Nordson MEG® II Reduced Cavity and Extended Tip Airless Spray Guns Owner's Manual

MEG II Airless Spray Guns

(Reduced Cavity and Extended Tip)

Customer Product Manual

Part 334669-1

5

Issued 12/19

For parts and technical support, call the

Finishing Customer Support Center at (800) 433-9319.

NORDSON CORPORATION • AMHERST, OHIO • USA

Table of Contents

Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Qualified Personnel

Intended Use

Personal Safety

. . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Regulations and Approvals . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

High-Pressure Fluids

Fire Safety

. . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Halogenated Hydrocarbon Solvent Hazards

. . . . . . . . . . .

.

Action in the Event of a Malfunction

Disposal

Description

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4

4

5

Installation 6

3

4

2

2

1

1

1

1

Mounting

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fluid Connections . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical Connections . . . . . . . . . . . . . . . . . . . . . . .

Special Conditions for Safe Use . . . . . . . . . . .

7

7

6

6

Connections 7

Nozzle and CleanSleeve r Cover

Pressure Transducers

CO-Plate

Operation

. . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Ball and Seat Replacement

Gun Module Replacement

. . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . .

Upper Manifold O-Ring Replacement . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9

9

8

9

Troubleshooting 10

Repair 11

Removal

11

13

15

15

Installation 15

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Using the Illustrated Parts List

Standard Gun Parts

Reduced Cavity Gun Parts

. . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . .

17

18

Extended Tip Gun Parts

Special Tools

. . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Not Included with the MEG II Guns

Service Kits

Module Service Kits

. . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . .

Ball and Seat Service Kits

Body with Coil Service Kit

Soft Goods Service Kit

. . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . .

PTFE O-Ring Kit

Armature Spring Kit

Optional Equipment

. . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . .

90 Degree Cable Routing Fitting Kit . . . . . . .

. . . . . . . . . . . . . . . . . . . . . .

CleanSleeve Cover

Nozzle Wrench . . . . . . . . . . . . . . . . . . . . . . . . . .

Pressure Transducers . . . . . . . . . . . . . . . . . . . .

CO-Plate Selection Chart . . . . . . . . . . . . . . . . .

26

27

27

27

28

24

25

25

26

23

23

24

24

20

21

23

23

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Ratings and Label Information . . . . . . . . . . . . . . . .

29

30

OBSOLETE

Contact Us

Nordson Corporation welcomes requests for information, comments, and inquiries about its products. General information about Nordson can be found on the Internet using the following address: http://www.nordson.com.

Address all correspondence to:

Nordson Corporation

Attn: Customer Service

555 Jackson Street

Amherst, OH 44001

Notice

This is a Nordson Corporation publication which is protected by copyright.

Original copyright date 2000. No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of Nordson Corporation. The information contained in this publication is subject to change without notice.

Trademarks

CanWorks, CleanSleeve, MEG, Nordson, and the Nordson logo are registered trademarks of Nordson Corporation.

All other trademarks are the property of their respective owners.

Part 334669-1 5 E 2019 Nordson Corporation

Change Record

i

Revision

09

10

11

12

13

14

1 5

Date

07/16

04/17

04/18

12/19

12/19

12/19

0 3 / 21

Change Record

Change

Updated Parts section for Special Tools.

Updated description for 940077 in Soft Goods Service Kit in Parts section.

Update Ball and Seat Replacement procedure.

Added multipurpose nozzle wrench.

Added reusable CleanSleeve cover.

Update to multipurpose nozzle wrench.

Obsolete -- Replaced by 1602990

OBSOLETE

Part 334669-1 5

E 2019 Nordson Corporation

OBSOLETE

ii

Change Record

Part 334669-1 5

OBSOLETE


MEG r II Airless Spray Guns

1

MEG

r

II Airless Spray Guns

Safety

Read and follow these safety instructions. Task- and equipment-specific warnings, cautions, and instructions are included in equipment documentation where appropriate.

Make sure all equipment documentation, including these instructions, is accessible to persons operating or servicing equipment.

Qualified Personnel

Equipment owners are responsible for making sure that Nordson equipment is installed, operated, and serviced by qualified personnel. Qualified personnel are those employees or contractors who are trained to safely perform their assigned tasks. They are familiar with all relevant safety rules and regulations and are physically capable of performing their assigned tasks.

Intended Use

Use of Nordson equipment in ways other than those described in the documentation supplied with the equipment may result in injury to persons or damage to property.

Some examples of unintended use of equipment include

S

S

S

OBSOLETE

S using incompatible or damaged parts

S using unapproved auxiliary equipment

S operating 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 equipment will be voided if instructions for installation, operation, and service are not followed.

Part 334669-1 5


2


Personal Safety

To prevent injury follow these instructions.

S Do not operate or service equipment unless you are qualified.

S Do not operate equipment unless safety guards, doors, or covers are intact and automatic interlocks are operating properly. Do not bypass or disarm any safety devices.

S Keep clear of moving equipment. Before adjusting or servicing moving equipment, shut off the power supply and wait until the equipment comes to a complete stop. Lock out power and secure the equipment to prevent unexpected movement.

S Relieve (bleed off) hydraulic and pneumatic pressure before adjusting or servicing pressurized systems or components. Disconnect, lock out, and tag switches before servicing electrical equipment.

S 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. Do not wear or carry metallic objects such as jewelry or tools.

S If you receive even a slight electrical shock, shut down all electrical or electrostatic equipment immediately. Do not restart the equipment until the problem has been identified and corrected.

S Obtain and read Safety Data Sheets (SDS) for all materials used.

Follow the manufacturer’s instructions for safe handling and use of materials, and use recommended personal protection devices.

S Make sure the spray area is adequately ventilated.

S To prevent injury, be aware of less-obvious dangers in the workplace that often cannot be completely eliminated, such as hot surfaces, sharp edges, energized electrical circuits, and moving parts that cannot be enclosed or otherwise guarded for practical reasons.

High-Pressure Fluids

OBSOLETE skin can also cause toxic poisoning.

If you suffer a fluid injection injury, seek medical care immediately. If possible, provide a copy of the SDS for the injected fluid to the health care provider.

The National Spray Equipment Manufacturers Association has created a wallet card that you should carry when you are operating high-pressure spray equipment. These cards are supplied with your equipment. The following is the text of this card:


Fire Safety


3

WARNING: Any injury caused by high pressure liquid can be serious. If you are injured or even suspect an injury:

S Go to an emergency room immediately.

S Tell the doctor that you suspect an injection injury.

S Show him this card

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 surgically as soon as possible. Do not delay treatment to research toxicity. Toxicity is a concern with some exotic coatings injected directly into the bloodstream.

Consultation with a plastic surgeon or a reconstructive hand surgeon may be advisable.

The seriousness of the wound depends on where the injury is on the body, whether the substance hit something on its way in and deflected causing more damage, and many other variables including skin microflora residing in the paint or gun which are blasted into the wound. If the injected paint contains acrylic latex and titanium dioxide that damage the tissue’s resistance to infection, bacterial growth will flourish. The treatment that doctors recommend for an injection injury to the hand includes immediate decompression of the closed vascular compartments of the hand to release the underlying tissue distended by the injected paint, judicious wound debridement, and immediate antibiotic treatment.

To avoid a fire or explosion, follow these instructions.

S Ground all conductive equipment. Use only grounded air and fluid

S

OBSOLETE and corrected.

S Do not smoke, weld, grind, or use open flames where flammable materials are being used or stored.

S Do not heat materials to temperatures above those recommended by the manufacturer. Make sure heat monitoring and limiting devices are working properly.

S Provide adequate ventilation to prevent dangerous concentrations of volatile particles or vapors. Refer to local codes or your material SDS for guidance.

S Do not disconnect live electrical circuits when working with flammable materials. Shut off power at a disconnect switch first to prevent sparking.

Part 334669-1 5


4


Fire Safety

(contd)

S Know where emergency stop buttons, shutoff valves, and fire extinguishers are located. If a fire starts in a spray booth, immediately shut off the spray system and exhaust fans.

S Shut off electrostatic power and ground the charging system before adjusting, cleaning, or repairing electrostatic equipment.

S Clean, maintain, test, and repair equipment according to the instructions in your equipment documentation.

S Use only replacement parts that are designed for use with original equipment. Contact your Nordson representative for parts 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 react with aluminum and explode, causing injury, death, or property damage.

Halogenated hydrocarbon solvents contain one or more of the following elements:

Element

Fluorine

Chlorine

Bromine

Iodine

Symbol

F

Cl

Br

I

Prefix

“Fluoro-”

“Chloro-”

“Bromo-”

“Iodo-”

Check your material SDS or contact your material supplier for more information. If you must use halogenated hydrocarbon solvents, contact your Nordson representative for information about compatible Nordson components.

OBSOLETE

S Disconnect and lock out system electrical power. Close hydraulic and pneumatic shutoff valves and relieve pressures.

S Identify the reason for the malfunction and correct it before restarting the system.

Disposal

Dispose of equipment and materials used in operation and servicing according to local codes.


Description


5

See Figure 1. This manual covers the MEG II spray guns, including the

reduced cavity and the extended tip versions. The standard version was obsoleted in 2007. These guns are high-speed airless spray guns used to apply water- and solvent-based coatings to the interior surfaces of metal cans.

NOTE: The MEG II gun is approved for solvent-based materials when using approved drivers. To meet approvals, the fuse and fuse holder supplied with the MEG II gun must be installed.

The MEG II gun can be used with the iTrax spray system, which offers advanced spray system control and monitoring.

The MEG II gun features:

S special internal coil and armature assembly for cooler gun operation

S online-replaceable gun module (1), consisting of ball, seat, and coil

S online-replaceable ball and seat

S 1 /

2

-20 37 _ JIC fittings (3) for fluid in and out connections

S 1 /

4

-in. liquid-tight electrical conduit (4), 142 cm (56 in.) long

Two or three MEG II guns can be positioned in a spray pocket for zone-spray applications. The MEG II gun can be installed on existing spray machine mounting plates that use these Nordson guns:

S A20A

S A10A

S A14A

Refer to Specifications

on page 29 for technical data and label information.

Extended Tip version

2

4

118

0

1

Reduced Cavity version

3

Figure 1 MEG II Gun Components (Top View)

1. Gun module

2. Manifold

3.

1 /

2

-20 37 _ JIC fittings 4. Electrical conduit


Part 334669-1 5

6


Installation

WARNING: Allow only qualified personnel to perform the following tasks.

Follow the safety instructions in this document and all other related documentation.

Mounting

See Figure 2.

Mount the MEG II gun on the mounting plate, using the two holes in the manifold base.

S If you are replacing an A10A, A14A, or A20A spray gun, remove it and use the two socket-head screws (1) shipped with the MEG II gun to secure it to the existing mounting plate.

S If your system does not use any of these spray guns, refer to

Specifications

on page 29 for mounting dimensions.

Fluid Connections

NOTE: An approved pressure relief device set at 90 bar (1300 psi) must be installed in the system fluid supply line. The fluid hoses must have a minimum burst pressure of 207 bar (3000 psi).

See Figure 2. Connect the fluid inlet and outlet hoses to the fluid fittings (7).

Either fitting may be used for the inlet. The fittings are 1 /

2

-20 37 _ JIC.

6

8

7

Figure 2 Installation

1. Socket-head screws

2. Gun

3. Seat O-ring

4. Nozzle

1

2 OBSOLETE

10

9

5. Nozzle nut

6. Electrical conduit

7. Fluid fittings

3 4 5

8. Ground cable and clamp

9. Pressure transducer plugs and

O-rings

10. CO plate plug and O-ring



7

Electrical Connections

WARNING: Use a driver/trigger device which meets the electrical requirements listed in this manual. Using an improper driver/trigger device may result in damage to the gun and/or driver/trigger device. Contact your

Nordson representative for more information.

Special Conditions for Safe Use

SGS Baseefa

The electrical conduit wire leads must be suitably protected against mechanical damage and terminated within a terminal or junction box suitable for the conditions of use. The fuse block and 1 amp fuse must be used as shown below.

Connections

See Figure 3.

1. Connect the gun’s electrical conduit to a customer-supplied junction box (5) with the lock nut (6) and seal ring (7).

2. Connect the gun wires from the electrical conduit to a customer-supplied terminal block (3) as shown.

WARNING: If using the MEG II gun with solvent-based coating materials, you must install the fuse and fuse holder to the gun coil circuit. Failure to observe this warning could result in personal injury or property damage.

3. If using the MEG II gun with solvent-based coating materials, install the fuse holder and 1 amp fuse shipped with the spray gun on the terminal block and connect one of the black coil wires to the fuse holder.

4. Connect customer-supplied wiring (2) from the terminal block and fuse OBSOLETE continuity before putting the gun into service.

5. Connect the ground clamp on the end of the braided ground cable (9) to a true earth ground.

Part 334669-1 5


8


1

CH 1 CH 2

9

3

2

8

5

7

6

(BLACK)

(BLACK)

(GRN/YEL)

Wire Color

Black

Green/Yellow

Function

Coil

Ground

4

Figure 3 Electrical Connections

1. MEG driver or customer-supplied driver

2. Customer-supplied wires

3. Customer-supplied terminal block

4. Fuse holder and 1 amp fuse

(optional, refer to Note below)

5. Customer-supplied junction box

6. Lock nut

7. Seal ring

8. MEG II gun

9. Ground cable

Note: Fuse holder and 1 amp fuse must be installed if using solvent-based materials.

Refer to warning and step 3 on following page.

Nozzle and CleanSleeve

r

Cover

1. See Figure 2. Remove the nozzle nut (5) from the spray gun (2).

2. Verify that the seat O-ring (3) is installed into the groove in the end of

OBSOLETE

3. Insert a nozzle (4) into the nozzle nut.

4. Thread the nozzle nut onto the spray gun and tighten it securely with the optional nozzle wrench to 20 − 27 N S m (15 − 20 ft-lb). Do not overtighten the nut.

5. If desired, install a CleanSleeve cover on the spray gun.



9

Pressure Transducers

When the MEG II gun is installed as part of a iTrax spray monitor system, install a pressure transducer in the gun manifold to monitor fluid pressure at the gun. Refer to Pressure Transducers

on page 27 for transducer ordering

information.

See Figure 2. Remove a plug and O-ring (9) from one side of the manifold

and replace it with a pressure transducer. The port on either side of the manifold can be used. Tighten the transducer securely.

CO-Plate

When the MEG II gun is installed as part of a iTrax spray monitor system, install a CO-plate in the gun manifold to produce a controlled pressure drop when the gun is spraying. Refer to the CO-Plate Selection Chart on page

28 for CO-plate ordering information.

See Figure 2. Remove the plug and O-ring (10) from the front of the MEG

gun and install a CO-plate in the manifold. Tighten the CO-plate securely.

Operation



WARNING: This equipment can be dangerous unless it is used in accordance with the rules laid down in the manual.

Operation of the MEG II gun is dependent upon the timer with which it is used. Refer to your timer manual for operation procedures.

OBSOLETE

The MEG II gun is designed for high-cycle applications. When flushing the system, do not trigger ON the spray gun for more than 5 seconds.

Part 334669-1 5


10


Troubleshooting



This section contains troubleshooting procedures. These procedures cover only the most common problems that you may encounter. If you cannot solve the problem with the information given here, contact your local

Nordson representative for help.

Problem

1. Gun fails to trigger

Possible Cause

Poor electrical connections

Seat retainer nut too tight

Bad solenoid coil

Blown fuse

Corrective Action

Check the electrical connections.

Loosen the seat retainer nut and tighten it to 7 − 14 N • m (5 − 10 ft-lb).

Disconnect the coil wires at the

terminal block (see Figure 3) and

check the coil resistance with an ohmmeter. Reading should be about

2 ohms. Replace the gun body if the resistance check fails. Use the Body with Coil Service Kit .

See Figure 3. Check the fuse (4). If

the fuse is blown, a lamp on the fuse holder will flash as the gun is triggered. Remove the fuse from the fuse holder and check it with an ohmmeter. Replace the fuse if blown.

2. Fluid spits or leaks from nozzle

3. Fluid leaks around nozzle nut

4. Fluid leaks from lower manifold

Bad gun module Replace the gun module.

Dirty or worn ball and seat OBSOLETE

Loose nozzle nut

Loosen the seat retainer nut and remove the seat. Clean and inspect the seat and ball. Replace them if they are worn or damaged. Use the

Ball and Seat Service Kit

Remove the nozzle nut and nozzle.

Replace the O-ring in the seat face.

Tighten nozzle nut to 20 − 27 N S m

(15 − 20 ft-lb).

Damaged or worn O-rings Remove the upper manifold from the lower manifold. Replace the upper manifold O-rings. Replacement

O-rings are available separately or as part of the Soft Goods Service Kit .

5. Spray weight increases

Loose or broken diaphragm spring on armature assembly

Replace either the armature spring or the entire armature assembly. Use either the Armature Spring Kit or the

Ball and Seat Service Kit .



11

Repair



Ball and Seat Replacement

WARNING: Relieve system fluid pressure and shut off system electrical power before performing the following procedure. Failure to do so could result in personal injury.

NOTE: The ball and seat can be replaced without removing the gun from the spray machine.

Have the following at hand:

S ball and seat service kit

S petroleum jelly (do not use O-ring lube)

The ball and seat service kit is shipped assembled. It consists of the

S seat

S seat O-rings

S spacer

S armature assembly

NOTE: Inspect all O-rings and replace any that are damaged. Lubricate all

O-rings with petroleum jelly before assembly. The soft goods service kit listed in Parts includes all O-rings used in the MEG gun, or they can be ordered separately. An alternate PTFE O-ring can be used in the seat instead of the standard EPR O-ring.

See Figure 4.

OBSOLETE seat (4) assembly snaps out.

4. Remove the seat (4), spacer (2), and armature assembly (3) from the the gun module.

5. Clean the O-ring sealing surface on the inside diameter of the gun module.

Part 334669-1 5


12


6. Lubricate the new seat O-rings with petroleum jelly.

7. Install the new spacer, armature, and seat (2, 3, and 4) into the end of the body.

a. Fit the body pins into the pin sockets in the seat.

b. Make sure the spring tab is engaged in slot of seat holder.

c. Use a wrench to twist along the flats on the seat and push in toward module body to install the ball and seat assembly.

NOTE: The pin sockets in the seat are arranged so you can rotate the seat in 45 _ increments. Each time you install the seat, rotate it one increment to even out wear on the face of the coil body.

8. Slide the seat retainer nut forward and thread it onto the seat. Tighten the seat retainer nut to 6.8

− 13.5 N • m (5 − 10 ft-lb).

9. Insert the nozzle into the nozzle nut. Thread the nozzle nut onto the seat and tighten it securely with the optional nozzle wrench to 20 − 27

N S m (15 − 20 ft-lb). Do not overtighten the nut.

Extended Tip Gun: Make sure you use the flats on the extended seat to tighten the nozzle nut with the wrench. Do not overtighten the nut.

10. If used, install a CleanSleeve cover onto the spray gun.

3

1

2

6

Extended Tip parts

Figure 4 Ball and Seat Replacement

1. Seat retainer nut

2. Spacer

3. Armature assembly

4. Seat

5. Nozzle

6. Nozzle nut



13

Gun Module Replacement


NOTE: The gun module can be replaced without removing the gun from the spray machine.


S module service kit


The module service kit is shipped assembled . It consists of the

S gun module

S gun module O-ring

S seat

S seat O-rings

S spacer

S armature assembly

S nozzle nut

S seat retainer nut


O-rings with petroleum jelly before assembly. The soft goods service kit listed in Parts includes all O-rings used in the MEG gun, or they can be ordered separately.

1. See Figure 5. If used, remove the CleanSleeve cover from the spray

gun.

2. Remove the nozzle nut (7) and nozzle (6).

3. Loosen the set screw (1) on the gun module nut (2).

4. Unscrew the gun module nut. Carefully pull the gun module (4) out of the gun.

5. Lubricate the gun module O-ring (3) with petroleum jelly.

OBSOLETE

6. Carefully install the new gun module, fitting the pins into the pin sockets in the upper manifold. Tighten the gun module nut to 27 − 34 N • m

(20 − 25 ft-lb).

7. Tighten the set screw on the gun module nut.

Part 334669-1 5


14


8. Lubricate the O-ring (5) in the seat face with petroleum jelly.

9. Insert the nozzle into the nozzle nut. Thread the nozzle nut onto the spray gun and tighten it securely with the optional nozzle wrench to

20 − 27 N S m (15 − 20 ft-lb). Do not overtighten the nut.

Extended Tip Gun: Make sure you use the flats on the extended seat to tighten the nozzle nut with the wrench. Do not overtighten the nut.

10. If used, install a CleanSleeve cover.

1

2

3

4

5

6

7

Extended Tip part

Figure 5 Gun Module Replacement

1. Set screw

OBSOLETE

2. Gun module nut

3. O-ring

5. O-ring

6. Nozzle

7. Nozzle nut



15

Upper Manifold O-Ring Replacement



S replacement O-rings



O-rings with petroleum jelly before assembly. The soft goods service kit listed in Parts includes all O-rings used in the MEG gun, or they can be ordered separately.

Removal

See Figure 6.

1. Make sure all pressure is relieved and electrical power is removed from the system.

2. Remove the MEG II gun from the spray machine.

3. Loosen the set screw (13) and the gun module nut (12). Carefully pull the gun module (6) out of the gun.

4. Disconnect the gun wiring from the terminal block and fuse holder, if used.

5. Unscrew the connector gland nut (8) from the connector body (9).

6. Unscrew the connector body and manifold lock nut (10) from the upper manifold (3).

7. Loosen the stop screw (14).

8. Press on the back of the upper manifold to push it out of the lower OBSOLETE lock nut and lower manifold.

9. Slide the gun module nut off the upper manifold.

10. Remove and discard the O-rings (1, 4, 5).

Installation

1. See Figure 6. Lubricate the new O-rings (1, 4, 5) with petroleum jelly

and install them onto the upper manifold (3).

2. Slide the gun module nut (12) toward the front of the upper manifold until it hits the manifold shoulder.

Part 334669-1 5


16


NOTE: If you pulled the upper manifold wires out of the conduit and lower manifold, thread the wires through the lower manifold (11), the manifold lock nut (10), and the conduit (7) before you insert the upper manifold into the lower manifold.

3. Align the upper manifold so the stop screw (14) will go into the hole (2) when tightened. Insert the upper manifold into the lower manifold.

Make sure that the wrench flats on the upper manifold are positioned as shown.

4. Tighten the stop screw.

5. Thread the manifold lock nut onto the upper manifold and tighten it securely.

6. Thread the connector body (9) into the upper manifold and tighten it securely.

7. Thread the gland nut (8) onto the connector body and tighten it securely.

8. Carefully install the gun module (6), fitting the pins into the pin sockets in the upper manifold.

9. Thread the gun module nut onto the gun module. Tighten the nut to 27 − 34 N • m (20 − 25 ft-lb).

10. Tighten the set screw (13).

11. Connect the wiring to the terminal block and fuse holder, if used.

7 8

9

10

11

13

14

1

2 WRENCH FLATS

12

5

6

Figure 6 Upper Manifold O-ring Replacement

1. O-rings

2. Upper manifold groove

3. Upper manifold

4. O-ring

5. O-ring

6. Gun module

7. Electrical conduit

8. Gland nut

9. Connector body

10. Manifold lock nut

Part 33466915

11. Lower manifold

12. Gun module nut

13. Set screw

14. Stop screw



17

Parts

To order parts, call the Nordson Finishing Customer Support Center at

(800) 433-9319 or contact your local Nordson representative. Use the parts lists and illustrations to locate and order parts.

Using the Illustrated Parts List

Numbers in the Item column correspond to numbers that identify parts in illustrations following each parts list. The code NS (not shown) indicates that a listed part is not illustrated. A dash (—) is used when the part number applies to all parts in the illustration.

The number in the Part column is the Nordson Corporation part number. A series of dashes in this column (- - - - - -) means the part cannot be ordered 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 parts.

S If you order the assembly, items 1 and 2 will be included.

S If you order item 1, item 2 will be included.

S If you order item 2, you will receive item 2 only.

The number in the Quantity column is the quantity required per unit, assembly, or subassembly. The code AR (As Required) is used if the part number is a bulk item ordered in quantities or if the quantity per assembly depends on the product version or model.

Letters in the Note column refer to notes at the end of each parts list. Notes contain important information about usage and ordering. Special attention should be given to notes.

Item

—

1

2

Part

0000000

000000

000000

Assembly

S Subassembly

S S Part

Quantity

1

2

1

Note

A


Part 334669-1 5

18


Standard Gun Parts

Standard gun 344003 is obsolete and no longer sold. Use this parts list to order available service parts. To replace an entire gun, order a reduced cavity MEG II gun.

See Figure 7 and the following parts list.

15

32

31

30

29

11

14

13

12

23

10

9

18

21

22

8

7

6

1

5

4

3

2

20

25

28

27

26

21 17

22

21

22

MEG II REDUCED CAVITY GUN UPPER MANIFOLD SHOWN.

Figure 7 Standard and Reduced Cavity MEG II Spray Gun Parts



19

Item

—

Part

344003

Description

GUN ASSEMBLY, MEG II, (OBSOLETE)

Quantity

1

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

- - - - - -

237401

945067

- - - - - -

339047

- - - - - -

237399

1014709

- - - - - -

940176

343995

940077

340263

- - - - - -

941163

982290

343999

1060502

945064

972013

S MODULE, MEG II

S S NUT, nozzle

S S O-RING, EPR, 0.375 x 0.50 x 0.063 in.

S S SEAT, MEG

S S O-RING, EPR, 0.375 x 0.875 x 0.063 in.

S S ARMATURE ASSEMBLY, MEG II

S S SPACER

S S NUT, seat retainer

S S BODY, MEG II

S S O-RING, EPR, 0.688 x 0.813 x 0.063 in.

S MANIFOLD, upper, MEG II

S S O-RING, EPR, 0.156 x 0.281 x 0.063 in.

S S O-RING, EPR, 0.188 x 0.312 x 0.063 in.

S S MANIFOLD, upper, potted

S S O-RING, EPR, 0.625 x 0.75 x 0.063 in.

S SCREW, set, cup, M4 x 4, stainless steel

S NUT, gun module, MEG II

S MANIFOLD assembly, lower

S S O-RING, EPR, thread

5 /

16

-in. tube

S S CONNECTOR, 37 hyd, 1 /

2

− 20, straight

21

22

23

24

25

26

27

945087

324172

243632

237035

343991

983047

983403

S S O-RING, EPR, 3 /

16

-in. tube

S S PLUG, MEG

S NUT, lock, manifold

S SCREW, stop, M6

S CLAMP, ground, with wire

S WASHER, flat, M4, stainless steel

S WASHER, lock, M, split, M4, steel, zinc

28

29

30

31

32

NS

NS

NS

NS

340264

179416

972239

955063

984200

247646

981893

945067

1008326

S SCREW, socket, M4 x 5, steel, zinc

S

S CONNECTOR, /

4

-in. conduit x 1 /

4

S RING, sealing, 1 /

4

in.

S NUT, lock, 1 /

4

in.

S

S

CONDUIT, liquid tight,

1

1 /

4

x 56 in.

-in. NPT OBSOLETE

S O-RING, EPR, 0.375 x 0.50 x 0.063 in.

S FUSE HOLDER, 5 x 20, screw cap, DIN 35

1

2

1

1

1

2

10

1

1

NS 239213 S FUSE, 1A, slo-blo, 250V, 5 x 20 mm 2

NOTE A: These parts are included in part 1062094 Service Kit, Module, MEG II, Reduced Cavity.

3

3

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

2

1

1

1

2

2

B: These parts are included in part 1062095 Service Kit, Ball and Seat, MEG II, Reduced Cavity.

C: These parts are included in part 343993 Service Kit, Body with Coil, MEG II.

D: These parts are included in part 343989 Service Kit, Soft Goods, EPR, MEG.

E: Alternate PTFE O-ring included in part 1073596, Kit, O-ring PTFE, shipped with gun.

NS: Not Shown

Note

A

A

A, B, C, D, E

A, B

A, B, C, D

A, B

A, B

A

A, C

A, C, D

D

D

D

D

D

A

A

Part 334669-1 5


20


Reduced Cavity Gun Parts

See Figure 7. Check your gun part number and use the correct parts list for

your spray gun.

Item

6

7

4

5

8

—

1

2

3

13

14

15

16

9

10

11

12

17

18

19

20

Part

1602877

- - - - - -

237401

945067

- - - - - -

339047

- - - - - -

237399

1014709

- - - - - -

940176

343995

940077

340263

- - - - - -

941163

982290

343999

1060502

945064

972013

Description

GUN ASSEMBLY, MEG II, reduced cavity

S MODULE, MEG II, reduced cavity

S S NUT, nozzle

S S O-RING, EPR, 0.375 x 0.50 x 0.063 in.

S S SEAT, reduced cavity

S S O-RING, EPR, 0.375 x 0.875 x 0.063 in.


S S SPACER


S S BODY, MEG II

S S O-RING, EPR, 0.688 x 0.813 x 0.063 in.


S S O-RING, EPR, 0.156 x 0.281 x 0.063 in.

S S O-RING, EPR, 0.188 x 0.312 x 0.063 in.


S S O-RING, EPR, 0.625 x 0.75 x 0.063 in.





16

-in. tube

S S CONNECTOR, 37 hyd, 1 thread

/

2

− 20, straight

Quantity

1

1

1

1

1

1

1

1

1

21

22

23

24

945087

324172

243632

237035

S S O-RING, EPR, 3

S S PLUG, MEG

/

16

-in. tube


S SCREW, stop, M6

25

26

27

28

29

30

31

32

NS

343991

983047

983403

340264

179416

972239

955063

984200

247646



S

S

S

S

OBSOLETE

S RING, sealing, 1

in.

/

4

in.

S NUT, lock, 1 /

4

S CARD, medical alert, injection

1

1

1

1

1

2

1

1

1

NS

NS

NS

981893

945067

1008326

S SCREW, socket, 10 − 32 x 0.50 in., zinc

S O-RING, EPR, 0.375 x 0.50 x 0.063 in.


2

10

1

NS 239213 S FUSE, 1A, slo-blo, 250V, 5 x 20 mm 2

NOTE A: These parts are included in part 1062094 Service Kit, Module, MEG II, Reduced Cavity.

3

3

1

1

2

1

1

1

1

1

1

1

2

2

1

1

B: These parts are included in part 1062095 Service Kit, Ball and Seat, MEG II, Reduced Cavity.




NS: Not Shown

Note

A

A

A, B, C, D, E

A, B

A, B, C, D

A, B

A, B

A

A, C

A, C, D

D

D

D

D

D

A

A

Part 33466915 E 2019 Nordson Corporation


21

Extended Tip Gun Parts

Figure 8. Check your gun part number and use the correct parts list for your

spray gun.

10

15

32

31

30

29

14

11

13

12

9

8

7

6

1

5

4

2

18

21

22

20

25

28

27

26

19

24

16

Figure 8 Extended Tip MEG II Spray Gun Parts


22

21 21

22

17

Part 334669-1 5

22


Item

—

Part

1076017

Description

GUN ASSEMBLY, MEG II, extended tip

Quantity

1

1

2

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

- - - - - -

237401

- - - - - -

339047

- - - - - -

237399

1014709

- - - - - -

940176

343995

940077

340263

- - - - - -

941163

982290

343999

1060502

945064

972013

S MODULE, MEG II, extended

S S NUT, nozzle

S S SEAT,

S S O-RING, EPR, 0.375 x 0.875 x 0.063 in.


S S SPACER


S S BODY, MEG II

S S O-RING, EPR, 0.688 x 0.813 x 0.063 in.


S S O-RING, EPR, 0.156 x 0.281 x 0.063 in.

S S O-RING, EPR, 0.188 x 0.312 x 0.063 in.


S S O-RING, EPR, 0.625 x 0.75 x 0.063 in.




S S O-RING, EPR, thread

5 /

16

-in. tube

S S CONNECTOR, 37 hyd, 1 /

2

− 20, straight

21

22

23

24

25

26

27

945087

324172

243632

237035

343991

983047

983403


16

-in. tube

S S PLUG, MEG


S SCREW, stop, M6



S WASHER, lock, M, split, M4, steel, zinc

28

29

30

31

32

NS

NS

NS

NS

340264

179416

972239

955063

984200

247646

981893

945067

1008326

S SCREW, socket, M4 x 5, steel, zinc

S CONDUIT, liquid tight,

S CONNECTOR, 1

S

S NUT, lock, 1 /

4

in.

S

S

S

RING, sealing, 1

/

4

/

4

-in. conduit x 1 /

in.

1 /

4

x 56 in.

4

-in. NPT OBSOLETE


S FUSE, 1A, slo-blo, 250V, 5 x 20 mm

2

1

1

1

2

10

1

2

1

1

NOTE A: These parts are included in part 1075291 Service Kit, Module, MEG II, Extended Tip.

NS 239213

3

3

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

2

1

1

1

2

2

B: These parts are included in part 1076115 Service Kit, Ball and Seat, MEG II, Extended Tip.




F: When installing the nozzle nut on the spray gun, make sure you use the flats on the extended seat to tighten the nozzle nut with the wrench. Do not overtighten the nut.

NS: Not Shown

Note

A

A,F

A, B, F

A, B, C, D

A, B

A, B

A

A, C

A, C, D

D

D

D

D

D

A

A



23

Special Tools

Not Included with the MEG II Guns

Part

1046818

152999

901911

901905

NOTE A:

Description

TOOL, armature assembly, spring replacement

WRENCH

WRENCH, adjusting, module

BRUSH

This tool is used with the armature spring kit.

Note

A

Service Kits

The following service kits are available for the MEG II gun. Keep these kits on hand to reduce downtime.

Module Service Kits

Item Part

1062094

1075291

Description

SERVICE KIT, module, MEG II, reduced cavity

SERVICE KIT, module, MEG II, extended tip

Quantity

1

1

1

2

3

4

5

6

- - - - - -

237401

945067

- - - - - -

339047

- - - - - -

S MODULE, MEG II

S S NUT, nozzle

S S O-RING, EPR, 0.375 x 0.500 x 0.063 in.

S S SEAT, MEG

S S O-RING, EPR, 0.375 x 0.875 x 0.063 in.


7

8

9

10

NS

237399

1014709

- - - - - -

940176

247646

NOTE A: See Figure 7.

S S SPACER


S S

S S

S

BODY, MEG II

OBSOLETE

1

1

1

1

1

C: This O-ring is not included with the Extended Tip Module Service kit, part 1075291.

B: See Figure 8.

1

1

1

1

1

1

NS: Not Shown

Note

A

B

C

Part 334669-1 5


24


Ball and Seat Service Kits

See Figures 7 and 8.

Item Part

1062095

3

4

5

6

7

1076115

945067

- - - - - -

339047

- - - - - -

237399

NOTE A: See Figure 7.

Description

SERVICE KIT, ball and seat, MEG II, reduced cavity

SERVICE KIT, ball and seat, MEG II, extended tip

S O-RING, EPR, 0.375 x 0.500 x 0.063 in.

S SEAT, MEG

S O-RING, EPR, 0.375 x 0.875 x 0.063 in.

S ARMATURE ASSEMBLY, MEG II

S SPACER

B: See Figure 8.

C: This O-ring is not used with the MEG II Extended Tip spray gun, part 1076017.

Quantity

1

1

1

1

1

1

1

Body with Coil Service Kit


Item Part Description Quantity

— 343993 SERVICE KIT, body with coil, MEG II

3

5

9

10

945067

339047

- - - - - -

940176

S O-RING, EPR, 0.375 x 0.500 x 0.063 in.

S O-RING, EPR, 0.375 x 0.875 x 0.063 in.

S BODY, MEG II

S O-RING, EPR, 0.688 x 0.813 x 0.063 in.

NOTE A: This O-ring is not used with the MEG II Extended Tip spray gun, part 1076017.

1

1

1

1

1

Note

A

B

C

Note

A


Item

—

Part

343989

Description

SERVICE KIT, soft goods, EPR, MEG

3

5

10

12

945067

339047

940176

940077

S O-RING, EPR, 0.375 x 0.500 x 0.063 in.

S O-RING, EPR, 0.375 x 0.875 x 0.063 in.

S O-RING, EPR, 0.688 x 0.813 x 0.063 in.

S O-RING, EPR, 0.156 x 0.281 x 0.063 in.

13 340263 S O-RING, EPR, 0.188 x 0.312 x 0.063 in.

15

19

941163

945064

S O-RING, EPR, 0.625 x 0.750 x 0.063 in.

S O-RING, EPR,

S O-RING, EPR,

5

3

/

16

-in. tube

21 945087 /

16

-in. tube


Quantity

1

1

2

1

1

2

3

1

1

Note

A


Item

−

3

Part

1073596

940124


25

PTFE O-Ring Kit

See Figure 7. This kit is shipped with the reduced cavity version of the

spray gun. The O-ring replaces the nozzle seat O-ring for certain applications.

NOTE: This kit is not used with the MEG II Extended Tip spray gun, part

1076017 .

Description

KIT, O-ring, PTFE, MEG gun

S O RING,PTFE, 0.375 X 0.50 X 0.06 in.

Quantity

1

5

Note

Armature Spring Kit

See Figure 9. This kit is used with all three versions of the MEG II spray

gun.

Note Item

8

9

NS

6

7

4

5

—

1

2

3

Part

1606337

340263

940077

940176

339047

945067

- - - - - -

- - - - - -

- - - - - -

- - - - - -

900200

Description

KIT, spring, MEG II

S O-RING, EPR, 0.188 x 0.312 x 0.063 in.

S O-RING, EPR, 0.156 x 0.281 x 0.063 in.

S O-RING, EPR, 0.688 x 0.813 x 0.063 in.

S O-RING, EPR, 0.750 x 0.875 x 0.063 in.

S O-RING, EPR, 0.375 x 0.500 x 0.063 in.

S SPRING, flat, 0.0058

S WASHER, Delrin, 0.254 x 0.344 x 0.028 in.

S BUSHING, armature, 1 /

4

-28 thread

S SPACER

S ADHESIVE, threadlocking

TOOL, armature assembly NS 1046818


B: The armature assembly tool must be ordered separately.

NS: Not Shown

OBSOLETE

1

Quantity

1

1

1

1

1

1

1

1

1

1

1

A

B

Part 334669-1 5


26


1

2

3

9

6

7

8

4

5

Extended

Tip Parts

Figure 9 Armature Spring Kit

Optional Equipment

Item

—

1

2

3

4

5

Part

1609137

945064

- - - - - -

972367

- - - - - -

973141

90 Degree Cable Routing Fitting Kit

The 90 degree fitting kit is used as a mechanism to route gun hoses and cables to the appropriate location.

Note Description

KIT, fittings, 90 degree routing, MEG II gun

S O-RING, EPR, 5 /

16

-in. tube

S FITTING, strain, ½ − 20 M x ½ − 20 F

S

S

S

OBSOLETE

1

2 1

2

1

2

1

1

3

1

Quantity

4 5

Leave on gun

3

Figure 10 90 Degree Cable Routing Fitting Kit

Part 334669-1 5

Removed from the gun

10015057



27

CleanSleeve Covers

Part Description

149237

1618384

COVER, CleanSleeve, mini, 500 pieces

KIT, cover, CleanSleeve, MEG r gun, slip fit, 12 pieces

NOTE A: Single-use cover.

B: Reusable cover.

C: Includes a total of 500 CleanSleeve covers, in 20 packs of 25.

D: Works on MEG II reduced cavity spray guns

Note

A, C, D

B, D

Nozzle Wrench

Part Description

163945

1618632

WRENCH, nozzle

KIT, wrench, nozzle, multipurpose

NOTE A: Used specifically for tapered container nozzles and CleanSpray nozzles.

Note

A

B

B: Used for the following nozzles: tapered, cross-cut, minimum cavity, CleanSpray, and short press-in.

Additional features include 16 mm (5/8-in) width and 19 mm (3/4-in) width for checking nozzle to can cut edge distance. Ruler markings included in mm scale to help with additional can dimension setup.

Nozzle Wrench Multipurpose Nozzle Wrench

Figure 11 Nozzle Wrenches

Part

771220

333055

Pressure Transducers

Use pressure transducers with the iTrax spray monitor system.

OBSOLETE

Note

Part 334669-1 5


28


CO-Plate Selection Chart

Use CO-plates with the iTrax spray monitor system. Contact your Nordson representative for more information on CO-plates for your application.

Nozzle

Size

0.015

0.030

0.040

0.060

0.075

0.090

0.120

0.140

13.8

(200)

[0 − 500 ]

337987

(015)

337988

(020)

337990

(030)

337991

(040)

337992

(050)

337993

(060)

337995

(090)

337996

(105)

[0

20.7

(300)

− 500]

337987

(015)

337990

(030)

337991

(040)

337993

(060)

337994

(075)

337994

(075)

337996

(105)

337997

(120)

[0

Table 1 CO-Plate Selection Chart

Spray Pressure bar

(psi)

[Spring Range]

27

(400)

− 500]

337988

(020)

337991

(040)

337992

(050)

337994

(075)

337995

(090)

337995

(090)

337998

(140)

337998

(140)

[0 −

34

(500)

800]

337989

(025)

337991

(040)

337993

(060)

337994

(075)

337996

(105)

337996

(105)

337999

(160)

338000

(200)

[0

41

(600)

− 800]

337989

(025)

337992

(050)

337993

(060)

337995

(090)

337997

(120)

337998

(140)

338000

(200)

338001

(250)

[0

(700)

−

48

800]

337990

(030)

337992

(050)

337993

(060)

337995

(090)

337997

(120)

337999

(160)

338000

(200)

338002

(300)

[0 −

55

(800)

1500]

337990

(030)

337993

(060)

337994

(075)

337997

(120)

337998

(140)

338000

(200)

338000

(200)

338002

(300)

[0

(900)

−

62

1500]

CO-Plate Part Number → 337987

(015) ← CO-Plate Designation Number on front of CO-Plate

NOTE: Spring range is pressure range of spring used in pressure control system regulator.

337991

(040)

337994

(075)

337995

(090)

337999

(160)

337999

(160)

338000

(200)

338000

(200)

338002

(300)

OBSOLETE

70

(1000)

[0 − 1500]

337991

(040)

337994

(075)

337997

(120)

338000

(200)

338000

(200)

338000

(200)

338001

(250)

338002

(300)


Specifications

Item

Dimensions

Electrical Requirements

Fluid Pressure

Fluid Temperature

Nozzle Flow Rate pH

Viscosity

Weight

Specification

See Figure 12

48 Vdc, 3 amps for 3 msec and 1 amp holding

83 bar (1200 psi)

79 _ C (175 _ F)

0.001

− 0.013 l/sec (0.015

− 0.2 gpm)

6.5

− 8.5

15 − 40 sec with Zahn 2 cup at 21 _ C (70 _ F)

0.75 kg (1.6 lb)


29

27 mm

(1.06 in.)

1180

II 2 G

Mounting Holes

124 mm

(4.87 in.)

9 mm

(0.37 in.) OBSOLETE

146 mm

(5.75 in.)

20 mm

(0.80 in.)

39 mm

(1.54 in.)

Figure 12 Gun Dimensions for Standard and Reduced Cavity Spray Guns

32 mm

(1.28 in.)

Part 334669-1 5


30


1180

27 mm

(1.06 in.)

II 2 G

Mounting Holes

138 mm

(5.43 in.)

164 mm

(6.46 in.)

9 mm

(0.37 in.)

20 mm

(0.80 in.)

39 mm

(1.54 in.)

Figure 13 Gun Dimensions for the Extended Tip Spray Gun

186 mm

(7.32 in.)

Ratings and Label Information

See Figure 14.

NORDSON CORP.

AMHERST, OHIO USA

48 vdc MAX, 1.0 amp MAX

1200 psi (8300kPa) MAX PRESS

175

MEG GUN

OBSOLETE

CLASS I, ZONE 1,

AEx de IIB T3

F M

APPROVED

1180

II

2 G

BAS00ATEX2061X

Ex db eb IIB T3 Gb

Ta = − 20

_

C to + 60

_

C

DO NOT SEPARATE WHEN ENERGIZED

Figure 14 MEG II Gun Label (1610768)

47 mm

(1.85 in.)

32 mm

(1.28 in.)


No results