Husqvarna DC 900 Dust Collector Instruction Manual

Husqvarna DC 900 Dust Collector

Specifications

• Product Name: DC 900
• Operated By: Electric motors
• Primary Unit: Yes
• Fan Unit: Yes
• Dust Inlets: 2
• Intended Use: Professional operations for indoor and outdoor dry conditions with an applicable Husqvarna shot blaster

FAQ

• Q: Can I use the DC 900 for tasks other than dust collection?
• A: No, the product is designed specifically for dry suction of dust and particles from material removed by a shot blaster. Do not use it for other tasks.
• Q: What should I do if the product shows an incorrect phase indicator?
• A: If the incorrect phase indicator lights up, immediately stop using the product and consult a qualified electrician to resolve the electrical issue.

Introduction

Product Description
The product is a dust collector operated by electric motors. The product has a primary unit and a fan unit. The primary unit and the fan unit are connected by an air hose and a power cord. The product has 2 dust inlets.
Intended use

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 intended for indoor and outdoor use in dry conditions together with an applicable Husqvarna shot blaster. The product is used for dry suction of dust and particles from material removed by the shot blaster. The material can be dangerous and harmful to health.
Do not use the product for other tasks. Only use the product with accessories that are approved by the manufacturer.

Product Overview

1. Vacuum gauge
2. Control valve for the pressure tank
3. Safety valve for the pressure tank
4. Manometer
5. Pulse valve
6. Air compressor
7. Air compressor filters
8. Water separator
9. Type plate
10. Silencer with airflow hatch
11. Fan unit
12. Nozzle for pressurized air
13. Filter door
14. Rotating valves
15. Motor for the rotating valves
16. Adjustment nut for the gland seal
17. Air intake
18. Primary filters
19. Handle for transportation
20. Parking brake
21. Electrical enclosure
22. Operator’s manual

Control panel overview

1. Emergency stop button
2. Air compressor ON/OFF button
3. Fan ON/OFF button
4. Rotating valve ON/OFF button
5. Hour meter
6. Indicator for motor failure
7. Indicator for incorrect phase
8. Power indicator
9. Power outlet for the fan unit

Symbols on the product

• Warning: This product can be dangerous and cause serious injury or death to the operator or others. Be careful and use the product correctly.
• High voltage.
• Lifting point.
• Read the manual carefully and make sure that you understand the instructions before you use the product.
• Use an approved respiratory protection.
• Use approved hearing protection.
• Use approved eye protection.
• Use approved protective gloves.
• Use approved protective boots.
• This product is in compliance with applicable EU directives.

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

Type plate

1. Product number
2. Product weight
3. Rated power
4. Rated voltage
5. Enclosure
6. Rated current
7. Frequency
8. Maximum slope angle
9. Manufacturer
10. Scannable code
11. Production year
12. Model
13. 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 centre or by an approved authority.

Safety

Safety definitions
Warnings, cautions and notes are used to point out especially 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 the operation of the product.
• Do not let a person operate the product unless they read and understand the contents of the operator’s manual.
• 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 made 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.
• 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 the 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 a dust bag and/or filters in place. Replace the dust bag and filter 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. Examples 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 based on 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 noise exposure 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 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 caps 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 a minimum 5 m/17 ft. from the product.
• Make sure that only approved persons are in the work area.
• Keep the 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 vapours 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 dimensions of the mains socket must agree with the amperage for the electrical socket and extension cable of the product.
If the power mains have higher system resistance, a 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.
• 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 agent or similarly qualified persons 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.
• 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.
• 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 purposes only.

Grounded product instructions

WARNING: An 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 outlets that accept 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 do 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 break the main power supply.
To do a check of the emergency stop button
Refer to the Control panel overview on page 4 for information about where the emergency stop button is on your product.

1. Turn the emergency stop button clockwise to make sure that the emergency stop button is disengaged.
2. Start the product. Refer to To Start the Product on page 11.
3. Push the emergency stop button.
4. Make sure that the motor stops.
5. 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.
• 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 the 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 that cannot be satisfactorily cleaned are to be disposed of; such items shall be disposed of in impervious bags per 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. Refer to National regulations.

Operation

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.
• WARNING: 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.

1. Read the operator’s manual carefully and make sure that you understand the instructions.
2. Do the daily maintenance. Refer to the Maintenance schedule.
3. Make sure that the work area is clean and bright.
4. Use personal protective equipment. Refer to Personal protective equipment.
5. Make sure that the product is installed correctly.
6. 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.
7. Engage the parking brake. Refer to To engage and disengage the parking brakes.
8. Connect the air hose and the power cord of the fan unit to the primary unit.
9. Attach the 2 dust extraction hoses. Refer to To attach the dust extraction hoses.
10. Install a BigBag. Put a pallet below the BigBag.
11. Make sure that the power plug is connected correctly.

Dust collector connection, overview

1. Two dust extraction hoses, 5 m/16 ft., Ø150 mm/6 in.
2. Y-connector
3. Dust extraction hose, 2 m/7 ft., Ø150 mm/6 in.
4. 2-way valve for dust collector airflow
5. Dust extraction hose, 15 m/50 ft., Ø150 mm/6 in.

To attach the dust extraction hoses

1. Connect the two 5 m/16 ft. dust extraction hoses to the product with hose clamps and industrial tape.
2. Install the Y-connector, the 2 m/7 ft. dust extraction hose, the 2-way valve and the 15 m/50 ft. dust extraction hose. Refer to Dust collector connection, overview.
3. Put the 15 m/50 ft. dust extraction hose through the support pipe.
4. Attach the 15 m/ 50 ft. dust extraction hose to the shot blaster with hose clamps and industrial tape.

To engage and disengage the parking brakes
The parking brakes must be engaged before you start the product. There are 2 parking brakes on the primary unit and 2 parking brakes on the fan unit.

1. Push the lock lever (A) down to engage the parking brake.
2. To disengage the parking brake, push the lock lever up.

Vacuum gauge
The vacuum gauge shows the condition of the primary filters. If the value on the vacuum gauge is 20 cm H2O or higher, it is necessary to clean the primary filters. Refer to To clean the primary filters on page 16. If the value
on the vacuum gauge is 15 cm H2O or higher after you clean the primary filters, it is necessary to replace the primary filters. Refer to To replace the primary filters on page 16.

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 around 7 bar/100 PSI during operation.

Water separator
The water separator removes dirt, oil and water from the air.
To connect a secondary product

1. Connect the power plug of the secondary product to an applicable power supply.
2. Make sure that the dust extraction hoses between the product and the secondary product are connected with hose clamps and industrial tape.
3. Make sure that the dust extraction hoses are in good condition and can move freely.

To connect the product to a power source

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

To start the product

1. Do all steps in To do before you operate the product.
2. Make sure that the airflow hatch on the fan unit is closed.
3. Make sure that the dust extraction hoses between the product and the secondary product are attached correctly.
4. If a warning indicator on the control panel is on, refer to Troubleshooting.
5. Start the compressor.
6. Start the fan unit and wait until the fan is at full speed.
7. Start the motor for the rotating valves.

To stop the product

1. If you stop the product temporarily, stop only the fan unit.
   Note: When the air compressor is on during a short stop, the product cleans the primary filters.
   WARNING: Make sure that the air intake is closed during the product cleaning cycle. If the air intake is not closed, dust goes into the air. The dust particles are dangerous to your health.

2. If you stop the product for more than 1 hour, stop the fan unit and wait 30 minutes to let the product clean the primary filters. Then do the steps that follow:

• Stop the motor for the rotating valves.
• Stop the air compressor.
• Disconnect the power plug from the power supply.
• Close the airflow hatch on the silencer.

To adjust the suction power
It is necessary to adjust the suction power for example when the primary filters are new

• Move the airflow hatches to adjust the suction power.
• For more suction power, increase the opening.

To discard a full BigBag and install a new BigBag bag

WARNING: Lift the BigBag with caution. Use lifting equipment. A full BigBag can be heavy. Make sure that the straps are closed correctly before you lift the BigBag.
WARNING: Use approved respiratory protection when you replace the BigBag. Refer to Personal protective equipment.

1. Stop the motor for the rotating valves.
2. Remove the funnels of the BigBag from the dust outlets and close them.
3. Remove the pallet and the BigBag from the product.
4. Obey local regulations for disposal of the full BigBag bag.
5. Put a new pallet and new BigBag below the product.
6. Install the funnels of the BigBag (A) on the dust outlets (B).
7. Attach the funnels of the BigBag on the dust outlets with straps (C).
8. Make sure that the BigBag sits evenly on the pallet.
9. Start the motor for the rotating valves.

To drain the water from the pressure tank
Water in the pressurized air collects in the pressure tank. It is necessary to drain the water from the pressure tank daily.

1. Stop the product. Refer to To stop the product.
2. Put a container below the water extraction hose (A) to collect the water.
3. Open the water valve (B).
4. Close the water valve when all the water is drained.

Maintenance

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

• 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.

Maintenance schedule

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

General product maintenance| Daily| Weekly| Monthly| 12 h after servicing| Each 3 months| Yearly
---|---|---|---|---|---|---
Make sure that the power plug and extension cable are in good condition and not dam- aged.|

|  |  |  |  |
Do a check of the electrical components, the cables and the connections for wear and damages.|

|  |  |  |  |
Do a check of the RCD.| |  |  |  |  |
Examine the motors for dirt and damage.| |  |  |  |  |
Empty the drain box.| |  |  |  |  |
Make sure that the dust extraction hoses are not damaged or blocked.| |  |  | |  |
Make sure that the air hose to the fan unit is not damaged or blocked.| *|  | |  |  |
Drain the water from the pressure tank.| X|  |  |  |  |
Make sure that the dust extraction hoses are correctly installed.| X|  |  |  | |
General product maintenance| Daily| Weekly| Monthly| 12 h after servicing| Each 3 months| Yearly
---|---|---|---|---|---|---
Dispose dust from the product.| X|  |  |  |  |
Do a check of all safety devices.| X|  |  |  |  |
Clean the air compressor filters. Replace if it is necessary.|  | X|  |  |  |
Make sure that there is no dust leakage at the rotating valve seals.|  | X|  | |  |
Make sure that the noise level from the bear- ings of the rotating valves is not unusually high.|  |  |

|  |  |
Examine the drive motor of the rotating valves for oil leakage.|  |  | *|  | |
Make sure that the rotating valve blades are not worn and that there is no air leakage. Replace if it is necessary.|  |  |

X

|  |  |
Make sure that nuts and screws are tight.|  |  |  | *|  |
Clean the filter of the water separator. Re- place if it is necessary.|  |  | |  | X|
Replace the air compressor filters.|  |  |  |  | X|
Replace the filter of the water separator.|  |  |  |  |  | X
Clean the top section of the filter unit.|  |  |  |  | O|
Do a complete servicing and cleaning of the product.|  |  |  |  |  | O

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.

To clean the compressor filters

CAUTION: Do not use a high-pressure washer or water to clean the compressor filters. Do not hit the filters with force to clean them. Do not use pressurized air to clean the compressor filters.

1. Remove the 2 caps and the 2 compressor filters (A).
2. Clean the 2 compressor filters with a small dust extractor (B).
3. Install the 2 compressor filters and close the 2 caps.

If you cannot fully clean the compressor filters or if they are damaged, it is necessary to replace them.

To clean the filter in the water separator

CAUTION: Do not use a high-pressure washer to clean the filter. Do not hit the filter with force to clean it.

1. Remove the filter in the water separator. Refer to To replace the filter in the water separator.
2. Clean the filter with warm water.
3. Dry the filter with pressurized air.
4. Install the filter. Refer to To replace the filter in the water separator.

To replace the filter in the water separator

1. Stop the product. Refer to To stop the product.
2. Remove the bowl of the water separator (A).
3. Replace the filter of the water separator (B).
4. Install the bowl of the water separator (A).

To clean the primary filters

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

1. Start the compressor.
2. Start the motor for the rotating valves.
3. 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: Always use personal protective equipment when you replace the primary filters. Refer to Personal protective equipment.

There are 20 primary filters in the product. Replace all filters at the same time.

1. Stop the product. Refer to To stop the product.

2. Remove the 6 locking knobs and the cover of the filter housing.

3. Remove the nut and washer.

4. Remove the lock bar and tilt the filter brackets down.

5. Pull out the 4 primary filters and put them carefully in a plastic bag.
   WARNING: Be careful when you remove the primary filters. The particles in the primary filters are dangerous to your health.

6. Discard the plastic bag correctly. Refer to local regulations.

7. Push 4 new primary filters on the filter brackets in to the filter housing. Install 1 filter at a time. Make sure that you do not put the edges of the primary filters on top of each other.
   WARNING: If the primary filters are not installed correctly, dust can go into the air. The dust particles are dangerous to your health.

8. Install the lock bar.

9. Install the washer and nut. Make sure that there is no space between the washer and the nut.
   CAUTION: The nut and washer must be correctly installed on the screw that holds the lock bar. Dust in the filter housing can cause damage to the threads on the screw.

10. Do the same replacement procedure on the other 4 rows of primary filters.

11. Install the cover of the filter housing and the 6 locking knobs.

To adjust the gland seals of the rotating valves
If there is a leakage of dust at the gland seals, it is necessary to tighten the gland seals. There are gland seals on each side of the 2 rotating valves.

1. Stop the product. Refer to To stop the product

2. Make sure that the bushings (A) are vertical and not at an angle.

3. Tighten the nuts (B) a half turn.
   CAUTION: Do not tighten the nuts too much. The gland seals can become damaged.

4. Make sure that the distance (C) is the same on the left and the right side.

5. Start the product and make sure that there is no leakage of dust at the gland seals.

To replace the rotating valve seals
WARNING: Use approved respiratory protection when you replace the rotating valve seals. Refer to Personal protective equipment

1. Stop the product. Refer to To stop the product.
2. Make sure that the power supply is disconnected.
3. Remove the BigBag and remove the dust outlets.
4. Remove the 4 bolts (A), the clamp strip (B) and the sealing blade (C) of the rotating valve seal.
5. Remove the 2 bolts on the drive motor plate.
6. Turn the drive motor to until you can remove the next set of sealing blades.
7. Do the same procedure until all sealing blades are removed.
8. To install new sealing blades, do these steps for each set of sealing blades:
   • Apply threadlocker on 4 new bolts.
   • Install a new sealing blade, the clamp strip and the 4 bolts.
   • Tighten the 2 bolts in the center first, then tighten the bolts at each end of the clamp strip.
9. Make sure that all sealing blades align with the housing of the rotating valve and that there is a minimum clearance.

Troubleshooting

The filter cleaning system does not op- erate correctly.

| There is no pressure or not sufficient pres- sure in the pressure tank.| Do a check of the pneumatic system.
Clean the compressor filters. Refer to To clean the compressor filters.
There is too much water in the pressure tank.| Remove all water from the pressure tank. Refer to To drain the water from the pressure tank.
The Programmable Logic Controller (PLC) does not operate correctly or the settings are incorrect.| Speak to an approved service agent.
The compressor filters are dirty.| Clean the compressor filters. Refer to To clean the compressor filters.
The BigBag is not attached correctly or has a leak.| Make sure that the BigBag is attached cor- rectly and does not have a hole.
The motors are on but there is no suc- tion.| The primary filters are dirty.| Clean the primary filters. Refer to To clean the primary filters on page 16. Replace the primary filters if it is necessary. Refer to To replace the primary filters.
There is a leakage in the dust collection sys- tem.| Do a check of the seals in the dust collection system for leakages. Replace if it is necessa- ry.
The dust extraction hoses are incorrectly in- stalled or damaged.| Do a check of the dust extraction hoses. Re- place if it is necessary.
The indicator for phase sequence con- trol is on.| The phases are incorrect.| Change the phase sequence at the power supply.
The indicator for mo- tor failure is on.| The motor protection switch releases be- cause of motor overload.| Make sure that you use the correct power supply.
Let an electrician do a check of the fault.
Problem| Cause| Solution
---|---|---
Dust comes out in the air from the air- flow hatch.| The primary filters are damaged or incorrect- ly installed.| Do a check of the primary filters. Replace if it is necessary, refer to To replace the primary filters .

Unusual noises come from the product.

| There are loose screws and nuts.| Tighten all screws and nuts.
There is a fault with the bearings.| Speak to an approved service agent.
The airflow hatch is damaged.| Do a check of the airflow hatch. Replace if it is necessary.

The pressure in the pressure tank is less than 7 bar.

| The filter for the water separator is dirty or damaged.| Clean the filter for the water separator. Re- place if it is necessary.
The compressor filters are dirty or damaged.| Clean the compressor filters. Replace if it is necessary.
There is a leakage in the tubes.| Speak to an approved service agent.
The control valve is damaged.| Speak to an approved service agent.
There is no pressure or not sufficient pres- sure in the pressure tank.| The pneumatic system is damaged.| Do a check of the pneumatic system.

Error codes

The error codes are shown on the display in the electrical enclosure. Refer to Product overview on page 3 for information about where the electrical enclosure is on your product. For error codes that are not shown in the table, write down the error code and the serial number of the product. Stop the product and speak to your local Husqvarna representative.

Note: The codes “nST” and “FSt” are not error codes. If they show on the display, the product operates correctly.

sentative.
oCF| Inertia, too much workload or me- chanical blockage causes overcur- rent.| Make sure that there is no blockage in the fan.

oHF

|

The temperature of the product is too high.

| Make sure that the ambient tempera- ture is not too high.
Do a check of the frequency drive ventilation.
Do a check of the motor load.

oLF

|

The motor current is too high.

| Do a check of the setting of the motor thermal protection. Do a check of the motor load. Wait for the motor to be- come cool before restart.
oPF1| The frequency drive output lost 1 phase.|

Do a check of the connections from the frequency drive to the motor.

oPF2| The motor lost 3 phases.
Error code| Cause| Solution
---|---|---
oSF| The mains voltage is too high.| Do a check of the mains voltage.
There is a disturbance in the mains supply.
SCF1|

There is a short circuit or grounding at the drive output.

| Do a check of the cables between the drive and the motor. Do a check of the ground connections and insu- lation of the motor.
SCF5

PHF

|

A phase is missing.

| Do a check of the power supply and the fuses.
Use a 3-phase mains supply.

uSF

| The mains voltage is too low.|

Do a check of the mains voltage.

The mains voltage is not constant.

Transportation, storage and disposal

Transportation

WARNING: Be careful during transportation. The product is heavy and can cause injury or damage if it falls or moves during transportation.

CAUTION: Do not tow the product behind a vehicle.

• Make sure that the electrical cable and dust extraction hose are disconnected before transportation. Close the air intake when the dust extraction hose is disconnected.
• Remove the collected dust before transportation.
• The wheels let you move the product shorter distances. For longer distances, lock the wheels and lift the product to move it or put the product on a vehicle.
• Put some type of protection on the product during transportation. The protection keeps rain and snow away from the product.
• Make sure that there is no pressure in the pressure tank before transportation.

To move the product

WARNING: Wait until all moving parts are stationary before you move the product.

WARNING: Use protective boots with steel toe-cap and non-slip sole.

• Push or pull the product by the handle.

To move the product up and down a ramp

WARNING: Be very careful when you move the product up and down ramps. The product is heavy and there is a risk of injury if the product falls or moves too quickly.

WARNING: For ramps with a steep slope, always use a winch. Do not walk or stay below or near the product.

• To move the product down a ramp, operate the product forward slowly.
• To move the product up a ramp, operate the product rearward slowly.
• Do not turn the product to the left or to the right more than 45° on a ramp.

To lift the primary unit

• WARNING: Make sure that the lifting equipment has the correct specification to lift the product safely. The type plate on the product shows the product weight.
• WARNING: Do not walk or stay below or near a lifted product. Keep bystanders away from the work area.
• WARNING: Do not lift a damaged product. Make sure that the lifting eyes are correctly installed and not damaged.
• WARNING: Do not lift the fan unit. Refer to To attach the product to a transportation vehicle for information on how to transport the fan unit.

1. Remove the BigBag from the product.
2. Disconnect the hose between the fan unit and the primary unit.
3. Lift the drawbar from the tow bar on the fan unit.
4. Tilt the drawbar until it is in a vertical position and attach it to the primary unit with straps.
5. Put straps through the 8 lifting eyes on the main unit and use lifting equipment to lift it.
6. Lift the primary unit slowly.

To attach the product to a transportation vehicle
Use the lifting eyes to attach the product to the transportation vehicle.

• To attach the primary unit to the transportation vehicle, do the steps that follow:
  • Attach the tie-down straps in the lifting eyes.
  • Attach and tighten the tie-down straps to the transportation vehicle.
• To attach the fan unit to the transportation vehicle, do the steps that follow:
  • Use a ramp to put the fan unit on a pallet.
  • Use tie-down straps to attach the fan unit to the pallet and the dust extractor hose to the fan unit (A).
• Use wooden blocks to lock the wheels (B).
• Use tie-down straps to attach the pallet with the fan unit to the transportation vehicle.

To attach the product to a transportation vehicle
Use the lifting eyes to attach the product to the transportation vehicle.

1. Attach the tie-down straps in the lifting eyes.
2. Attach and tighten the tie-down straps to the transportation vehicle.

Storage

CAUTION: Do not put the product in storage outdoors. Always keep the product indoors.

• Keep the product in a dry and frost-free area.
• Clean the product and do a complete servicing before you put the product in storage.
• Keep the product in a locked area to prevent access for children or persons that are not approved.
• Remove dust from the dust collector.

Disposal of the product

• Obey the local recycling requirements and applicable regulations.
• When the product no longer is used, send it to a Husqvarna dealer or discard it at a recycling location.

Technical data

Note: If your product requires an electrical specification that is not in the table, speak to a Husqvarna service agent for more information.

Noise emissions

Noise and vibration declaration statement
These declared values were obtained by laboratory type testing in accordance with the stated directive or standards and are suitable for comparison with the declared values of other products tested in accordance with the same directive or standards. These declared values are not suitable for use in risk assessments and values measured in individual work places may be higher. The actual exposure values and risk of harm experienced by an individual user are unique and depend upon the way the user works, in what material the product is used, as well as upon the exposure time and the physical condition of the user, and the condition of the product.

1. Sound pressure level determined according to EN ISO 11202. Measured on concrete surface. Uncertainty Kpa 2.5 dB.
2. Sound power level determined according to EN ISO 3747. Measured on concrete surface. Uncertainty Kwa 2.5 dB.

Extension cables

Product dimensions, primary unit

• The cross sections must be re-calculated when other type or dimension pre-fuse are used than is given.

Product dimensions, fan unit

Accessories

Declaration of Conformity

EU Declaration of Conformity
We, Husqvarna AB, SE-561 82 Huskvarna, Sweden, tel:+46- 36-146500, declare on our sole responsibility that the product:

complies fully with the following EU directives and regulations:

• and that the following standards and/or technical specifications are applied;
• EN ISO 12100:2010, EN 60204-1:2006
• Soest, Netherlands, 2023-09-29

www.husqvarnaconstruction.com.

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