Anest Iwata WIDER1L-2-12J2S Instruction Manual page 10

■ Troubleshooting
Spray Pattern
1. Air enters between fluid nozzle and tapered seat of spray gun body.
2. Air is drawn from fluid needle packing set.
3. Air enters at fluid container fitting nut or fluid hose joint.
Fluttering
1. Paint buildup on air cap assy. partially clogs horn holes.
Air pressure from both horns differs.
Crescent
1. Paint buildup or damage on fluid nozzle circumference and air cap
assy. center.
2. Fluid nozzle is not properly fitted.
Inclined
1. Paint viscosity too low.
2. Fluid output too high.
3. Pattern air pressure is too high.
Split
1. Paint viscosity is too high.
2. Fluid output is too low.
Heavy Center
1. Fluid nozzle and fluid needle are not seated properly.
2. The first-stage travel of trigger (when only air discharges) decreases.
3. Paint buildup inside air cap assy.
Spit
Where it
Problem
occurred
Fluid nozzle
Paint leaks
Needle packing set
Paint does not
Tip of spray gun
come out
Air leaks
Air valve &
(from tip of air cap
Air valve seat assy
assy)
■How to operate
・ To achieve the recommended 10 PSI air pressure inside the air cap, first fully open the pattern adjustment.
Then while pulling the trigger, set the air pressure at the gun inlet to that shown in the previous specifications table.
・ Recommended paint viscosity differs according to paint property and painting conditions.
14 to 25 s / Ford cup#4 is recommendable.
・ Keep fluid output as small as possible to the extent that the job will not be hindered.
It will lead to better finishing with fine atomization.
・ Set the spray distance from the spray gun to the work piece as near as possible within the range of 100~250 mm (3.9~9.8 in).
・ The spray gun should be held so that it is perpendicular to the surface of the work piece at all times.
Then, the spray gun should move in a straight and horizontal line. Arcing the spray gun causes uneven painting.
Problems
Parts to be checked
Fluid nozzle ~ Fluid needle
Fluid nozzle ~ Spray gun body
Needle packing set
Needle packing set
~ Fluid needle
Needle packing set
Fluid adj. knob
Tip hole of fluid nozzle
Needle packing set
~ Fluid needle
Air valve
Air valve seat assy
3176, Shinyoshida-cho, Kohoku-ku, Yokohama, 223-8501, Japan
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 and clean seat section.
1. Add paint to increase viscosity.
2. Turn fluid adj. knob clockwise to reduce fluid output.
3. Turn pattern adj. assy. clockwise to reduce pattern air pressure.
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 assy..
2. Replace fluid nozzle and fluid needle assy.
3. Clean air cap assy.
Cause
Dirt, damage, wear on seat
Loose fluid needle adj. knob
Wear on needle spring
Insufficient tightening
Dirt or damage on seat
Fluid needle does not return due to packing set too tight
Fluid needle does not return due to paint buildup on fluid needle
Wear
Insufficient tightening
Insufficient opening
Clogged
Clogged
Insufficient tightening
Dirt or damage on seat
Dirt or damage on seat
Wear on air valve spring
4
Remedies
R1: retighten R2: adjust R3: clean
R1
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〇
100~250 mm
(3.9~9.8 in)
R4: replace parts
Remedy
R2 R3 R4
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Manual No. T940-04
Code No. 03012690