PatternPro Variable Pitch Guns.pdf - 第44页

40 P/N 1048257_03  2018 Nordson Corporation PatternPro Edition 02/18 Replacing the Rotating Disk and Applicator Module WARNING: System or material pressurized. Relieve pressure. Failure to observe this warning may resul…

P/N 1048257_03

 2018 Nordson Corporation

PatternPro

Edition 02/18

Replacing a RTD or Heater (contd)

To replace the RTD

a. Disconnect the ground lead from the applicator body and remove the

cordset.

b. Install a new cordset and insert the RTD in the applicator body by

tightening the screws.

c. Reconnect the ground lead to the applicator body.

To replace the heater

a. If necessary, trim the leads of the new heater to match the leads of

the old heater.

b. Insert the heater in the applicator body.

c. Insert each heater lead into the terminal block and tighten the terminal

block screws.

d. Insert the heater leads from the cordset into the terminal block and

tighten the terminal block screws.

8. Check the internal applicator wiring for signs of damage and the terminal

block connections for tightness.

9. Reinstall the applicator body cover, by reinstalling and tightening the four

Allen head screws.

10. If the hose was removed earlier, use two wrenches to connect the hose to

the applicator.

11. Plug the applicator cordset into the hose.

12. Restore the system to normal operation.

P/N 1048257_03

 2018 Nordson Corporation

PatternPro

Edition 02/18

Replacing the Rotating Disk and Applicator Module

WARNING: System or material pressurized. Relieve pressure. Failure to

observe this warning may result in serious injury.

1. De‐energize the system and relieve system pressure. Refer to Safety.

2. Place a drain pan under the nozzles and trigger the applicator modules to

relieve any system pressure which may have accumulated.

3. If applicable, remove the nozzle from the applicator module.

See Figure 13.

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

applicator body to remove rotating disk with O‐rings, and applicator

module

8659493

Fig. 13 Replacing the Rotating Disk and applicator Modules

1 Hexagon head screws

2 Applicator body

3 Disk cavity

4 O‐rings

5 O‐rings

6 Rotating disks

7 Mounting screws

8 Applicator modules

9 Back up rings

P/N 1048257_03

 2018 Nordson Corporation

PatternPro

Edition 02/18

Replacing the Rotating Disk and Applicator Module (contd)

CAUTION: Specific to MiniBlue II, and ClassicBlue applicators.

Do not allow hot melt material to enter the module air passages. Adhesive in

the air passages will obstruct the flow of air and damage the module. If hot

melt material enters the air passages, temporarily place the applicator into

operation, shield the operator, and then trigger the applicator to expel the hot

melt from the air passages.

5. Carefully remove any residual hot melt material from the module, rotating

disk, and the disk cavities.

6. Install the new O‐rings. Lubricate the O‐rings and rotating disk with

heat‐resisting lubricant. Check the position of the back up rings(1.)

relative to the o-rings (2) carefully.

12 21

Fig. 14 Position of O-and back up rings.

7. Apply anti‐seize compound to the module mounting screws, then install

the module on the applicator body.

8. Reattach the mounting screws. Tighten to 3.4 Nm (30 in.‐lb).

9. Tighten the hexagon head screws.

10. If applicable, install the old nozzle or a new replacement nozzle. Tighten

the nozzle to 4.5 Nm (40 in.‐lb).

11. If the hose was removed earlier, use two wrenches to connect the hose to

the applicator.

12. Plug the applicator cordset into the hose.

13. Restore the system to normal operation.