Anest Iwata M220WB-081 Use And Maintenance Instruction Manual Download

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WA-M220, WA-220L Automatic Spray Gun

To adjust fluid needle packing set (3-4), first tighten it by hand while fluid nee-

dle set (2-2) is inserted. Then tighten it further about 1/6 turn (60-degree) by
wrench. When you remove needle packing set (3-4), do not leave plastic piece
of needle packing set (3-4) in the gun body.

IMPORTANT:

If you tighten fluid needle packing set (3-4) too much, fluid needle

set (2-2) does not move smoothly, resulting in paint leakage from tip of fluid
nozzle (2-1). Try to adjust it carefully while pulling and pushing fluid needle
set (2-2) by hand checking its movement. If it is tightened too much, first fully
loosen it, then tighten it again carefully. After, assemble gun completely while
pulling piston (4) and checking movement of fluid needle set (2-2). If fluid needle
set (2-2) does not move smoothly, disassemble again and try to adjust it with
the same process.

5. Assemble gun body.

Insert filler block nut to hole of rear part of gun body and

insert pin of the front part of gun body to the hole positioned on the front of
rear part of gun body as indicated. Connect front part with the rear part of gun
body, tightening 2 hex. socket head bolts (3-6) equally while fluid needle (2-2)
is inserted to get right centre position. While tightening the 2 hex. socket head
bolts (3-6) to accurately adhere the rear part of the gun to the front part, make
sure that the contact planes are at the same level.

IMPORTANT:

Tighten 2 hex. socket head bolts (3-6) while fluid needle set

(2-2) is inserted to avoid that fluid needle set (2-2) will not move smoothly.
The rear part of gun body should be adhered to front part and the 2 contact
planes with manifold (12) should be at the same level, to avoid air and fluid
leakage. Tighten 2 hex. socket head bolts (3-6) equally.

Tool: Hex. Socket screw key (width 4mm) - Hex socket head bolt.

6. Assemble piston set (4).

Screw rear section of fluid needle set (2-2) into piston

(4) and insert piston set (4) into the gun body. Apply grease to piston packing
(4-1) and O’rings. ∆ marks are indicated on bottom side of piston. When you
insert piston set (4) into the gun body, please make sure the position of ∆marks
are correct. ∆ marks must be positioned upper side and bottom side of gun
body.

IMPORTANT:

Apply grease to piston packing (4-1) and O’rings to avoid that

piston set (4) does not move smoothly.

7. Assemble fluid nozzle (2-1) and air cap set (1).

Tighten fluid nozzle (2-1) and air cap set (1) to the gun body.

IMPORTANT:

Fluid nozzle (2-1) should be tightened firmly in order to avoid fluid

leakage and fluttering.

Tools : Wrench (width 19mm) - Fluid nozzle

8. Position of the 2 horns of the air cap set (1), for easier assembly.

The body side has 1 pin to determine air cap position correctly (Vertical or
Horizontal). The air cap has 2 pins for the same function, so air cap can move
between the 2 pins 90°. If the air cap is installed correctly, according to air cap
marking, it will be possible to get the proper position.

IMPORTANT:

Turn air cap (1) and when 2 pins hit, tighten air cap cover and fix

it. Horn position is horizontal or vertical.

9. Assemble fluid needle set (2-2)

, fluid needle valve spring (5), piston

spring (6) and fluid adj. set (7) to gun body. Apply Vaseline or oil to thread
section of fluid adj. set (7) and insert it into gun body while keeping it fully
opened.

IMPORTANT:

If fluid adj. set (7) is not fully opened, tip seat section of it can

contact and damage fluid nozzle (2-1) and cause seizure thread.

Tool: Wrench (width 32mm) - Fluid adj. set

10.

Turn pattern adj. set (11) counter-clockwise to fully open. And then tighten

pattern adj. guide into manifold (12).

IMPORTANT:

If pattern adj. set (11) is not fully opened, tip of it can contact and

damage tip of manifold set (12) and cause seizure of thread.

Tool: Wrench (width 13mm) pattern adj. knob

11.