DeVilbiss E P2 – 8 Operation Manual

SB-E-2-220 ISS.04

Operation Manual

GFG – Gravity-feed Spray Gun

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P 2 – 8

2 © 2007 ITW Finishing Systems and Products

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Operation Manual

GFG – Gravity-feed Spray Gun

Important

Read and follow all instructions and Safety Precautions before using this

equipment

Description

The GFG 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 most solvent-based coating materials.

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. Model Part No.

Example: GFG-G186-14 Example: GFG-613FFH-186

Kit No.
Air Cap No.

Fluid Tip Size Fluid Tip Size Air Cap No.

EC Declaration of Conformity

We, ITW Finishing UK, Ringwood Rd, Bournemouth, Dorset, BH11 9LH, UK, as the

manufacturer of the Spray gun model GFG, 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.

B. Holt, General Manager

30th June 2003

ITW Finishing Systems and Products reserve the right to modify equipment specification without prior notice.

© 2007 ITW Finishing Systems and Products 3

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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 supplier’s 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 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 set­up 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.

4 © 2007 ITW Finishing Systems and Products

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Parts List

Ref. No Description Part Number Qty

1 Air cap/Retaining ring See chart 1 1

1a Spring clip JGA-156-K5 1

+ 2

Nozzle See chart 2 1

3 Baffle & seal JGD-402-K 1

#*+ 4 Spring adjusted needle Packing (kit of 2) Gti-445-K2 1

5 Spreader valve Gti-404-K 1

# 6 Stud and screw Gti-408-K5 1

+ 7

Needle See chart 2 1

# 8 Spring Gti-409-K5 1

9 Bushing JGA-17 1

10 Needle adjusting screw Gti-414-K 1

11 Valve assembly JGK-449 1

12 Trigger Gti-108 1

13 Connector 1/4 JGA-158 1

14 Gun hook GFG-6 1

15 Air flow valve Gti-415-K 1

*+ 16 Seal JGS-72-K5 2

*+ 17 Seal Gti-33-K5 1

* 18 Seal & pin kit ( + SST-8434-K5) Gti-428-K5 2

19 Circlip 25746-007-K5 1

20 Circlip SST-8434-K5 2

21 1/2 Ltr gravity cup kit GFC-501 1

22 Cup lid GFC-402 1

23 Drip check lid kit of 5 GFC-2-K5 1

24 Filter KGP-5 1

25 Washer GFC-17-K5 1

26 Air-valve stem assembly 1

27 Spring JGV-262-K5 1

28 Spanner Spn-5 1

+ - Parts included in service kit KK-4502 (see accessories)
* - Parts included in service kit KK-4558
# - Parts included in mini service kit KK-4503

© 2007 ITW Finishing Systems and Products 5

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Chart 1. Air Cap and Nozzle Size Combinations

Air Cap

No

Air Cap Part

Number

FF

1.4

FW

1.6

EX

1.8 D 2.2

30 AV-4239-30 X

43 AV-4239-43 X

64 MB-4039-64 X

80 MB-4039-80 X

186 AV-4239-186 X X

Chart 2. Nozzle/Needle Combinations

Nozzle

Size

Nozzle Order

Number

Needle Order

Number

FF AV-645-FF JGA-421-FF-K

FW AV-645 FW JGA-421-FF-FW

EX AV-645-EX JGA-421-DEX-K

D AV-6745-D JGA-421-DEX-K

6 © 2007 ITW Finishing Systems and Products

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Specification

Air supply connection - Universal ¼” BSP and NPS
Maximum air pressure - P1 = 7 bar (130 psi)
Gun weight - 635 g
Cup weight - 172 g
Maximum service temperature - 40°C

Materials of construction
Gun body - Polished aluminium
Nozzle - Stainless steel
Needle - Stainless steel
Cup - Acetal with stainless steel Insert
Lid - Acetal

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 106Ω is 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 3.0 bar (43-45 psi) 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.

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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.

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. Re­assemble 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 manufacturers recommendations or ITW Finishing UK Website:

www.itweuropeanfinishing.com

Accessories

Spanner – order SPN-5
Cleaning brush – order 4900-5-1-K3
GFC-511 – Gravity cup, polyester for use with sulphuric acid based primers
Service kit – order KK-4502 add nozzle size and material code as required (e.g. KK-4502-FF-

H)

Service kit – order KK-4558
Mini service kit – order KK-4503
Pressure gauge attachment – order GA-515
Gun mounted regulator – order DVR-501
Lubricant – order GL-1-K10

8 © 2007 ITW Finishing Systems and Products

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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