4
6. TROUBLESHOOTING
GUN DOES NOT SPRAY
- Fluid adj. knob (6) closed.
Check and adjust.
- Tip hole of nozzle (2) obstructed. Check and clean.
- Paint filter obstructed.
Check and clean.
- Non drip obstructed.
Check and clean.
INTERMITTENT SPRAY PATTERN
- Air escapes from fluid nozzle.
Check , clean & replace if
necessary.
- Air escapes from fluid needle
Tighten.
packing (10).
- Air escapes from cup joint.
Tighten.
- Dirt inside air cap (1).
Clean.
DEFECTIVE SPRAY PATTERN
- Dirty nozzle (2) or air cap (1).
Clean carefully.
- Nozzle (2) or air cap (1)
Replace if damaged.
has been damaged.
- Fluid nozzle (2) is loose.
Tighten.
- Paint viscosity too high or
Dilute paint or increase
too low.
viscosity
- Fluid output too high or
Adjust fluid adj. knob (6)
too low.
to reduce or increase.
LEAKING
- Fluid nozzle (2), needle set
Clean or replace if neces-
(9) or gun body, dirty,
sary.
damaged or worn on seat.
- Dirt inside air cap (1).
Clean.
- Loose fluid adj. knob (6).
Adjust.
- Fluid needle spring (8) is
Replace.
worn.
- Loose fluid nozzle (2).
Tighten.
- Needle packing set (10) loose, Adjust, clean or replace.
too tight, dirty or worn.
AIR ESCAPES FROM AIR CAP
- Air valve (11-2), air valve
Clean or replace if neces-
seat (11-3) or air valve spring sary.
(11-1) dirty or damaged.
6.1 INSPECTION & REPLACEMENT STANDARD
EN
AZ1 HTE 2P | AZ1 HVLP P | AZ1 HTE 2S | AZ1 HVLP S
5. MAINTENANCE AND INSPECTION
CAUTION
- Never use spare parts that are not AIRGUNSA originals.
- Never damage fluid nozzle tip, fluid needle or air cap holes.
- Never immerse the spray gun completely in liquids such as thinner.
5.1 CLEANING PROCEDURE
- Never soak air cap set (1) in cleaning liquid for an extended period,
even when cleaning.
- Never use metal brush to clean the gun.
1. Clean fluid passages and air cap set (1). Spray a small amount of cleaner
to clean fluid passages.
2. Clean each section with brush soaked with cleaner and wipe out with
waste cloth.
Do not immerse the whole gun in the cleaner. If done, it can
damage parts. When cleaning, never scratch any holes of air cap set, fluid
nozzle, or fluid needle set.
5.2 MAINTENANCE
BEFORE DISASSEMBLY, CLEAN FLUID PASSAGES.
a.
Disassemble fluid nozzle (2), while keeping fluid needle (9) pulled (triggering)
in order to protect its seat section.
b.
Disassemble fluid needle set (9).
(only when strictly necessary).
c.
Remove the fluid adj. knob (6) and needle spring (8), extracting the spring and
fluid needle set (9), from the back of fluid adj. guide (7) set still assembled on
the gun body.
d.
Adjustment of the needle packing set, must always be carried out with fluid
needle (9) still assembled, tightening the nut with a properly spanner, making
sure that excessive tightening does not impede movement of fluid needle (9),
resulting in paint leaking from fluid nozzle tip (2).
- When you remove needle packing nut (10), don’t leave the plastic part of
needle packing set in the gun body.
- Try to adjust it carefully while pulling trigger and confirming movement of fluid
needle set (9).
- If you tighten it too much, repeat operation.
e. Disassembly of pattern adjustment set (5) and/or air adjustment set (14).
In order to disassemble pattern adj. set (5) and/or air adj. set (14), turn
manually turn the hexagon knob of the adjustment counter-clockwise to
open it completely and unscrew the hexagon face with a spanner turning it
counter-clockwise.
- To reassemble pattern adjustment set (5) and/or air adjustment set (14),
reverse the procedure.
IMPORTANT: Before reassembling pattern adjustment set and/or air
adjustment set, make sure that these operations are carried out with the
adjustment fully open.
The fluid passages of the gun, must be cleaned thoroughly
after each use, especially after use with bi-component paints.
Incomplete cleaning can cause defective pattern shape.
Before carrying out maintenance and inspection ALWAYS
observe warning indications.
WHERE TO INSPECT
REPLACEMENT PART
a. Each hole passage of air cap
(1) and fluid nozzle (2).
Replace if it is crushed or deformed.
b. Packing and O ring
Replace if it is deformed or worn out.
c. Leakage from seat section
between fluid nozzle (2) and
fluid needle set (9).
Replace them if leakage does not stop
after fully cleaning fluid nozzle (2) and
fluid needle set (9).
If you replace fluid nozzle (2) or fluid
needle set (9) only, fully matchthem and
confirm that there is no leakage.
