Anest Iwata W-300 Serie Manuel D'utilisation Et D'entretien page 4

EN
W-300 _ W-300 WB High T.E.C | LPH-300 (LVLP
5. MAINTENANCE AND INSPECTION
CAUTION
Before carrying out maintenance and inspection ALWAYS
observe warning indications.
- Never use spare parts that are not ANEST IWATA 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 MANUAL 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 (16) and make sure, that atomizing air enters cup.
5. Leave cleaner for a few seconds, then empty it into suitable waste container.
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 AUTOMATIC CLEANING PROCEDURE
_ When using automatic spray gun washer, follow the instruction manual
provided with it. Before cleaning, make sure air is released from air pas-
sages.
_ Only use suitable cleaner designed for your spray gun washer.
_ Make sure that the equipment is dried immediately after cleaning.
_ Do not leave spray guns inside spray gun washer, after cleaning.
Cleaner vapour can damage packings and cause corrosion inside gun body.
_ Do not leave spray guns soaking in cleaner.
_ Securely ground washer equipment.
Use of cleaner with waterborne coatings, can increase PH level, especially after
several cleanings. Please, replace the cleaner regularly in order to always en-
sure the best spray gun performance.
_ Make sure that the PH level of cleaner does not exceed the limit.
PH level: 6.0~8.0 (but only during cleaning).
5.3 DISASSEMBLY PROCEDURE
_ Before disassembly, fully clean fluid passages.
a
a. Disassemble fluid nozzle (2-1), while
b. Disassemble fluid needle set (2-2).
c. Remove fluid adj. knob (12), needle spring (11), extracting the spring and fluid
needle set (2-2), from the back of fluid adj. guide set (10) still assembled on
the gun body.
c
4
keeping fluid needle (2-2) pulled (triggering)
in order to protect its seat section.
(only when strictly necessary)
d. Needle packing set (20), must always be
d
Plastic pieces
White
- If you tighten fluid needle packing set (20) too much, fluid needle set
(2-2) will not move smoothly, resulting in paint leakage from tip of fluid
nozzle (2-1).
- Try to adjust it carefully while pulling trigger and confirming movement
of fluid needle set (2-2).
- If you tighten it too much, repeat operation.
e. Air valve assembly (8), assemble air valve (8), air valve spring (9) and
fluid adj. guide set (10) together. Next, insert fluid needle set (2-2) into
fluid adj. guide set (10), fit it to gun body set and screw fluid adj. guide
set (10).
- If you try to fit air valve spring (9) and air valve (8) to gun body set
without fluid needle set (2-2), air valve (8) will not be fitted correctly and
the packing in the fluid adj. guide set (10) will be damaged.
e
f. Disassembly of pattern adjustment set (6) and/or air adjustment set (14).
In order to disassemble pattern adj. set (6) 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 (6) 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.
5.4 INSPECTION & REPLACEMENT STANDARD
WHERE TO INSPECT
a. Each hole passage of air cap
(1) and fluid nozzle (2-1).
b. Packing and O ring
c. Leakage from seat section
between fluid nozzle (2-1) and
fluid needle set (2-2).
)
adjusted while fluid needle set (2-2) is inser-
ted and in the following way: tighten it by
hand (about a 60 degree turn) and then with
spanner. When you remove needle packing
set (20), do not leave plastic piece of needle
packing set (20) in the gun body.
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 (2-1) and
fluid needle set (2-2).
If you replace fluid nozzle (2-1) or
fluid needle set (2-2) only, fully match
them and confirm that there is no leak-
age.