Air Gunsa AZ10 Buku Petunjuk - Halaman 4

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MAINTENANCE AND INSPECTION

WARNING

- First release air and pressure fully according to item No. 3 of "Improper use of equipment" of WARNING on page 2.

- Tip of fluid needle set has a sharp point. Do not touch the tip of needle valve during maintenance for protection of

the human body.

- Be careful not to damage the tip of the fluid nozzle or put your hand on it.

- Only an experienced person who is fully conversant with the equipment can do maintenance and inspection.

CAUTION

- Never use commercial or other parts instead of AIR GUINSA original spare parts.

- Never immerse the whole gun into liquid such as thinner.

- Never damage holes of air cap fluid nozzle or fluid needle.

Step-by-step procedure

1.Pour remaining paint to another container. Clean fluid passages and air cap set.

Spray a small amount of thinner to clean fluid passages.

2.Clean each section with brush soaked with thinner and wipe out with waste cloth.

3. Before disassembly, fully clean fluid passages.

(1) Disassemble fluid nozzle.

(2) Disassemble fluid needle set.

You do not need to remove fluid adj. guide set from gun body.

Remove fluid adj. knob and fluid needle spring, and then pull out fluid needle

spring, and then pull out fluid needle set from back of fluid adj. guide set.

4.To adjust fluid needle packing set, while keeping fluid needle set inserted,

tighten fluid needle packing seat by hand and then tighten further by spanner.

5.In order to assemble air valve, first assemble air valve & air valve spring

& fluid adj. guide set together. Next, insert fluid needle set into fluid adj. guide set,

then fit it to gun body set and screw fluid adj. guide set.

6.Turn pattern adj. knob or air adj. knob counterclockwise to fully open.

And then tighten pattern adj. set or air adj. set.

Where to inspect

1. Each hole passage of air cap and fluid nozzle

2. Packing and O ring

3. Leakage from seat section between fluid nozzle and fluid needle set

Important

1. Incomplete cleaning can fail pattern shape and uniform particles.

Especially clean fully and promptly after use with two-component paint.

2. Do not immerse the whole gun in thinner. If done, it can damage parts.

When cleaning, never scratch any holes of air cap set and fluid nozzle, and

fluid needle set.

3. During disassembly, do not scratch seat section.

(1) Remove fluid nozzle after removing fluid needle set or while keeping

fluid needle pulled, in order to protect seat section.

(2) Be careful when handling tip of fluid needle set since it is sharp.

Disassemble fluid adj. guide set as little as possible.

4.Too much tightening of fluid needle packing set can cause bad movement

of fluid needle set and fluid leakage from the tip of fluid needle set.

5. If you try to fit air valve spring and air valve to gun body set without fluid

needle set, air valve will not be fitted correctly and packing inside fluid

adj. guide set will be damaged.

6. If pattern adj.Knob or air adj. Knob are not fully opened, tip of it can contact

and damage fluid nozzle and cause seizure of thread.

Parts replacement standard

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 and

fluid needle set.

If you replace fluid nozzle or fluid needle set only, fully match them

and confirm that there is no leakage.

TROUBLESHOOTING

Spray Pattern

Problems

1. Air enters between fluid nozzle and

Fluttering

tapered seat of gun body.

2. Air is drawn from fluid needle packing set

3. Air enters at fluid container fitting nut or fluid

hose joint.

1. Paint buildup on air cap partially

Crescent

clogs horn holes. Air pressure from

both horns differs.

1. Paint buildup or damage on fluid nozzle cir-

Inclined

cumference and air cap center.

2. Fluid nozzle is not properly fitted.

1. Paint viscosity too low.

Split

2. Fluid output too high.

Heavy

1. Paint viscosity is too high.

Center

2. Fluid output is too low.

1. Fluid nozzle and fluid needle set are

Spit

not seated properly.

2. The first-stage travel of trigger

(when only air discharges) decreases.

3. Paint buildup inside air cap set.

PROBLEMS AND REMEDIES

Problem

Where it

Parts to be

occurred

checked

Air leaks

Air valve set

Air valve

(from tip

of air cap)

Air valve seat set

O ring

Paint

Fluid nozzle

Fluid nozzle -

leaks

fluid needle set

Fluid nozzle -

gun body

Fluid needle -

packing set

Fluid needle

Needle packing

set, needle set

Packing seat

Paint does not

Tip of gun

Fluid adj. knob

flow

Tip hole of nozzle

Paint filter

Remedies

1. Remove fluid nozzle to clean seat.

If it is damaged, replace nozzle.

2. Tighten fluid needle packing.

3. Fully tighten joint section.

1. Remove obstructions from horn holes with

attached brush. But do not use metal

objects to clean horn holes.

1. Remove obstructions.

Replace if damaged.

2. Remove fluid nozzle, clean seated section

1. Add paint to increase viscosity.

2. Tighten fluid adj. knob to reduce fluid output

or turn pattern adj. knob clockwise.

1. Add thinner to reduce viscosity.

2. Turn fluid adj. knob counter-clockwise to

increase fluid output.

1. Clean or replace fluid nozzle and fluid

needle set.

2. Replace fluid nozzle and fluid

needle set.

3. Clean air cap set.

Cause

Remedy

Retighten Adjust Clean Replace

*Dirt or damage on seat

*Wear on air valve spring

*Damaged or deteriorated

*Dirt, damage, wear

on seat

*Loose fluid needle

adj. knob

*Wear on needle spring

*Insufficient tightening

*Dirt or damage on seat

*Needle does not return due

to packing set too tight

*Needle does not return due

to paint buildup

on fluid needle

*Wear

*Insufficient tightening

*Insufficient opening

*Clogged