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Model A7AA Air Assisted Airless Gun

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2000 Nordson Corporation

All rights reserved

108 046C

Issued 1/00

Manual 4-20

0420007A

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Fig. 6 A7AA Airless Gun

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Содержание A7AA

Страница 1: ...Model A7AA Air Assisted Airless Gun Customer Product Manual Part 108 046C NORDSON CORPORATION AMHERST OHIO USA OBSOLETE...

Страница 2: ...ge without the prior written consent of Nordson Corporation The information contained in this publication is subject to change without notice Trademarks Blue Box Can Works Century CleanSleeve CleanSpr...

Страница 3: ...genated Hydrocarbon Solvent Hazards 5 Action in the Event of a Malfunction 5 Disposal 5 2 Description 6 Theory of Operation 7 3 Installation 8 Quick Exhaust Valve 11 4 Operation 12 Shutdown 12 5 Maint...

Страница 4: ...le of Contents ii 2000 Nordson Corporation All rights reserved 108 046C Issued 1 00 Manual 4 20 9 Options 19 Nozzles and Air Cap 19 Equipment 20 10 Specifications 21 Dimensions 21 Weight 21 Pressures...

Страница 5: ...d tasks They are familiar with all relevant safety rules and regulations and are physically capable of performing their assigned tasks Use of Nordson equipment in ways other than those described in th...

Страница 6: ...vicing electrical equipment While operating manual spray guns make sure you are grounded Wear electrically conductive gloves or a grounding strap connected to the gun handle or other true earth ground...

Страница 7: ...ell the doctor that you suspect an injection injury Show him this card Tell him what kind of material you were spraying MEDICAL ALERT AIRLESS SPRAY WOUNDS NOTE TO PHYSICIAN Injection in the skin is a...

Страница 8: ...monitoring and limiting devices are working properly Provide adequate ventilation to prevent dangerous concentrations of volatile particles or vapors Refer to local codes or your material MSDS for gu...

Страница 9: ...Bromine Br Bromo Iodine I Iodo Check your material MSDS or contact your material supplier for more information If you must use halogenated hydrocarbon solvents contact your Nordson representative for...

Страница 10: ...tainless steel for corrosion resistance The A7AA can be used for dead end or circulating applications It is also suitable for use in heated systems up to 92 C 200 F or ambient fluid systems Due to its...

Страница 11: ...the nozzle 6 where it is partially atomized As the coating material exits the nozzle the material stream is further atomized by the assist air which flows around the nozzle When the air pressure is r...

Страница 12: ...mage to the gun body 1 Connect a 1 2 20 JIC coupled airless fluid hose to the 1 2 20 JIC fluid fittings 4 Material will flow in either direction 2 Connect a pneumatic hose to carry clean regulated air...

Страница 13: ...Assisted Airless Gun 9 2000 Nordson Corporation All rights reserved 108 046C Issued 1 00 Manual 4 20 0420003A 2 3 1 4 Fig 3 Installation of A7AA Guns 1 Gun body 2 Square head screw 3 Street elbow 4 F...

Страница 14: ...part of a larger spraying system A typical installation is show in Figure 4 0420004A 1 9 3 4 6 7 8 10 13 12 11 5 MAIN AIR ASSIST AIR 2 Fig 4 Typical A7AA Installation 1 Pump 2 Ball valves 3 Heaters 4...

Страница 15: ...t several guns can be fired by the same solenoid This requires using a quick exhaust valve and two air sources When using this option the actuation air must be constant but may be from any convenient...

Страница 16: ...shutdown the system 1 Turn off power to the controller 2 Turn off air and material to the system WARNING System or material pressurized Relieve pressure Failure to observe this warning may result in...

Страница 17: ...ll and seat 2 Leaking through exhaust holes in gun body directly behind fittings Worn packing cartridge Replace packing cartridge and seal kit 3 Spitting Dirty or worn ball tip or seat Clean or replac...

Страница 18: ...be removed by removing two fillister head screws 9 This allows the gun to be removed from the mounting block 13 4 Remove the four screws 1 5 Lift the air cylinder cover 2 and spring 3 from the air cy...

Страница 19: ...d separately The Description column gives the part name as well as its dimensions and other characteristics when appropriate Indentions show the relationships between assemblies subassemblies and part...

Страница 20: ...male 1 4 tube x 1 8 NPT brass 2 12 103 752 Housing air cylinder 1 13 153 158 Block mounting 1 14 981 405 Screw square set 3 8 16 x 0 750 cup zinc 1 15 103 724 Gasket 1 75 square x 0 015 thick 1 16 103...

Страница 21: ...Assisted Airless Gun 17 2000 Nordson Corporation All rights reserved 108 046C Issued 1 00 Manual 4 20 0420007A 1 2 3 4 6 5 7 8 9 10 11 11 14 12 13 15 17 18 19 20 22 16 17 19 24 23 25 26 27 21 Fig 6 A7...

Страница 22: ...0 O ring Hotpaint 0 250 x 0 375 x 0 063 in 1 See Figure 6 Item Part Description Quantity Note 103 726 Service kit ball tip with seat 1 19 940 150 O ring Hotpaint 0 563 x 0 688 x 0 063 in 2 22 103 722...

Страница 23: ...the substrate Part Description 123 601 Nozzle x cut 0 03 08 123 602 Nozzle x cut 0 04 10 123 603 Nozzle x cut 0 06 08 123 604 Nozzle x cut 0 06 10 123 605 Nozzle x cut 0 06 12 123 606 Nozzle x cut 0...

Страница 24: ...eel 244 777 Circulation valve 244 778 Circulation valve stainless steel 094 000 Nozzle broach 0 003 in 094 002 Nozzle broach 0 006 in 901 262 Air exhaust valve 901 028 Quick exhaust air release valve...

Страница 25: ...0 Nordson Corporation All rights reserved 108 046C Issued 1 00 Manual 4 20 Specifications for the A7AA gun are listed below See Figure 7 0420008A 7 62 cm 10 16 cm 4 in 14 73 cm 5 8 in 3 in Fig 7 Syste...

Страница 26: ...dson Corporation All rights reserved 108 046C Issued 1 00 Manual 4 20 1400 grams 3 09 lbs Air pressures are listed below Air Minimum Maximum Trigger 276 kpa 40 psi 758 kpa 110 psi Assist 0 758 kpa 110...

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