Product manual

Series B900-N and B900SW-N Manifold Mounted Electric Guns

Part 1041221B

E 2006 Nordson Corporation

Disassemble the Module

See Figure 10.

1. Heat the system to application temperature. The adhesive in the module must be

molten for this procedure.

2. De-energize the system and disable the gun. Refer to Safety.

3. Remove the module on which a component is to be replaced. Refer to Remove a

Module under Replace a Module.

4. Loosen the retaining nut (1).

CAUTION: Failure to back the armature off of the seat may damage both the

seat and armature when the seat is reinstalled.

5. To back the armature off of the seat, turn the coil end of the guide tube counterclockwise

until it stops turning.

6. Pull the coil and housing (2) from module body (6).

7. Remove the seat (12), armature (10), and spring (9).

8. Clamp the module body in a vice.

CAUTION: Do not use pliers to turn the guide tube. Pliers will damage the fine

threads and deform the tube wall.

9. With a screwdriver, turn the guide tube (8) clockwise until it comes loose (about 12

turns).

10. Push down on the top of the guide tube until it can be pulled free from the bottom of the

module body.

11. As needed, clean the module components by placing them in a container of Nordson

Type R fluid heated to 245 _C (475 _F). Allow the components to soak for 10 minutes,

then remove them and blow off excess residue with an air gun or wipe them with a shop

rag.