Air Gunsa GRAVITY Serie Manuel D'utilisation Et D'entretien page 4

EN
AZ3 HTE2 | AZ3 HTE2 AV | AZ3 HTE2 HVLP
5. MAINTENANCE AND INSPECTION
CAUTION
Before carrying out maintenance and inspection ALWAYS
observe warning indications.
- 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
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.
- 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. Drain remaining paint from spray gun and cup, into a suitable container.
2. Pour cleaner into cup.
3. Unscrew air cap (1) by 2 turns, to allow atomizing air to back flush, fluid
passages of the gun.
4. Pull trigger (13) and make sure, that atomizing air enters cup.
5. Leave cleaner for a few seconds, then empty it into suitable waste con-
tainer.
6. Repeat procedure above, until spray gun is clean.
7. Remove air cap (1) and cup from gun, then clean each section with brush
soaked with cleaner and wipe out with waste cloth.
8. DRY ALL PARTS completely and apply spray gun lubricant to each thread.
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).
4
- When you remove needle packing nut (10), don't
leave the two plastic parts 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 (14-1).
In order to disassemble pattern adj. set (5) and/or air adj. set (14-1), 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 (14-1),
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.
5.3 HOW TO ADJUST
PATTERN ADJUSTMENT
(for all models)
Left turn (L)= LARGE pattern
Right turn (R)= SMALL pattern
5.4 INSPECTION & REPLACEMENT STANDARD
WHERE TO INSPECT
a. Each hole passage of air cap
(1) and fluid nozzle (2).
b. Packing and O ring
c. Leakage from seat section
between fluid nozzle (2) and
fluid needle set (9).
AIR FLOW ADJUSTMENT
REPLACEMENT PART
Replace if it is crushed or deformed.
Replace if it is deformed or worn out.
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.