DRESTER DIX22 X-Series Automatic Gun Washer Instruction Manual

Drester X-Series
DIX22
Operation manual

PURPOSE OF THE MACHINE

The unit is intended for cleaning of air-driven spray-guns using either thinner-based solvents or water-based solvents. The unit has two separate areas for cleaning:

1. An automatic washer (item 1 illustration 1), intended for cleaning of spray-guns and paint-cups.
2. A sink (item 2 illustration 1), intended for manual cleaning of spray-guns and paint-cups as well as other tools used in connection with vehicle paint-jobs like: filler scrapers, paint brushes and such.

All other use of the unit are not allowed like:

• Emptying excess paint into the unit
• Cleaning of electric chargeable items
• Collecting of various waste
• Cleaning of textile materials
• Storing of items
• Cleaning of hands or other parts of the human body
• Cleaning of any items for food or drinks

ASSEMBLY

• First of all, check if the machine has been damaged during the transport. Remove the packaging and check again that the machine has not been damaged during the transport. If so, report this immediately to the transport company.
• Fit the flange for the extraction (item 3 illustration 1) with the 4 screws included (see detail illustration 2)
• Fit the glass window into place (item 4 illustration 1) (see detail illustration 3)
• The air-line on the left side of the unit (item 5 illustration 1) is during transport placed inside the unit. Take it out, and fasten it with the magnet in a convenient place on the left side. This air-line is intended to blow out the spray-gun after the cleaning procedure.
• The air-gun on the right side of the unit (item 6 illustration 1) is during transport placed inside the unit. Take it out, and fasten it with the magnet in a convenient place on the right side. This air-gun is intended to blow the spray-gun dry after the cleaning procedure.

PLACING THE UNIT

The DRESTER DIX22 is equipment Category 2 (ref. ATEX-directive 2014/34/EU) and may therefore be placed in locations classified as Zone 1 (ref. ATEX-directive 1999/92 EC).
If the DRESTER DIX22 is installed in locations classified as Zone 2 or in unclassified locations, the following is valid provided that the ventilation of the unit is installed as described further down in this manual:
The space within 1 m of the DRESTER DIX22 is to be classified as Zone 2, and the inside of the ducting as Zone 1 (see illustration 17).
Within these areas, all equipment such as electrical items must be approved for the Zones described. Equipment that generates naked flames or sparks (e.g. welding or grinding equipment) may not be used in this area. Smoking is not permitted. If in any doubt, please contact the local fire service authorities for advice. This manual is part of the unit and must be available at all times.

INSTALLATION

Compressed air
The unit must be connected to compressed air of 7-12 bar (110-180 psi). When in use, the unit consumes 150 litres/ min (6 cfm) of air (450 litres/min (16 cfm) if connected to a DRESTER AIRVENT 11660).
The air is to be connected to the moisture trap inside the unit (illustration 4). To access this point, remove the front panel (item 7 illustration 1) by lifting it up-and-out. The air-line can be led into this point via the slots on the side of the unit, or through the open back of the unit. In either case, make sure that the air-line do not bend the hoses or in any other way harm the pneumatic system of the unit.
To prevent pressure drops, the air line and couplings must be adequately dimensioned. The regulator on the unit is pre-set to 6.5 bar (100 psi). This is the optimal setting and must not be altered.
The compressed air supplied to the unit must be clean and dry. If it is not first led through a water trap and filter, it may cause damage to the pneumatic components of the unit, which will invalidate any warranty claims.
Fit a connector to the air-line on the left side of the unit (item 5 illustration 1). This air-line is intended to blow out the spraygun after the cleaning procedure.
Grounding the unit
Make sure that the unit is properly grounded by using the grounding cable (illustration 5).
Ventilation
There are three different options for the unit’s ventilation. For all three options, it must be ensured that the speed of the air flow at the opening of the hood complies with local laws and regulations.
The ventilation must be connected in such a way as to  ensure the grounding of all parts.
Option 1: Connect the flange of the hood (item 3 illustration 1) directly to a metal ducting, which is in turn connected to a ventilation system approved for Zone 1.
Option 2: Fit an air–driven AIRVENT 11660 to the hood and connect this in turn to a metal ducting. Connect this ducting to a ventilation system approved for Zone 1.
Option 3: Connect the hood to an ATEX approved electric ventilator via a metal ducting. The exhaust from the ventilator must be led outdoors.

PERMITTED SOLVENTS

The unit can be used with solvents and solvent mixtures intended for spray-gun cleaning, such as acetone, toluene, isobutanol, xylene that are listed as Group IIA according to IEC 79-20 (EN 60079-20).
The unit can also be used with water or water based solvents.
All solvents must have a pH value between 4 and 10. Be sure not to mix water- based solvents with thinner-based solvents.
It is important that all users are informed of what solvent is being used, at all times.
Never use any solvent if it is not provided with an MSDS (Material Safety Data Sheet). Read the MSDS carefully, and follow all the instructions and procedures provided in the MSDS. If unsure, or if more information is needed concerning the solvent,  please contact your solvent supplier.
Do not add other chemicals to the solvent including, but not limited to, kerosene, gasoline, detergents, fuel oil or chlorinated solvents.

PERMITTED SOLVENT DRUMS

The DRESTER DIX22 can be used with different types of drums, but they must comply with the following:

• The drums must fit into the unit
• The drums must be leak-free.
• The drums must be made of a conductive material.
• Check for local regulations concerning max allowed volume for keeping solvent in the unit

Solvent drums are not provided by Hedson Technologies, thus Hedson Technologies does not take any responsibility for the drums. Follow the solvent supplier’s instructions carefully.

COLLECTING TRAY

The unit must be installed in such a way as to prevent accidental leakage of solvent from spreading into a drain water system, thus representing a hazard to the environment. This can be done by:

• installing the unit in a location where floor and walls can hold any accidental drum leakage, or
• equipping the unit with a collecting tray beneath the solvent drums that is large enough to hold the volume of at least one leaking drum.

PREPARATIONS FOR USE

Solvent drums
Remove the front panel (item 7 illustration 1) by lifting it up-and-out.
Two drums are needed for each side of the unit, one drum that is empty, and one drum full of solvent. Both drums on each side must be of the same size, and they must meet the requirements described under chapter PERMITTED SOLVENT DRUMS. Both drums must be clean on the inside and they must not contain any solids or other objects that could be sucked into the pumps when running.
Drum plugs
There are several types of solvent drums on the market, each with different diameter of the opening. With the unit, cardboard boxes with a selection of tapered plugs are supplied (illustration 6). Select the plugs that fit well into the opening of the drums, and fit them onto the drum adaptors of the hoses (illustration 7).
Solvent fill-up
Follow the following procedure for the left side of the unit: Use one empty drum and another drum of the same size full of clean solvent.
Place the empty drum to the left underneath the unit (item 1 illustration 8). Insert the group of hoses containing the drain hose from the sink into this drum (item 2 illustration 8). Make sure that the hoses are properly led well down into the drum, and that the opening is well sealed by the tapered plug.
Take the second drum, the one full of solvent, and pour half of its contents directly into the gun cleaner’s sink (item 1 illustration 1).
The solvent that is poured in will drain into the drum underneath the gun cleaner.
Make sure to have the ventilation running during this procedure.
Place the second drum, now half full, on the floor on the righthand side of the first drum (item 3 illustration 8). Insert the 6mm hose into this drum (item 4 illustration 8).
Make sure that the hose is properly led into the drum all the way down to the bottom, and that the opening is well sealed by the tapered plug.
The solvent system is now filled-up on the left side of the unit.
Both drums should be half full. The left-hand drum, contains the solvent that will be recirculating for the automatic wash cycle, and the right-hand drum contains clean solvent for rinsing.
The contents of the right drum will gradually be used up and transferred to the left drum.
Now repeat the solvent fill-up procedure for the right side of the unit.
If only recirculating solvent will be used in the machine, put all the hoses for each washing compartment into the same drum (Illustration 9).
Operating instructions
Operating instructions should be formulated on the basis of this manual and translated into the language spoken by the employees. It should always be available close to the machine.
To avoid confusion, the employees must be informed about the solvent currently being used in the machine.

OPERATING INSTRUCTIONS

Empty the spray-gun of any residual paint into a separate spills-dish.
Automatic (Left-hand side):
Open the main valve for compressed air (item 8 illustration 1).
Open the lid, and place the spray-gun inside (illustration 10, 11 and 12). Be sure to fit the trigger clip (Illustration 13) and connect the air line (item 1 illustration 10). Gravity-fed sprayguns also require an extension pipe (item 2 illustration 10).
For the gravity-fed spray-gun, you always get the best cleaning result if the spray-gun is dismantled and placed in the washing compartment as seen in illustration 10.
The air line (item 1 illustration 10) prevents solvent from entering the spray-gun’s air channels during washing.
This air line should be equipped with a conical plug that fits into the spraygun’s air inlet (illustration 14).
Close the lid, and start the automatic pre-wash cycle by turning the Timer knob (item 9 illustration 1).
The spray-gun will now be automatically cleaned for 1 to approx. 4 minutes with circulating solvent.
When the cleaning procedure is completed, the lid can be opened and the spray- gun taken out. It can now be manually rinsed with clean solvent if required. As long as the valve (item 10 illustration 1) is turned on, a jet of clean solvent will be sprayed from the nozzle under the lid.
Finally, it is possible to blow out the spray-gun. Connect the spray-gun to the air line on the left side of the machine (item 5 illustration 1), and blow out the spray-gun through the funnel under the lid. By using this funnel, you prevent the fumes from spreading within the premises.
Close the lid after cleaning.
Manual (Right-hand side):
Open the main valve for compressed air (item 8 illustration 1).
First clean the spray-gun with the cleaning brush (item 1 illustration 16). As long as the valve (item 11 illustration 1) is turned on, recirculating solvent will be pumped through the cleaning brush.
Next, use the hand-held spray nozzle (item 2 illustration 16) to rinse with clean solvent if required. As long as the valve (item 12 illustration 1) is turned on, a jet of clean solvent will be sprayed from the hand-held nozzle.
Finally, all of the spray-gun’s channels can be blown out with the air-gun on the right side of the unit (item 6 illustration 1), which can also be used to dry the spray-gun.

SAFETY VALVE

The unit is equipped with a safety valve that will interrupt the automatic pre-wash cycle if the lid is opened before the cycle is completed. To resume the interrupted cycle, the lid and the unit’s main valve (item 8 illustration

1. must be closed. When you hear the safety valve ‘click’, the main valve can be opened again.
   To speed this process up, open the valve to activate the spray nozzle (item 10 illustration 1) and close it when you hear the safety valve ‘click’.

SERVICE

Weekly:

• Loosen the centre bolt holding the spray-cradle and remove it.
• Clean the washing compartment’s working platform (perforated pressing) and the bottom of the washing compartment.
• Reassemble the parts.
• Clean the manual washing compartment and working platform.

Monthly:

• Remove the five nozzles automatic washer and clean them with clean solvent. (illustration 15).

When changing drums:

• Check and if necessary clean the strainers on the suction hoses for circulating solvent.

SAFETY INFORMATION

Hazards may arise from improper use of the DRESTER DIX22.
Hazards may also arise from improper choice/handling of drums or solvent. In order to maintain the high safety standard of the unit, it is important that these instructions are followed.

• Do not operate the unit until you have read and fully understood this entire User’s Manual.
• The unit should be isntalled as described in the instructions– The unit should be used as described in the instructions.
• The unit should be maintained as described in the instructions– Only original spare parts may be used.
• This User’s Manual must be available and in legible condition in close proximity to the unit. Every user shall know where to find the User’s Manual.
• Operating instructions should be formulated on the basis of this Users Manual, and translated into the language spoken by the employees.
• Do not modify or in any way alter the unit.
• Do not operate the unit unless it is properly vented. Do not operate the unit if the extraction of vapors is insufficient.
• Avoid contact with liquid and vapor. Refer to the solvents’ MSDS (Material Safety Data Sheet).
• Wear chemical goggles or similar, to protect your eyes. Wear chemical-resistant gloves to prevent skin-contact. Wear chemical-resistant clothing to protect against spills or splash.
• Personnel suffering from respiratory problems or allergies to solvents used, must not operate the machine.
• Clean up spills immediately. Solvent vapours are heavier than air and can spread a long way. They may also collect in pits or other low areas.
• Do not smoke, eat or drink while close to the unit.
• The unit is equipped with a safety valve that will interrupt the automatic wash cycle if the lid is opened before the wash cycle is completed.
• A fire extinguisher must always be kept nearby when working with flammable solvents. Do not use water.
• Spray guns or any other paint equipment items cleaned in the unit must be suitable for cleaning in a Zone 1 area (ref. Category 2 according to EN 13463-1/2001). If unsure,please contact the spray gun manufacturer.
• The unit must be properly grounded using the attached grounding cable. If plastic drums are used, the openings should be wiped off with a damp cloth, to avoid static electricity, before inserting or removing any hoses or other equipment.

TECHNICAL DATA

Manufacturer| HEDSON TECHNOLOGIES AB
Hammarvägen 4  SE-232 37 Arlöv
Sweden
Tel.: +46-40- 53 42 00
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Type of machine:| DRESTER X-SERIES DIX22
Permitted solvents|  See section “Permitted Solvents”
Max solvent volume of machine| Max solvent volume of machine

(Check for local regulations concerning max allowed volume for keeping solvent in the unit)

180 l/min (6 cfm) 2 pumps
460 l/min (17 cfm) including
AIRVENT 11660 in operation
Ventilation capacity| 240-600 m3 /h (141-353 cfm) -> 0,2-0,5 m/s (0,7-1,6 fps)
Pump capacity| 10 l/min
Solvent pressure| 2 bar (30 psi)
Weight| 95 kg (209 lb)
Overall dimensions| Height: 1510 mm (59,5”)
Width: 1185 mm (46,7”)
Max depth: 650 mm (25,5”)
Depth at the floor: 610 mm (24”)
Extractor diameter| 125 mm (5”)
Sound pressure level| <70 dB(A)

Hedson Technologies AB
Hammarvägen 4
232 37 Arlöv, Sweden
Phone + 46 40 534200
Fax + 46 40 432901
www.hedson.se
230505 rev3 2022-02-01

Documents / Resources

| DRESTER DIX22 X-Series Automatic Gun Washer [pdf] Instruction Manual
DIX22 X-Series Automatic Gun Washer, DIX22 X-Series, Automatic Gun Washer, Gun Washer
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