DeVilbiss GTI User manual

1 © ITW Ltd 2000

SB-E-2-360-J

E P 1 - 8

OPERATION MANUAL

GTi —Gravity Spraygun

Operation Manual

GTi – Gravity Spraygun

Important

Read and follow all instructions and Safety Precautions before using this

equipment

Description

This product is suitable for use with both waterbased and solvent based

coating materials. The design uses EPA compliant atomising technology to

reduce overspray and improve coating efficiency.

Important: 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.

Declaration of Conformity

We, ITW Finishing UK, Ringwood Road Bournemouth Dorset England

declare under our sole responsibility that this product is in conformity with BS

EN 292: parts 1 and 2 :1991 and BS EN 1953:1999, following the provisions

of the Machinery Directive 89/392/EEC. This product also complies with the

requirements of the EPA guidelines, PG6/34. Transfer efficiency certificates

are available on request.

B.Holt,General Manager

Model Part Number

Example: GTI-G110B-14

Aircap Fluid nozzle size

(14 = 1,4 mm)

Gunbody Finish

M= Multi Colour (colours may vary), B= Blue Anodised

3 © ITW Ltd 2000

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 though hoses. To

prevent such a risk, earth continuity to

the spray equipment and the object

being sprayed should be maintained.

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

* - * Denotes Aircap Number - Available Aircaps No’s 105 and 110

** - ** Denotes Fluid Tip Size—Available Sizes;

GTI-213 0.85, 1.0, 1.1, 1.2, 1.3,1.4,1.5 mm

GTI-214 1.6, 1.8, 2.0 and 2.2 mm

+ - Parts included in service Kit (see accessories)

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 (up to 1.5 mm) GTI-213-**-K 1

Nozzle (1.6 mm to 2.2 mm) GTI-214-**-K 1

Baffle & Seal GTI-425-K 1

Baffle Seal - Kit of 5 GTI-33-K5 1

+4 Packing GTI-439-K2 1

5 Spreader Valve GTI-404-K 1

6 Stud and Screw GTI-408-K5 1

+7 Needle (for GTI-214 Tip) GTI-420-K 1

Needle (for GTI-213 Tip) GTI-413-K 1

+8 Spring and Pad GTI-409-K5 1

9 Bushing GTI-402-K 1

9a Seal kit of 5 JGS-72-K5 1

11 Valve Assembly JGK-449 1

12 Trigger GTI-108 1

13 Connector JGA-158 1

14 Gun Hook GFG-6 1

15 Airflow Valve GTI-415-K 1

16 1/2 Ltr Gravity Cup Kit GFC-501 1

17 Cup Lid GFC-402 1

18 Drip Check Lid kit of 5 GFC-2-K5 1

19 Filter KGP-5 1

20 Circlip 25746-007-K5 1

21 Circlip SST-8434-K5 2

22 Seal & Pin Kit ( + SST-8434-K5) GTI-428-K5 2

10 Needle Adjusting Screw GTI-414-K 1

23 Washer GFC-17-K5 1

24 Air valve stem assembly JGS-431-1 1

25 Spring JGV-262-K5 1

5 © ITW Ltd 2000

Specification

Air supply connection - Universal

1/4 BSP and NPS

Maximum static inlet pressure - P1= 9 bar (130 psi)

Nominal gun inlet pressure with gun triggered - 2 bar (29 psi)

Gun Weight - 580 g

Materials of Construction

Gun body - Anodised Aluminium

Nozzle - Stainless steel

Needle - Stainless Steel

Cup - Acetal and Stainless Steel

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.

2. Air supply should be filtered and

regulated.

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,

preferably in a gun wash

machine.

3. 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

4. Ensure the tip of the nozzle is

clean and free from damage.

Build up of dried paint can distort

the spray pattern.

5. Lubrication – stud/screw (6),

needle (7) and air valve (11)

should be oiled each day.

Preventative Maintenance

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 airflow 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 airflow valve (15) is fitted

this can be used to reduce the

inlet pressure through the gun.

Screw the Adjusting Knob in to

reduce pressure.

7 © ITW Ltd 2000

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

manufacturers recommendations or

ITW Finishing UK Website:

www.itweuropeanfinishing.com

Replacement of Parts

Accessories

Spanner – order SPN-5

Cleaning Brush – order 4900-5-1-K3

Service Kit – order GTi-416 add nozzle size as required (i.e. GTi-416-14)

Pressure gauge Attachment – order GA-515

Gun Mounted Regulator – order DVR-501

Lubricant - order GL-1-K10

January 03

ITW Finishing Systems and Products

Ringwood Road,

Bournemouth,

BH11 9LH,

England.

Tel. No. (01202) 571111

Telefax No. (01202) 581940,

Website address http://www.itweuropeanfinishing.com

ITW Oberflächentechnik GmbH & Co. KG

Justus-von-Liebig-Straße 31

63128 Dietzenbach

Tel (060 74) 403-1

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. (33) 475-75-27-00

Télex 345 719F DVILBIS

Téléfax: (33) 475-75-27-99

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