DeVilbiss JGA-614FWH-186B User Manual

SB-E-2-252-I

Operation Manual

JGA – Suction Feed Spraygun

E

E

P 2 - 8

1 © ITW Ltd 2001

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Operation Manual

JGA – Suction Feed Spraygun

Important

Read and follow all instructions and Safety Precautions before using this

equipment

Description

The JGA Suction Feed Spraygun Kit is suitable for use with most solvent
based coating materials. Nozzles and Needles are available in Stainless
Steel.

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: JGA-614FWH-186B

Kit Number

Fluid Tip Size

Nozzle Material

H = 303 Stainless

Aircap No

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.

B. Holt, General Manager

2 © ITW Ltd 2001

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

The use of respiratory protective
equipment is recommended at all

times. The type of equipment
must be compatible with the material
being sprayed

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

Always wear eye protection when
spraying or cleaning the spraygun

3 © ITW Ltd 2001

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Ref. No Description Part Number Qty

1 Air Cap/Retaining ring See Chart 1 1

1a Spring Clip - Kit of 5 JGA-156-K5 1

+*2 Nozzle AV-645-** 1

3 Baffle & Seal JGD-402-K 1

+3a

+4 Packing GTI-439-K2 1

5 Spreader Valve GTI-405-K 1

6 Stud and Screw GTI-408-K5 1

+7 Needle See Chart 2 1

+8 Spring - Kit of 5 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 JGS-108-1 1

13 Connector JGA-158 1

14 Airflow Valve GTI-415-K 1

15 Lock Nut - Kit of 5 JGA-51-K5 1

16 Seal 23165-001 1

17 Fluid Inlet Connector and seal JGA-159-K 1

18 Fluid Tube KR-456-B 1

19 Yoke KR-77-1 1

20 Washer - kit of 5 KS-48-K5 2

21 Cam KR-130 1

22 Washer - Kit of 5 KR-40-K5 1

23 Lid Gasket - kit of 3 KR-11-K3 1

24 Nut - kit of 5 KR-94-K5 1

25 Drip free diaphragm—kit of 5 KR-115-K5 1

26 Cup KR-466-K 1

27 Cup lid assembly KR-4001-B 1

28 Cup and Lid assembly Kit KR-566-1-B 1

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

30 Circlip - Kit of 5 SST-8434-K5 2

31 Circlip - Kit of 5 25746-007-K5 1

+32 Seal - Kit of 5 JGS-72-K5 2

33 Spanner SPN-5 1

34 Air valve stem assembly JGS-431-1 1

35 Spring JGV-262-K5 1

* - ** Denotes Nozzle Size - see chart 1 below for available sizes
+ - Parts included in service Kit KK-4502 (see accessories)

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

Parts List

4 © ITW Ltd 2001

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Chart 1. Aircap and Nozzle Size combinations

Aircap

No

30 AV-4239-30 X X X

43 AV-4239-43 X X X

80 MB-4039-80 X X X

186 AV-4239-186 X X X

Aircap Part

Number

FW

1.6

FF

1.4

EX

1.8

Chart 2. Nozzle and Needle Combinations

Nozzle

Size

FW JGA-421-FF

Nozzle Order

Number

AV-645 FW

FF JGA-421-FF

EX JGA-421-EX

AV-645-FF

AV-645-EX

Needle Order

Number

Specification

Air supply connection - Universal 1/4 BSP and NPS
Fluid Supply Connection - Universal
Maximum static inlet pressure - P

Maximum static fluid pressure -
Gun Weight - 695 g
Cup Weight - 460g

Materials of Construction

Gun body - Polished Aluminium
Nozzle - Stainless Steel
Needle - Stainless Steel
Cup - Aluminium with Brass Nickel plated pins
Lid Assembly - Aluminium, Brass and Steel Nickel plated
Cup Lid Gasket - Polyethylene
Diaphragm - Polyethylene

5 © ITW Ltd 2001

1

P1 = 14 bar (203 psi)

3

= 9 bar (130 psi)

/8 BSP and NPS

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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

3.5 bar (50psi) 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 (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 (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.

6 © ITW Ltd 2001

Preventative Maintenance

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1. Turn off air 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.

4. 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

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.

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.

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.

Accessories

Cleaning Brush – order 4900-5-1-K3
Service Kit – order KK-4502 add nozzle size as required-

(i.e. KK-4502-FF-H)

Seal Kit - order KK-4558. Contains 3a, 4, 29, 30, 32
Pressure gauge Attachment – order GA-515
Gun Mounted Regulator – order DVR-501
Lubricant - order GL-1-K10

7 © ITW Ltd 2001

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 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

8 © ITW Ltd 2001

January 03