PatternPro Variable Pitch Guns.pdf - 第28页

24 P/N 1048257_03  2018 Nordson Corporation PatternPro Edition 02/18 For all Applicators except zero and reduced cavity applicators a. Ensure that all nozzles are removed. b. Dispense hot melt material from the applicat…

P/N 1048257_03

 2018 Nordson Corporation

PatternPro

Edition 02/18

Flushing the Applicator

Before operating the system, the applicator must be flushed to remove

residue left over from factory‐testing. Install the nozzles after this procedure.

For information on installing nozzles, refer to Maintenance.

NOTE: This equipment is factory tested with Nordson Type R fluid

containing polyester adipate plasticizer. Certain adhesives may react with the

Type R fluid residue to form a solid gum that can be difficult to remove.

Consult with the adhesive supplier to determine the compatibility of the

adhesive with Type R fluid.

1. Disconnect or turn off the solenoid valve triggering device.

2. Turn on the melter and allow it to reach operating temperature. Refer to

the melter manual for the startup procedure.

3. Place a drain pan under all applicators.

4. Flush according to the type of applicator module being used:

For standard Applicators

a. Dispense hot melt material from the applicator by manually triggering

the solenoid valve(s).

b. Stop dispensing when the flow of hot melt material is clear and free of

residue.

P/N 1048257_03

 2018 Nordson Corporation

PatternPro

Edition 02/18

For all Applicators except zero and reduced cavity applicators

a. Ensure that all nozzles are removed.

b. Dispense hot melt material from the applicator by manually triggering

the solenoid valve(s).

c. Stop dispensing when the flow of hot melt material is clear and free of

residue.

For zero and reduced cavity Applicators

a. Relieve system hydraulic pressure and disable the applicator. Refer

to Safety.

b. Remove the applicator module by removing the two mounting screws

from the front of the module.

c. Re‐pressurize the system; then place the applicator into operation.

d. Dispense hot melt material from the port(s) in the applicator body,

increasing the pump output in small increments.

e. Stop dispensing when the hot melt material is clear and free of

residue.

5. Check for leaks between the applicator, hose, and melter.

6. Do one of the following:

 Continue to the next procedure, Pivoting the applicator Modules.

 Install the nozzles, refer to Maintenance.

P/N 1048257_03

 2018 Nordson Corporation

PatternPro

Edition 02/18

Pivoting the Applicator Modules

Before operating the system, pivot the applicator module to the required

position for application of variable pitch patterns.

NOTE: The applicators have typically pivot marks on the rotating disk that

are spaced in increments of 5. The reference marks are also provided on

the rotating disk.

1. Relieve the system hydraulic pressure. Refer to Safety.

1 Pivot marks

2 Reference marks

Fig. 8 Marks on the MiniBlue ll applicators

CAUTION: Do not pivot the the applicator modules if the applicator is cold.

Pivoting the applicator modules when the applicator is not heated will

damage the O‐rings.

Fig. 9

WARNING: System pressurized! Relieve system pressure before adjusting

the applicator. Failure to relieve system pressure can result in personal

injury.

2. Loosen the two hexagon head screws located on the back of the

applicator body.

3. Pivot the applicator modules to the desired position.

4. Tighten the hexagon head screws.