Wagner Prospray 20 User Manual
PROSPRAY 20
OWNER‘S MANUAL • INSTRUCCIONES DE USO •
MANUAL DEL PROPRIETÁRIO
GB
E
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wagner-group.com
0419 • Form No. 0532487B / Doc. # 11291027
ORIGINAL OPERATING MANUAL
Airless units develop extremely high spraying pressures.
1
ProSpray 20
Warning!
Attention: Danger of injury by injection!
Never put your ngers, hands or any other parts of the body into
the spray jet!
Never point the spray gun at yourself, other persons or animals.
Never use the spray gun without safety guard.
Do not treat a spraying injury as a harmless cut. In case of injury
to the skin through coating materials or solvents, consult a doctor
immediately for quick and expert treatment. Inform the doctor
about the coating material or solvent used.
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3
The operating instructions state that the following points must
always be observed before starting up:
1. Faulty units must not be used.
2. Secure Wagner spray gun using the trigger lock on the trigger.
3. Ensure that the unit is properly earthed.
4. Check allowable operating pressure of high-pressure hose and spray gun.
5. Check all connections for leaks.
The instructions regarding regular cleaning and maintenance of
the unit must be strictly observed.
Before any work is done on the unit or for every break in work the
following rules must be observed:
1. Release the pressure from spray gun and hose.
2. Secure the Wagner spray gun using the trigger lock on the trigger.
3. Switch o unit.
Be safety conscious!
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CONTENTS
ProSpray 20
1 SAFETY REGULATIONS FOR AIRLESS
SPRAYING ______________________________ 4
1.1 Explanation of symbols used _____________________4
1.2 Electric safety _________________________________6
1.3 Electrostatic charging (formation of sparks or ames) 6
2 GENERAL VIEW OF APPLICATION __________ 7
2.1 Application ___________________________________ 7
2.2 Coating materials ______________________________ 7
3 DESCRIPTION OF UNIT ___________________ 8
3.1 Airless process ________________________________8
3.2 Functioning of the unit _________________________8
3.3 Legend for explanatory diagram ProSpray 20 _______9
3.4 Explanatory diagram ProSpray 20 _________________ 9
3.5 Technical data _______________________________10
3.6 Transportation in vehicle _______________________ 10
4 STARTING OPERATION __________________ 10
4.1 High-pressure hose, spray gun and separating oil ___ 10
4.2 Connection to the mains network _______________11
4.3 Cleaning preserving agent when
starting-up of operation initially _________________11
4.4 Taking the unit into operation with coating material 11
5 SPRAYING TECHNIQUE __________________ 12
6 HANDLING THE HIGHPRESSURE HOSE ____ 13
7 INTERRUPTION OF WORK ________________ 13
8 CLEANING THE UNIT SHUTTING DOWN __14
8.1 Cleaning unit from outside _____________________14
8.2 Suction lter _________________________________ 14
8.3 Cleaning the high-pressure lter ________________15
8.4 Cleaning Airless spray gun _____________________15
9 REMEDY IN CASE OF FAULTS _____________ 16
10 SERVICING _____________________________ 17
10.1 General servicing _____________________________17
10.2 High-pressure hose ___________________________17
11 REPAIRS AT THE UNIT ___________________ 17
11.1 Relief valve __________________________________17
11.2 Inlet and outlet valve __________________________ 18
11.3 Packings ____________________________________18
11.4 Replacing the motor __________________________20
11.5 Carbon brushes in motor _______________________ 20
11.6 Replacing the gears ___________________________21
11.7 Replacing the transducer ______________________21
11.8 ProSpray 20 connection diagram ________________22
12 APPENDIX _____________________________23
12.1 Selection of tip _______________________________23
12.2 Servicing and cleaning of Airless hard-metal tips ___23
12.3 Spray gun accessories _________________________23
12.4 Airless tip table ____________________________ 24/25
12.5 2Speed Tip table _____________________________26
12.6 Nozzle cases _________________________________27
12.7 TempSpray __________________________________28
12.8 HEA nozzles for low-mist spraying at low pressure __29
SPARE PARTS LISTS __________________________86
Accessories for ProSpray 20 _______________________ 86/87
Spare parts list for main assembly __________________ 88/89
Spare parts list for uid section ____________________ 90/91
Spare parts list for drive assembly _____________________ 92
Spare parts list for motor assembly ____________________ 93
Spare parts list of stand _____________________________94
Spare parts list for suction system _____________________ 95
IMPORTANT NOTES ON PRODUCT LIABILITY ___98
3+2 YEARS GUARANTEE FOR PROFESSIONAL
FINISHING _________________________________ 98
WAGNERSERVICE COMPANIES __________103/104
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SAFETY PRECAUTIONS
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Attention: Danger of injury by injection! A high
or solvents, consult a doctor immediately for
quick and expert treatment. Inform the doctor
1 SAFETY REGULATIONS FOR AIRLESS
SPRAYING
ProSpray 20
1.1
This manual contains information that must be read and
understood before using the equipment. When you come to
an area that has one of the following symbols, pay particular
attention and make certain to heed the safeguard.
EXPLANATION OF SYMBOLS USED
This symbol indicates a potential hazard
that may cause serious injury or loss of life.
Important safety information will follow.
This symbol indicates a potential hazard
to you or to the equipment. Important
tention
information that tells how to prevent
damage to the equipment or how to avoid
causes of minor injuries will follow.
Danger of skin injection
Danger of re from solvent and paint fumes
Danger of explosion from solvent, paint
fumes and incompatible materials
Danger of injury from inhalation of harmful
vapors
Notes give important information which
should be given special attention.
HAZARD: INJECTION INJURY
pressure stream produced by this equipment can
pierce the skin and underlying tissues, leading to
serious injury and possible amputation.
Do not treat a spraying injury as a harmless cut. In
case of injury to the skin through coating materials
about the coating material or solvent used.
PREVENTION:
• NEVER aim the gun at any part of the body.
• NEVER allow any part of the body to touch the uid stream.
DO NOT allow body to touch a leak in the uid hose.
• NEVER put your hand in front of the gun. Gloves will not
provide protection against an injection injury.
• ALWAYS lock the gun trigger, shut the uid pump o and
release all pressure before servicing, cleaning the tip guard,
changing tips, or leaving unattended. Pressure will not be
released by turning o the engine. The PRIME/SPRAY valve
or pressure bleed valve must be turned to their appropriate
positions to relieve system pressure.
• ALWAYS keep tip guard in place while spraying. The tip
guard provides some protection but is mainly a warning
device.
• ALWAYS remove the spray tip before ushing or cleaning
the system.
• NEVER use a spray gun without a working trigger lock and
trigger guard in place.
• All accessories must be rated at or above the maximum
operating pressure range of the sprayer. This includes
spray tips, guns, extensions, and hose.
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SAFETY PRECAUTIONS
The paint hose can develop leaks from wear,
Flammable vapors, such as solvent and paint
ProSpray 20
HAZARD: HIGH PRESSURE HOSE
kinking and abuse. A leak can inject material into
the skin. Inspect the hose before each use.
PREVENTION:
• Avoid sharp bending or kinking of the high-pressure hose.
The smallest bending radius amounts to about 20 cm.
• Do not drive over the high-pressure hose. Protect against
sharp objects and edges.
• Replace any damaged high-pressure hose immediately.
• Never repair defective high-pressure hoses yourself!
• Electrostatic charging of spray guns and the high-pressure
hose is discharged through the high-pressure hose. For this
reason the electric resistance between the connections of
the high-pressure hose must be equal to or lower than
1MΩ.
• For reasons of function, safety and durability use only
original Wagner high-pressure hoses.
• Before each use, check all hoses for cuts, leaks, abrasion
or bulging of cover. Check for damage or movement of
couplings. Immediately replace the hose if any of these
conditions exist. Never repair a paint hose. Replace it with
another earthed high-pressure hose.
• Make sure power cord, air hose and spray hoses are routed
in such a manner to minimize slip, trip and fall hazard.
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HAZARD: EXPLOSION OR FIRE
vapors, in work area can ignite or explode.
PREVENTION:
• Do not use materials with a ashpoint below 38° C (100° F).
Flashpoint is the temperature at which a uid can produce
enough vapors to ignite.
• Do not use the unit in work places which are covered by
the explosion protection regulations.
• Provide extensive exhaust and fresh air introduction to
keep the air within the spray area free from accumulation
of ammable vapors.
• Avoid all ignition sources such as static electricity sparks,
electrical appliances, ames, pilot lights, hot objects, and
sparks from connecting and disconnecting power cords or
working light switches.
• Do not smoke in spray area.
• Place sprayer sucient distance from the spray object
in a well ventilated area (add more hose if necessary).
Flammable vapors are often heavier than air. Floor area
must be extremely well ventilated. The pump contains
arcing parts that emit sparks and can ignite vapors.
• The equipment and objects in and around the spray area
must be properly grounded to prevent static sparks.
• Use only conductive or earthed high pressure uid hose.
Gun must be earthed through hose connections.
• Power cord must be connected to a grounded circuit
(electric units only).
• Always ush unit into separate metal container, at low
pump pressure, with spray tip removed. Hold gun rmly
against side of container to ground container and prevent
static sparks.
• Follow material and solvent manufacturer’s warnings and
instructions. Be familiar with the coating material’s SDS
sheet and technical information to ensure safe use.
• Use lowest possible pressure to ush equipment.
• When cleaning the unit with solvents, the solvent should
never be sprayed or pumped back into a container with
a small opening (bunghole). An explosive gas/air mixture
can arise. The container must be earthed.
• Do not use a paint or solvent containing halogenated
hydrocarbons. Such as chlorine, bleach, mildewcide,
methylene chloride and trichloroethane. They are not
compatible with aluminum. Contact the coating supplier
about compatibility of material with aluminum.
SAFETY PRECAUTIONS
Paints, solvents, and other materials can be
harmful if inhaled or come in contact with body.
Vapors can cause severe nausea, fainting, or
HAZARD: HAZARDOUS VAPORS
poisoning.
PREVENTION:
• Wear respiratory protection when spraying. Read all
instructions supplied with the mask to be sure it will
provide the necessary protection.
• All local regulations regarding protection against
hazardous vapors must be observed.
• Wear protective eyewear.
• Protective clothing, gloves and possibly skin protection
cream are necessary for the protection of the skin. Observe
the regulations of the manufacturer concerning coating
materials, solvents and cleaning agents in preparation,
processing and cleaning units.
HAZARD: GENERAL
This product can cause severe injury or property
damage.
PREVENTION:
• Follow all appropriate local, state, and national codes
governing ventilation, re prevention, and operation.
• Pulling the trigger causes a recoil force to the hand that is
holding the spray gun. The recoil force of the spray gun is
particularly powerful when the tip has been removed and
a high pressure has been set on the airless pump. When
cleaning without a spray tip, set the pressure control knob
to the lowest pressure.
• Use only manufacturer authorized parts. User assumes all
risks and liabilities when using parts that do not meet the
minimum specications and safety devices of the pump
manufacturer.
• ALWAYS follow the material manufacturer’s instructions
for safe handling of paint and solvents.
• Clean up all material and solvent spills immediately to
prevent slip hazard.
• Wear ear protection. This unit can produce noise levels
above 85 dB(A).
• Never leave this equipment unattended. Keep away from
children or anyone not familiar with the operation of airless
equipment.
• Do not spray on windy days.
• The device and all related liquids (i.e. hydraulic oil) must be
disposed of in an environmentally friendly way.
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ProSpray 20
1.2 ELECTRIC SAFETY
Electric models must be earthed. In the event of an electrical
short circuit, earthing reduces the risk of electric shock by
providing an escape wire for the electric current. This product
is equipped with a cord having an earthing wire with an
appropriate earthing plug. Connection to the mains only
through a special feed point, e.g. through an error protection
insallation with INF < 30 mA.
DANGER — Work or repairs at the electrical
equipment may only be carried out by a skilled
electrician. No liability is assumed for incorrect
installation. Switch the unit o. Before all repair
work, unplug the power plug from the outlet.
Danger of short-circuits caused by water ingressing into the
electrical equipment. Never spray down the unit with highpressure or high-pressure steam cleaners.
WORK OR REPAIRS AT THE ELECTRICAL EQUIPMENT:
These may only be carried out by a skilled electrician. No liability
is assumed for incorrect installation.
1.3 ELECTROSTATIC CHARGING FORMATION OF
SPARKS OR FLAMES
Electrostatic charging of the unit may occur
during spraying due to the ow speed of the
coating material. These can cause sparks and
ames upon discharge. The unit must therefore
always be earthed via the electrical system. The
unit must be connected to an appropriatelygrounded safety outlet.
An electrostatic charging of spray guns and the high-pressure
hose is discharged through the high-pressure hose. For this
reason the electric resistance between the connections of the
high-pressure hose must be equal to or lower than 1 MΩ.
GENERAL VIEW OF APPLICATION
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ProSpray 20
2 GENERAL VIEW OF APPLICATION
2.1
The unit performance is conceived so that its use is possible on
building sites for small- to middle-area dispersion work.
EXAMPLES OF OBJECTS TO BE SPRAYED
The sprayer is able for all common varnishing jobs like doors,
door frames, balustrades, furniture, woodencladding, fences,
radiators (heating) and steel parts.
APPLICATION
2.2 COATING MATERIALS
PROCESSIBLE COATING MATERIALS
Pay attention to the Airless quality of the coating
materials to be processed.
Dilutable lacquers and paints or those containing solvents, twocomponent coating materials, dispersions, latex paints, release
agents, oils, undercoats, primers, and llers.
No other materials should be used for spraying without
Wagner’s approval.
FILTERING
Despite suction lter and insertion lter in the spray gun,
ltering of the coating material is generally advisable.
Stir coating material before commencement of work.
Attention: Make sure, when stirring up with
motor-driven agitators that no air bubbles are
stirred in. Air bubbles disturb when spraying and
can, in fact, lead to interruption of operation.
VISCOSITY
With this unit it is possible to process highly viscous coating
materials of up to around 20.000 MPa·s.
If highly viscous coating materials cannot be taken in by suction,
they must be diluted in accordance with the manufacturer’s
instructions.
TWOCOMPONENT COATING MATERIAL
The appropriate processing time must be adhered to exactly.
Within this time rinse through and clean the unit meticulously
with the appropriate cleaning materials.
COATING MATERIALS WITH SHARPEDGED ADDITIONAL
MATERIALS
These have a strong wear and tear eect on valves, highpressure hose, spray gun and tip. The durability of these parts
cane be reduced appreciably through this.
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DESCRIPTION OF UNIT
3 DESCRIPTION OF UNIT
ProSpray 20
3.1
The main areas of application are thick layers of highly viscous
coating material for large areas and a high consumption of
material.
A piston pump takes in the coating material by suction and
conveys it to the tip. Pressed through the tip at a pressure of
up to a maximum of 214 bar (21.4 MPa), the coating material
is atomised. This high pressure has the eect of micro ne
atomisation of the coating material.
As no air is used in this process, it is described as an AIRLESS
process.
This method of spraying has the advantages of nest
atomisation, cloudless operation and a smooth, bubble-free
surface. As well as these, the advantages of the speed of work
and convenience must be mentioned.
AIRLESS PROCESS
3.2 FUNCTIONING OF THE UNIT
In the following there is a short description of the technical
construction for better understanding of the function.
Wagner ProSpray 20 units are electrically driven high-pressure
spraying units.
A gear unit transfers the driving force to a crankshaft. The
crankshaft moves the pistons of the material feed pump up and
down.
The inlet valve is opened automatically by the upwards
movement of the piston. The outlet valve is opened when the
piston moves downward.
The coating material ows under high pressure through the
high-pressure hose to the spray gun. When the coating material
exits from the tip it atomizes.
The pressure control knob controls the volume and the
operating pressure of the coating material.
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DESCRIPTION OF UNIT
3
12
10
11
4
5
6
7
7*
PRIME
SPRAY
k
p
ProSpray 20
3.3 LEGEND FOR EXPLANATORY DIAGRAM
PROSPRAY 20
1. Spray gun
2. High-pressure hose
3. Return hose
4. Suction hose
5. Frame
6. Drip cup
3.4 EXPLANATORY DIAGRAM PROSPRAY 20
1
7. Relief valve
Lever position vertical – PRIME ( k circulation)
Lever position horizontal – SPRAY ( p)
8. Pressure control knob
9. ON/OFF switch
10. Circuit breaker
11. Pressure gauge
12. Oil cup for EasyGlide (EasyGlide prevents
increased wear of the packings)
2
8
9
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DESCRIPTION OF UNIT / STARTING OPERATION
Attention
ProSpray 20
4 STARTING OPERATION
3.5 TECHNICAL DATA
Voltage
100-110 VAC~, 50/60 Hz or
220-240 VAC~, 50/60 Hz
Max. current consumption
100-110 VAC~
220-240 VAC~
Power Cord
Max. operating pressure
Volume ow at 12 MPa (120 bar) with water
Max tip size
0.021 inch – 0.53 mm
Max. temperature of the coating material
Max viscosity
Weight
15.2 kg
Special high-pressure hose
6,35 mm, 15 m - 1/4” - 18 NPSM
Dimensions (L X W X H)
480 x 360 x 405 mm
Vibration
Spray gun does not exceed 2.5m/s
Max sound pressure level
11.0 A
5.3 A
See page 88
214 bar (21.4 MPa)
1.62 l/min
43°C
20.000 MPa·s
80 dB*
4.1 HIGHPRESSURE HOSE, SPRAY GUN AND
SEPARATING OIL
1. If equipped, screw the pressure gauge (1) to the coating
material outlet (Fig. 2, Item 2).
2. Screw the high-pressure hose (3) to the coating material
outlet (Fig. 2, Item 4).
3. Screw the spray gun (5) with the selected tip onto the
high-pressure hose.
4. Tighten the union nuts at the high-pressure hoses rmly
so that coating material does not leak.
1
4
2
3
5. Fill the oil cup with EasyGlide (Fig. 3). Do not use too much
EasyGlide, i.e. ensure that no EasyGlide drips into the
2
coating material container.
EasyGlide prevents increased wear and tear to
the packings.
5
* Place of measurement: 1 m distance from unit and
1.60m above oor, 12 MPa (120 bar) operating pressure,
reverberant oor
3.6 TRANSPORTATION IN VEHICLE
Secure the unit with a suitable fastening.
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DESCRIPTION OF UNIT
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ProSpray 20
4.2 CONNECTION TO THE MAINS NETWORK
The unit must be connected to an appropriatelygrounded safety outlet.
tention
Before connecting the unit to the mains supply, ensure that the
line voltage matches that specied on the unit’s rating plate.
The connection must be equipped with a residual current
protective device with INF ≤ 30 mA.
Wagner‘s accessories program also includes
a mobile operator protection device for the
electronic supply, which can also be used with
other electronic equipment.
4.3 CLEANING PRESERVING AGENT WHEN
STARTINGUP OF OPERATION INITIALLY
1. Immerse the suction tube (Fig. 4, Item 2) and return hose
(1) into a container with a suitable cleaning agent.
2. Turn the pressure control knob counterclockwise (3) to
minimum pressure.
3. Open the relief valve (4), valve position PRIME (k
circulation).
4. Switch the unit (5) ON.
5. Wait until the cleaning agent exudes from the return hose.
6. Close the relief valve, valve position SPRAY (p spray).
7. Pull the trigger of the spray gun.
8. Spray the cleaning agent from the unit into an open
collecting container.
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1
5
4
2
4.4 TAKING THE UNIT INTO OPERATION WITH
COATING MATERIAL
1. Immerse the suction tube (Fig. 4, Item 2) and return hose
(1) into the coating material container.
2. Turn the pressure control knob counterclockwise (3) to
minimum pressure.
3. Open the relief valve (4), valve position PRIME (k
circulation).
4. Switch the unit (5) ON.
5. Wait until the coating material exudes from the return
hose.
6. Close the relief valve, valve position SPRAY (p spray).
7. Trigger the spray gun several times and spray into a
collecting container until the coating material exits the
spray gun without interruption.
8. Increase the pressure by slowly turning up the pressure
control knob.
Check the spray pattern and increase the pressure until
the atomization is correct.
Always turn the pressure control knob to the lowest
setting with good atomization.
9. The unit is ready to spray.
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SPRAYING
i
5 SPRAYING
ProSpray 20
Injection hazard. Do not spray without the tip
guard in place. NEVER trigger the gun unless
the tip is completely turned to either the spray
or the unclog position. ALWAYS engage the
gun trigger lock before removing, replacing or
cleaning tip.
A) The key to a good paint job is an even coating over the
entire surface. Keep your arm moving at a constant
speed and keep the spray gun at a constant distance from
the surface. The best spraying distance is 10-12 inches
(25 to 30 cm) between the spray tip and the surface.
A
25 - 30 cm
C
25 - 30 cm25 - 30 cm
If very sharp edges result or if there are streaks in
the spray jet – increase the operating pressure or
dilute the coating material.
B) Keep the spray gun at right angles to the surface. This
means moving your entire arm back and forth rather than
just exing your wrist.
Keep the spray gun perpendicular to the surface,
otherwise one end of the pattern will be thicker than the
other.
B
C) Trigger gun after starting the stroke. Release the trigger
before ending the stroke. The spray gun should be
moving when the trigger is pulled and released. Overlap
each stroke by about 30%. This will ensure an even
coating.
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HANDLING THE HIGH -PRESSURE HOSE / INTERRUPTION OF WORK
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ProSpray 20
6 HANDLING THE HIGHPRESSURE
HOSE
7 INTERRUPTION OF WORK
The unit is equipped with a high-pressure hose
specially suited for piston pumps.
Danger of injury through leaking high-pressure
hose. Replace any damaged high-pressure hose
immediately.
Never repair defective high-pressure hoses
yourself!
The high-pressure hose is to be handled with care. Avoid sharp
bends and folds: the smallest bending radius is about 8” (20 cm).
Do not drive over the high-pressure hose. Protect against sharp
objects and edges.
Never pull on the high-pressure hose to move the device.
Make sure that the high-pressure hose cannot twist. This can be
avoided by using a Wagner spray gun with a swivel joint and a
hose system.
When using the high-pressure hose while
working on scaolding, it is best to always guide
the hose along the outside of the scaolding.
1. Open the relief valve, valve position PRIME (k circulation).
2. Switch the unit OFF.
3. Turn the pressure control knob counterclockwise to
minimum pressure.
4. Pull the trigger of the spray gun in order to release the
pressure from the high-pressure hose and spray gun.
5. Secure the spray gun, refer to the operating manual of the
spray gun.
6. If a standard tip is to be cleaned, see Page 23, Section 12.2.
If a non-standard tip is installed, proceed according to the
relevant operating manual.
7. Depending on the model, leave the suction tube or the
suction hose and return hose immersed in the coating
material or swivel or immerse it into a corresponding
cleaning agent.
If fast-drying or two-component coating material
is used, ensure that the unit is rinsed with a
tention
suitable cleaning agent within the processing
time.
The risk of damage rises with the age of the highpressure hose. Wagner recommends replacing
high-pressure hoses after 6 years.
Use only Wagner original-high-pressure hoses
in order to ensure functionality, safety and
durability.
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