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1. Pulling trigger carefully causes air valve to open and only atomizing air to emit.

2. Pulling trigger further causes fluid valve to open which enables fluid to emit.

3. Tightening stopper knob prevents fluid valve from opening and trigger is locked.

When you receive the gun after purchase, ensure that components have not been damaged during transport.

If there is any damage, or if any components are missing, do not use the product to avoid causing further damage. Contact the 

distributor immediately.

Always keep caution plates (warning displays) clean and in good condition. Replace them if they are damaged or missing.

PAINTING

WARNING

Securely connect fluid hose. When paint leaks, never try to stop it with hands but stop pump immediately and reduce paint pres-

sure down to 0 pressure.

Be sure to use fluid hose with built-in ground wire in order to connect to ground.

CAUTION

Before using a new Multi Spray gun, clean inside it. If not, rust preventive oil inside Multi Spray gun can cause painting failure.

3

6

1. Never alter this Multi Spray gun.

If done, it can cause insufficient performance and failure.

2. Enter working areas of other equipment (robots, reciprocators, etc.) after machines have been turned off.

If not, contact with them can cause injury.

3. Never spray food or chemicals through this gun.

If done, it can cause accident by corrosion of fluid passages or adversely affect health by mixed foreign matter.

4. Securely connect fluid hose.

If hose is disconnected during operation, hazardous hose movement and paint ejection will cause severe bodily injury.

5. If something goes wrong, immediately stop operation and find the cause. Do not use again until you have solved the problem.

NAME OF COMPONENTS AND CHECKING THE PRODUCT

OTHER PRECAUTIONS

Body

Trigger

Pattern adjustment 

Adjusts pattern width

Fluid adjustment knob 

Air cap

atomizes fluid

Needle packing

prevents paint leaking

Filter

removes dust (200 mesh)

Fluid connection G1/4”

Atomizing air connection G 1/4”

Trigger stopper knob 

(locks fluid output)

ACCESSORIES:

Cleaning brush

Cleaning needle

O ring

PROBLEMS AND REMEDIES

IMPORTANT

: For 

*

marked items, ask our distributor to remedy it for you. Incorrect remedy cannot achieve satisfactory performance.

Problem

Where it occurred

Where to check

Cause

Tighten Adjust Clean

Replace

Each joint connection

All joints, connections 

Weak tightening

X

Damage on seat

X

Air leaks

Dirt on seat

X

Air cap

Air valve seat-

Damage on seat

X

*

Air valve

Dirt on seat

X

*

Wear on seat

X

*

Air valve spring

Weak spring

X

*

Weak tightening

X

Each joint, connection

All joints, connections

Damage on seat

X

Dirt on seat

X

Nozzle gland

Weak tightening

X

*

Fluid leaks

Gun body

Damage on seat

X

*

Fluid nozzle

Fluid needle spring

Weak tightening

X

*

Air cap set holes

Nozzle tip

Damage on seat

X

Nozzle gland

Dirt on seat

X

Air cap set

Weak tightening

X

Fluid needle packing 

Fluid needle packing

Worn

X

*

set Fluid 

needle

Worn

X

Fluid needle packing seat

Weak tightening

X

Fluid supply

Fluid pressure 

Pressure too low

X

Small or

route

Filter set

Clogged

X

X

no fluid 

Fluid hose

Clogged

X

X

output

Tip of gun

Fluid nozzle

Clogged

X

Safety lock 

Trigger stopper knob

Unlock

X

Paint

Paint viscosity

Viscosity too high

X

Air cap set

Air cap holes

Clogged

X

Deformed or damaged

X

Paint residue 

Paint buildup

X

buildup on air cap 

Air cap, fluid nozzle

Deformed or damaged 

X

set

passages

Fluid nozzle

Clogged

X

Worn or damaged

X

Same as above

Same as above

Same as above

Incomplete 

Atomizing air route

Atomizing air pressure 

Too low (tails occur)

X

pattern

Too high (heavy at both

ends of spray pattern)

SELECTION OF NOZZLE TIP ACCORDING TO KIND OF PAINT

NUMBERING SYSTEM

Diameter size x 0.001 inch
Angle

MST - 13 50TR

Use a nozzle tip two sizes larger 
when using high viscosity paint 
or paint which can clog easily.

14216520

MST-0740TR

40°

0,18

0,007”

140 - 180

0,20

14216530

MST-0925TR 

25°

0,23

0,009”

100 - 140

0,27

14216540

MST-0940TR

40°

0,23

0,009”

140 - 180

0,27

14216550

MST-0950TR 

50°

0,23

0,009”

180 - 220

0,27

14216580

MST-1140TR 

40°

0,28

0,011”

140 - 180

0,34

14216590

MST-1150TR 

50°

0,28

0,011”

180 - 220

0,34

14216600

MST-1165TR 

65°

0,28

0,011”

220 - 260

0,34

14216610

MST-1325TR 

25°

0,33

0,013”

100 - 140

0,52

14216620

MST-1340TR 40°

0,33

0,013”

140- 

180

0,52

14216630

MST-1350TR 

50°

0,33

0,013”

180 - 220

0,52

14216640

MST-1365TR 65°

0,33

0,013”

220- 

260

0,52

Code

Description

Angle

Ø orifice

Pattern width

Fluid output

mm

inch

mm

l/min 

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