DeVilbiss GTI User manual

SB-E-2-360-US
Operation Manual
GTI W – Trans-Tech Gravity Spray Gun

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Operation Manual
GTI W – Trans-Tech Gravity- Feed Spray Gun
Important
Read and follow all instructions and Safety Precautions before using this
equipment
Description
The GTI W– Gravity-feed Spray gun 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 spray guns are suitable for use with both water-based 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.
Model Part No.
Example: GTI-G110W-13-US
AirCapNo.
Nozzle Size
Gun Body Colour
W = light blue;
EC Declaration of Conformity
We, ITW Finishing UK, Ringwood Rd, Bournemouth, Dorset, BH11 9LH, UK, as the
manufacturer of the Spray gun model GTI-G, 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.

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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 MSDS 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 spray gun
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, safety data sheets and follow any
recommendations for the material before spraying. 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 spray gun.
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 spray gun 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 spray guns 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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Parts List
Ref. No Description Part Number Qty
1 Air cap/Retaining ring GTI -407-110 1
1a Spring clip JGA-156-K10 1
**2 Nozzle (up to 1.5 mm) GTI -213-**-K 1
Baffle & seal GTI -425 13
Baffle seal – Kit of 5 GTI -33-K5 1
4 Packing GTI -439-K2 1
5 Spreader valve GTI -404 1
6 Stud and screw GTI -408-K5 1
7 Needle GTI -413 1
8 Spring and pad GTI -409-K5 1
9 Bushing 1
9a Seal kit of 5 JGS-72-K10 1
10 Needle adjusting screw GTI -414 1
11 Valve assembly JGK-449 1
12 Trigger GTI -108 1
13 Connector P-MB-51 1
14 Gun hook 1
15 Air flow valve GTI -415 1
16 1/2 Ltr gravity cup kit GFC-501 1
17 Cup lid GFC-402 1
18 Drip check lid 1
19 Filter KGP-5-K5 1
20 Circlip 1
21 Circlip 2
22 Seal & pin kit ( + SST-8434-K5) GTI-428-K5 2
23 Washer GFC-17-K5 1
24 Air-valve stem assembly 1
25 Spring 1
** Denotes Fluid tip size – Available sizes GTI-213 1.2, 1.3, 1.4, 1.5

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Specifications
Air supply connection - Universal ¼” BSP and NPS
Maximum static inlet pressure - P1= 9 bar (130 psi)
Nominal gun inlet pressure with gun triggered - 2 bar (29 psi)
Maximum service temperature - 40°C
Gun weight (with cup) - 775 g
Materials of Construction
Gun body - Anodised aluminium
Nozzle - Stainless steel
Needle - Stainless steel
Cup - Acetal and stainless steel

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Installation
Important: To ensure that this equipment reaches you in first class condition, protective
coatings have been used. 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 spray gun to earth should be checked with an
ohmmeter. A resistance of less than 106Ωis recommended.
2. Air supply should be filtered and regulated.
Operation
1. Mix coating material to manufacturers instructions.
2. Turn needle adjusting screw (10) counter-clockwise until first thread shows.
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. Test spray. If the finish is too dry, reduce air flow by reducing inlet pressure. If finish is too
wet, reduce fluid flow by turning needle screw (10) clockwise. If atomisation is too coarse,
increase inlet air pressure. If too fine, reduce inlet pressure.
6. The pattern size can be reduced by adjusting valve (5).
7. Hold gun perpendicular to surface being sprayed. Arcing or tilting may result in uneven
coating.
8. The recommended spray distance is 150-200 mm (6”-8”).
9. Spray edges first. Overlap each stroke a minimum of 50%. Move gun at a constant speed.
10.Always turn off air supply and relieve pressure when gun is not in use.
Air Flow Valve (15)
1. If the air flow valve (15) is fitted this can be used to reduce the inlet pressure through the
gun. Screw the adjusting knob in to reduce pressure.
Preventative Maintenance
1. Turn off air supply and relieve pressure in the airline or, if using QD system, disconnect from
airline.
2. Empty coating material into a suitable container and clean the gun and cup, preferably in a
gun wash machine.
3. IMPORTANT– the cup must not be cleaned or rubbed with a dry cloth or paper. It is
possible to generate a static charge by rubbing which, if discharged to an earthed
object could create an incendive spark and cause solvent vapours to ignite. Only use
a dampened cloth or antistatic wipes if additional cleaning is required within a
hazardous area.
4. Remove air cap 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.
5. Ensure the tip of the nozzle is clean and free from damage. Build-up of dried paint can
distort the spray pattern.
6. Lubrication – stud/screw (6), needle (7) and air-valve (11) should be oiled each day.

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Replacement of Parts
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 – Remove parts 6 and 12. Unscrew valve assembly. Re-assemble, fitting spring to
valve head.
Spreader valve – 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 manufacturer’s recommendations or ITW Finishing UK Website:
www.itweuropeanfinishing.com
Accessories
GFC-501 (Acetal) 20 oz. cup, GFC-504 (Aluminium) 20 Oz Cup & GFC-502 (Aluminium) 32 Oz
Cup Gravity Feed Cups: These gravity feed cups are designed to be used with GTI gravity feed
sprayguns.
HAV-500 or HAV-501 Adjusting Valve. The HAV-500 does not have a pressure gauge. Use to
control air usage at gun.
MSP-524 Twin Cartridge Paint Spray Respirator NIOSH – Certified (TC84a-1623) for respiratory
protection in atmospheres not immediately dangerous to life.
WR-103 Wrench: contains all necessary tip, hose and nut sizes used on or with gun.
192218 Scrubs: Scrubs are a pre-moistened hand cleaner towel for painters, body men and
mechanics that go where you go and no water is needed.
HAF- 507 Whirlwind In Line Air Filter: Removes water, oil and debris from the air line.
Spray Gun Lube SSL-10 (2 oz bottle) Compatible with all paint materials; contains no silicone or
petroleum distillates to contaminate paint. MSDS Sheet available on request.
192212 Professional Spray Gun cleaning Kit: Contains six precision tools designed to effectively
clean all Devilbiss, Binks, Finishline and other brand sprayguns.
Automotive Refinish Quick Connects for HVLP Guns (Air) High Flow Type
HC-4419 Stem ¼” NPT(F) HC-4719 Coupier ¼” NPT(M)/ NPS(M)
HC-1166 Stem ¼” NPT(M) HC-4720 Coupier ¼” NPT(F)

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DeVilbiss Automotive Refinishing
U.S/ Canada Customer Service Office:
1724 Indian Wood Circle
Suite J-K Maumee, OH 43537
Toll-Free Terlephone: 1-800-445-3988 (U.S.A and Canada only)
Toll-Free Fax [phone]
ITW Finishing Systems and Products
Ringwood Road,
Bournemouth,
BH11 9LH,
England.
Tel. No. [phone]
Telefax No. [phone],
Website address http://www.itweuropeanfinishing.com
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 Automotive Finishing UK
Anchorbrook Industrial Estate
Lockside
Aldridge,
Walsall,
UK.
Tel. No. [phone]
Telefax No. [phone],
Website address http://www.itweuropeanfinishing.com
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
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
Sept 06