DeVilbiss GTI User manual

Operation Manual
GTi – Pressure Feed Spraygun
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© 2007 ITW Finishing Systems and Products
Operation Manual
GTi – Pressure Feed Spraygun
Important
Read and follow all instructions and Safety Precautions before using this
equipment
Description
The GTi Pressure Feed Spraygun Kit is approved to ATEX regulations 94/9/EC, protection
level; II 2 G X, Suitable for use in Zones 1 and 2
Important: These Sprayguns are suitable for use with both waterbased and solvent based
coating materials. The design uses EPA compliant atomising (Devilbiss Trans-Tech®)
technology to reduce overspray and improve coating efficiency. Nozzles and Needles are
manufactured in Stainless Steel. These guns are not designed for use with highly corrosive
and/or abrasive materials and if used with such materials it must be expected that the need for
cleaning and/or replacement of parts will be increased. If there is any doubt regarding the
suitability of a specific material contact your local Distributor or ITW Finishing direct.
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Model Part Number
Example: GTI-P110B-14
Gunbody colour
B = blue
Nozzle size
Aircap Number
EC Declaration of Conformity
We: ITW Finishing UK, Ringwood Rd, Bournemouth, Dorset, BH11 9LH, UK, as the
manufacturer of the Spraygun model GTi-P, declare, under our sole responsibility, that the
equipment to which this document relates is in conformity with the following standards or other
normative documents:
BS EN 292-1 PARTS 1 & 2: 1991, BS EN 1953: 1999; and thereby conform to the
protection requirements of Council Directive 98/37/EEC relating to Machinery Safety Directive,
and;
EN 13463-1:2001, council Directive 94/9/EC relating to Equipment and Protective
Systems intended for use in Potentially Explosive Atmospheres protection level II 2 G X.
This product also complies with the requirements of the EPA guidelines, PG6/34.
Transfer efficiency certificates are available on request.
B. Holt, General Manager
30th June 2003
ITW Finishing Systems and Products reserve the right to modify equipment specification without prior notice.

3 © 2007 ITW Finishing Systems and Products
SAFETY WARNINGS
Fire and explosion
Solvents and coating materials
can be highly flammable or
combustible when sprayed. ALWAYS
refer to the coating material suppliers
instructions and COSHH sheets
before using this equipment
Users must comply with all local
and national codes of practice
and insurance company
requirements governing
ventilation, fire precautions, operation
and house-keeping of working areas
This equipment, as supplied,
is NOT suitable for use with
Halogenated Hydrocarbons.
Static Electricity can be
generated by fluid and/or air
passing through hoses, by the
spraying process and by cleaning non-
conductive parts with cloths. To prevent
ignition sources from static discharges,
earth continuity must be maintained to
the spraygun and other metallic
equipment used. It is essential to use
conductive air and/or fluid hoses.
Personal Protective
Equipment
Toxic vapours – When sprayed,
certain materials may be
poisonous, create irritation or be
otherwise harmful to health.
Always read all labels and safety data
sheets for the material before spraying
and follow any recommendations. If In
Doubt, Contact Your Material Supplier
The use of respiratory protective
equipment is recommended at all
times. The type of equipment
must be compatible with the material
being sprayed.
Always wear eye protection when
spraying or cleaning the spraygun
Gloves must be worn when
spraying or cleaning the
equipment
Training – Personnel should be given
adequate training in the safe use of
spraying equipment.
Misuse
Never aim a spraygun at any part of the
body
Never exceed the max. recommended
safe working pressure for the equipment
The fitting of non-recommended or non-
original spares may create hazards
Before cleaning or maintenance, all
pressure must be isolated and relieved
from the equipment
The product should be cleaned using a
gun washing machine. However, this
equipment should not be left inside gun
washing machines for prolonged periods
of time.
Noise Levels
The A-weighted sound level of
sprayguns may exceed 85 dB
(A) depending on the set-up
being used. Details of actual
noise levels are available on request. It is
recommended that ear protection is worn
at all times when spraying.
Operating
Spray Equipment using high pressures
may be subject to recoil forces. Under
certain circumstances, such forces could
result in repetitive strain injury to the
operator.
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© 2007 ITW Finishing Systems and Products
Nozzle Needle
GTI-213-085-K GTI-449-10-K
GTI-213-10-K GTI-449-10-K
GTI-213-11-K GTI-449-12-K
GTI-213-12-K GTI-449-12-K
GTI-213-13-K GTI-449-14-K
GTI-213-14-K GTI-449-14-K
Nozzle Needle
GTI-213-15-K GTI-449-14-K
GTI-214-16-K GTI-420-K
GTI-214-18-K GTI-420-K
GTI-214-20-K GTI-420-K
GTI-214-22-K GTI-420-K
Chart 1
Parts List
Ref. No Description Part Number Qty
*1 Air Cap/Retaining ring GTI-407-* 1
1a Spring Clip JGA-156-K5 1
+2 Nozzle SEE CHART 1
3 Baffle & Seal GTI-425-K 1
Baffle Seal - Kit of 5 GTI-33-K5 1
+4 Spring Adjusted Needle Packing Gti-445-K2 1
5 Spreader Valve GTI-405-K 1
6 Stud and Screw GTI-408-K5 1
+7 Needle SEE CHART 1
+8 Spring and Pad GTI-409-K5 1
9 Bushing GTI-402-K 1
10 Needle Adjusting Screw GTI-414-K 1
11 Valve Assembly JGK-449 1
12 Trigger GTI-108 1
13 Connector JGA-158 1
14 Airflow Valve GTI-415-K 1
15 Lock Nut JGA-51-K5 1
16 Seal 23165-001 1
17 Fluid Inlet Connector and seal JGA-159-K 1
18 Circlip 25746-007-K5 1
19 Circlip 2
20 Seal & Pin Kit ( + SST-8434-K5) GTI-428-K5 2
9a Seal kit of 5 JGS-72-K5 2
21 Air valve stem assembly - 1
22 Spring JGV-262-K5 1
* - * Denotes Aircap Number - Available Aircaps No’s 110, 122 and 123
+ - Parts included in service Kit (see accessories)
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5 © 2007 ITW Finishing Systems and Products
Specification
Air supply connection - Universa l 1/4BSP and NPS
Fluid Supply Connection - Universal 3/8BSP and NPS
Maximum static Air inlet pressure - P1= 9 bar (130 psi)
Maximum static Fluid inlet pressure - P2= 14 bar (200 psi)
Nominal gun Air inlet pressure with gun triggered 2 bar (29 psi)
Maximum Service temperature - 40°C
Gun Weight - 640 g
Materials of Construction
Gun body - Anodised Aluminium
Nozzle - Stainless steel
Needle - Stainless Steel
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© 2007 ITW Finishing Systems and Products
Installation
Important: To ensure that this equipment
reaches you in first class condition,
protective coatings have been use. Flush
the equipment through with a suitable
solvent before use.
1. Attach air hose to connector (13).
Recommended hose size 8 mm
bore. The hose must be conductive
and electrical bond from the
spraygun to earth should be checked
with an ohmeter. A resistance of less
than 106Ωis recommended.
2. Air supply should be filtered and
regulated.
1. Turn off air and coating supply
and relieve pressure in the
supply lines, or if using QD
system, disconnect from airline
and fluid line.
2. Remove air cap (1) and clean. If
any of the holes in the cap are
blocked with coating material use
a toothpick to clean. Never use
metal wire which could damage
the cap and produce distorted
spray patterns
3. Ensure the tip of the nozzle (2) is
clean and free from damage.
Build up of dried paint can distort
the spray pattern.
Preventative Maintenance
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Operation
1. Mix coating material to
manufacturers instructions
2. Turn needle adjusting screw (10)
clockwise to prevent movement.
3. Turn pattern valve (5) counter-
clockwise to fully open
4. Adjust inlet air pressure to give 2
bar (29psi) at the gun inlet with
the gun triggered. (pressure
gauge attachment shown under
Accessories is recommended for
this).
5. Turn needle adjusting screw
counter clockwise until first thread
shows.
6. Test spray. If the finish is too dry
reduce airflow by reducing inlet
pressure. If finish is too wet
reduce fluid flow by turning needle
screw (10) clockwise or reducing
the fluid pressure. If atomisation is
too coarse, increase inlet air
pressure. If too fine reduce inlet
pressure.
7. The pattern size can be reduced
by turning adjusting valve (5)
clockwise.
8. Hold gun perpendicular to surface
being sprayed. Arcing or tilting
may result in uneven coating.
9. The recommended spray distance
is 150-200 mm (6”-8”).
10.Spray edges first. Overlap each
stroke a minimum of 50%. Move
gun at a constant speed.
11.Always turn off air and fluid supply
and relieve pressure when gun is
not in use.
Air Flow Valve (14)
1. If the airflow valve (14) is fitted
this can be used to reduce the
inlet pressure through the gun.
Screw the Adjusting Knob in to
reduce pressure.

7 © 2007 ITW Finishing Systems and Products
4. Lubrication – stud/screw (6),
needle (7) and air valve (11)
should be oiled each day.
Nozzle (2) and Needle (7) –
Remove parts in the following order:
10, 8, 7, 1 and 2. Replace any worn
or damaged parts and re-assemble
in reverse order. Recommended
tightening torque for nozzle (2) 17-
20 Nm (150-180 lbf in)
Packing – Remove parts 10, 8, 7.
Unscrew cartridge (4). Fit new
cartridge finger tight. Re-assemble
parts 7, 8, and 10 and tighten
cartridge (4) with spanner sufficient
to seal but to allow free movement
of needle. Lubricate with gun oil.
Air valve (11) – Remove Trigger,
parts 6 and 12. Unscrew valve
assembly. Re-assemble, fitting
spring to valve head before fitting
valve.
Spreader valve (5) – Caution:
always ensure that the valve is in
the fully open position by turning
screw fully counter-clockwise before
fitting to body.
Air cap / Nozzle Selection
Refer to coating material
manufacturers recommendations or
Replacement of Parts
Accessories
Spanner – order SPN-5
Cleaning Brush – order 4900-5-1-K3
Service Kit – For sizes 16 to 22 order GTI-416 and nozzle size as required
(i.e GTI-416-18)
For sizes 085 to 15 order GTI-426 and nozzle as required size as required
(i.e GTI-426-14)
Pressure gauge Attachment – order GA-515
Gun Mounted Regulator – order DVR-501
Lubricant - order GL-1-K10
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© 2007 ITW Finishing Systems and Products July 07
ITW Finishing Systems and Products
Ringwood Road,
Bournemouth,
BH11 9LH,
England.
Tel. No. [phone]
Telefax No. [phone],
Website address http://www.itweuropeanfinishing.com
ITW Automotive Finishing UK
Anchorbrook Industrial Estate
Lockside
Aldridge,
Walsall,
UK.
Tel. No. [phone]
Telefax No. [phone],
Website address http://www.itweuropeanfinishing.com
ITW Finishing Systems and Products is a Division of ITW
Ltd. Reg. Office:
Admiral House,
St Leonard’s Road,
Windsor,
Berkshire,
SL4 3BL,
UK
Registered in England: No 559693 Vat No 619 5461 24
ITW Oberflächentechnik GmbH & Co. KG
Justus-von-Liebig-Straße 31
63128 Dietzenbach
Tel [phone]
Telefax: (060 74) 403300
Website address http://www.itw-finishing.de
ITW Surfaces Et Finitions
163-171 avenue des Auréats B.P. 1453
26014 VALENCE CEDEX FRANCE
Tél. [phone]
Télex 345 719F DVILBIS
Téléfax: (33) 475-75-27-99