Anest Iwata High T.E.C. W400 WB Instruction Manual page 4

DISTURBANCES DURING OPERATION
Fault
Pulsation
Crescent
Skew
Splitting
Separate stains
Spitting
PROBLEMS AND TROUBLESHOOTING
Problem Location
Air leak from head Air
hole valve
Lacquer leak Spray gun nozzle
hole
Needle
seal
Lacquer does not
flow out Nozzle hole
Reason
1. Air penetrates between the nozzle and its
tapered seat in the body.
2. Air is drawn in through the head seal.
1. Lacquer residues inside the head, partially
clogged the head holes. Different air
pressure in head holes.
1. Lacquer residues on the nozzle hole
edges, or damaged central hole in the head.
2. Loose nozzle.
1. Too low lacquer viscosity.
2. Too high liquid outflow.
1. Too low lacquer viscosity.
2. Too high liquid outflow.
1. Nozzle and needle are incorrectly
mounted.
2. Too short stroke of release trigger
opening air flow.
3. Lacquer residues inside the head.
Parts to check
Air valve
Air valve
seat
Valve sealing
Nozzle - needle unit
Nozzle - body
Needle seal
Needle seal
needle unit
Seal
Needle knob
Nozzle hole
Lacquer filter
Sales Office : 05-083 Zaborów, Borzęcin DuŜy, Poland
ul. Warszawska 749
phone: (022) 752-06-00
e-mail: nts@nts.com.pl
1. Unscrew the nozzle in order to clean the
seat – replace if damaged.
2. Seal the head.
1. Remove soiling from head holes. Do not
use metal objects to do this.
1. Remove soiling from the nozzle or replace
it if damaged.
2. Unscrew the nozzle and clean its seat.
1. Add more lacquer in order to increase
viscosity.
2. Adjustment with jet or needle control knob.
1. Reduce viscosity.
2. Increase liquid outflow.
1. Clean or replace nozzle and needle.
2. Replace nozzle and needle unit.
3. Clean the head.
Reason
Dirty or soiled seat
Soiled or damaged
Worn out valve spring
Damaged or aged
Soiled, damaged,
seat wear
Loose needle knob
Worn out needle spring
Insufficiently tightened
Soiled or damaged seat
Needle does not return to
closed position - seal too
tight
Needle does not return to
closed position - lacquer
residues on the needle
Wear
Insufficient pressing down
Insufficient opening
Clogged
Clogged
fax: (022) 752-05-92
www: www.nts.com.pl
4
Remedy
Solution
Press Adjust Clean
down
X
X
X
X
X
X
X
X X
X
X
X
X
X
Replace
X
X
X
X
X
X
X
X
X
X