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TROUBLESHOOTING

TROUBLESHOOTING (CONTINUED)

Problem Encountered

Possible Cause

Corrective Action

Heavy top or bottom pattern.

Horn holes plugged.

Clean. Ream with non-metallic point.

Obstruction on top or bottom of fluid tip.

Clean.

Cap and/or tip seat dirty.

Clean.

Heavy right or left side 
pattern.

Air Cap holes plugged.

Clean Ream with non-metallic point.

Air cap loose or dirty seat.

Clean and tighten.

Dried material on fluid tip. 

Use a nonmetallic point 
to clean Air Cap.

Heavy center pattern.

Fluid pressure too high for atomization air 
(pressure feed).

Balance air and fluid pressure.

Material flow exceeds air cap’s capacity.

Increase spray pattern width with spreader 
adjustment valve.
Thin or lower fluid flow.

Spreader adjustment valve set too low.

Adjust.
Increase pressure.

Material too thick.

Thin to proper consistency.

Split spray pattern.

Atomization air pressure too high.

Reduce at regulator or gun.

Fluid pressure too low (pressure feed only).

Increase fluid pressure
 (increases gun handling speed).

Pattern Control Knob too wide open.

Adjust.

Spitting or pulsating spray.
May also be accompanied 
bybubbling in the paint cup.

Loose or damaged fluid tip/seat.

Tighten or replace.

Material level too low.

Refill.

Container tipped too far.

Hold more upright.

Obstruction in fluid passage.

Back flush with solvent.

Loose or broken fluid tube or
 fluid inlet nipple.

Tighten or replace.

Dry, loose or worn needle packing.

Replace packing.

Unable to get round spray.

Spreader adjustment screw not
 seating properly.

Clean or replace.

Air cap retaining ring loose.

Tighten.

Will not spray.

No air pressure at gun.

Check air supply and air lines.

Internal mix or pressure feed air cap and
 tip used with suction feed.

Change to proper suction feed air cap
  and tip.

Fluid pressure too low with internal mix cap 
and pressure tank.

Increase fluid pressure at tank.

Fluid needle adjusting screw not open 
enough.

Open fluid needle adjusting screw.

Fluid tool heavy for suction feed.

Thin material or change to pressure feed.

Starved spray pattern.

Inadequate material flow.

Back fluid adjusting screw out to first
 thread or increase fluid pressure at tank.

Too much atomization air pressure.

Reduce pressure.

Problem Encountered

Possible Cause

Corrective Action

Excessive overspray

Gun too far from work surface.

Adjust to proper distance.

Improper stroking (arcing, gun motion too 
fast).

Move at moderate pace, parallel to
 work surface.

Excessive fog

Too much, or too fast-drying thinner.

Remix properly.

Too much atomization air pressure.

Reduce pressure.

Dry spray

Air pressure too high.

Reduce air pressure.

Gun tip too far from work surface.

Adjust to proper distance.

Gun motion too fast.

Slow down.

Gun out of adjustment.

Adjust.

Fluid leaking from packing 
nut

Packing nut loose.

Tighten, do not bind needle.

Packing worn or dry.

Replace or lubricate.

Fluid leaking or dripping from
  front of pressure feed gun

Packing nut too tight.

Adjust.

Dry packing.

Lubricate.

Fluid tip or needle worn or damaged.

Replace tip.

Foreign matter in tip.

Clean.

Fluid needle spring broken.

Replace.

Wrong size needle or tip.

Replace.

Runs and sags

Too much material flow.

Adjust gun or reduce fluid pressure.

Material too thin.

Mix properly or apply light coats.

Gun tilted on an angle, or gun motion
 too slow.

Hold gun at right angle to work and adapt
  to proper gun technique.

Thin, sandy coarse finish
  drying before it flows out

Gun too far from surface.

Check distance. Normally about  8”.

Too much air pressure.

Reduce pressure and check spray pattern.

Improper thinner being used.

Follow paint manufacturer’s mixing 
instructions.

Thick, dimpled finish
  “orange peel”

Gun too close to surface.

Check distance. Normally about 8”.

Too much material coarsely atomized.

Increase air pressure or reduce
 fluid pressure.

Air pressure too low.

Increase air pressure or reduce
 fluid pressure.

Improper thinner being used.    

Follow paint manufacturer’s
 mixing instructions.

Material not properly mixed.

Follow paint manufacturer’s instructions.

Surface rough, oily, dirty.

Properly clean and prepare surface.

Содержание 19610

Страница 1: ...2 Quart Spray Gun Kit Instruction Manual 19610 ...

Страница 2: ...ich may ignite the dust or fumes 3 Keep pets bystanders children and visitors away while operating a spray gun READ BEFORE USING It is the owner and or operator s responsibility to study all WARNINGS operating and maintenance instructions contained on the product label and instruction manual prior to operation of this tool The owner operator shall retain product instructions for future reference T...

Страница 3: ...they are broken into very small particles and mixed with air This will cause certain paints and materials to become extremely flammable and could result in serious injury or death Never spray closer than 25 feet to the air compressor Motors electrical equipment and controls can cause electrical arcs that will ignite a flammable gas or vapor Never store flammable liquids or gases in the vicinity of...

Страница 4: ...from horizontal to vertical loosen the Lock Ring and turn the Air Cap 90 degrees After the adjustment tighten the Lock Ring by hand PATTERN ADJUSTMENT 1 Adjust air pressure to the spray gun according to the recommendations supplied by the spray material manufacturer This air pressure is typically between 10 to 30 PSI 2 The width of the fan spray is controlled by the pattern control knob Turn knob ...

Страница 5: ...w manufacturer s instructions for proper use of cleaning equipment and materials Dispose of used cleaning materials in accordance with local state and national regulations Shut off air supply to paint tank and release pressure in the tank 1 Release pressure in the paint cup and then Empty the Paint Cup and clean it with the solvent 2 Fill the Paint Cup with solvent and spray it through the Gun int...

Страница 6: ...p 36 Connector Qty 2 17 Rivet 37 Gauge Seat 18 Gasket 38 Gauge 19 Tube 39 Fluid Outlet 20 Screw 1 Fluid Nozzle 20 Adjusting Lever 2 Lock Ring 21 Clip 3 Gasket 22 Adjusting Seat 4 Locking Knob 23 O ring 5 Air Cap Set 24 Pattern Control Knob 6 Sealing Gasket 25 Sealing Screw 7 Sealing Gasket 26 Air Inlet 8 Packing Nut 27 Air Valve Spring 9 Trigger Pin 28 Air Valve Seat 10 Clip 29 O ring 11 Trigger 3...

Страница 7: ...usting screw Fluid tool heavy for suction feed Thin material or change to pressure feed Starved spray pattern Inadequate material flow Back fluid adjusting screw out to first thread or increase fluid pressure at tank Too much atomization air pressure Reduce pressure Problem Encountered Possible Cause Corrective Action Excessive overspray Gun too far from work surface Adjust to proper distance Impr...

Страница 8: ...nance neglect or accident or the damage is due to use of the product after partial failure or use with improper accessories Seller will not be liable for labor charges loss or damage resulting from improper operation maintenance or repairs made by persons other than a Star Asia USA LLC Authorized Service Center The use of other than genuine Star Asia USA LLC Repair Parts will void warranty Warrant...

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