Trilogy
r
Air-Assisted Airless LT Manual Spray Gun
11
Part 1601052-03
E
2016 Nordson Corporation
Lubrication
See Figure 4. The atomizing air regulator O-ring (11), air valve needle seal
(39), and the trigger axle (13) should be lubricated regularly with
silicone-free oil or silicone-free grease.
Troubleshooting
WARNING:
Allow only qualified personnel to perform the following tasks.
Follow the safety instructions in this document and all other related
documentation.
These troubleshooting procedures cover only the most common problems.
If you cannot solve a problem with the information given here, contact your
local Nordson representative for help. See Figure 4 for parts.
Problem
Possible Cause
Corrective Action
1. Decrease in paint flow
while spraying
Filter clogged.
Clean the filter. Refer to
Filter
Cleaning
on page 10.
Paint viscosity too high.
Thin out the paint to the proper
viscosity.
Fluid pressure too low.
Increase fluid pressure.
2. Irregular fan pattern
Nozzle clogged.
Replace the nozzle.
Filter clogged.
Clean the filter. Refer to
Filter
Cleaning
on page 10.
Nozzle too wide or worn.
Replace the nozzle.
Paint viscosity too high.
Thin out the paint to the proper
viscosity.
No atomizing air, or not enough.
Increase atomizing air flow.
Check air supply.
Atomizing air pressure too high
or too low.
Adjust air supply pressure.
Refer to
Specifications
on page
.5
Air cap holes clogged.
Clean air cap with solvent and a
soft brush. Do not use a wire
brush.
3. Spray gun still sprays when
trigger released
Seal or needle ball worn.
Replace parts (3a, 32).
Needle spring worn.
Replace spring (25).
Packing gland too tight, needle
cannot be moved by spring to
close valve.
Loosen packing gland (29). If
problem continues replace
needle cup seals and O-rings
(33, 34).
Needle and seal dirty.
Clean needle, replace seal (3a,
32).
Continued...
