Nordson A7A Customer Product Manual Download Page 1

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A7A Single and Dual Modular

Automatic Airless Spray Guns

Customer Product Manual

Part 1072609- 02

Issued 8/18

NORDSON CORPORATION



AMHERST, OHIO



USA

For parts and technical support, call the Industrial Coating

Systems Customer Support Center at (800) 433-9319 or

contact your local Nordson representative.

This document is subject to change without notice.

Check http://emanuals.nordson.com for the latest version.

Summary of Contents for A7A

Page 1: ...d 8 18 NORDSON CORPORATION AMHERST OHIO USA For parts and technical support call the Industrial Coating Systems Customer Support Center at 800 433 9319 or contact your local Nordson representative Thi...

Page 2: ...arts 14 Options 16 Service Kits 16 Service Parts 16 Contact Us Nordson Corporation welcomes requests for information comments and inquiries about its products General information about Nordson can be...

Page 3: ...Change Record i Part 1072609 02 E 2018 Nordson Corporation Change Record Revision Date Change 02 8 18 Added ATEX marking data to Specifications table...

Page 4: ...Change Record ii Part 1072609 02 E 2018 Nordson Corporation...

Page 5: ...perating equipment in excess of maximum ratings Regulations and Approvals Make sure all equipment is rated and approved for the environment in which it is used Any approvals obtained for Nordson equip...

Page 6: ...S Tell him what kind of material you were spraying MEDICAL ALERT AIRLESS SPRAY WOUNDS NOTE TO PHYSICIAN Injection in the skin is a serious traumatic injury It is important to treat the injury surgical...

Page 7: ...information and advice Halogenated Hydrocarbon Solvent Hazards Do not use halogenated hydrocarbon solvents in a pressurized system that contains aluminum components Under pressure these solvents can...

Page 8: ...ect nozzle for your application contact your Nordson representative SINGLE DUAL Gun Module Manifold Gun Module Manifolds Figure 1 A7A Modular Spray Guns Specifications Properties Specification Maximum...

Page 9: ...ut The packing cartridge stem connects the piston to the ball tip When the gun is triggered on air pressure pushes against the bottom of the piston lifting the ball tip away from the seat and allowing...

Page 10: ...Slide a 13 mm 1 2 in round mounting bar through the hole in the manifold orient the gun as desired and tighten the square head screw Fluid Connections WARNING In the fluid supply line install an appro...

Page 11: ...sible Cause Corrective Action 1 Leaking around nozzle or nozzle retaining nut Dirty or damaged nozzle or seat sealing surfaces Tighten the nozzle nut If the leak persists relieve system pressure Remov...

Page 12: ...on 1 Clean the wetted parts with a compatible cleaning solution 2 Inspect the ball tip and seat If either are worn or damaged replace both The ball tip and seat are a matched set and only sold as a ki...

Page 13: ...e 1 on the manifold 17 and tighten the screws 15 securely 2 1 4 5 6 7 8A 8B 8C 9 10 11 11A 12A 13 14 15 16 18 17 19 20 3 8 12 12B 12C Apply VC 3 thread locking compound to threads before installing ba...

Page 14: ...O ring 13 seat retainer 14 seat 12B and small O ring 15 from the manifold Cleaning and Inspection 1 Clean the wetted parts with a compatible cleaning solution 2 The ball tips and seats are matched se...

Page 15: ...en thread the nozzle nut onto the manifold and tighten it securely 4 Install the module 1 on the manifolds 23 and tighten the screws 21 securely 2 4 5 6 7 8A 8B 8C 9 10 3 8 11 11A 12A 12B 13 14 15 16...

Page 16: ...S S O RING Viton black 0 562 x 0 688 in 1 A B 10 S S BODY gun 1 A 11 1039171 S S CARTRIDGE packing protective coating 1 A 11A 940134 S S S O RING Viton 0 438 x 0 563 x 0 063 in 1 A 12 S S BALL TIP and...

Page 17: ...2A 13 14 15 16 18 17 19 20 3 8 12 12B 12C Apply VC 3 thread locking compound to threads before installing ball tip Apply VC 3 thread locking compound to threads before tightening Apply pipe thread adh...

Page 18: ...L TIP 1 D 12B S S S SEAT 1 D 13 940174 S S O RING Viton black 0 688 x 0 813 in 2 A B 14 134975 S S RETAINER seat A7A 2 A 15 940105 S S O RING PTFE 0 250 x 0 375 x 0 06 in 2 A B 16 S S MANIFOLD A7A dua...

Page 19: ...21 Apply VC 3 thread locking compound to threads before installing ball tip Apply VC 3 thread locking compound to threads before tightening Apply pipe thread adhesive sealant Loctite High Temp SS567 o...

Page 20: ...Nipple steel schedule 40 1 8 in NPT 0 75 in long A NOTE A Use to install quick exhaust valve Service Kits Part Description Note 1072408 SERVICE KIT Rebuild Modular A7A Guns A 320031 KIT Ball and Seat...

Page 21: ...2016 Principles This product has been manufactured according to good engineering practice The product specified conforms to the directive and standards described above Flammable Atmosphere Marking Ex...

Page 22: ...3031 Gasket 342279 Spring 702118 Lock Nut 138737 Piston Assembly 940157 O Ring 1039171 Packing Cartridge 320031 Ball and Seat Kit 152496 Nozzle Nut 940105 O Ring 940174 O Ring 1056459 Module Service K...

Page 23: ...0105 O Ring 1039171 Packing Cartridge 940174 O Ring 320019 Ball and Seat 940105 O Ring 152496 Nozzle Nut 1059498 Module Service Kit 2005 Nordson Corporation 1072609 QR Service Kits and Parts A7A Modul...

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