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Flexseam Dispensing System 27 Part 1127900_01 E 2019 Nordson Corporation Maintenance This section contains a recommended maintenance schedule and procedures. Attempting any other maintenance procedures can result in equi…

Flexseam Dispensing System

Part 1127900_01

E 2019 Nordson Corporation

Long‐Term Shutdown

1. Place a large collection pan under the applicator.

WARNING! Risk of burns. When the last drops of adhesive are being

purged, the pressurized air will cause some adhesive spray. Ensure that the

collection pan is large enough to shield the operator from the spray.

2. Place the controller purge switch in the on position until all adhesive is

dispensed from the syringe/cartridge, then place the switch in the off

position.

3. Flexseam applicator only

a. Open the applicator cap, and without putting pressure on the syringe

remove the air cap.

b. Use a pick to remove any hardened adhesive from the syringe.

c. Install the air cap and close the latch.

4. Remove the applicator nozzle and purge again to ensure that all

adhesive is dispensed.

CAUTION! Ensure that the flushing material is compatible with the PUR

adhesive being used. Refer to the SDS for both the adhesive and the flushing

material.

5. Load a flush syringe/cartridge into the applicator.

6. Purge again until a clean flow of flush material is achieved. Leave some

flush material in the syringe/cartridge.

7. Reinstall the nozzle and purge the system again to flush all PUR

adhesive out of the nozzle. Leave some flush material in the

syringe/cartridge.

8. Turn off the air supply.

9. Turn off the controller.

10. Turn off the robot.

Flexseam Dispensing System

Part 1127900_01

E 2019 Nordson Corporation

Maintenance

This section contains a recommended maintenance schedule and

procedures. Attempting any other maintenance procedures can result in

equipment damage, improper system operation, or personal injury.

Recommended Maintenance Schedule

Table 4 provides recommended maintenance activities and a schedule for

performing those activities. Base how often you perform maintenance on

your operating conditions.

Table 4 Recommended Maintenance

Component Activity Interval Procedure

Robot and

applicator

Inspect for

external damage

Daily When damaged parts pose a risk to

the operational safety of the unit

and/or safety of personnel, switch off

the system and have the damaged

parts replaced by qualified personnel.

Use only original Nordson spare parts.

Clean the exterior Daily Remove adhesive residue only with a

cleaning agent recommended by the

adhesive supplier. Heat with an air

heater if necessary.

Remove dust, flakes, etc. with a

vacuum cleaner or a soft cloth.

Do not damage or remove warning

labels. Replace any damaged or

removed warning labels.

Replace the air

supply desiccant

tube

When all material inside

the tube has turned pink

Relieve system pressure (refer to

System Pressure Relief in this section)

and replace the used desiccant tube,

ensuring that all fittings are secure.

Refer to Parts for the replacement

desiccant tube part number.

Air pressure regulator

Flexseam Dispensing System

Part 1127900_01

E 2019 Nordson Corporation

System Pressure Relief

System pressure must be relieved before you can safely proceed with many

troubleshooting and service‐related activities. Follow this procedure

whenever you need to relieve system pressure.

WARNING! Risk of burns. Failure to relieve system pressure can cause hot

material to spray from a connecting point. Relieve system pressure before

loosening or removing a hose, module, or any other part of a hot melt system.

Wear heat‐protective clothing, safety goggles (ANSI Z87.1 or equivalent),

and safety gloves.

1. Shut off the main air supply or set the air pressure regulator to zero (0).

2. Momentarily activate the purge switch on the controller.

3. When the service activity is completed, restore the system to normal

operation.