Baumr-ag Bvx420 User manual

Blower/Vacuum – BVX420

User Manual

[Revision 4.0 October 2018]

READ THIS MANUAL CAREFULLY BEFORE USE – 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. Failure to add engine oil will void the product warranty.

Click to Watch:

Starting a 4-Stroke

Blower/Vacuum – BVX420

3

Table of Contents

Quick-Start Guide ..............................................................................................................................4

Safety...................................................................................................................................................5

Parts Identification.............................................................................................................................6

Set-Up..................................................................................................................................................7

Connecting and Disconnecting Tubes.............................................................................................. 7

Assembling as a Blower .................................................................................................................. 8

Assembling as a Vacuum ................................................................................................................ 8

Fuel, Engine Oil and Lubrication ...................................................................................................... 9

Operation ..........................................................................................................................................10

Starting and Stopping the Engine .................................................................................................. 10

Starting the Engine .................................................................................................................. 10

Stopping the Engine ................................................................................................................ 10

Using the Throttle .......................................................................................................................... 11

Operating as a Blower ................................................................................................................... 11

Operating as a Vacuum ................................................................................................................. 11

Emptying the Collection Bag.................................................................................................... 12

Maintenance .....................................................................................................................................13

Engine Oil...................................................................................................................................... 13

Air Filter......................................................................................................................................... 14

Spark Plug..................................................................................................................................... 14

Engine Idle Speed ......................................................................................................................... 15

Cleaning and Storage......................................................................................................................15

Troubleshooting...............................................................................................................................16

Technical Specifications.................................................................................................................17

Blower/Vacuum – BVX420

4

Quick-Start Guide

For safe operation, always comply strictly with the safety rules and recommendations that are available

in the user manual.

Use the following instruction for starting the engine for the first time. For more information, refer to the user manual.

123 4

Unscrew oil filler cap and

check oil level. Before first

use add 60ml 10W-40

engine oil. Screw cap

back on.

Check fuel level. If

required, unscrew fuel filler

cap and add unleaded

petrol. Screw cap back on.

Press and release fuel

primer bulb several times

until fuel is visible in bulb

and fuel feed tube.

Place ON/OFF switch in

“ON” (I) position.

5 6 7 8

Place choke in “COLD”

position.

Place throttle lock near

slow position.

Gently pull the starter cord

until you feel tension on it,

then rapidly pull it until

engine starts and allow

engine to warm up.

Move choke to “RUN”

position. If the engine

stalls, move to “COLD” and

restart (7) and allow to

warm up.

9

10

Place throttle lock at

desired running speed or

use throttle trigger.

When finished, place

ON/OFF switch in “OFF”

(O) position.

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Safety

If used correctly, the BVX420 is a powerful, high performance tool. If used improperly or without due

precaution, it may represent a hazard. For safe operation, always comply strictly with the safety rules

that follow, as well as those found throughout this manual.

•Do not use the machine without complete

understanding of the operating instructions, safety

precautions and risks. Keep this manual on hand

and refer to it before each use.

•Inspect the unit before use. Replace any missing or

damaged parts. Do not operate the unit with

damaged parts. Use only original equipment

manufacturer (OEM) replacement parts. Use of

unauthorised parts or accessories could lead to

injury, damage to the unit, and void any warranty.

•Check for fuel leaks and ensure that the throttle

mechanism returns automatically to the idle position

when released. Make sure all fasteners are in place

and secure. Do not operate the unit with loose or

malfunctioning parts.

•The machine must only be used by adults in good

physical condition, with knowledge of the operating

instructions.

•Use the machine for its intended purpose only.

•Inspect the work area before starting the unit.

Remove all debris and hard or sharp objects such as

glass, wire etc.

•Do not allow other people/animals to be within the

operating range of the machine. As a minimum, keep

all people/animals at least 15m (50’) away. Note that

there still may be a risk to bystanders from thrown

objects. Bystanders should be encouraged to wear

eye protection.

•Do not operate the machine if you are tired or under

the effects of alcohol and/or drugs.

•Never wear scarves, bracelets or anything else

which could get caught up in the machine.

•Wear close-fitting safety clothing, including long

pants, long sleeve shirt, protective non-slip safety

shoes, gloves, eye and ear protection and dust

mask.

•Operate the machine in well-ventilated and

adequately lit areas only. Avoid combustible

atmospheres or closed environments.

•Always work in a safe, balanced and firm-footed

position and do not over-reach. Grip the machine

firmly by the handles and keep all parts of the body

away from moving parts and the engine exhaust.

•Do not operate the machine upside-down (fuel filler

facing the ground).

•Do not touch the engine or exhaust. These parts get

extremely hot from operation, even after the unit is

turned off.

•If the machine jams, release the throttle and stop the

engine immediately.

•Allow the machine to cool before performing any

maintenance activities or storing the unit.

•Recommendations for operation:

•Do not operate the engine faster than required.

•Do not continuously operate the machine for

more than one hour at a time.

•Always use the complete and correct

blow/vacuum attachments.

•When used in vacuum mode, frequently check

the collection bag and empty it when full.

•If rubbish to be blown/vacuumed is stuck

together, it may be necessary to break it up

before using the machine on it.

•Do not operate the machine near open windows.

•Be aware of machine noise and be considerate

of others – operate the machine during

reasonable times of day.

•Clean the machine after each use – see Cleaning

and Storage. To reduce the risk of fire, keep the

engine and exhaust free from grass, leaves,

excessive grease or carbon build-up.

•Fill the fuel tank (unleaded fuel only) in a well-

ventilated area, away from sources of heat and with

the engine off. Never smoke while filling. Never

remove the fuel cap when the engine is running. If

fuel spills over while filling, move the machine at

least 3m away before continuing. Any fuel on the

machine should be removed or allowed to evaporate

before starting the engine.

•Fill the engine oil reservoir in a well-ventilated area,

away from sources of heat and with the engine off.

Never smoke while filling. Never remove the oil cap

when the engine is running. Do not overfill. If oil spills

over while filling, move the machine at least 3m away

before continuing. Any oil on the machine should be

removed before starting the engine.

•Never carry out maintenance while the engine is

running. Do not attempt servicing or repairs that are

not part of routine maintenance. Always follow the

manufacturer’s instructions for maintenance

operations. All services, other than the operations

shown in the manual, should be performed by

qualified personnel.

•Never use a damaged, modified, or improperly

repaired/assembled machine. Do not remove, modify

or deactivate any of the machine safety devices.

•Do not test the spark plug near the spark plug hole.

•Never use fuel for cleaning the machine.

•Do not douse or spray the unit with water or any

liquid.

•If the machine is no longer usable, dispose of it in an

environmentally responsible manner.

•Store the machine upright in a dry place and with the

fuel tank empty.

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Parts Identification

Figure 1

No. Name No. Name No. Name

1 Handle 11 Spark Plug Cover 21 Collector Bag Tube

2 Starter Cord 12 Locking Throttle Control 22 Vacuum Nozzle

3 Choke 13 ON/OFF Switch 23 Vacuum Tube

4

Fuel Primer Bulb

14

Cold-Start Throttle Button

24

Blow Tube

5

Air Filter Cover

15

Nozzle

25

Blow Nozzle

6

Fuel Cap

16

Tube Locking Screw

Tools

7 Fuel Tank 17 Impellor Cover 1 x Phillips head screwdriver / spark

plug spanner.

8 Handle (Vacuum mode) 18 Impellor Cover Screw

9 Oil Filler Cap 19 Throttle Control

10 Exhaust 20 Collector Bag

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Blower/Vacuum – BVX420

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Set-Up

The BVX420 can be assembled as either a blower or vacuum, as required.

Ensure that the engine is not running during assembly or disassembly.

Connecting and Disconnecting Tubes

Connecting Tubes

Refer to Figures 1 and 2. The blow/vacuum tubes and main unit connect using “bayonet” style fittings. To connect the

tubes:

1. For the main unit, use the Phillips head screwdriver to remove (rotate left) the locking screw (Figure 1, 16).

Note: The locking screws mounted to the tubes do not need to be unscrewed or removed – they can be pushed out

from inside the tube.

2. For the blower and collector bag tubes (1), align the arrows (2).

For the vacuum tubes (6), align the locating pin (3) and threaded insert (7) on one tube, with the channel (4) on the

opposing tube. Ensure the locking screw (5) is facing down.

3. Push the tubes together (A) – the locating pin (3) should enter the channel (4).

4. When the locating pin is fully inserted, twist the tubes in direction Buntil the parts “click” into place.

5. For connection to the main unit, insert the locking screw (Figure 1, 16) and rotate right until firm (do not over-

tighten).

For the tube locking screw (5), rotate right until firm (do not over-tighten).

Note: The vacuum tube (Figure 1, 23) does not use a locking screw for connecting to the main unit. • The vacuum

tubes do not have alignment arrows.

Figure 2

Disconnecting Tubes

Refer to Figure 2. To disconnect the tubes:

1. For the main unit, use the Phillips head screwdriver to remove (rotate left) the locking screw (Figure 1, 16).

Note: The locking screws mounted to the tubes do not need to be removed completely – they can be unscrewed

and pulled up from outside the tube.

2. Twist the tubes in direction C, then pull the tubes apart.

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Assembling as a Blower

Refer to Figures 1, 2and 3(see Connecting Tubes).

1. Connect the blow nozzle (Figure 1, 25) to the blow tube (24).

2. Connect the blow tube (24) to the main unit (X).

Figure 3

Assembling as a Vacuum

Refer to Figures 1, 2, 4 and 5.

1. Loosen the impellor cover screw (Figure 1, 18) by rotating it

to the left.

2. Swing the impellor cover (17) down and connect the

vacuum tube (23) to the main unit (X) (see Connecting

Tubes).

Note: The vacuum tube (23) does not have alignment

arrows or use a locking screw on the end where it connects

to the main unit (X). • When installing the vacuum tube,

align and connect it so that the ridges in the tube are facing

down.

3. Connect the vacuum nozzle (22) to the vacuum tube (23).

4. Connect the collector bag tube (21) to the main unit (X).

5. Place the small opening of the collector bag (20) over the

end of the collector bag tube (21). Secure the bag to the

tube using the Velcro strap. Adjust the shoulder strap as

necessary

Figure 5

Figure 4

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Fuel, Engine Oil and Lubrication

Use the recommended fuel and oil types only. The fuel type to be used is controlled by local

regulations and must be followed.

•Use 91 RON or better unleaded petrol only.

•Use SAE 10W-40 automotive engine oil, grade SH.

•Store all fuel and oils in approved containers.

•Always re-fuel in a well-ventilated area, away from sources of heat and with the engine turned off.

•Before unscrewing the fuel tank cap, position the machine on a solid, flat surface so that it cannot fall over. Slowly

open the fuel cap to allow any excess pressure to escape before removing completely.

Engine Oil Maintenance

The machine is not supplied with engine oil. You must fill the engine with suitable, unused engine oil

before starting the machine first time. Failure to do so will result in severe engine damage.

•Before first use, fill the engine with 60ml of suitable engine oil.

•Perform the first engine oil change after the first 6 hours of use. Subsequently, change the oil after each 24 hours of

use. See the Maintenance section for instructions.

•Always check the engine oil level before using the machine.

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Operation

Follow the following safety warnings for blower/vacuum operations:

•Always keep the area to be cleaned free from wires, stones, debris, tin cans and other obstacles.

•Do not use the machine to pick up damp material, water or liquid, glass, stones, metal, embers, burning or

hot material, or material contaminated with flammables or explosives.

•Do not suck in flammable, toxic or explosive fumes.

•Do not use the vacuum mode without the collector bag in place.

•Do not operate the machine upside-down (fuel filler facing the ground).

•Keep bystanders and animals at least 15m away from the working area.

•Do not manually insert objects into the blower/vacuum tube.

•Do not place hands or fingers in vacuum or exhaust opening.

•Hold the machine firmly in both hands when working with it.

•The machine must not be used by anyone under the age of 16.

Starting and Stopping the Engine

Place the unit firmly on the ground or sturdy work surface.

Make sure all bystanders are a minimum of 15m (50’)

away. Do not attempt to start near pilot lights or any open

flame. Do not smoke.

Starting the Engine

Refer to Figures 6, 7 and 8. To start the engine from cold:

1. Check the engine oil level (see Checking Engine Oil Level).

2. Press the primer bulb (A) several times to fill the carburettor. Fuel

should be visible in the primer bulb.

3. Place the choke (B) in the “COLD” position.

4. Place the ON/OFF switch (C) to the “ON” (“I”) position.

5. Place the locking throttle control (D) just off the “SLOW” position.

Note: As an alternative to using the locking throttle control (step 5),

use the cold-start throttle button (Figure 1, 14). To do so:

a. Place the locking throttle control completely in the “SLOW”

position.

b. Pull the throttle control trigger fully in toward the handle and hold

it there (see Using the Throttle).

c. Press the cold-start throttle button in and hold it there.

d. Release the throttle control trigger. The cold-start throttle button

should remain in the “in” position.

6. Rapidly pull the starter cord out approximately 50cm. Once pulled, allow

the cord to gently return to its original position. Repeat until the engine

starts.

7. Once started, allow the engine to warm up before use. This may take 30 to

60 seconds. After warm up, place the choke in the “RUN” position.

To start the engine when already warm it should not be necessary to place the

choke in the “COLD” position.

Stopping the Engine

1. Release the throttle control trigger or return the locking throttle control to

the (see Using the Throttle).

2. Place the ON/OFF switch in the “OFF” (“O”) position.

Figure 6

Figure 7

Figure 8

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Using the Throttle

The throttle is used to adjust the engine speed, which in turns controls blower/vacuum air speed. The throttle has two

methods of adjustment:

•Refer to Figure 9. Using the throttle control trigger (A), which you adjust using finger pressure. It has a return spring,

which automatically closes the throttle as pressure on the trigger is reduced. When the throttle control trigger is

pulled in towards the handle, the engine speed increases. When the throttle is allowed to move away from the

handle, the engine speed reduces.

•Refer to Figure 10. Using the locking throttle control (B), which remains in the set position until changed. This is

convenient for operating the machine at a constant throttle. To use, rotate the

locking throttle control to the desired engine speed. When rotated fully toward

“SLOW”, the engine will idle. When rotated fully toward “FAST”, the engine will

run at maximum speed.

Operating as a Blower

Understand and follow all safety warnings before using the

machine.

Refer to Figure 11.

1. Assemble the machine as a “blower”.

2. Start the engine.

3. Direct the blower nozzle as required.

4. Operate the throttle as required.

Operating as a Vacuum

Understand and follow all safety warnings before using the machine.

Figure 9

Figure 10

Figure 11

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Refer to Figure 12.

1. Assemble the machine as a “vacuum”.

2. Start the engine.

3. Place the collection bag strap over the shoulder and adjust it as

required.

4. Hold the unit using both handles, as shown, and direct the vacuum

nozzle in the required direction.

5. Operate the throttle as required.

Emptying the Collection Bag

1. Stop the engine.

2. Disconnect the collection bag from the machine.

3. Unzip the collection bag and empty its contents.

Figure 12

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Maintenance

The following procedures should be performed as and when necessary. Often, a reduction in machine performance

indicates that one or more maintenance procedures is required – refer to the Troubleshooting section for additional

information.

All maintenance activities should be performed in a safe and clean environment. The engine should be

cold and the fuel tank empty before commencing any maintenance procedure.

Engine Oil

Never start the engine without adequate engine oil in it. Failure to do so

will result in severe engine damage. Always check the oil level before

using the machine.

The BVX420 features a four-stroke petrol engine. Four-stroke engines require engine oil in

the crankcase for lubrication of internal components. Severe or irreparable damage may

occur if the engine is allowed to run without engine oil. The engine oil level requires regular

maintenance.

Note: Engine oil capacity is 60ml. The recommended oil type is 10W-40, grade SH.

Checking Engine Oil Level

Refer to Figures 1 and 13:

1. Place the machine in an upright position on a flat and level surface.

2. Clean the machine around the oil filler so that no dirt or other material enters the engine

when the cap is removed.

3. Remove the oil filler cap (Figure 1, 9) (rotate left) until fully unscrewed. Wipe the oil level indicator clean with a piece

of cloth or paper.

4. Re-insert the oil filler cap (rotate right) until fully screwed in.

5. Unscrew and remove the oil filler cap. Inspect the oil level indicator and ensure that the oil level is between the “MIN”

and “MAX” indicators. If the oil level is low (below or close to “MIN”), add additional oil of the correct type until the

correct level is reached. If the oil level is high (above “MAX”), drain some oil until the correct level is reached.

Changing Engine Oil

Perform the first engine oil change after the first 6 hours of use.

Subsequently, change the oil after each 24 hours of use.

It is recommended that the engine be warm, but not hot, when performing

oil changes. When the oil is warm it drains faster. • Always dispose of

used oil in an environmentally responsible manner and according to

regulations.

Refer to Figures 1 and 14.

1. Clean the machine around the oil filler so that no dirt or other material enters the

engine when the cap is removed.

2. Remove the oil filler cap (Figure 1, 9) (rotate left) until fully unscrewed. Wipe the oil

level indicator clean with a piece of cloth or paper.

3. Turn the machine over so that the oil filler is facing down and allow the oil to drain from the oil filler. Drain the oil into

a suitable container. Allow several minutes for the oil to drain completely.

4. Turn the machine over so that the oil filler is facing up and pour 60ml of suitable engine oil into the machine through

the oil filler.

5. Re-insert the oil filler cap (rotate right) until fully screwed in.

6. Place the machine in an upright position on a flat and level surface.

7. Unscrew and remove the oil filler cap. Inspect the oil level indicator and ensure that the oil level is between the “MIN”

and “MAX” indicators. If the oil level is low (below or close to “MIN”), add additional oil of the correct type until the

correct level is reached. If the oil level is high (above “MAX”), drain some oil until the correct level is reached.

Figure 13

Figure 14

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Air Filter

The air filter is used to prevent dirt and other particles from possibly entering the engine and causing internal damage to

it. The air filter requires cleaning at least every 10 hours of use.

Operating the machine without a functional air filter may cause

severe engine damage and will void any warranty.

A dirty or oil saturated air filter will restrict air flow. This is often

mistaken for an out of adjustment carburettor. Check the condition

of the air filter before adjusting the engine idle speed. • If the air filter

is damaged (torn, broken, disintegrating), replace it.

Cleaning the Air Filter

Refer to Figures 1, 15 and 16.

1. Place the machine in an upright position on a flat and level surface.

2. Press the tab (A) on the air filter cover (Figure 1, 15) to unlock it, then

swing it down (B) to open.

3. Remove the air filter (C) from the housing.

4. Wash the filter material in warm water and mild detergent.

5. Rinse the filter well and allow it to dry.

6. Place a few drops of clean engine oil on the filter then squeeze it a few

times to spread the oil through the filter material and remove any excess oil.

7. Place the air filter back in the housing and swing the air filter cover back

into position until it “clicks” closed.

Replacing the Air Filter

Follow the procedure for cleaning the air filter, however, ignore steps 4 and 5.

Spark Plug

The spark plug is used to ignite the air/fuel mixture inside the engine, causing

the engine to run. The spark plug has electrodes on one end and an electrical

terminal on the other. The spark plug requires regular maintenance.

If the spark plug is damaged (cracked insulator, broken or eroded

electrodes etc), replace it.

Removing the Spark Plug

Refer to Figures 1, 17 and 18.

1. Place the machine in an upright position on a flat and level surface.

2. Press the tab (A) on the spark plug cover (Figure 1, 11) to unlock it, then

pull it from the main unit.

3. Pull the electrical lead (B) from the terminal on top of the spark plug.

4. Clean the area around the spark plug so that no dirt or other material can

enter the engine when the spark plug is removed.

5. Use the spark plug tool to remove the spark plug (rotate left).

To re-install the spark plug:

1. Place the spark plug in its hole and screw it in (rotate right) until “finger

tight”.

2. Use the spark plug tool to tighten the spark plug approximately one

quarter turn (do not over-tighten).

3. Place the electrical lead over the spark plug terminal and push it down so

that it connects firmly with the terminal.

4. Re-install the spark plug cover and ensure that it “clicks” into position.

Figure 15

Figure 16

Figure 17

Figure 18

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Cleaning and Checking Spark Plug Gap

Refer to Figure 19. The spark plug (1) should be checked and cleaned, if required, after

every 20 hours of use.

1. Remove any carbon deposits on the spark plug electrodes (2) with a wire brush.

2. Clean the spark plug threads and the electrical terminal (3) on the top.

To check and adjust the spark plug “gap”:

1. Clean the spark plug.

2. Use “feeler” or “thickness” gauges (4) to measure the existing gap. The gauge must

drag a little when being slid between the electrodes (2) – this means the

measurement is fairly accurate.

3. Adjust the gap so that it is 0.5mm. If the gap needs to be reduced, gently tap the

electrode as required. If the gap needs to be increased, use pliers to gently pull the

electrode as required.

4. Measure the gap again and ensure it is within the specified range before re-installing

the spark plug.

Engine Idle Speed

Engine idle speed (engine speed when the throttle is not being used) is adjustable. The idle speed does not require

adjustment unless the engine will not idle normally - by either not running smoothly, stopping, or running faster than

necessary.

Before adjusting idle speed, ensure that the air filter is clean, the spark plug is the correct fuel is being used

and there is enough engine oil. • Incorrect idle speed adjustment may lead to engine damage - it is

recommended that idle speed be adjusted by an authorised technician.

Adjusting Engine Idle Speed

Refer to Figures 1 and 20.

1. Start the engine and allow it to warm up (you may have to use the throttle

if the engine stops when left to idle).

2. Place the machine in an upright position on a flat and level surface.

3. Access the adjustment screw through the hole (A) beneath the fuel

primer bulb (Figure 1, 4).

4. Insert the Phillips head screwdriver and engage the screw (it may be

necessary to stop the engine to do this).

5. Perform the adjustment according to the following points. If the engine is:

•Idling faster than necessary, rotate the adjustment screw to the left.

•Slowing and stopping when left to idle, rotate the adjustment screw

to the right.

Rotate the adjustment screw no more than 1/8 of a turn each time. After each adjustment, start the engine and

check whether or not the idle is normal.

Cleaning and Storage

Cleaning

•Use a suitable brush to clean the unit. Do not use strong detergents - cleaners that contain citrus oils such as lemon

and solvents such as kerosene can damage plastic components. Wipe off any moisture with a soft cloth.

•Empty the vacuum bag. Turn it inside out and shake out all debris. Hand wash the vacuum bag annually with soapy

water and allow to air dry.

Storage

•Empty the fuel tank and allow the machine to cool before storing it.

•Clean the unit after each use.

•Store the unit in a dry, well-ventilated area and out of the reach of children.

Figure 19

Figure 20

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Long Term Storage

If the unit is to be stored for an extended period, use the following procedure.

1. Prepare the unit as normal for storage.

2. Start the engine and allow it to run until it stalls. This ensures that all the fuel has been drained from the carburettor.

3. Allow the engine to cool. Remove the spark plug and put 30ml of clean engine oil into the cylinder. Pull the starter

rope slowly to distribute the oil. Reinstall the spark plug.

Troubleshooting

The following information may assist in identifying a problem and rectifying it.

Note: Some procedures listed here may need to be performed by a qualified service technician.

Difficulty starting the engine (particularly when cold).

Possible Fault Action

Spark plug is “wet” with fuel or

moisture

Remove the spark plug and ensure that it is dry before re-inserting it.

Spark plug is faulty – no spark

produced

Replace the spark plug.

Engine “flooded” with fuel Place choke in “RUN” position. Leave ON/OFF switch in “OFF” position. Pull the starter

cord several times to assist clearing excess fuel from engine before attempting to start

engine.

Not enough or too much engine oil in

crankcase

Check oil level and ensure that level is at or just below “MAX” indicator.

Engine starts but does not idle.

Possible Fault Action

Blocked air filter Check and clean air filter.

Idle speed requires adjustment Adjust idle speed until engine runs smoothly and at a reasonable speed when idling.

Difficulty restarting the engine after use or engine stops suddenly during use.

Possible Fault Action

No fuel Check fuel level and ensure adequate fuel is available.

Carbon build-up on spark plug Remove the spark plug and clean carbon from electrodes before re-inserting it.

Carburettor blocked Clean the carburettor.

Reduced engine speed/power during use.

Possible Fault Action

Blocked air filter Check and clean air filter.

Carbon build-up in engine and/or

entry to exhaust silencer

Remove engine cylinder head and clean carbon from it. For the exhaust silencer, remove it

and clean any carbon deposits from the exhaust entry port.

Carbon build-up on spark plug Remove the spark plug and clean carbon from electrodes before re-inserting it.

Carburettor blocked Clean the carburettor.

BAUMR-AG BAUMR-AG BAUMR-AG BAUMR-AG BAUMR-AG BAUMR-AG BAUMR-AG BAUMR-AG BAUMR-AG BAUMR-AG BAUMR-AG

Blower/Vacuum – BVX420

17

Reduced vacuum suction.

Possible Fault Action

Collection bag full Empty collection bag and ensure there are no blockages in the connection pipe.

Blocked tubing/airway Remove vacuum tubes and clear any obstacles. Check impellor and clear any obstructions.

Reduced blow air speed.

Possible Fault Action

Blocked tubing/airway Remove the blower tubes and clear any obstacles. Check the impellor and clear any

obstructions.

Technical Specifications

Engine Type 4-stroke, single cylinder

Engine Capacity 25cc

Fuel Type Unleaded 91 RON or better

Fuel Tank Capacity 400ml

Engine Power Output 0.6kW

Engine Oil Type SAE 10W-40 automotive engine oil, grade SH

Engine Oil Capacity 60ml

BAUMR-AG BAUMR-AG BAUMR-AG BAUMR-AG BAUMR-AG BAUMR-AG BAUMR-AG BAUMR-AG BAUMR-AG BAUMR-AG BAUMR-AG

Some experts believe that the incorrect or prolonged use of almost any product may lead to

serious injury or death. To help reduce your risk, refer to the information below. For more

information, see www.datastreamserver.com/safety

•Consult all documentation, packaging and product labelling before use. Note that

some products feature documentation available online. It is recommended to print

and retain the documentation.

•Before each use, check the product for loose/broken/

damaged/missing parts, wear or leaks (if applicable). Never use a product with

loose/broken/damaged/missing parts, wear or leaks.

•Products must be inspected and serviced (if applicable) by a qualified technician

every 6 months. This is based on average residential use by persons of average

size and strength, and on a property of average metropolitan size. Use beyond

these recommendations may require more frequent inspections/servicing.

•Ensure that all users of the product have completed a suitable industry recognised

training course before being allowed access to the product.

•If this product has been purchased in error after considering the information

presented here, contact the retailer directly for details of their returns policy, if

required.

•The product has been supplied by a general merchandise retailer that may not be

familiar with your specific application or description of application. Be sure to attain

third-party approval from a qualified specialist for your application before use,

regardless of any assurances from the retailer or its representatives.

•This product is not intended for use where fail-safe operation is required. As with

any product (for example, automobile, computer, toaster), there is the possibility of

technical issues that may require the repair or replacement of parts, or the product

itself. If the possibility of such failure and the associated time it may take to rectify

could in any way inconvenience the user, business or employee, or financially

affect the user, business or employee, then the product is not suitable for your

requirements. This product is not intended for use where incorrect operation or a

failure of any kind, including but not limited to, a condition requiring product return,

replacement, parts replacement or service by a technician may cause financial

loss, loss of employee time or an inconvenience requiring compensation.

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 storage and retrieval system, without express permission or

consent from the publisher.

Baumr-AG BVX420 User manual

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