MBX450 - Leaf blower Baumr-AG - Free user manual and instructions

Product Type	Knapsack Leaf Blower / Mist Blower / Duster
Engine Type	Petrol 2-Stroke
Displacement	42 cc
Maximum RPM	7,200
Starting System	Recoil
Ignition	CDI
Fuel Type	Regular Unleaded 91+ RON, E10
Fuel-Oil Ratio	50:1 (gasoline to 2-stroke oil)
Fuel Tank Capacity	1 L
Chemical Tank Capacity	13 L
Functions	Leaf blowing, mist spraying, dusting
Assembly	Required (pipe, trigger, chemical tube assembly)
Safety Features	Grounding chain for anti-static, engine stop switch, fuel cap seal
Maintenance	Clean air filter, spark plug gap 0.6–0.7 mm, drain fuel if not used for a week
Included Accessories	Blower pipe, chemical tube, dust tank, grounding chain, tools
Warranty	Void if engine oil not added before first use

Frequently Asked Questions - MBX450 Baumr-AG

What type of fuel does the Baumr-AG MBX450 require?

The MBX450 uses a mixture of regular unleaded gasoline (91+ RON, E10) and 2-stroke oil at a ratio of 50:1.

How do I start the engine cold?

Press the primer bulb until fuel fills it, set the switch to START, close the choke, pull the starter a few times, then open choke once engine starts. Let it warm up at low speed for 2-3 minutes.

Is assembly required before first use?

Yes. You need to attach the blower pipe, chemical tube, trigger assembly, and dust tank depending on configuration. See the manual for step-by-step instructions.

What safety precautions should I take when using the leaf blower?

Always wear protective gear (goggles, gloves, ear protection). Do not operate indoors due to carbon monoxide risk. Keep bystanders and animals at least 15 m away. Never point the nozzle at people.

How do I maintain the spark plug?

Clean carbon deposits and set the electrode gap to 0.6–0.7 mm. Use only manufacturer-recommended spark plugs.

Can I use the MBX450 for spraying chemicals?

Yes, it functions as a mist blower. Use the provided chemical tank and follow mixing guidelines. Always shut off the engine before adding chemicals.

Why does my engine have trouble starting?

Common causes: wet or carbon-covered spark plug, incorrect gap, water or dirt in fuel, clogged air filter, or too much fuel in cylinder. Check and remedy accordingly.

How do I convert from spraying to dusting mode?

Remove the chemical tank lid and tube, attach the dust tank, reversing the ball valve orientation. Install the grounding chain to prevent static discharge.

What is the correct oil ratio and what happens if I use the wrong one?

The ratio is 50:1 (2% oil). Incorrect ratio can cause engine damage, overheating, or poor performance.

How should I store the machine when not in use?

Drain fuel if not used for more than a week. Clean the chemical tank. Store in a cool, dry place away from sunlight and flammable materials. Let the engine cool completely.

USER MANUAL MBX450 Baumr-AG

Exterior view of a modern red and white industrial machine labeled 'Bäumr-AG' with no visible text or symbols on the device body.

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

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.

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.

You CAN be KILLED or SERIOUSLY INJURED if you do not follow instructions.

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 overreach. 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.

You CAN be INJURED if you do not follow instructions or equipment damage may occur.

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.

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.

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.

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.

! DANGER !

Using an engine or wood/charcoal/gas fuelled appliance indoors CAN KILL YOU IN MINUTES. Engine exhaust and wood/charcoal/gas fumes contain carbon monoxide. This is a poison you cannot see or smell.

NEVER use inside a building, home, garage, boat, caravan or tent EVEN IF doors and windows are open.

Only use OUTSIDE and far away from windows, doors, and vents.

Avoid other hazards - READ MANUAL BEFORE USE.

GENERAL:

• Do not operate in a hazardous location. Such areas include where there is a risk of explosion of petrol fumes, leaking gas or explosive dusts.
• Do not operate in a confined area where exhaust gases or wood/charcoal/gas fumes could reach dangerous concentrations.

PRODUCTS FEATURING AN ENGINE

• Follow all warnings in the section titled "GENERAL".
• Explosion hazard - never smoke while refuelling.
  • Take care not to spill fuel. When refuelling the engine, ensure that the engine has been allowed to cool. Prevent spilling of fuel as this may also ignite with a hot engine.
• Never refuel while engine is running.

GENERATORS

• Follow all warnings in the sections titled "GENERAL" and "PRODUCTS FEATURING AN ENGINE".
• The output of this generator is potentially lethal. The generator should not be connected to a fixed electrical installation except by an appropriately licensed person.
• Not weatherproof – protect your machine. This machine is not weatherproof and should not be exposed to direct sunlight, high ambient temperature, damp conditions, wet conditions or high humidity conditions.

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 HazardFlammable liquids, gases, or substances etc may present.Avoid ignition sources and open flames. Danger of fire.	Read User ManualRead and fully understand product safety warnings, operation, procedures etc before using the product.	Use Hand ProtectionWear appropriate hand protection and take due care as the product or use of the product may present hand hazards.	Exhaust FumesCarbon-Monoxide HazardDo not use the product in confined areas or without adequate ventilation. Carbon-monoxide poisoning can be fatal.
Electrocution / Electrical Shock HazardHigh 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 HazardUsing 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 HazardCombustible liquids, gases, or substances etc may be present.Avoid ignition sources and open flames. Danger of explosion.	Cutting / Amputation HazardThe 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 HazardThe 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 OnlyThe product must be operated by a single person only. More than one person operating the product may introduce additional hazards.	Use Face ProtectionWear appropriate full-face protection and take due care as the product or use of the product may present face and eye hazards.	Use Foot ProtectionWear appropriate foot protection and take due care as the product or use of the product may present foot hazards.
Use Eye / Ear / Head ProtectionWear 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 HazardDo not run on or near the product as doing so may present a fall hazard.	Diving HazardDo not dive into the product as doing so may present a neck / head injury hazard.	Adult Supervision RequiredAlways supervise children and other users of a product to prevent drowning or injury.
Skin Penetration / Puncture HazardThe 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 HazardBe aware that the product may produce high temperatures and hot surfaces that can cause burn injuries.	Flying Debris HazardBe aware that the product or use of the product may present hazards produced by flying debris. Wear appropriate clothing and protective devices.	Moving Parts HazardBe 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.
Carbon-Monoxide HazardDo not use the product in confined areas or without adequate ventilation. Carbon-monoxide poisoning can be fatal.	Pull HazardBe 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 HazardBe 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" WarningDo NOT attempt "slam dunk" manoeuvres as this may result in severe injury due to falling, product breakage or collapse etc.
Electrocution / Electrical Shock Hazard - OutdoorHigh 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 - DisconnectHigh 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 HazardHigh 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" HazardHigh level of "kick-back" hazard that can cause the machine to suddenly rotate towards operator. Kick-back injury can be fatal.
Winch Operator Position HazardDo NOT stand between winch and load. Do NOT use winch to move people.	Winch Lift HazardDo NOT LIFT load vertically. Use machine to PULL only.	Cable HazardEnsure that load bearing cable is not kinked or knotted.	Winch Cable HazardEnsure that there is a minimum number of cable coils on winching mechanism.
Winch Hook HazardCarry hook to load – do NOT throw or run.	Flash / Blinding HazardWear appropriate eye protection for welding. Direct exposure to weld arcs may cause permanent eye injury.	Laser HazardLaser may be in use – do NOT look directly at laser or allow others to.

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

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

Spare parts available for purchase, scan QR code below:

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

Three mechanical components with arrows pointing to features on a textured surface (no text or symbols)

Figure 2

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

Figure 3

Sprayer Configuration

Close-up of hands adjusting a black spiral mechanical component with a metal clamp (no visible text or symbols)

Step 1: Use a flathead or a Phillips head screwdriver to loosen the pipe clamp.

Close-up of a red and black mechanical device with a coiled black hose, resting on a textured gray carpet (no visible text or symbols)

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

Close-up of a hand adjusting a white plastic mechanical component with a yellow arrow pointing to it, next to a black cylindrical spring (no text or symbols visible)

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.

Close-up of a black automotive air vent component being held, placed on a textured surface (no visible text or symbols)

Step 4: Push the trigger assembly over the piece of straight pipe.

Close-up of hands adjusting a black bicycle seatbelt with a small metallic screw (no visible text or symbols)

Step 5: Secure the trigger assembly with a 9mm spanner or socket.

Black handheld device with red handle and yellow arrow pointing to a yellow rectangular object on dark textured surface (no text or symbols)

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

Close-up of hands holding a black cylindrical object with a yellow arrow pointing to it, placed on a textured gray surface (no text or symbols visible)

Step 7: Push the blower nozzle onto the curved pipe.

Close-up of a hand using a red spray gun to press down a black industrial component, with hoses and wiring visible (no text or symbols)

Step 8: Push the chemical tube onto the tank's outlet.

Close-up of hands adjusting a black cylindrical component with a white plastic clip attached, no visible text or symbols

Step 9: Push the other end of the chemical tube onto the ball valve.

Close-up of hands adjusting a black industrial device with tubing and a transparent tube (no visible text or symbols)

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

Close-up of hands adjusting a black cylindrical object with a small metallic knob, placed on a textured gray surface (no text or symbols visible)

Step 11: Push the other end of the chemical tube onto the blower nozzle.

White and red Baser AG sprayer machine with black hose and hose assembly (no visible text or symbols)

ASSEMBLY IS COMPLETE

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

Dusting Configuration

Close-up of a hand holding a white plastic component with a red background (no visible text or symbols)

Step 1: Remove the tank outlet valve from the chemical tank.

Close-up of a hand adjusting a white PVC pipe fitting inside a mechanical assembly (no text or symbols visible)

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

Close-up of hands adjusting a black mechanical component with a red handle (no visible text or symbols)

Close-up of a hand adjusting a red plastic component with black plastic cap (no visible text or symbols)

Close-up of hands using a tool to adjust a mechanical component with a white plastic tube (no visible text or symbols)

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.

Close-up of a car's electrical plug with metal wire, no visible text or symbols

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

Close-up of a red and black mechanical component with attached tubing (no visible text or symbols)

Close-up of a hand holding a black plastic mechanical component with a metallic ring attached (no visible text or symbols)

Close-up of a hand holding a black plastic mechanical component, with red vehicle and tubing in the background (no visible text or symbols)

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

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.

Close-up of a hand holding a white plastic bag with a transparent lid, showing no visible text or symbols.

Close-up of a white plastic cylindrical object with a hollow interior, no visible text or symbols.

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

Close-up of a hand adjusting a white plastic hose on a textured gray surface (no text or symbols visible)

Close-up of a transparent medical tube with connectors and a red connector, placed on a textured gray surface (no text or symbols visible)

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

Close-up of a black cylindrical object with red measurement markings, being cut by a ruler (no visible text or symbols)

Close-up of a hand holding a black mechanical component with a metallic hook attached (no visible text or symbols)

Close-up of a black plastic object with a coiled wire and a crack on a white surface (no text or symbols visible)

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.

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.

- 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.

Close-up of a hand holding a mechanical component with no visible text or symbols

Figure 6

1. Put the switch ON the starting position.

Figure 7

1. Put the choker on the full position.

Figure 8

1. Pull the starter for a few times and return it slowly. Do not leave the handle to return freely to avoid damaging the starter.
2. Close the choke and pull starter handle until the engine starts.
3. After starting the engine, open choke fully.
4. 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.

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.

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.

Close-up of a metallic screw or connector with threaded body and mounting bracket (no visible text or symbols)

0.6-0.7mm

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

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.

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

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

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.

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