Maintenance And Inspection - Anest Iwata LPH-80 Serie Manual Del Usuario

LPH-80 (LVLP

5. MAINTENANCE AND INSPECTION

Before carrying out maintenance and inspection
CAUTION
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 (20) 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. DISASSEMBLE PROCEDURE
IMPORTANT: BEFORE DISASSEMBLY, FULLY CLEAN FLUID PASSAGES.
A. Disassemble air cap cover (3) and
air cap (1) from gun body.
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3
) Spray Gun for
B. Disassemble fluid nozzle (4) by using
not enclosed spanner, while keeping
fluid needle (5) pulled (triggering) in
order to protect its seat section. (size
Hex.14 mm).
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SPOT REPAIR
C. Remove fluid adj. knob (16), needle spring (15), extracting the spring and
fluid needle set (5), from the back of fluid adj. guide set still assembled on the
gun body.
D. Remove fluid adj. guide set (14), air valve spring (13) and air valve (12).
E. To disassemble pattern adj. set (9) and/or air adj. set (18), turn manually turn
the adjustment knob of the regulation counter-clockwise to open it completely
and unscrew the hexagon face with a spanner turning it counter-clockwise.
F. In order to remove air valve seat
(10) , first unscrew air valve screw
(11) from gun body by using the spe-
cial screwdriver, then extract air valve
seat (10) and air valve shaft (17).
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IMPORTANT: Before reassembling pattern adjustment set and/or air
adjustment set, make sure that these operations are carried out with the
adjustment fully open.
REVERSE ALL THE PROCEDURES TO REASSEMBLE EACH
SECTION OF SPRAY GUN.
Disassemble needle packing set (7) unscrew it by using not enclosed special
spanner and remove it from gun body. IMPORTANT: When you remove
needle packing set (7) do not leave the two packings (black and white)
in the gun body. Use the fluid needle as a guide to push out the packings
from gun body as shown in the pic. 2.
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7
7
FLUID NEEDLE PACKING ADJUSTMENT:
Needle packing set (7), must always be adjusted while fluid needle set (5) is
inserted and in the following way: tighten it by hand and then with spanner.
(about a 60 degree turn).
If you tighten needle packing set (7) too much, fluid needle set (5) will not
move smoothly, resulting in paint leakage from tip of fluid nozzle (4).
Try to adjust it carefully while pulling trigger and confirming movement
of fluid needle set (5). If you tighten it too much, repeat operation.
EN
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Special screwdriver
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