How To Operate; Maintenance & Inspection - Anest Iwata WA-M220 Serie Betriebsanleitung

EN WA-M220, WA-220L Automatic Spray Gun
HOW TO CHANGE UNIONS FOR CIRCULATION USAGE
Thread for
fitting gun
IMPORTANT
1. Pull plug (3-2) out from gun body,
with attached screw (19) as standard
accessory.
2. Put O'ring (3-3) as standard accessory,
where plug (3-2) has been removed.
3. Connect fitting joint tightly to fluid outlet
of manifold (CIR).
4. Connect fluid hose to the joint.

4. HOW TO OPERATE

Suggested operating air pressure is 4 to 5 bar (57 to 71 PSI).
NOTE: Valve orifice inside three-way solenoid valve should be minimum 4mm
(0.157in) and also operating air hose length should be within 10m (32.8ft) with
the inner diameter more than 6mm (0.236in) to avoid delayed operation and
any kind of failure.
5. MAINTENANCE & INSPECTION
CAUTION
Before carrying out maintenance and inspection ALWAYS
observe SAFETY 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.
- Never soak air cap in cleaning liquid for extended period even if clea-
ning.
HOW TO PROCEED
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.
1. Clean fluid passages and air cap set (1). Spray a small amount of cleaner
to clean fluid passages.
Incomplete cleaning can fail pattern shape and uniform particles.
Especially clean fully and promptly after use with two-component paint.
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 dam-
age parts. When cleaning, never scratch any holes of air cap set, fluid nozzle,
or fluid needle set.
3. Disassembling: Before disassembling, fully clean fluid passages.
During disassembly, do not damage seat sections.
4
Pattern adj. knob
Fluid adj. knob
200 mm - 250 mm
A. Disassemble gun and manifold. Manifold can be kept on fixing stay.
Cause manifold is kept on fixing stay, when spray operation continues, just con-
nect gun to manifold without re-positioning. Hoses are kept on fixing manifold.
No need to disconnect and connect again, when maintenance is carried out.
1.Turn wing bolt (9) counterclockwise
B. Disassemble fluid adjustment set (7), piston spring (6), fluid needle valve spring
(5) and fluid needle set (2-2). Pull fluid needle set (2-2) straight to protect
fluid needle packing set (3-4). Remove fluid adj. set (7), piston spring (6) and
fluid needle valve spring (5), then pull out fluid needle set (2-2) from gun body.
Pay attention so that fluid adj. set (7) does not suddenly fly out since it is strongly
pushed by fluid valve spring (5) and piston spring (6).
C. Disassemble air cap set (1) and fluid nozzle (2-1). Remove fluid nozzle (2-1)
after removing fluid needle set (2-2) or while keeping fluid needle (2-2) pulled,
in order to protect seat section.
Tools: Wrench (width 19 mm) - Fluid nozzle
D. Disassemble air piston set (4). Screw rear section of fluid needle set (2-2) into
piston (4) and pull out piston set (4).Be careful not to damage piston packing
(4-1) and o'rings when pulling out piston set (4).
E. Disassemble gun body and fluid needle packing set (3-4). Disassemble front
part and rear part of gun body removing 2 hex. socket head bolts (3-6) from
body. Then remove fluid needle packing set (3-4) from front part of gun and
remove filler block nut (8) from rear part of gun body.
Tools : Hex. Socket screw key (width 4mm) - Hex. socket head bolt
Wrench(width 10mm) - Fluid needle packing set.
C
E
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).
2. Remove gun from manifold (12)
D
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.