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Nordson MEG II - User Manual

Nordson MEG II
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MEG
®
II Airless Spray
Guns with 10 ft Cable
Customer Product Manual
Document Number 1602990-12
Issued 12/21
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.
NORDSON CORPORATION • AMHERST, OHIO • USA

Table of Contents

Questions and Answers

  • N
    Nathan AndrewsAug 6, 2025
    What to do if my Nordson Paint Sprayer applicator fails to trigger?
    • V
      Victoria PatelAug 6, 2025
      If your Nordson Paint Sprayer applicator fails to trigger, there are several potential causes. First, check the electrical connections to ensure they are secure. If the connections are good, the seat retainer nut might be too tight; loosen it and retighten to 10-12 ft-lb (14-16 N?m). A bad solenoid coil could also be the issue; disconnect the applicator wiring and check the coil resistance with an ohmmeter (it should read about 2 ohms, replace the coil if the resistance check fails). Check the fuse. If the fuse is blown, a lamp on the fuse holder will flash as the gun is triggered. Remove the fuse and check it with an ohmmeter. Replace the fuse if blown. Finally, a bad gun module can cause this problem, in that case you should replace the gun module.
  • B
    Barry SmithAug 11, 2025
    Why is fluid leaking around the nozzle nut of my Nordson MEG II Paint Sprayer?
    • J
      Jeffrey DuranAug 11, 2025
      If fluid is leaking around the nozzle nut of your Nordson Paint Sprayer, it could be due to a damaged or worn O-ring. Replace the nozzle nut and nozzle, and also replace the O-ring in the seat face. Another possible cause is a loose nozzle nut; tighten it to 10-12 ft-lb (14-16 N?m).
  • M
    Mrs. Rhonda DavisAug 17, 2025
    What to do if fluid spits or leaks from the nozzle of my Nordson MEG II?
    • S
      Susan MartinAug 17, 2025
      If fluid spits or leaks from the nozzle of your Nordson Paint Sprayer, the ball and seat might be dirty or worn. Loosen the seat retainer nut and remove the seat to clean and inspect the seat and ball. If they are worn or damaged, replace them.
  • A
    Aaron GutierrezAug 25, 2025
    Why is fluid leaking from the manifold of my Nordson MEG II?
    • J
      Jason BrownAug 25, 2025
      If fluid is leaking from the manifold of your Nordson Paint Sprayer, it is likely due to damaged or worn O-rings. Remove the upper manifold from the lower manifold and replace the upper manifold O-rings.
  • D
    Dawn FowlerAug 30, 2025
    How to fix spray weight increase in Nordson MEG II?
    • A
      alvarezjeffreyAug 30, 2025
      If the spray weight increases in your Nordson Paint Sprayer, it may be due to a loose or broken diaphragm spring on the armature assembly. Replace either the armature spring or the entire armature assembly.

Summary

Safety

Introduction to Safety Instructions

Read and follow safety instructions. Ensure all documentation is accessible to users.

Qualified Personnel Requirements

Ensure equipment is installed, operated, and serviced by trained, capable personnel familiar with safety rules.

Intended Use Guidelines

Use equipment only as described in documentation to prevent injury or property damage.

Regulations and Approvals

Verify equipment is rated for its environment; non-compliance voids approvals.

Personal Safety Precautions

Follow safety instructions to prevent injury, including grounding and avoiding metallic objects.

High-Pressure Fluids Hazards

Handle high-pressure fluids with extreme caution; injection can cause severe injury or death.

Medical Alert for Spray Wounds

Provides medical guidance for injection injuries, emphasizing immediate surgical treatment.

Fire Safety Instructions

Follow instructions to prevent fire and explosion, including grounding and proper ventilation.

Halogenated Hydrocarbon Solvent Hazards

Avoid using halogenated solvents with aluminum components due to explosion risk.

Action in Case of Malfunction

Shut down immediately, disconnect power, relieve pressure, and identify/correct the cause.

Disposal Procedures

Dispose of equipment and materials according to local codes.

Description of MEG II Spray Guns

MEG II Gun Components Overview

Overview of MEG II gun features, including reduced cavity and extended tip variants for metal cans.

Installation of MEG II Spray Guns

Mounting the Spray Gun

Instructions for mounting the MEG II gun on a spray machine mounting plate.

Fluid Connections

Details on connecting fluid inlet and outlet hoses, and pressure relief requirements.

Electrical Connections for MEG II Guns

Special Conditions for Safe Electrical Use

Guidelines for protecting electrical conduit and using fuse blocks for safe operation.

Electrical Connection Steps

Step-by-step guide for connecting the gun's electrical conduit to junction boxes and terminal blocks.

Pressure Transducer Installation

CO-Plate Installation

Operation of MEG II Spray Guns

Troubleshooting Common Issues

Repair Procedures for MEG II Guns

Ball and Seat Replacement

Detailed steps for replacing the ball and seat assembly, including necessary tools and parts.

Gun Module Replacement

Procedure for replacing the gun module, ensuring proper alignment and torque.

Upper Manifold O-Ring Replacement

Instructions for replacing O-rings in the upper manifold, covering removal and installation.

Parts Identification and Ordering

Using the Illustrated Parts List

Explanation of how to read and interpret the illustrated parts lists for ordering components.

Special Tools

Tools Not Included with MEG II Guns

Lists special tools not shipped with the MEG II guns, such as armature assembly tools.

Service Kits for MEG II Applicators

MEG II Reduced Cavity Module Service Kit

Details the contents of the service kit for MEG II reduced cavity modules.

Ball and Seat Service Kit

Lists parts included in the ball and seat service kit for MEG II guns.

Body with Coil Service Kit

Identifies components within the service kit for the MEG II body with coil.

Soft Goods Service Kit

Details the soft goods service kit, including various O-rings for MEG II guns.

PTFE O-Ring Kit

Contents of the PTFE O-ring kit, used as an alternative for certain applications.

Armature Spring Kit

Lists parts included in the armature spring kit for MEG II guns.

Optional Equipment and Accessories

90 Degree Cable Routing Fitting Kit

Description of the 90-degree fitting kit for routing gun cables and hoses.

CleanSleeve Cover Information

Information on CleanSleeve covers for protecting the spray gun.

Nozzle Wrench Details

Details on available nozzle wrenches, including standard and multipurpose types.

Pressure Transducer for iTrax Systems

Details on the pressure transducer used with iTrax spray monitor systems.

CO-Plate Selection Chart

Technical Specifications

Ratings and Label Information

EU Declaration of Conformity

UK Declaration of Conformity

0-1000 PSI Pressure Transducer and Amplifier

Description of Transducer Assembly

Overview of the pressure transducer and amplifier assembly for iTrax spray monitors.

Transducer and Amplifier Specifications

Technical specifications for the 0-1000 PSI pressure transducer and amplifier.

Calibration Procedures

Guidance on calibration procedures and recommendations for the pressure transducer assembly.

Amplifier Installation

Instructions for installing the amplifier, including mounting dimensions.

Gun Connections for Transducer

Steps for connecting the pressure transducer to the spray gun manifold.

Spray Monitor Connections

Wiring guide for connecting the pressure transducer assembly to spray monitors.

Transducer Troubleshooting

Pinout information and troubleshooting steps for armored cable and cordset connections.

Parts for Transducer Assembly

List of parts for the transducer assembly, including the transducer and O-ring.

Nordson MEG II Specifications

General IconGeneral
BrandNordson
ModelMEG II
CategoryPaint Sprayer
LanguageEnglish

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