11
MEG® II Airless Spray Guns with 10 ft Cable
© 2021 Nordson Corporation
1602990-12
Troubleshooting
Problem Possible Cause Corrective Action
1. Applicator fails to
trigger
Poor electrical
connections
Check the electrical connections.
Seat retainer nut too tight
Bad solenoid coil
Disconnect the applicator wiring and check the coil resistance
with an ohmmeter. Reading should be about 2 ohms. Replace
the coil if the resistance check fails. Use the Body with Coil
Service Kit listed on page 25 or the MEG II Reduced Cavity
Module Service Kit listed on page 24 to replace the coil.
Blown fuse
See Figure 3.
Check the fuse. If the fuse is blown, a lamp on the fuse holder
with an ohmmeter. Replace the fuse if blown.
Bad gun module Replace the gun module.
2. Fluid spits or leaks
from nozzle
Dirty or worn ball and seat
Loosen the seat retainer nut and remove the seat. Clean and
inspect the seat and ball. Replace them if they are worn or
damaged. Use the Ball and Seat Service Kit listed on page 25.
3. Fluid leaks around
nozzle nut.
Damaged or worn O-ring
Replace the nozzle nut and nozzle. Replace the O-ring in the
seat face.
Loose nozzle nut
4. Fluid leaks from
manifold
Damaged or worn
O-rings
Remove the upper manifold from the lower manifold. Replace
the upper manifold O-rings. Replacement O-rings are available
separately or as part of the Soft Goods Service Kit on page 26.
5. Spray weight
increases
Loose or broken
diaphragm spring on
armature assembly
Replace either the armature spring or the entire armature
assembly. Use either the Armature Spring Kit on page 28 or the
Ball and Seat Service Kit listed on page 25.
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