A Deflector cone
B Nozzle body
C Outer nut
D Spray gun body
The Tribo manual spray gun PEM-T3 is used for powders suitable for friction loading.
The PEM-T3 powder spray gun is used for industrial powder coating.
This spray gun can be operated with the following control units:
E Trigger
F Tribo air connection
G Powder hose connection
H Power supply
• EPG 2008 with powder injector PI-P1
• EPG-D1 with powder injector PI-F1
• Control unit Bravo with powder injector PI-FM1
The powder feed and the Tribo air supply to the spray gun are activated by pressing the
trigger.
Caution
The user must ensure, that the spray gun is only connected to Wagner equipment!
High ambient temperatures must be avoided; in particular, the hoses must not be
routed through factory areas exposed to direct sunlight!
To provide a safeguard against unintentional use of the spray gun, the control unit must
This manual contains information and hints for the service, repair and maintenance of the
equipment. The user must obey all the rules of operation found in this manual; failure to do so
will render the warranty invalid.
Wagner powder systems are designed to meet the most stringent safety requirements. They
can be operated in compliance with generally applicable safety codes and applicable national
safety regulations.
Please pay particular attention to the parts marked by the following symbols. Follow the
instructions exactly, in the interests of both your own safety and the correct functioning of the
unit.
Warning
This symbol draws attention to the fact that if the operating instructions, working
instructions, prescribed working sequences etc. are not followed exactly, this can
lead to injury or even fatal accidents.
Caution
This symbol indicates that failure to follow the operating instructions, working instructions, prescribed working sequences etc. exactly can lead to material damage.
Hint
This symbol draws your attention to useful additional information and tips. Failure to
observe these instructions can cause malfunctions.
4 0351709 - PEM-T3 03/2008
Safety regulations
1. Safety regulations
1.1 Safety hints
010101_ .doc
Warning
This equipment can be dangerous if it is not operated in accordance with this
operating manual!
There might be additional regulations to be observed, put into effect by
governmental, state or other official agencies or local security (fire)
departments
!
Warning
Under no circumstance may persons with a cardiac pacemaker come close
to the area between the tip of the spray gun and the work piece to be
coated!
The following rules must be observed in order to ensure a safe and efficient use of the
equipment:
• The user has to observe particularly the safety
guidelines of the VdS, the local professional and
security institutions.
• Trained and qualified personnel may only operate the electrostatic coating equipment.
• The spray gun may only be operated in powder
coating booths or on powder coating stands that
are equipped with a ventilation system.
• The user has to make sure, that the average
powder/air concentration does not exceed 50%
of the LEL (maximum allowed concentration of
powder in air). If a reliable LEL value is not
available, the average powder/air concentration
may not exceed 10 g/m³.
• Over sprayed powder must be reliably collected.
• Adhere to the instructions given by the manufac-
turers and to the prevalent local laws on the
environment when disposing of waste coating
powder.
• The main power connection for operation of the
Wagner powder equipment must be electrically
interlocked with the exhaust system of the
powder coating booth.
• In the event of faults or defects, repair work is to
be performed at the user's discretion.
• The user must conduct periodic checks of the
powder spray equipment (at least every year)
with regard to explosion-protection.
• Repairs may only be carried out by trained technicians and may never be carried out in an
explosion hazardous area. Protective measures
against explosions must still be installed.
• The work area must have an electrostatically
conductive floor (measured in accordance with
EN 1081).
• All conductive parts in the work area must be
electrostatically grounded (work area = 1 m
around every spray location or opening in the
booth).
• All persons inside the work area must wear
electrostatically conductive footwear.
• Spray guns should be operated with bare hands!
If gloves are used they must be made of
conductive material.
• Guideline 94/9/EC: The device is suited for the
applications it was designed for, even in
explosion-hazard areas.
03/2008 0351709 - PEM-T35
Safety regulations
• Wear suitable work clothing
• Use breathing protection or a vizard for work
which produces powder and when
developing solvent steams:
Avoid health dangers by inhalation and skin
contacts of solvent steams and lacquer
aerosols; Cornea injuries by splashes in the eye.
Warning
For your own safety, use only accessories and equipment listed in the
operating manual. The use of individual parts other than those
recommended in the operating manual may create a hazard to personal safety.
Use only original Wagner replacement parts!
Alteration or repair of Wagner original spare parts may cause fatal
accidents or explosions in the coating system!
010102_ .doc
• Check the equipment for damage
Before operating the system, check if slightly
damaged parts still function correctly. Check
whether the moving parts operate properly,
whether they jam and whether parts are
damaged.
Damaged parts should be repaired or
replaced by a Wagner customer service.
1.2 EC Declaration of conformity
Wagner hereby declares that the unit described in these operating instructions has been
designed and manufactured according to the provisions of EU Directives 98/37/EC,
94/9/EC, 73/23 EEC and 89/336 EEC.
The following European standards were applied:
EN 12100-1/-2 EN 50281-1-1/-1-2 EN 61000-6-1
EN 61000-6-2 EN 61000-6-3 EN 60204-1
EN 50053-2 EN 50050 EN 50177
The following German standards and/or Guidelines were applied:
BGI 764
The product includes an EC declaration of conformity. This can be ordered again if
necessary from your WAGNER dealer by giving details of the product and serial number
involved.
0103_Konformitaet.doc
The number of the EC Declaration of Conformity is 0351967.
6 0351709 - PEM-T3 03/2008
Preparing the spray gun
2. Preparing the spray gun
2.1 Select the suitable nozzle system
0201_Duesenauswahl_tribo.doc
Nozzle Overview Application Spray pattern
Oval powder cloud:
Deflector cone
• Wire goods
• Grid designs
Size is dependent on the deflector
cone diameter.
For powder quantities from:
50 ... 300 g/min
Fan spray nozzle
Difficult workpieces:
•
Undercuts
• Profiles
Wide fan spray
nozzle
Difficult workpieces:
• Undercuts
• Profiles
The part numbers are listed in chapter 8 "Scope of delivery and spare parts lists".
2.2 Connecting the spray gun
Before you start making connections, switch off the powder feeding. Refer to the
operating instructions of the corresponding control unit for this.
Widely spread flat powder cloud.
For powder quantities:
from 50 ... 150 g/min
Widely spread flat powder cloud.
For powder quantities:
from 100 ... 250 g/min
Tribo air
from the control unit
Powder feed
to the electrical connection
at the control unit
from the powder injector
pemt3_0003
03/2008 0351709 - PEM-T37
Preparing the spray gun
• Connect the spray gun to the Tribo current measuring or display module with the electrical
cable.
• Connect the powder hose to the spray gun and to the powder injector.
• Connect the hose for Tribo air to the spray gun and to the control unit.
2.3 Grounding
For safety reasons, the spray gunmust be properly grounded. This occurs through the
electrical cable.
Good grounding of the workpiece is also necessary for optimum powder coating.
A poorly grounded workpiece causes:
• dangerous electric charging of the workpiece
• back-spray onto spray gun and user
• uneven coating
• very bad wrap around
0203_ .doc
Warning
Sparks between workpiece and conveyor hooks (hangers) can occur if hooks or
other hanger parts are not completely cleaned!
These sparks can cause heavy radio frequency interference.
8 0351709 - PEM-T3 03/2008
Working with the spray guns
3. Working with the spray guns
3.1 Start up the spray gun
• Switch on the control unit.
• Select the type of gun Manual and charging Tribo on the control unit.
• Refer to the operating instructions of the control unit for this.
Caution
To reduce wear, the total of feed air and dosage air must range between
3.5 - 6 Nm3/h!
The total of feed air, dosage air and Tribo air should not exceed a maximum of
7.5 Nm3/h!
• Hold the manual gun in the spray booth, press the trigger and set the powder volume and
the powder speed to a test piece by adjusting the volume of feed air and dosage air.
• Only open the Tribo air until a Tribo current reading of 3 µA is attained.
Caution
The Tribo air must be reduced or shut off if the Tribo current (charging current) exceeds
μA!
3.5
The charging current depends on the type of powder used and should ideally lie between
2.5 and 3.5
3.2 Switching off the spray gun
The spray gun is switched off in different ways, depending on the type of powder injector.
Hint
The spray gun should be blown through (flushed) and cleaned from powder deposits
with every interruption of work. In this way
on again are to a great extent avoided.
The flushing procedure can be set on the control unit if the spray gun is connected to an
EPG-D1 or a Control unit Bravo in conjunction with the PI-F1 powder injector. In this case the
spray gun is blown free of powder as soon as the trigger is released.
μA.
powder deposits and surges on switching
0302_.doc
If the spray gun is operated with an
proceed as follows:
• Release the trigger on the spray gun so that the powder feed and high voltage generator
are switched off.
• Set the knob for the overall air quantity on the control unit EPG 2008 to maximu m. No more
powder will be delivered when switching on again.
• Press the trigger on the spray gun so that the spray gun is blown free of powder.
• Switch off the control unit and secure against inadvertent switch on.
03/2008 0351709 - PEM-T39
EPG 2008 control unit and a PI-P1 powder injector,
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