BAUMR-AG BLWPTLBMAAMB5 Backpack 2-Stroke Petrol Powered User Manual

User Manual

[Revision 4.0 October 2022]

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

adequ

ate engine oil of the correct type to the engine before use. Failure to add engine oil will void the product warranty.

MBX450 Backpack Power Sprayer

Safety

Safety messages are designed to alert you to possible dangers or hazards that could cause death, injury or

equipment or property damage if not understood or followed. Safety messages have the following symbols:

You WILL be KILLED or

SERIOUSLY INJURED if you do

not follow instructions.

You CAN be KILLED or

SERIOUSLY INJURED if you do

not follow instructions.

You CAN be INJURED if you do

not follow instructions or equipment

damage may occur.

It is vital that you read and understand this

user manual before using the product,

including safety warnings, and any assembly

and operating instructions. Keep the manual

for future reference.

Safety precautions and recommendations

detailed here must be fully understood and

followed to reduce the risk of injury, fire,

explosion, electrical hazard, and/or property

damage.

Safety information presented here is generic

in nature – some advice may not be

applicable to every product. The term

"equipment" refers to the product, be it

electrical mains powered, battery powered or

combustion engine powered.

• Before Use - If you are not familiar with the

safe operation/handling of the equipment or

are in any way unsure of any aspect of

suitability or correct use for your

application, you should complete training

conducted by a person or organization

qualified in safe use and operation of this

equipment, including fuel/electrical handling

and safety.

• Do NOT operate the equipment in

flammable or explosive environments, such

as in the presence of flammable liquids,

gases, or dust. The equipment may create

sparks or heat that may ignite flammable

substances.

• Keep clear of moving parts.

• Equipment may be a potential source of

electric shock or injury if misused.

• Do NOT operate the equipment if it is

damaged, malfunctioning or is in an

excessively worn state.

• Do NOT allow others to use the equipment

unless they have read this manual and are

adequately trained.

• Keep packaging away from children - risk

of suffocation! Operators must use the

equipment correctly. When using the

equipment, consider conditions and pay

due care to persons and property.

General Work Area Safety

• Work areas should be clean and well it.

• Do not operate the equipment if

bystanders, animals etc are within

operating range of the equipment or the

general work area.

• If devices are provided for connecting dust

extraction / collection facilities, ensure

these are connected and used properly.

Dust collection can reduce dust-related

hazards.

General Personal Safety

• Wear appropriate protective equipment

when operating, servicing, or when in the

operating area of the equipment to help

protect from eye and ear injury, poisoning,

burns, cutting and crush injuries. Protective

equipment such as safety goggles,

respirators, non-slip safety footwear, hard

hat, hearing protection etc should be used

for appropriate equipment / conditions.

Other people nearby should also wear

appropriate personal protective equipment.

Do not wear loose clothing or jewellery,

which can be caught in moving parts. Keep

hair and clothing away from the equipment.

• Stay alert and use common sense when

operating the equipment. Do not over-

reach. Always maintain secure footing and

balance.

• Do not use the equipment if tired or under

the influence of drugs, alcohol, or

medication.

• This equipment is not intended for use by

persons with reduced physical, sensory, or

mental capabilities.

General Fuel Safety

• Petrol/fuel/gasoline is extremely flammable

– keep clear of naked flames or other

ignition sources.

• Do not spill fuel. If you spill fuel, wipe it off

the equipment immediately – if fuel gets on

your clothing, change clothing.

• Do NOT smoke near fuel or when

refuelling.

• Always shut off the engine before

refuelling.

• Do NOT refuel a hot engine.

• Open the fuel cap carefully to allow any

pressure build-up in the tank to release

slowly.

• Always refuel in well ventilated areas.

• Always check for fuel leakage. If fuel

leakage is found, do not start, or run the

engine until all leaks are fixed.

General Carbon-Monoxide Safety

• Using a combustion engine indoors CAN

KILL IN MINUTES. Engine exhaust

contains carbon-monoxide – a poison you

cannot smell or see.

• Use combustion engines OUTSIDE only,

and far away from windows, doors, and

vents.

General Equipment Use and Care

• The equipment is designed for domestic

use only.

• Handle the equipment safely and carefully.

• Before use, inspect the equipment for

misalignment or binding of moving parts,

loose components, damage, or any other

condition that may affect its operation. If

damaged, have the equipment repaired by

an authorised service centre or technician

before use.

• Prevent unintentional starting of the

equipment - ensure equipment and power

switches are in the OFF position before

connecting or moving equipment. Do not

carry equipment with hands or fingers

touching any controls. Remove any tools or

other items that are not a part of the

equipment from it before starting or

switching on.

• Do not force the equipment. Use the

correct equipment for your application.

Equipment will perform better and be safer

when used within its design and usage

parameters.

• Use the equipment and accessories etc. in

accordance with these instructions,

considering working conditions and the

work to be performed. Using the equipment

for operations different from those intended

could result in hazardous situations.

• Always keep equipment components

(engines, hoses, handles, controls, frames,

housings, guards etc) and accessories

(cutting tools, nozzles, bits etc) properly

maintained. Keep the equipment clean and,

where applicable, properly lubricated.

• Store the equipment out of reach of

children or untrained persons. To avoid

burns or fire hazards, let the equipment

cool completely before transporting or

storing. Never place or store the equipment

near flammable materials, combustible

gases, or liquids etc.

• The equipment is not weather-proof, and

should not be stored in direct sunlight, at

high ambient temperatures or locations that

are damp or humid.

• Do not clean equipment with solvents,

flammable liquids, or harsh abrasives.

• For specific equipment safety use and care,

see Equipment Safety.

MBX450 Backpack Power Sprayer

General Electrical Safety

• Inspect electrical equipment, extension

cords, power bars, and electrical fittings for

damage or wear before each use. Repair or

replace damaged equipment immediately.

• Ensure all power sources conform to

equipment voltage requirements and are

disconnected before connecting or

disconnecting equipment.

• When wiring electrically powered

equipment, follow all electrical and safety

codes.

• Wherever possible, use a residual current

device (RCD).

• High voltage / high current power lines may

be present. Use extreme caution to avoid

contact or interference with power lines.

Electrical shock can be fatal.

General Electrical Safety

• Electrically grounded equipment must have

an approved cord and plug and be

connected to a grounded electrical outlet.

• Do NOT bypass the ON/OFF switch and

operate equipment by connecting and

disconnecting the electrical cord.

• Do NOT use equipment that has exposed

wiring, damaged switches, covers or

guards.

• Do NOT use electrical equipment in wet

conditions or in damp locations.

• Do NOT use electrical cords to lift, move or

carry equipment.

• Do NOT coil or knot electrical cords, and

ensure electrical cords are not trip hazards.

General Service Information

• The equipment must be serviced or

repaired at authorised service centres by

qualified personnel only.

• Replacement parts must be original

equipment manufacturer (OEM) to ensure

equipment safety is maintained.

• Do NOT attempt any maintenance or repair

work not described in this manual.

• After use, the equipment and components

may still be hot – allow the equipment to

cool and disconnect spark plugs and/or

electrical power sources and/or batteries

from it before adjusting, changing

accessories, or performing repair or

maintenance.

• Do NOT adjust while the equipment is

running.

• Perform service-related activities in suitable

conditions, such as a workshop.

• Replace worn, damaged or missing

warning/safety labels immediately.

Important Safety Reminders

• The engine must use mixed fuel with volume rate of 50:1 for gasoline to two-stroke automobile oil.

• 3 to 5 minutes’ low speed rotation after start and before stop is very necessary to prevent damage of some parts or body harm caused by violent

movement of the engine,

• High-speed rotation without load must be prohibited! It is strictly prohibited to stop the engine suddenly at high speed.

• When adding fuel, the engine should stop, fire sources must be far away, and smoking is prohibited.

• To avoid electric shock, do not touch the cap of spark plug and the conducting wire during the rotation of the engine.

• The surface of the muffler and the cylinder is very hot, so neither the hands nor the body should be in contact with them. Children should be kept

away from the engine.

• It is recommended that the overall mass of the knapsack mist-blower at the maximum load, measured with full fuel and chemical tanks, as

indicated by the manufacturer, not exceed 30 kg for men and 25 kg for women.

• The use of the machine may be hazardous. The impeller rotating in the volute case may be cut you if you try to touch it. It is important that you

read, fully understand the following safety precautions and warning.

• Do not lend or rent your sprayer- duster without the User Manual. Be sure that anyone using your sprayer reads and understands the information

contained in this manual.

Operator Safety

• The operator must be in good physical condition and mental health. Following personnel can’t use the machine.

• Mental patients.

• Drunks or people with alcohol problems.

• Under-age or old people.

• Person who have just exercised strenuously or under slept.

• Tired person or patient and others who can’t operate the machine normally.

• Person with no knowledge of the machine.

Proper Clothing

• To reduce the risk of injury, the operator should wear proper protective apparel.

• Read the user manual before using this product.

• The machine’s noise may damage your hearing; wear ear mufflers to protect your hearing.

• Wear glasses and gauze mask to protect your eyes and face. Wear the gauze mask to prevent accidental poisoning. Wear a face mask to protect

against dust and pesticide.

• ear protective shoes to protect your feet.

• Gloves must be worn to avoid contact with chemicals and pesticides.

• Proper clothing must be worn to avoid contact with chemicals and pesticides.

Use of the Machine: Starting the Engine

• Put the dust gate handle to the lowest position before starting the engine, otherwise chemical will be jetted when starting engine.

• Be sure nobody stands in front of nozzle, even though dust gate closed, residual dust in pipe will be blown out.

MBX450 Backpack Power Sprayer

Spray Operation

• It is fine to carry out operation during cool weather with little wind. For example, in the early morning or in the late afternoon. This can reduce the

evaporation and drift of chemicals and improve the protecting effect.

• Operator should move windward.

• If your mouth or eyes are spattered with chemicals, wash them with clean water and go to see a doctor.

• If the operator has a headache or dizziness, stop working at once and go to see a doctor in time.

• For the operator’s safety, dusting must be carried out strictly according to the instruction of the chemicals and agricultural requirements.

• If you want to stop the engine while dusting, the dust gate must be shut at first.

• DO NOT DIRECT THE AIR BLAST TOWARDS BYSTANDERS SINCE THE AIR CAN BLOW SMALL OBJECTS AT HIGH SPEEDS.

• YOUR POWER TOOL PRODUCES TOXIC EXHAUST FUMES AS SOON AS THE ENGINE IS RUNNING. THESE FUMES MAY BE

COLOURLESS AND ODOURLESS AND CONTAIN UNBURNED AND CONTAIN UNBURNED HYDROCARBONS AND BENZOL. NEVER

OPERATE THE POWER TOOL IN ENCLOSED OR POORLY VENTILATED LOCATIONS.

• DURING OPERATION, THE MUFFLER OR CATALYTIC MUFFLER AND SURROUNDING COVER MAY BECOME EXTREMELY HOT. AVOID

CONTACT DURING AND IMMEDIATELY AFTER OPERATION. ALWAYS KEEP EXHAUST AREA CLEAR OF FLAMMABLE DEBRIS.

ALLOW THE ENGINE AND MUFFLER TO COMPLETELY COOL BEFORE PERFORMING ANY MAINTENANCE ACTIVITY.

• AFTER WORKING, WASH YOUR HANDS AND CLEAN ALL OF CLOTHING. YOU KNOW THAT THE REMAINING PESTICIDE CAN STAIN

WHAT YOU TOUCH.

Fuelling Safety

• Pay attention to fires. Please keep the fuel tank far away from the flame or sparks. Don’t smoke near fuel. When the machinery is running, ban

adding fuel to the fuel tank.

• Open the fuel cap carefully to allow any pressure build-up in the tank to release slowly and avoid fuel spillage.

• Fuel your power tool only in well-ventilated areas. If you spill fuel, wipe the machine immediately-if fuel gets on your clothing, change

immediately.

• Check for leakage. To reduce the risk of serious of fatal burn injuries, do not start or run the engine until leak is fixed.

• After fuelling, tighten down the screw-type fuel possible.

• Gasoline is an extremely flammable fuel. Keep clear of naked flames. Do not spill any fuel- do not smoke.

• Always shut off the engine before refuelling.

• Do not fuel a hot engine-fuel may spill and cause a fire.

Operational Safety

Read this manual carefully. Be sure you understand how to operate this machine properly before you use it.

Protective clothing:

• Wear a flanged cap

• Wear dirt/fog-proof glasses.

• Wear a gauze mask.

• Wear long gloves.

• Wear coat that can guard against chemicals.

• Wear boots.

MBX450 Backpack Power Sprayer

The Following personnel cannot use the machine:

• Mental patients.

• Drunks or those with alcohol problems.

• Under-age or old person.

• Persons with no knowledge of the machine.

• Tired person or patient and others who cannot operate the machine normally.

• Persons who have just exercised strenuously or under slept.

• Women who are pregnant or breast-feeding.

DANGER!

• Do not start a fire or smoke nearby the machine.

• Never touch the machine when it is hot or running.

• Never pour fuel on the machine when it is hot or running.

• Always tighten the fuel tank lid.

• Always move at least 10 feet away from the fuel container before starting the machine.

MBX450 Backpack Power Sprayer

Safety Symbols

The product may have safety warning labels attached to it, explained below. Understand the symbols on your

product and their meanings. If any stickers become unreadable, unattached etc., replace them.

Flammable Material Hazard

Flammable liquids, gases, or

substances etc may present.

Avoid ignition sources and open

flames. Danger of fire.

Read User Manual

Read and fully understand

product safety warnings,

operation, procedures etc before

using the product.

Use Hand Protection

Wear appropriate hand protection

and take due care as the product

or use of the product may present

hand hazards.

Carbon-Monoxide Hazard

Do not use the product in

confined areas or without

adequate ventilation. Carbon-

monoxide poisoning can be fatal.

Electrocution / Electrical Shock

Hazard

High voltage or high current

electricity may be present or

required by the product. Take

due care when handling electrical

products, cables, plugs and

leads. Electrical shock can be

fatal.

Toxic Fumes / Dust Hazard

Using the product or by-products

from use may produce fumes,

smoke or particles that could be

harmful if inhaled. Wear

appropriate breathing protection

and have adequate ventilation.

Explosive Material Hazard

Combustible liquids, gases, or

substances etc may be present.

Avoid ignition sources and open

flames. Danger of explosion.

Cutting / Amputation Hazard

The product may have blades,

edges or mechanical devices that

can cause severe cut injury to

fingers, limbs etc. Take due care

when handling and using the

product.

Crush Hazard

The product may have blades,

edges or mechanical devices that

can cause severe crush injury to

fingers, limbs etc. Take due care

when handling and using the

product.

Single Operator Only

The product must be operated by

a single person only. More than

one person operating the product

may introduce additional hazards.

Use Face Protection

Wear appropriate full-face

protection and take due care as

the product or use of the product

may present face and eye

hazards.

Use Foot Protection

Wear appropriate foot protection

and take due care as the product

or use of the product may present

foot hazards.

Use Eye / Ear / Head Protection

Wear appropriate eye and / or

ear and / or head protection and

take due care as the product or

use of the product may present

eye, hearing, and head hazards.

Running Hazard

Do not run on or near the product

as doing so may present a fall

hazard.

Diving Hazard

Do not dive into the product as

doing so may present a neck /

head injury hazard.

Adult Supervision Required

Always supervise children and

other users of a product to

prevent drowning or injury.

Skin Penetration / Puncture

Hazard

The product may produce

pressure, emit liquids or objects

that can cause severe injury to

fingers, limbs, blood etc. Take

due care when handling and

using the product.

Hot Surface Hazard

Be aware that the product may

produce high temperatures and

hot surfaces that can cause burn

injuries.

Flying Debris Hazard

Be aware that the product or use

of the product may present

hazards produced by flying

debris. Wear appropriate clothing

and protective devices.

Moving Parts Hazard

Be aware that the product

contains or uses mechanical

devices that move or rotate.

Always wait for moving parts to

stop fully before handling the

product, adjusting, maintenance

etc.

MBX450 Backpack Power Sprayer

Carbon-Monoxide Hazard

Do not use the product in

confined areas or without

adequate ventilation. Carbon-

monoxide poisoning can be fatal.

Pull Hazard

Be aware that the product

contains or uses mechanical

devices that can pull in objects

and can cause severe injury to

fingers, limbs etc. Take due care

when handling and using the

product.

Slope / Fall Injury Hazard

Be aware that using the product

on sloping surfaces or in slippery

conditions may present additional

dangers from falls and contact

with blades, moving parts, hot

surfaces etc.

"Slam Dunk" Warning

Do NOT attempt "slam dunk"

manoeuvres as this may result in

severe injury due to falling,

product breakage or collapse etc.

Electrocution / Electrical Shock

Hazard - Outdoor

High voltage or high current

electricity may be present or

required by the product. Do NOT

use in rain, damp, or wet

conditions. Electrical shock can

be fatal.

Electrocution / Electrical Shock

Hazard - Disconnect

High voltage or high current

electricity may be present or

required by the product. Always

disconnect the product from the

electrical supply before handling

the product, adjusting,

maintenance etc.

Power Line Electrocution

Hazard

High voltage / high current power

lines may be present. Use

extreme caution to avoid contact

or interference with power lines.

Electrical shock can be fatal.

"Kick-Back" Hazard

High level of "kick-back" hazard

that can cause the machine to

suddenly rotate towards operator.

Kick-back injury can be fatal.

Winch Operator Position

Hazard

Do NOT stand between winch

and load. Do NOT use winch to

move people.

Winch Lift Hazard

Do NOT LIFT load vertically. Use

machine to PULL only.

Cable Hazard

Ensure that load bearing cable is

not kinked or knotted.

Winch Cable Hazard

Ensure that there is a minimum

number of cable coils on

winching mechanism.

Winch Hook Hazard

Carry hook to load – do NOT

throw or run.

Flash / Blinding Hazard

Wear appropriate eye protection

for welding. Direct exposure to

weld arcs may cause permanent

eye injury.

Laser Hazard

Laser may be in use – do NOT

look directly at laser or allow

others to.

MBX450 Backpack Power Sprayer

Table of Contents

Safety ............................................................................................................................................................. 2

Safety Symbols ........................................................................................................................................................... 6

Parts Identification ....................................................................................................................................... 9

Assembly ..................................................................................................................................................... 10

Spraying .................................................................................................................................................................... 10

Sprayer Configuration ............................................................................................................................................... 12

Dusting ...................................................................................................................................................................... 15

Dusting Configuration ............................................................................................................................................... 16

Anti-Electrostatic Installation .................................................................................................................................... 20

Operation ..................................................................................................................................................... 20

Before Operation ...................................................................................................................................................... 20

Adding Fuel ............................................................................................................................................................... 20

Adding Chemicals ..................................................................................................................................................... 20

Cold Starting ............................................................................................................................................................. 21

Warm Starting ........................................................................................................................................................... 22

Starting the Engine ................................................................................................................................................... 22

Stopping the Engine ................................................................................................................................................. 22

Misting/Dusting Operation ........................................................................................................................................ 22

Maintenance ................................................................................................................................................ 24

Spraying Units .......................................................................................................................................................... 24

Fuel System Maintenance ........................................................................................................................................ 24

Air Filter and Plug ..................................................................................................................................................... 24

Troubleshooting ......................................................................................................................................... 25

Specifications ............................................................................................................................................. 28

MBX450 Backpack Power Sprayer

Parts Identification

No. Name

1 Main unit

2 Blower pipe

3 Chemical tube

4

Dust tank

5

Dust pipe

6

Securing ring (for dust pipe)

7

Ball valve

8 Grounding chain

9 Tool

10

O-ring

11

Pipe clamps

11

9

8

7

6

5

4

3

2

1

10

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MBX450 Backpack Power Sprayer

Assembly

Spraying

1. Assembly of chemical tank: Remove the lower cover of chemical tank, change into the pressing lid which is

connected with the rubber tube (do not forget to put on the sealing ring, as shown in Fig.2.). Connect the lid

to the rubber tube as shown in Fig.1.

Figure 1

1) Lid

2) Sealing washer

3) Jammer

4) Filter net

5) Tube

6) Tank

7) Take over

8) Tie-in

9) Take over

Figure 2

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MBX450 Backpack Power Sprayer

2. Connect the spraying pipe to the machine, as shown in Fig.3.

Figure 3

1) Clip

2) Bend pipe

3) Tube

4) Switch

5) Plastic pipe

6) Handle

7) Handle

8) Tube

9) Plastic pipe

10) Ring

11) Nozzle

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MBX450 Backpack Power Sprayer

Sprayer Configuration

Step 1: Use a flathead or a Phillips head screwdriver

to loosen the pipe clamp.

Step 2: Secure the bendable to the main unit, as

shown.

Step 3: First, push the straight piece of blower pipe

into the bendable pipe. Then, place the ball valve

under the pipe clamp and secure it.

Step 4: Push the trigger assembly over the piece of

straight pipe.

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MBX450 Backpack Power Sprayer

Step 5: Secure the trigger assembly with a 9mm

spanner or socket.

Step 6: Push the curved pipe onto the straight pipe.

Step 7: Push the blower nozzle onto the curved pipe. Step 8: Push the chemical tube onto the tank’s outlet.

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MBX450 Backpack Power Sprayer

Step 9: Push the other end of the chemical tube onto

the ball valve.

Step 10: Do the same on the other side of the ball

valve.

Step 11: Push the other end of the chemical tube

onto the blower nozzle.

ASSEMBLY IS COMPLETE

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MBX450 Backpack Power Sprayer

Dusting

Remove the chemical tank, take down the inlet rubber tube, outlet rubber tube, suction strainer, spraying lid

plate, pressing lid and union, change for lower lid of chemical tank, then connect the dusting pipe as shown in

Fig.4.

Figure 4

1) Chain

2) Bend pipe

3) Clip

4) Plastic tube

5) Handle

6) Handle

7) Plastic tube

8) Plastic tube

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MBX450 Backpack Power Sprayer

Dusting Configuration

Step 1: Remove the tank outlet valve

from the chemical tank.

Step 2: Attach the securing ring (6) to the chemical tank.

Step 3: Pull the rubber cap off the blower tube. Then secure one end of the dust pipe (5) to the chemical tank

and the other to the blower pipe.

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MBX450 Backpack Power Sprayer

Step 4: Loosen the pipe clamp from the opposite side of the chemical tank and pull the black rubber

corrugated tube off.

Step 5: Loosen the pipe clamp and pull the rubber tube off the black valve.

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MBX450 Backpack Power Sprayer

Step 6: Use the supplied tool to remove the valve then reinsert it on the opposite side, as shown.

Step 7: Secure the black valve onto the chemical tank.

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MBX450 Backpack Power Sprayer

Step 8: Remove the top cover and insert the dust tank.

Step 9: You can remove the chemical pipe from the blower tube, you won’t need it in the dust configuration.

Step 10: Install the grounding chain through the inside of the blower pipe, you will need to loosen the pipe

clamp and remove one end of the corrugated pipe to do this. (The image shows it on the outside just for a

visual reference).

The chain will just hang to the ground which will dissipate static build up.

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MBX450 Backpack Power Sprayer

Anti-Electrostatic Installation

Dusting or spreading granules and chemical may cause electrostatics, that is related to factors, such as the kind

of chemicals, air temperature, air humidity, etc. In order to prevent electrostatics, please use the attachment-

insurance chain. When the air becomes dry, the electrostatic is more serious, in particular when the long

membranous tube for dusting and granules spreading is used, electrostatic will often happen. Please pay

attention. One end of the insurance chain is inserted into the jet pipe, vibrated freely and touched to the ground.

Connect another end with conducting wire, then the conducting wire and insurance chain on bend pipe by screw.

Assembly is as shown in Fig.4.

Operation

Before Operation

•

Check whether the spark plug and all the connections are tightened.

•

Check whether the cooling air channel is clogged. If so, the engine will over-heat.

•

Check whether the air filter is dirty. If so, the dirt will reduce the amount of air drawn in. The engine will not

run well and waste fuel.

•

Check whether the gap of the spark plug is 0.6-0.7mm.

•

Pull the starter 2 or 3 times, check whether it rotates normally.

Adding Fuel

1. The fuel for this machine is a mixture of gasoline and 2-stroke oil. The ratio between them is determined by

the oil instruction. Incorrect gasoline, oil and mixture may damage the engine.

2. Never fuel the engine when it is hot or running.

3. When adding fuel, never remove the strainer.

Adding Chemicals

•

During spraying operation, while adding chemical, the switch must be turned OFF, see Fig.5.During dusting

operation, dusting valve throttle and fuel lever should be on the bottom position, otherwise, the machine will

have chemical leaks.

Figure 5

•

As powder chemicals can easily become blocked, chemicals should not be in the chemical tank for an

extended time.

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MBX450 Backpack Power Sprayer

•

While spraying, the chemical tank lid should be secured tightly. After adding powder chemicals, please clean

the screw of the chemical tank mouth, then secure the lid tightly.

Cold Starting

Please operate according to the following procedures:

1. Press primer bulb until gasoline fills into the primer bulb, see Fig.6.

Figure 6

2. Put the switch ON the starting position.

Figure 7

3. Put the choker on the full position.

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MBX450 Backpack Power Sprayer

Figure 8

4. Pull the starter for a few times and return it slowly. Do not leave the handle to return freely to avoid

damaging the starter.

5. Close the choke and pull starter handle until the engine starts.

6. After starting the engine, open choke fully.

7. Let the engine run at a low speed for 2-3 minutes, then start the spraying or dusting operation.

Warm Starting

1. Leave the choke fully open.

2. If the engine draws in too much fuel, leave the fuel switch fully close, pull the starter 5-6 times, then start the

engine as shown above.

Starting the Engine

1. Put the dust gate handle to the lowest position before starting the engine, otherwise chemicals will be

propelled when starting engine.

2. Do not stand in front of the nozzle. Even though the dust gate is closed, residual dust in pipe could be blown

out.

Stopping the Engine

1. Put the two control handles to their lowest positions and the engine will stop.

2. Spray over, turn OFF the chemical switch first, then stop the machine.

3. Having finished working, turn OFF the fuel switch.

NOTE: While the engine is running, the hose must be mounted to the machine, otherwise cooling air will be

reduced, and this can damage the engine.

Misting/Dusting Operation

While dusting, regulate the discharge by shifting the dust rod's position in the three holes of the rock-arm. See

figure below.

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MBX450 Backpack Power Sprayer

Safety:

1. It’s preferable to carry out operations during cool weather with little wind. For example, in the early morning

or in the late afternoon, this can reduce the evaporation and drift of chemicals and improve the protective

effect.

2. Operator should move windward.

3. Review area to be cleared. Look for potential hazards such as stones or metal objects. Spectators and

fellow workers must be warned, and children and animals prevented from coming nearer than 15m while the

blower is in use. Do not point the blow pipe at people or animals.

4. If your mouth or eyes are spattered with chemicals, wash them with clean water and seek immediate help

from a medical professional.

5. If the operator has a headache or dizziness, stop working at once and go seek immediate help from a

medical professional.

6. For the operator’s safety, misting/dusting must be carried out strictly according to the instruction of the

chemical manufacturers and agricultural requirements.

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MBX450 Backpack Power Sprayer

Maintenance

Spraying Units

•

Clean out any residual spray mixture or dust in the chemical tank and all other parts after operation with

clean water and dry it.

•

Clean the dust gate and chemical tank inside and outside after dusting.

•

Loosen the chemical tank lid while the machine is free.

•

Let the machine run at a low speed for 2-3 minutes after cleaning.

Fuel System Maintenance

•

Water or dirt in fuel is one of the main causes of the engine trouble, clean the fuel system regularly.

•

Residual fuel remaining in the fuel tank and carburettor for a long time will harden and clog the fuel system,

which can cause the engine to not work properly. Fuel should be discharged if the machine is not used after

one week.

Air Filter and Plug

•

Clean the filter after each operation. Dirt adhering to the filter sponge can reduce the engine power.

•

Dry the filter first before re-installing.

•

Clean stains or carbon from the spark plug and adjust the spark gap to 0.6-0.7mm.

•

Do not use other plug models other than what is provided by the manufacturer. If it is necessary to change,

contact the manufacturer or an authorised service centre.

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MBX450 Backpack Power Sprayer

Troubleshooting

Difficulty starting engine or does not start.

1. Remove the spark plug lead from the spark plug then remove the spark plug from the housing, reinsert the

spark plug into spark plug lead

2. Place the hooked part of spark plug on metal part of engine.

3. With Ignition turned on, pull starter chord, check for spark in between hook and centre of plug.

4. The plug must be touching metal part of engine, do so in darker environment so you can clearly see the

spark.

5. If the unit is not sparking, then a replacement plug will be needed.

TROUBLE CAUSE REMEDY

No spark Spark plug Plug is wet Dry it

Covered with carbon Clean it

The insulation is damaged Replace

Spark gap incorrect Adjust to 0.6-0.7mm

The plug is burned Replace

Normal Compression ratio and fuelling are ok Too much fuel in cylinder Drain

Water or dirt in fuel Replace

Fuelling is ok but compression ratio bad Cylinder and piston ring is worn or damaged Replace them

The plug is loose Tighten it

Carburettor not fuelling No fuel in tank Fuel

Filter gauze clogged Clean

The air hole of the tank is clogged Clean

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MBX450 Backpack Power Sprayer

Engine lacks power.

TROUBLE CAUSE REMEDY

The compression ratio is

fine

The filter plate clogged Clean

Air passes through the connection of

carburettor

Tighten

Engine overheats Stop the engine and cool it

Water in fuel Refill with fresh fuel

The carbon has clogged the muffler Clean

Engine overheats Mixed gas (fuel) is thin Adjust the carburettor.

Cylinder covered with carbon Clean

Oil gone bad

Use 2-T engine oil and adjust the mix

ratio.

No connection with hose Correctly assemble the machine

Engine noisy or knocking Fuel bad Replace

Carbon in cylinder Clean

The running parts are worn and damaged. Check and replace

Engine stops while running.

TROUBLE CAUSE REMEDY

Engine stops suddenly The lead wire of plug is loose Replace firmly

Piston is damaged Change or remedy

Plug is covered with carbon Clean plug

Fuel is used up Fill the fuel tank

The engine stops slowly Carburettor is clogged Clean

The air hole in the tank is clogged Clean

Water in fuel Refill with fresh fuel

Engine is hard to stop.

TROUBLE CAUSE REMEDY

Throttle handle put to the lowest position;

the engine still runs.

The throttle cord is short, or piston of

carburettor blocked.

Adjust the cord or fix/replace the

carburettor.

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MBX450 Backpack Power Sprayer

Dusting

TROUBLE CAUSE REMEDY

No dust discharge or discharge goes out

intermittently

The dust gate cannot be opened.

Adjust the pull rod of the

dust gate

The tank lid not tightened Tighten the tank lid

The dust or granule mix has a foreign body Clean it

The dust or granule has formed a lump Break the lump

Wet dust or granule Dry it

The granules are too big Change the granules

The dust gate does not work properly The dust gate can’t close Clean it

The dust gate is clogged by foreign matter Tighten it

Leakage of dust

The clamp plate of the chemical tank bottom

is loosened

Tighten it

The sealing gasket of the dusting lid is

damaged

Change it with a new one

The O-sealing ring of the elbow is damaged Change it with a new one

The discharge rate is out of control

The control device of dust gate does not

work properly

Fix/Replace it

Spraying

TROUBLE CAUSE REMEDY

No spray mixture jet or jet goes out

intermittently

Nozzle switch or control valve is

clogged

Clean it

Liquid lead pipe is clogged. Clean it

No pressure or the pressure is

low

Tighten the tank lid and screw down the

two wing nuts

Spray mixture leakage

The spraying lid plate fit is

incorrect

Refit it

Every threaded joint loosened Screw it down

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MBX450 Backpack Power Sprayer

Specifications

Engine Type Petrol 2-Stroke

Displacement 42cc

RPM 7,200

Starting System Recoil

Ignition CDI

Fuel Type Regular Unleaded 91+ RON, E10

Fuel-Oil Ratio 50:1

Chemical Tank 13L

Fuel Tank 1L

Note: Assembly Required

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Some experts believe that the incorrect or prolonged use of almost any

product may cause serious injury or death. To help reduce your risk of

serious injury or death, 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.



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.



If this product has been purchased in error when

considering the information presented here, contact the

retailer directly for details of their returns policy, if

required.

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 storage and retrieval system,

without express permission or consent from the publisher.

BAUMR-AG BLWPTLBMAAMB5 Backpack 2-Stroke Petrol Powered Sprayer Fogger Mister Blower

Product's Documents

Product manual

Specifications

BAUMR-AG BLWPTLBMAAMB5 Questions and Answers