. A).

Stump Grinder

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Safety presence grip bar

Hold in the safety presence grip bar against the handle (see Fig. B).

Fig. B

Starter handle

The dead man’s grip must be pressed in when starting the engine. Misuse of the starter handle ca damage the starter. DO NOT twist the starte r cord around your han d. Pull out the handle slo wly until the gears mesh. Then give a sharp pull on the start er handle. DO NOT pull out the starter cord completely and DO NOT let go of the starter handle when extended.

Throttle

Keep the throttle at idle. When the throttle is increased, the cutting wheel will begin rot ating (see Fig. A).

Procedure for grinding a stump

Stage 1

WARNING

Never leave operating position when cutting wheel is rotating!

Keep everyone and all animals away when cutting wheel is rotating.

Before operating the machine, review “Machine Control” and “Other Machine Components” presented earlier in the “Oper ation” section, for a refresher on the functi on and us e if each control and compone nt.

Operating on hills

Be very careful when operating the stump grinder on hills because the machine can slip or move unexpectedly.

NEVER use the machine on gr ades of 10 percent or steeper.

Transport

Secure the mac hine w ith tensio ning belts, chains or

1. Place machine into position with the cutting

wheel near the fr ont-top edge of stump.

2. Set brake to lock posit ion.

3. Set the throttle to (START) DISENGAGE position.

4. Start the engine.

5. Allow the engine to warm up at idle for two minutes.

other approved materials.

Stump Grinder

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6. Move the throttle up to the ENGAGE posit ion (this will engage t he cutting wheel and rotate it).

7. Swing the cutting wheel to one side, then lower it approximately 1/2″to 1″into the front-top corner of the

stump. Swing the cutting wheel back and forth, lowering the wheel approximately 1/2″to 1″ before each sweep, until you have removed the front portion of the stump to ground level.

Tips: To make operating easier, cut stump to

same level as ground.

WARNING

A rotating cutting wheel is very DANGEROUS! Stay at the operating position and be sure that the wheel comes to a complete stop before doing anything else.

8. Raise the cutting wheel until centre of wheel is just above top of stump.

9. With the cutti ng wheel of f to one side, advance the mac hine hori zontally by releasing and resetting the

brake. Advance t he m achine for ward to engage the cutting wheel into the stump so that when swept across the stump it will remove 1/2″to 1″of stump with each sweep.

10. Swee p the cutting wheel across the stump, cutting away 1/2″to 1″of stump.

11. Advance the cutting wheel 1/2″to 1″, and sweep across stump in opposite dir ection.

12. Continue sweeping the cutting wheel left and right across stump, advancing it before each sweep, cutting

1/2″to 1″depth of stump with each sweep.

13. Continue cutting until top level of stump is all removed, making sure not to cut stump deeper than ground

level during this first stage.

14. T urn throttle to the (START) DISENGAGE position, wait ten seconds for the cut ting wheel to stop rotating

then release brake and retract the machine f rom the stump.

Stage 2

15. Place m achine into positio n with the cutting wheel near the front-top edge of the stump.

16. Set brake to lock positio n.

17. Move throttle to the ENGAGE position.

18. Complete cutting the stump down by repeating the previous steps until entire stump is cut to desired

depth.

19. Stop the machine.

Normal shutdown

Throttle

Set the throttle to SLOW/DISENGAGE. If the engine has been runni ng under full load, let it run without load and at a

low speed for about 30 s econds to one minute. Do NOT allow the front of the unit to touch ground until you are sure the

cutting wheel has stopped turning.

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WARNING

A rotating cutting wheel is very DANGEROUS! Stay at the operating position and be sure that the wheel comes to a comp lete stop before doing anything else.

Brake

Activate the brake by pulling the lever.

Fuel valve

Close the fuel valve. T urn the lever all the way to the left (see ill ustration). Release the safety pres ence bar. Wa it unt il the cutt ing whee l stops.

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Maintenance

Cutting Teeth

Among the most crit ical elements of the machine are the cutting teeth. It is also the most subject to damage and wear. During cutting, teeth not only contact the stump, but also encounters numerous assortm ents of abrasives and objects, such as dirt, stones, and occasionally a large rock or buried scrap. The loss of and wear of cutting teeth can significantly impair the effic iency and performance of the machine. Therefore, it is important to m ake frequent observations of t he condit ion of all of the cutting teeth and replace or sharpen any dam aged or worn teeth.

Do not allow the cutting teeth to wear too much befor e sharpening. The cutting teeth must be removed from the machine before sharpening.

Read all of the following instructi ons befor e beginning to change cutting teeth.

Changing Cutti ng Teeth.

1. Clean all dirt from the cutting wheel and teeth.

2. Check the cutting teeth for cracks, chips and damage. Replace

damaged or unserviceable cutting teeth.

3. Remove the 2 bolts securing the cutting tooth - be careful not to let any

parts drop when they become loose.

4. Re-install the tooth and securely tighten using the fixi ng bo lts. Ensure

that the teeth align with wheel rotation and that the longer bolt is used where it must fix teet h on both sides of the cutting wheel.

SHARPENING STEPS

For sharpening, you will need a 6- or 8-inch bench grinder, an aluminumoxide general-purpos e grinding wheel, a [green] silicon-carbide wheel and a single-point wheel dresser.

Place the tooth in position against the side of t he cutting wheel.

Slide the 2 fixing bolts through the tooth and cutting wheel. One bolt is longer and must also pass through the tooth on the opposite side of the cutting wheel.

Attach a flat washer, lock washer and nut to the bolts and tighten securely. Check that all cutting teeth bolts are securely ti ghtened.

Then follow these steps:

1. Use the single-point wheel dresser to create a ½" groove in the middle- of the silicon-carbide wheel to

accommodat e the radi us of cutting tooth carbide tip.

2. Hold the tooth vertical and inverted so t hat the carbide tip faces up. Do not grind the face of the carbide.

3. Use the aluminum-oxide w heel t o grind away some of the steel from the fr ont of the tooth below carbide

tip, exposing the front of the carbide tip. Do not allo w the cutting edge of the carbide tip to touch the grinding wheel, as this wil l ruin the tip.

4. Hold the tooth vertical, with carbide tip facing up and carefully and gradually grind away the dulled portion

of the carbide tip against t he silicon-carbide wheel, m aintaining a 30-degree front cutting angle. Push the tooth into the gr inding wheel – do not lift the tooth into the wheel.

5. Depending on the tooth d ullness, you may need to go back and forth between the aluminum oxide wheel

and the silicon-carbide wheel until you have restor ed a sharp cutting edge. As you become more familiar with sharpening, you will be able to do it quickly.

Sharp teeth increase effectiveness of t he mac hine, reduces working time and minimises wear and tear.

Stump Grinder

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Brake Adjust m en t

For fine adjustment, loosen set screw on side of br ake lever knob. Adjust clockwise to tighten brake; adjust counter clockwise to loosen brake. (W heel should loc k completely, tighten set screw).

For coarse adj ustment, turn adjusting nuts on brake cable fitting at brake cable mount.

Two-Minute Rule

The machine may be tipped backward or on its side to facilitate access for cleaning or service, but no longer than 2 minutes. If t he m achine is held in this position for too long, the engine can be dam aged by gasoline

draining into the c rankcase. Should this happen, perform an extra oil change on the engine over a few revolutions with the starter handle before starting the engine agai n.

Cleaning and washing

Regular cleaning and was hing will increase the machine’s life span. Make it a habit t o clean the machine directly after use, before the dirt st icks. Check before reusi ng that the fuel tank lid is proper ly in place to avoid getting water in the tank. Use cautio n whe n using h igh-pressure spray because warning decals, instruction signs and the engine can be damaged. Do not exceed 70 bar/1000 PSI water pressure when cleaning.

Lubricate the m achine af ter cleaning. This is particularly important if the machine is to be stored.

Lubricating bearings

Lubricate the cutting wheel bearings BEFORE first use. Re-lubricate the cut ting wheel bearings after ever y 10 hours of use. Failure to properly lubricate and maintain

the cutting wheel bearings may void product warranty.

Use a suitable grease gun (not supplied) and automotive wheel bearing gr ease (not supplied). Att ach the grease gun to the grease nipple on t he bearing holder (A) and pump in 1 or 2 squeezes of greas e. Always grease both bearings on either side of t he cutting wheel.

NOTE: Pump grease in slowly and carefully to

prevent damage to the b earing seals. • Use extreme caution when using a high pressure or high-volume grease gun.

Drive belts

The drive system of the st ump machine is composed of a 9J Joined Narrow V-belt. The stump machine’ s Vbelt tension should be checked daily.

Before beginning to check or adjust belt: shutdown the machine, be sure that all moving parts have come to a complete stop. E xtreme caution must be used to avoid death or ser ious injury. Stay clear of belts, pulley, clutch and cutting wheel when they are m oving.

To adjust belt tensio n, loosen the 2 bolts behind cl utch. Also loosen the 4 engine mounting bolts. Turn square head adjusting bolt on frame clockwise to tig hten belt , counter clockwise to loosen belt. (Make sure to tighten all bolts after proper belt adjustment is achieved).To check belt tension, you should be able to depress the belt down about 1/4-3/8”(6 -10 mm) from the origina l p o sition.

To extend belt life, proper tension must be maint ained. A loose belt will cause excessive cutting wheel slippage and belt failure. A belt that i s too tight can cause bearing, shaft and bel t failure.

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Troubleshooting

Symptom Cause Action

The engine will not start Fuel valve closed. Open the fuel valve.



User error Choke val ve open. Close the chock with cold engine. Engine switch in OFF posit ion. Turn engine sw itch to ON



Fuel system Fuel tank empty. Fill with fuel.

Machine s tored w ithout observing proper procedure from ch apter

“Storage/Winter storage”.

Clean tank, sludge reservoir and empty c ar buretor.

Fill the t ank with fresh fuel.

Contamination, water or ice in fuel system.

Clean ta nk , sludg e reservoir, fuel lines and c arburet or fill the tank with fresh fuel.

Carburetor problems.



Spark plug Wro ng spark plug ty pe. Replace the sp ark pl ug. Build-up on electro des . Check elect rod e gap and clean or

replace spark plug. Short circuit. Replace the sp ark pl ug. Gasoline or oil on the spark plug. Clean th e s park plug. A ir the engine

out. Start with full Throttle.



No spark after service Faulty engine switch, cable or

ignition.



Low compression authorized

Serious interior engine damage or

Contact an authorized service

workshop.

Contact a service workshop.

faulty valves.

Engine is gutless or unevenly



Air filter Clogged air filter. Clean or r eplace t he air filter.



Fuel system

Machine s tored w ithout observing proper procedure from ch apter

“Storag e/Winter storage”.

Clean tank, sludge reservoir and

empty c ar buretor.

Fill the tank with proper fu el.

(Blue exhaust) (Voluminous blue- white exhaust)

Tank fi lled with 2-cycle mixed oil. Tank fi lled with diesel.

Clean tank, sludge reservoir and

empty c ar buretor.

Fill the tank with proper fuel.

Open choke val ve.

Clean or r eplace t he air filter.

(Black exhaust) Choke left on.

Clogged air filter.

Contact an authori zed ser vice

Workshop.

Carburetor problems.

Ignition system Wrong spark plug t ype.

Build-up on electro des . Short circuit. Faulty ignition unit.

Replace the sp ark pl ug.

Check elect rod e gap and Clean or

replace spark plu g.

Contact an aut hori z ed service

Workshop.

Stump Grinder

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Problem Possible solutions

Belt coming off.

Belt engages late Or slips. 1. Ti ghten the belt as described in the operat or ’s manual.

Belt not st aying tight after adjustment.

The cutting wheel d oes not rotate

The cutting wheel continue s to rotate.

The parking brake is slipping

1. Pulleys not aligned.

2. Belt t ens ion is i ns ufficient. Adjus t belt tension.

2. Reduce cutt ing de pth.

1. Check for damage on the axle, pulley or key . Make sure that the setscrews are properly tightened.

2. Replace damag ed parts.

1. Engine speed i s insufficient to activate th e c entrifugal clutch.

2. Belt tens ion is i ns ufficient. Adjus t belt tension.

3. Clutc h is worn-replace s hoes and springs, and/or clut ch bearings.

1. Check that the throttle is disconnected.

2. Check for damage on the throttle cable.

3. Check that the throttle cable is properly mounted on t he thrott l e val ve.

4. The engine speed is not under 1000 rpm, which is required to Disengage the centrifugal clutch.

5. Inspect springs on clutch s hoes. If tension on clutch shoes is not enoug h to pull s hoes back, repl ace spri n g and c lut ch sho es.

1. Adjust the b r ake tensi on in the m anner described in the operator’s manual.

2. Check for damage on the brake rod or lever.

3. Check for wear o n the brake pads. Replace as necess ar y.

Storage

Winter Storage

At the end of the season, the machine should be readied for storage (or if it will not be in use for longer than 30 days). Fuel allowed to stand for long periods of time (30 days or more) can leave sticky residues that can plug the carburetor and disrupt engine funct ion.

Fuel stabilizers are an acceptable option as regards sticky residues during storage. If alkylate g asoline (Aspen) is used, stabilizers are unnecessary because this fuel is stable. However, you should avoid switching between regular and alkylate gasoline as sensitive rubber components can harden. Add stabilizer to the fuel in the tank or in the storage container. Always use the m ixi ng ratios specified by t he m anufacturer of the stabilizer. R un the engi ne for at least 10 minutes aft er add in the stabilizer so that it reaches the carburetor. Do NOT empty the fuel tank and the carbur etor if you have added stabilizer.

WARNING

NEVER store an engine wit h fuel in the tank i ndoors or in poorly vent ilated spaces where fuel vapor can come in contact w ith open flam e, sparks or a pilot light such as in a boiler, hot water tank, clothing drier, etc. handl e the fuel with cauti o n. It is v ery flammabl e and careless use can cause serious damage to person and pr operty. Dr ain the fuel into an approved cont ainer outdoors an d far away fr om open flame. NEVER use gasol ine for cleaning. Use a de-greaser and warm wat er instead.

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Storage

When ordering spare parts, please specify the purchase year, model, type, and serial number. Always use genuine Part s. An annual check-up at an author ized service workshop is a good way to ensure that your machine performs

its best the following season.

1. The paint to prevent rust.

2. Inspect the mac hine for worn or damaged parts and tighte n any nuts or screws that may have become loose.

3. Change the engine oil; dis pose of properly.

4. Open the fuel valve. Empty the fuel tank and the carburetor.

5. Close the fuel valve.

6. Remove the spark plug and pour about a tablespoon of engine oil in the cylinder. Turn over the engine so that the oil is evenly distributed and then refit the spark plug. Put the engine in the compr ession phase where the triangle mark on the sleeve of the starter is aligned w ith the upper hole in the starter. Note: Compression phase occurs every second revolution.

7. Lubricate the machine at all gr ease nipples, joints and cables .

8. Store the machine in a clean, dry place and cover it for extra protection.

9. Cover the cutting wheel and te eth with a thin coat of oil to av oid rust.

Specifications

Brake Disk-Lever activated Drive Direct Belt A Style Clutch Centrifugal clutch Cutters 12 cutters with tungsten carbide tips Cutting depth 12’’ Package siz e(L×W×H) 41.3”X19.7”X22” Weight. Approximately 51kg

Stump Grinder

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Some experts believe the incorrect or prolonged use of almost any product could cause serious injury or death. For information that may r ed uce you r risk of serious injury or death, consult the points below and additi onally, t he inf ormati on available at

• Consult all documentation, packaging and product labelling before use. Note that some products feature online documentation which should be printed and kept with the product.

• Check prod uct for loose / broken / damaged / missing parts, wear or leaks (if applicable) before each use. Never use a product with loose / broken / damaged / missing parts, wear or leaks (if applicable).

• Products must be inspected and serviced (if applicable) by a qualified specialist every 6 months assuming average r esidential use by a person of average weight and strength, above average technical aptitude, on a property matching average metropolitan specification. Intended use outside these guideli ne s could indicate t he product is not suitable for intended use or may require more regular inspection or servicing.

• Ensure all possible users of the product have completed an industry recognized training course before being given access to the product.

• The product has been supplied by a general merchandise retailer that may not be familiar with your specific application or your description of the application. Be sure to attain third-party approval for your application from a qualified specialist before use regardless of prior assurances by the retailer or its representatives.

• This product is not intended for use where fail-safe operation is required. As with any product (take an automobile, aircraft, computer or ball point pen for example), there is always a small chance of technical issues that needs to be repaired or may require replacement of the product or a part. If the possibility of such failure and the associated time it takes to rectify could in any situation inconvenience the user, business or employee then the product is not suitable for your requirements. This product is not for use where incor rect operation or a failure of any kind, including but not limited to a condition requiring prod uct retur n, replacem e nt, serv ice by a technic ian or replacement of parts could cause a financial loss, loss of employee time or an inconvenience requiring compensation.

• If this item has been purchased in error after considering the points above, simply contact the retailer directly for details of their returns policy, if required.

©2017 Baumr-AG. All rights reserved. No part of this document, including descriptive content, concepts, ideas, diagrams or images may be reproduced or transmitted in any form or by any means, electronic or

mechanical, including photocopying, scanning or recording, or any information stor age and retrieval system,

without express permission or consent from the publisher.

Baumr-AG SRG450 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Introduction

Safety Instructions

Protective Equipment

Important Information

Controls

Fuelling

Centrifugal Clutch

Safety Presence Grip Bar

Throttle

Brake

Operation

Before you st art

Starting the engine

Fuel valve

Choke control

Throttle

Safety presence grip bar

Starter handle

Throttle

Procedure for grinding a stump

Normal shutdown

Maintenance

Cutting Teeth

Brake Adjust m en t

Two-Minute Rule

Cleaning and washing

Lubricating bearings

Drive belts

Troubleshooting

Storage

Winter Storage

Storage

Specifications