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Operation Manual: 

AGN-502 AUTOMATIC GUN

Important:

Read and follow all instructions and SAFETY PRECAUTIONS

before using this equipment

A lightweight diaphragm operated automatic spray gun for use with ceramic glaze, vitreous enamels, liquid polishing
compounds and similar materials. The standard gun fitted with a rubber diaphragm is not suitable for use with solvent based
coating materials, however it can be converted for use with solvent based coating materials by fitting a PTFE protective
diaphragm see Accessories. Nozzles are available in high grade stainless steel and case hardened Nitralloy steel.

Remotely positioned valves (supplied by user) control the air supplies for atomisation and diaphragm operation. Coating
material supply is by a pressure feed system.

IMPORTANT:

These guns are not designed for use with highly corrosive or highly abrasive coating material and if used with

such materials it must be expected that the need for thorough cleaning and/or the necessity for replacement parts will be
increased. If there is any doubt regarding the suitability of a specific material, advise what material is to be used and/or submit
a sample for test. 

AGN-502 Spray gun fitted with fan air control valve.

For ordering information see chart 1 for the selection of air cap and nozzle combinations. Add thread code for the hose
connection thread required. 

Example:

HOSE CONNECTIONS

Thread code

‘B’

‘N’

Air supply Atomising:

1

/

4

" BSP

1

/

4

" NPS

Diaphragm:

6mm push-in tube connector

6mm push-in tube connector

Coating material supply:

3

/

8

" BSP

3

’/

8

" NPS

MAXIMUM RECOMMENDED WORKING PRESSURES

Atomising air supply

: P

1

=7 bar (100 lbf/in

2

)

Diaphragm air supply

: P

3

=7 bar (100 lbf/in

2

)

Coating material supply

: P

2

=6 bar (87 lbf/in

2

)

Air consumption:

see chart 1

Weight:

560g. 

SPECIFICATIONS

MODELS

DESCRIPTION

SB-E-2- 660-D

© ITW LTD 1994

Summary of Contents for AGN-502

Page 1: ...d for use with highly corrosive or highly abrasive coating material and if used with such materials it must be expected that the need for thorough cleaning and or the necessity for replacement parts will be increased If there is any doubt regarding the suitability of a specific material advise what material is to be used and or submit a sample for test AGN 502 Spray gun fitted with fan air control...

Page 2: ...2 ITW LTD 1994 SB E 2 660 Figure 1 Figure 2 ...

Page 3: ... 2 1 765 AV 4239 765 X X X X X X 547 4 8 777 AV 4239 777 X X X X 674 4 8 797 AV 4239 797 X X X X 680 4 8 880 MB 4039 880 X X 346 3 4 Ref Order No Description Qty 9 SSF 4272 K6 Screw 6 10 SST 8434 K5 Circlip 1 11 JGS 143 1 Body 1 12 SSG 8069 K5 0 ring 1 13 AGN 403 Valve Body 1 14 PA H 2008 Connector 1 4 BSP 1 H 2008 Connector 1 4 NPS 15 PA H 1580 Connector 3 8 BSP 1 H 1580 A Connector 3 8 NPS NOZZL...

Page 4: ...e type of respiratory protective equipment used must be compatible with the material being sprayed and the level of concentration Always wear eye protection when spraying or cleaning the equipment Gloves must be worn for spraying or cleaning the equipment when certain coating materials and solvents are used Personnel should be given adequate training in the safe use and maintenance of this equipme...

Page 5: ...p to 10 metres long Atomising air supply 8mm 5 16 internal diameter Coating material supply 9 5mm 3 8 internal diameter The AGN gun operation is different to models that have a needle valve to control the coating material flow To shut coating material flow off air pressure must be maintained on the diaphragm 6 to seal against seat 5 To prevent coating material leaks from the nozzle the regulated d...

Page 6: ...m 35 lbf in Note Protective diaphragm AGN 8 see accessories is fitted between the gun body and the rubber diaphragm 6 to prevent solvent based coating material contacting the rubber diaphragm O RING 12 Turn screw 13 counter clockwise and unscrew valve body 11 Remove parts 10 13 and 12 Replace 0 ring 12 and reassemble in reverse order Turn screw 13 counter clockwise before fitting valve assembly to...

Page 7: ... Insufficient material in tank cup or 1 Fill tank cup or clear obstruction an obstruction in the hose 2 Gun material passage blocked 2 Clean 3 Worn seal 4 3 Replace 4 Loose or damaged nozzle 4 Tighten or replace G 1 Incorrect air pressure on diaphragm 1 Increase air pressure to at leased 0 5 bar 8 lbf in 2 above coating material pressure 2 Seat 5 dirty or worn 2 Clean or replace 3 Damaged or worn ...

Page 8: ...elex No 41213 Telefax No 01202 581940 ITW Oberflächentechnik GmbH Justus von Liebig Straße 31 63128 Dietzenbach Tel 0 60 74 403 1 Telex 4 191 533 Telefax 0 60 74 403300 ITW Surfaces Et Finitions 163 171 avenue des Auréats B P 1453 26014 VALENCE CEDEX FRANCE Tél 33 75 75 27 00 Télex 345 719F DVILBIS 8 ...

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