User guide

AccuJet

Dispenser

E1998 Nordson Corporation

107 142B

Issued 4/98

Manual 12-34

Disassembly

1.See Figure 3. Turn the micro-adjust cap (1) 4 to 5 turns

counterclockwise.

2.Use the spanner wrench to loosen the locking nut (3). Turn the

preload screw (2) to relieve compression on the spring.

3.Use the

-in. hex key to remove the screws (6) securing the

heater(5) and the seat extension (9) to the lower body (4). Separate

the extension from the heater. Either discard the O-ring (10) or wipe

it with a towel.

4.Use the screwdriver to remove the screws (14) from the

lowerbody(4). Carefully pull the lower body off of the needle (13).

5.Remove the O-ring (11) which holds the seal in place. Clean the

O-ring with a solvent or replace it.

6.If adhesive on the needle is within 0.25 mm (0.1 in.) of the

upperbody(17),

Sreplace the U-cup seal (12)

Sinspect the needle (13) for excessive wear and replace if

necessary

7.Remove the purge screw (15) and syringe connector (16) from the

lower body (4).

8.Use a cotton swab to remove excess adhesive from the

Sseat extension (9)

Slower body (4)

Ssyringe connector (16)

Use a cotton swab and the recommended solvent for the adhesive to

clean these parts. Clean the parts in a solvent bath and ultrasonic

cleaner.

9.Wipe the needle (13) and purge screw (15) with a solvent-soaked

disposable towel.

10.Use an air gun to blow excess adhesive from the dispenser fluid

paths into a disposable towel.

11.Clean the dispenser with solvent in ultra-sonic cleaner or by flushing.

12.Inspect the parts to ensure they are solvent and adhesive-free.