Husqvarna DC 350 EX Dust Collectors Machine Instruction Manual

: June 1, 2024
: Husqvarna

Table of Contents

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Husqvarna DC 350 EX Dust Collectors Machine

Specifications

Model: DC 350 EX
Electrical Components: ATEX approved
Power Source: Electric motor
Intended Use: Dry suction for indoor and outdoor use in dry conditions
Maximum Power Consumption: As specified on the power outlet

Product Description The DC 350 EX is a dust collector equipped with ATEX- approved electrical components. It operates using an electric motor and collects dust particles from the air through the dust extraction hose into the dust inlet. Intended UseWarning: Only use the power outlet on the product for purposes specified in the instructions.
Warning: Do not collect ignition sources, hot a rticles, liquids, explosive material, and unstable or pyrophoric particles.
The product is designed for professional operations and is intended for dry suction in both indoor and outdoor settings under dry conditions. It is specifically used to collect and remove dry material from machines and devices that may pose health risks.
You can connect an electric power tool to the power outlet, ensuring that the power consumption (W) of the tool does not exceed the maximum power consumption specified on the power outlet.

Owner responsibility

WARNING: Processing of concrete and stone by methods such as cutting, grinding or drilling, especially during dry operation, generates dust that comes from the material being processed, which frequently contains silica. Silica is a basic component of sand, quartz, brick clay, granite and numerous other minerals and rocks. Exposure to excessive amount of such dust can cause:
Respiratory disease (affecting your ability to breathe), including chronic bronchitis, silicosis and pulmonary fibrosis from exposure to silica. These diseases may be fatal; Skin irritation and rash.
Cancer according to NTP and IARC */National Toxicology Program, International Agency for Research on Cancer.

Take precautionary steps:
Avoid inhalation of and skin contact with dust, mist and fumes.
Wear and ensure that all bystanders wear appropriate respiratory protection such as dust masks designed to filter out microscopic particles. (See OSHA 29 CFR Part 1926.1153)
To minimize dust emissions use an appropriate dust collector.

It is the owner’s/employer’s responsibility that the operator has sufficient knowledge about how to use the product safely. Supervisors and operators must have read and understood the Operator’s Manual. They must be aware of:

The product’s safety instructions.

The product’s range of applications and limitations.
How the product is to be used and maintained.

National/Local regulations could restrict the use of this product. Find out what regulations are applicable where you work before you start using the product.

Product description
The product is a dust collector with ATEX approved electrical components. The product is operated by an electric motor. Dust goes through the dust extraction hose into the dust inlet. The product collects the dust particles from the air.

Intended use

WARNING: Only use the power outlet on the product for purposes specified in the instructions.
WARNING: Do not collect ignition sources, hot particles, liquids, explosive material and unstable or pyrophoric particles.

The product is for professional operations only. The product is used for dry suction, intended for indoor and outdoor use in dry conditions. The product is intended to collect and remove dry material from machines and devices. The material can be dangerous and harmful to health.
You can connect an electric power tool to the power outlet. Make sure that the power consumption (W) of the power tool is not more than the maximum power consumption (W) identified on the power outlet.
Do not use the product for other tasks. Only use the product with accessories that are approved by the manufacturer.

Product overview

$Husqvarna-DC-350-EX-Dust-Collectors-Machine- $2$$

Cable support
Front cover
ATEX power connector socket with switch
Silencer
Control panel. Refer to Control panel overview on page 3.
Dust container
Dust container handle
Filter cover
Vacuum gauge
Connection for dust collector hose adapter
Pressure tank manometer
Side cover
Nozzle for pressurized air
Dust collector hose adapter
Operator’s manual

Control panel overview
All electrical components on the product are in the control panel. The control panel is ATEX approved.

Indicator for incorrect phase
Indicator for air compressor and fan
Indicator for motor failure
Emergency stop button
ON/OFF switch and phase converter
Air compressor and fan OFF button
Air compressor and fan ON button

Symbols on the product

$Husqvarna-DC-350-EX-Dust-Collectors-Machine- $4$$

Note: Other symbols/decals on the product refer to special certification requirements for some markets.

Type plate

Product number
Product weight
Rated power
Rated voltage
Enclosure
Rated current
Frequency
Maximum slope angle
Manufacturer
Scannable code
Production year
Model
Serial number

Product damage
We are not responsible for damages to our product if:

the product is incorrectly repaired.
the product is repaired with parts that are not from the manufacturer or not approved by the manufacturer.
the product has an accessory that is not from the manufacturer or not approved by the manufacturer.
the product is not repaired at an approved service center or by an approved authority.

Safety

Safety definitions
Warnings, cautions and notes are used to point out specially important parts of the manual.

WARNING : Used if there is a risk of injury or death for the operator or bystanders if the instructions in the manual are not obeyed.
CAUTION : Used if there is a risk of damage to the product, other materials or the adjacent area if the instructions in the manual are not obeyed.
Note: Used to give more information that is necessary in a given situation.

General safety instructions

WARNING: Read the warning instructions that follow before you use the product.

This product is a dangerous tool if you are not careful or if you use the product incorrectly. This product can cause serious injury or death to the operator or others. Before you use the product, you must read and understand the contents of this operator’s manual.
This product is not intended for use by persons, including children, with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
Save all warnings and instructions.
Comply with all applicable laws and regulations.
The operator and the employer of the operator must know and prevent the risks during operation of the product.
Do not operate the product unless you receive training before use. Make sure that all operators receive training.
Do not let a child operate the product.
Only let approved persons operate the product.
The operator is responsible for accidents that occur to other persons or their property.
Do not use the product if you are tired, ill, or under the influence of alcohol, drugs or medicine.
Always be careful and use your common sense.
Keep the product clean. Make sure that you can clearly read signs and decals.
Do not use the product if it is damaged or does not operate correctly.
Do not do modifications to this product.
Do not operate the product if it is possible that other persons have done modifications to the product.

Safety instructions for operation

WARNING: Read the warning instructions that follow before you use the product.

Use personal protective equipment. Refer to Personal protective equipment on page 6.
Do not operate the product without all protective covers installed.
Make sure that you know how to stop the motor quickly in an emergency.
Before you go away from the product, stop the motor and disconnect the power cord. Make sure that there is no risk of accidental start.
Keep hair, loose clothing and all body parts away from openings and moving parts.
Make sure that you are in a safe and stable position during operation.
Make sure that there are no loose bolts and nuts.
Always use approved accessories. Speak to your Husqvarna dealer for more information.
Make sure that the dust extraction hose is correctly attached to the product with hose clamps and industrial tape.
Make sure that the parking brakes are engaged and that you are in a safe and stable position during operation.
Regularly do a check of the contents of the dust storage system at the bottom of the product. Always wear a dust mask when you empty the dust storage system. Comply with the local regulations when you discard the dust.
Do not point the dust extraction hose at persons.
Make sure that there is no grease or oil on the handles.
Do not use the product to collect water or liquids.
Do not use the product to collect hot, burning or smoking objects.
Do not use the product to collect flammable or combustible liquids.
Do not use the product in collect dangerous dust.
Immediately stop the product if dust comes out the filter unit. The primary filters are damaged or not correctly installed.
Do not use without dust bag and/or filters in place. Replace the dust bag and filters system as given in this manual.

Dust safety

WARNING: Read the warning instructions that follow before you use the product.

Operation of the product can cause dust in the air. Dust can cause serious injury and permanent health problems. Silica dust is regulated as harmful by several authorities. These are examples of such health problems:

The fatal lung diseases chronic bronchitis, silicosis and pulmonary fibrosis
Cancer
Birth defects
Skin inflammation

Use correct equipment to decrease the quantity of dust and fumes in the air and to decrease dust on work equipment, surfaces, clothing and body parts. Example of controls are dust collection systems. Decrease dust at the source where possible. Make sure that the equipment is correctly installed and used and that regular maintenance is done.

Use approved respiratory protection. Make sure that the respiratory protection is applicable for the dangerous materials in the work area.
Make sure that the airflow is sufficient in the work area.
It is the responsibility of the user to analyse the surface to be treated. The surface may not contain any substances which could pose a fire-, explosion or health risk when treated. The user should make a risk assessment on the basis of the information obtained about the surface to be treated and take proper precautions for the work to be performed.

Noise safety
WARNING: Read the warning instructions that follow before you use the product.

High noise levels and long-term exposure to noise can cause noise-induced hearing loss.
To keep the noise level to a minimum, do maintenance on and operate the product as given in the operator’s manual.
Use approved hearing protection while you operate the product.
Listen for warning signals and voices when you use hearing protection. Remove the hearing protection when the product is stopped, unless hearing protection is necessary for the noise level in the work area.
Personal protective equipment

WARNING: Read the warning instructions that follow before you use the product.
Always use approved personal protective equipment when you operate the product. Personal protective equipment cannot fully prevent injury but it decreases the degree of injury if an accident does occur. Let your dealer help you select the correct personal protective equipment and when to use them.

Regularly do a check of the condition of the personal protective equipment.
Use approved hearing protection.
Use approved respiratory protection.
Use approved eye protection with side protection.
Use protective gloves.
Use boots with steel toe-cap and non-slip sole.
Use approved work clothing or equivalent close-fitting clothing that has long sleeves and long legs.

Work area safety
WARNING: Read the warning instructions that follow before you use the product.

Do not use the product in fog, rain, strong winds, cold weather, risk of lightning or other bad weather conditions.
Keep children, bystanders and animals away from the work area and at a distance of minimum 5 m/17 ft. from the product.
Make sure that only approved persons are in the work area.
Keep work area clean and well lit. Cluttered or dark areas invite accidents.
Make sure that rough surfaces, for example welded seams or floor joints, do not stop the product.
Make sure that there are no cables or hoses in the operation direction of the product.
Make sure that there is sufficient airflow in the work area.
Make sure that there are no flammable liquids in the work area.
This appliance is not suitable for use in classified (hazardous) locations, to pick up dusts or liquids of high explosion risk, nor mixtures of combustible dust with liquids.
Do not pick up anything that is burning or smoking, such as cigarettes, matches, or hot ashes.
Do not use to pick up flammable liquids, such as gasoline, or use in areas where flammable vapors may be present.

Electrical safety
WARNING: There is always a risk of shocks from electrical products. Do not use the product in bad weather conditions. Do not touch lightning conductors and metal objects. Always use the product as given in this operator’s manual to prevent injury.
WARNING: Always use a power supply with RCD (residual-current device). An RCD decreases the risk of electrical shock.

WARNING: High voltage. There are unprotected parts in the power unit. Always disconnect the power plug before you open the door to the electrical box.
WARNING: Only use the socket outlets on the product for purposes specified in the instructions.
CAUTION: The power supply from the product or generator must be sufficient and constant to make sure that the motor operates without problems. Incorrect voltage causes the power consumption and the temperature of the motor to increase until the safety circuit releases. The dimension of the power cord must agree with national and local regulations. The dimension of the mains socket must agree with the amperage for the electrical socket and extension cable of the product.
If the power mains has higher system resistance, short voltage drop can occur when the product is started. This can influence the operation of other products, for example flicker on the lights.

The power plug must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce risk of electric shock.
Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.
Make sure that the power, fuse and mains voltage are the same as the voltage shown on the rating plate of the product.
Always stop the product before you disconnect the power plug.
Make sure that the ON/OFF switch is in OFF position before the product is connected to the power supply.
Always disconnect the power plug during a long product stop.
Do not use the product if the supply cord or power plug is damaged. If the supply cord is damaged, it must be replaced by the manufacturer, its service agentor similarly qualified persons in order to avoid a hazard. A damaged power cord can cause serious injury and death.
Use the power cord correctly. Do not use the power cord to move, pull or disconnect the product. Pull the power plug to disconnect the power cord. Do not pull the power cord.
Only operate the product on dry surfaces.
Keep the product away from rain. Water that goes into the product increases the risk of electrical shock.
Always disconnect the power cord before you connect or disconnect the connection for the motor cable and the electrical enclosure.
In order to avoid a hazard due to inadvertent resetting of the thermal cut-out, this appliance must not be supplied through an external switching device, such as a timer, or connected to a circuit that is regularly switched on and off by the utility.
Make sure that the power supply for the product is supplied by separate transformers that are used for industrial purpose only.

Grounded product instructions

WARNING: Incorrect connection can result in electrical shock. Speak to an approved electrician if you are not sure if your mains outlet is correctly grounded.
Do not do modifications to the power plug from its factory specification. If the power plug or power cord is damaged or must be replaced, speak to your Husqvarna service agent. Obey local regulations and laws.
If you do not fully understand the instructions about the grounded product, speak to an approved electrician.

Use only grounded outdoor extension cables with grounding plugs and grounding outlet that accepts the product power plug.
The product has a grounded power cord and power plug. Always connect the product to a grounded mains outlet. This decreases the risk of electrical shock.
Do not use electrical adapters with the product.

Extension cables

Use only approved extension cables with applicable properties.
The rated value on the extension cable must be the same or higher than given on the rating plate of the product.
Use grounded extension cables.
When you operate the product outdoors, use an extension cable that is applicable for outdoor operation. This decreases the risk of electrical shock.
Keep the connection to the extension cable dry and off the ground.
Keep the extension cable away from heat, oil, sharp edges or moving parts. A damaged cable increases the risk of electrical shock.
Make sure that the extension cable is in good condition and not damaged.
Do not use the extension cable while it is wound up. This can cause the extension cable to become too hot.
Make sure that the extension cable is out of the way and the product during operation. This prevents damage to the extension cable.

Safety devices on the product
WARNING: Read the warning instructions that follow before you use the product.

Do not use the product if the safety devices are damaged or does not operate correctly.
Do a check of the safety devices daily. If your safety devices are damaged or does not operate correctly, speak to your Husqvarna service agent.
Do not make modifications on safety devices

Emergency stop button
The emergency stop button is used to quickly stop the product and breaks the mains power supply.

To do a check of the emergency stop button
Refer to Control panel overview on page 3 for information about where the emergency stop button is on your product.

Turn the emergency stop button clockwise to make sure that the emergency stop button is disengaged.
Start the product. Refer to To start the product on page 10.
Push the emergency stop button.
Make sure that the motor stops.
Turn the emergency stop button clockwise to disengage.
Motor protection switch

The product has multiple motor protection switches to prevent motor overload. Let an electrician do a check of the motor protection switches if there is a motor overload.

Safety instructions for maintenance
WARNING: Read the warning instructions that follow before you do maintenance on the product.
Product related accidents can occur during the troubleshooting, servicing and maintenance as the operator must be in the risk area of the product. The operator must be careful, make a plan and prepare the work to prevent accidents.
If the maintenance is not done correctly and regularly, the risk of injury and damage to the product increases.
Use personal protective equipment. Refer to Personal protective equipment on page 6. Disconnect the product from the power source before you do the maintenance.
Do not make modifications to the product. Modifications that are not approved by the manufacturer can cause serious injury or death.

Always use original accessories and spare parts. Accessories and spare parts that are not approved by the manufacturer, can cause serious injury or death.
Replace damaged, worn or broken parts.
Only do the maintenance as given in this operator’s manual. Let an approved service agent do all other servicing.
If the replacement of the supply cord is necessary, this has to be done by the manufacturer or his agent in order to avoid a safety hazard.
Only let an approved electrician do all checks of the electric components.
Be careful when you handle the filters. If you damage the filters, there is a risk of dust dispersion.
The manufacturer, or an instructed person, must do a technical inspection at least annually. The technical inspection includes an inspection of the filters for damage, air tightness of the product and correct function of the control mechanism. In addition the filtration efficiency of the product must be tested at least annually, or more frequently as may be specified by national requirements. If the test is not conducted the main filters must be replaced by new ones.
When carrying out service or repair operations, all contaminated items which cannot be satisfactorily cleaned are to be disposed of; such items shall be disposed of in impervious bags in accordance with any current regulation for the disposal of such waste.
All the machine parts shall be regarded as contaminated when removed from the working area and appropriate action taken to prevent dust dispersal.
The outside of the machine should be decontaminated by vacuum cleaning methods and wiped clean or treated with sealant before being taken out of a working area.
For user servicing, the machine shall be dismantled, cleaned and serviced, as far as is reasonably practicable, without causing risk to the maintenance staff and others. Suitable precautions include decontamination before dismantling, provision for local filtered exhaust ventilation where the machine is dismantled, cleaning of the maintenance area and suitable personal protection.
It is necessary to provide for an adequate AIR CHANGE RATE ACR in the room if the exhaust air is returned to the room. Refere to National regulations.

Introduction

WARNING: Before you operate the product, you must read and understand the safety chapter.

To do before you operate the product

WARNING: To prevent the risk of injury, make sure that you attach the product plug fully to the extension cable. Do regular checks of the connection while you operate the product to make sure that it is fully attached. Do not use an extension cable that makes a loose connection.
Note: Read the operator’s manual of the attached equipment carefully. If specified requirements or settings are given for the secondary product, make sure that you obey these.

Read the operator’s manual carefully and make sure that you understand the instructions.
Do the daily maintenance. Refer to Maintenance schedule on page 11.
Make sure that the work area is clean and bright.
Use personal protective equipment. Refer to Personal protective equipment on page 6.
Make sure that the product is installed correctly.
Make sure that the frequency and voltage shown on the type plate agrees with the power supply voltage. This is also applicable for the extension cables.
Make sure that the power plug is connected correctly.

Operation

To attach the dust collector hose

Install the dust collector hose adapter on the air intake.
Attach the dust collector hose with hose clamps and industrial tape.
- For hoses with 150 mm/6 in. diameter, attach the dust collector hose around the dust collector hose adapter.
- For hoses with 130 mm/5 in. diameter, attach the dust collector hose adapter around the dust collector hose.

To engage and disengage the parking brake
The parking brake must be engaged before you start the product.

To disengage the parking brake, push the lock lever up.
To engage the parking brake, push the lock lever down.

Water separator
The water separator removes dirt, oil and water from the air. Moist and dirty air decrease the life of the primary filters. Empty the water separator daily or when the water level is 10 mm below the level indicator mark. Refer to To drain the water from the water separator on page 19.

Vacuum gauge
The vacuum gauge shows the condition of the primary filters. If the value on the vacuum gauge is 20 cmH2O or higher, it is necessary to clean the primary filters.

Pressure tank manometer
The pressure tank manometer shows the pressure in the pressure tank. The air in the pressure tank cleans the primary filters. The pressure is approximately 7 bar/100 PSI during operation.

To connect a secondary product

Connect the power plug of the secondary product to an applicable power supply or to the ATEX power connector socket on the product.
CAUTION: Make sure that the power plug of the secondary product is fully connected to the ATEX power socket.
Make sure that the dust extraction hose between the product and the secondary product is connected with hose clamps and industrial tape.
Make sure that the dust extraction hose is in good condition and can move freely.

To connect the product to a power source

Connect the power plug of the product to a grounded mains outlet or other power source.
Make sure that the mains voltage agrees with the type plate on the product.

To start the product

Connect the dust extraction hose between the product and the secondary product. Refer to To attach the dust collector hose on page 9 and To connect a secondary product on page 10.
Connect the product to a power supply. Refer to To connect the product to a power source on page 10.
Set the ON/OFF switch to the “1” position (A).
Look at the indicator for incorrect phase (B). If the indicator is on, do the steps that follow to change the phases:
- Set the ON/OFF switch to the “0” position (C).
- Set the ON/OFF switch to the “2” position (D).
- Make sure that the indicator for incorrect phase is off.
Push the ON button for the air compressor and the fan (E).

To stop the product

If you stop the product temporarily, close the air intake valve in the dust collector hose adapter.Note: When the air compressor and the fan are on during a short stop, the product cleans the primary filters.
WARNING: Always close the air intake valve in the dust collector hose adapter when you stop the product temporarily. If the air intake is not closed, dust goes into the air. The dust particles are dangerous to your health.
If you stop the product for more than 1 hour, do the steps that follow:
- Close the air intake valve.
- After 5 minutes, push the OFF button for the air compressor and the fan (A).
- Set the ON/OFF switch to the position “0” (B).
- Disconnect the power plug from the power supply.

To empty the dust container

WARNING: Be careful when you empty the dust container, a full dust container can be heavy.
WARNING: Use approved respiratory protection when you empty the dust container. Refer to Personal protective equipment on page 6.

Turn the handles to release the lockpins.
Remove the dust container.
Obey local regulations for disposal of the contents of the dust container.
Install the dust container in the opposite sequence. Make sure that the dust container is correctly installed.

WARNING: If the dust container is not correctly installed, dust can go into the air.

Maintenance

WARNING: Read and understand the safety chapter before you do maintenance on the product.

Maintenance schedule

= General maintenance done by the operator. The instructions are not given in this operator’s manual.
X = The instructions are given in this operator’s manual.

O = The instructions are not given in this operator’s manual. Let an approved service agent do the maintenance.

General product maintenance| Daily| Weekly| Each 3 months| Yearly| Each 2 years
---|---|---|---|---|---
Make sure that the power plug and exten- sion cable are in good condition and not damaged.| | | | |
Do a check of the electrical components, the cables, and the connections for wear and damages.| | | | |
Examine the electric motor for dirt and damage.| | | | |
Make sure that the dust extraction hose is not damaged or blocked.| | | | |
Empty the dust container.| X| | | |
Make sure that the dust extraction hose is correctly installed.| X| | | |
Dispose dust from the product.| X| | | |
Do a check of all safety devices.| X| | | |
Drain water from the water separator.| X| | | |
Drain water from the pressure tank.| X| | | |
Do a check of the oil level in the air com- pressor.1| | X| | |
Clean the air compressor filter.| | | X| |
Clean the filter of the water separator. Re- place if it is necessary.| | | X| |
Do a check of the V-belt tension.| | | X| |
Clean the top section of the filter unit.| | | O| |
Replace the air compressor filter.| | | | X|
Do a complete servicing and cleaning of the product.| | | | O|
Replace the oil in the air compressor.2| | | | | X

To clean the product

Always clean all the equipment after use. Use a vacuum cleaner.
Do not use a high-pressure washer to clean the product.
Keep the air openings clean and clear to make sure that the product always has sufficiently cool temperature.

The first 300 hours of operation it is necessary to do a check of the oil level in the air compressor each 50 hours.
Replace the oil in the air compressor after the first 300 hours of operation, then each 2 years.

To clean the air compressor filter

CAUTION: Do not use a high-pressure washer or water to clean the air compressor filter.

Clean the front of the filter housing with pressurized air.
Open the filter housing.
Remove the air compressor filter (A).
Clean the air compressor filter with pressurized air.
Clean the 2 halves (B) of the filter housing with alint-free cloth.

Replace the air compressor filter if you cannot fully clean it or if it is damaged.

To clean the filter in the water separator

Stop the product. Refer to To stop the product on page 10.
Remove the 6 nuts, the 6 washers and the left side cover.
Push down the lock button on the water separator, turn the filter bowl counterclockwise and pull it down.
Remove the filter screw and the filter.
Clean the filter with warm water.
Dry the filter with pressurized air.
Install the filter and the filter screw.
Install the filter bowl.
Turn the filter bowl clockwise until you hear a click.

Replace the filter in the water separator if you cannot fully clean it or if it is damaged.

To clean the primary filters

WARNING: Always close off the air intake when the pulse cleaning cycle runs. If the air intake is not closed, dust can come in to the air. The dust particles are dangerous to your health.

Start the product. Refer to To start the product on page 10.
Stop the fan. Refer to To stop the product on page 10.
Keep the air compressor on for 30 minutes while the product is not in operation. Pressurized air goes through the primary filters and cleans them.

To replace the primary filters

WARNING: Be careful when you remove the primary filters. The particles in the primary filters are dangerous
to your health. Always use personal protective equipment when you replace the primary filters. Refer to Personal protective equipment on page 6.

CAUTION: Replace all 6 primary filters at the same time.

Stop the product. Refer to To stop the product on page 10.
Remove the dust container. Refer to To empty the dust container on page 11.
Remove the nut, the knob and the rubber seal.
Remove the filter and put it in a plastic bag.
Discard the plastic bag with the primary filter correctly. Refer to local regulations.
Install the new filter, the rubber seal, the knob and the nut.
WARNING: If the primary filters are not installed correctly, dust can come in to the air. The dust particles are dangerous to your health.
Do the same replacement procedure on the other 5primary filters.

To do a check of the tension in the V-belts
The product has 2 V-belts: 1 for the motor and 1 for the air compressor.