DeVilbiss GTI Operation Manual

SB-E3-2-361

Operation Manual

GTi – Suction Feed Spraygun

ISS.05

E

E

SV

SV

P 2 - 7

P 14– 19

DA

DA

P 8 - 13

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Operation Manual

GTi – Suction Feed 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.

Model Part Number

Example: GTI-S110B-14

Aircap Fluid nozzle size
(14 = 1,4 mm)
Gunbody Finish

B= Blue Anodised

Declaration of Conformity

We, ITW Finishing Systems and Products, 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

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

© 2007 ITW Finishing Systems and Products

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SAFETY WARNINGS

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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

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.

suitable for use with

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

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 non­original 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

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

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© 2007 ITW Finishing Systems and Products

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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

3

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

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

+7

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
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 Cup lid assembly KR-4001-B 1
19 Lid Gasket - kit of 3 KR-11-K3 1
20 Drip free diaphragm—kit of 5 KR-115-K5 1
21 Cup - Blue anodised KRW-401-K 1
22 Cup - Blue anodised KRW-502-B 1
23 Circlip 25746-007-K5 1
24 Circlip 2
25 Seal & Pin Kit GTI-428-K5 2

26 Air valve stem assembly 1

27 Spring JGV-262-K5 1
28 Spanner SPN-5 1

* - * 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)

© 2007 ITW Finishing Systems and Products

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Specification

Air supply connection - Universal 1/4 BSP and NPS
Fluid Supply Connection - Universal
Maximum static inlet pressure - P
Maximum static fluid pressure - P
Nominal gun inlet pressure with gun triggered - 2 bar (29 psi)
Gun Weight - 500 g
Cup Weight - 460g

= 9 bar (130 psi)

1

= 9 bar (130 psi)

2

Materials of Construction

Gun body - Anodised or Nickel Plated Aluminium
Nozzle - Stainless steel
Needle - Stainless Steel
Cup (KR-494-1) - Aluminium, internally coated with PTFE, SS pins
Cup (KRW-401-K) - Anodised Aluminium with Brass Nickel plated pins
Lid Assembly - Aluminium and Brass Nickel plated
Cup Lid Gasket - Polyethylene
Diaphragm - Polyethylene

3

/8 BSP and NPS

5

© 2007 ITW Finishing Systems and Products

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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 air supply should be
filtered and regulated.

Operation

1. Mix coating material to

manufacturers instructions.

2. Fill the cup with the required

amount of material. Fill to no more
than 25mm(1“) from the top of the
cup. DO NOT OVERFILL.

3. Attach Cup to the Lid assembly.

4. Turn needle adjusting screw (10)

on the spraygun clockwise to
prevent movement.

5. Turn pattern valve (5) counter-

clockwise to fully open

6. 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).

7. Turn needle adjusting screw

counter clockwise until first thread
shows.

8. 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.

2. Attach the Cup Lid assembly m
(27) to the Fluid Inlet connector
(17).

3. Position the Yoke at right angles
to the Gun with the Cam lever to
the front (see picture). Make sure
the vent hole in the lid is
positioned under the Yoke and
the hole in the diaphragm is 180°
to the Lid vent hole.

9. The pattern size can be reduced

by turning adjusting valve (5)
clockwise.

10. Hold gun perpendicular to surface

being sprayed. Arcing or tilting
may result in uneven coating.

11. The recommended spray distance

is 150-200 mm (6”-8”).

12. Spray edges first. Overlap each

stroke a minimum of 50%. Move
gun at a constant speed.

13. 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.

© 2007 ITW Finishing Systems and Products

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Preventative Maintenance

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1. Turn off air and coating supply
and relieve pressure in the
supply lines, or if using QD
system, disconnect from airline.

2. Release Cup and raise the tube
out of the material. Trigger the
Gun and allow material to drain
back into the cup.

3. Dispose of the surplus material
and clean the cup. Do not use
sharp metalic tools to clean the
cup they will damage the PTFE/
anodising surface.

4. Remove air cap (1) and clean. If

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) 17­20 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

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 (2) 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.

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
ITW Finishing UK Website:

www.itweuropeanfinishing.com

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

Accessories

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© 2007 ITW Finishing Systems and Products