General Troubleshooting - Binks AA1600M Manuel De Service

CAUTION
!
Always engage trigger lock and relieve fluid pressure before servic-
ing gun.
The following procedure summarizes the steps that an
operator must immediately take when the first signs of a
defective spray pattern emerge.
1. Check the external portion of the fluid tip for material
buildup. If buildup has occurred, secure the gun trigger
safety switch and clean the gun fluid tip with a non-metal
soft brush.
2. If the spray pattern exhibits signs of tails at the top or
bottom ends of the pattern, increase the air pressure
gradually until the tails disappear.
3. If increasing air pressure does not dissipate the tails, the
fluid tip may be worn and may need to be replaced.
PROBLEM CAUSE
Fluid leaking from Worn seal or needle shaft.
through the seal
Loose needle seal.
Fluid leaking from the Needle ball worn or damaged.
front of the gun
Worn seat assembly.
Fluid in air passages Spray tip seal leaking.
Leaking around fluid seat.
Slow fluid shut off Fluid buildup on needle assembly.
No fluid output when Tip orifice plugged.
triggered
Needle is damaged or broken.
Fluid filter or fluid hose plugged.
The AA1600M Air-Assist H.V.L.P. hand spray gun combines the proven efficiency of the Binks compliant spray guns with air-assist
atomization to yield a reliable, carefully engineered compliant spray gun. With 25' of 5/16" I.D. air hose and regulator set at only 20
p.s.i. the compliant air cap registers 10 p.s.i. of atomization air to shape and soften the spray pattern. The AA1600M air-assist H.V.L.P.
gun operates at high transfer efficiencies and fully complies with all government regulations for H.V.L.P. spray guns.
Max. static air pressure at regulator with 25' of hose to inlet:
Max. Dynamic Gun Inlet Air Pressure:
77-2921-R10.4 (9/2016)
TROUBLESHOOTING DEFECTIVE SPRAY PATTERNS

GENERAL TROUBLESHOOTING

(Refer to page 12 when referencing part numbers in brackets.)
IMPORTANT REGULATORY NOTE
Max. Fluid Input:
Gun Body:
Fluid Path:
Another sign of the need to replace a worn tip is a gradual
decline in spraying pattern width.
4. If cleaning or replacing the fluid tip does not dissipate the
tails; the spraying defect is most likely due to the material
temperature and/or viscosity.
5. If pattern pulsation or blinking occurs, check the pressure
regulators, all downstream regulators, and the pump. These
may require further adjustment or even repairs.
Correct
Pattern
ACTION
Replace needle assembly (18).
Tighten packing nut gently until leak stops.
Replace needle assembly (18).
Replace fluid seat (3/3A).
Tighten air cap/nozzle guard assembly (7)
Replace carbide tip assembly (5/5A).
Tighten or replace fluid seat (3/3A).
Clean or replace needle assembly (18).
For flat tip: Turn off fluid supply. Relieve pressure into a closed earth-grounded
container. Engage trigger safety. Remove air cap/nozzle guard assembly (6) and
the carbide tip (5). Clean or replace carbide tip assembly (5).
For twist tip: Rotate twist tip (5A) in aircap (6A) and spray into a closed-
grounded container to try clear tip of any debris. If that fails to unplug the tip
then remove, clean and replace twist tip.
Turn off fluid supply. Relieve pressure into a closed-grounded container. Remove
trigger (10). Replace needle assembly (18)
Turn off fluid supply. Relieve pressure into a closed-grounded container. Turn off
air supply to pump and relieve fluid pressure with bypass valve. Engage trigger
safety. Very slowly loosen the hose connection at the gun to relieve any pressure
in hose. Remove hose and clear obstruction. NOTE: When replacing filter, use
two wrenches—one to hold tube (11) in place and prevent twisting, and the
other to remove nut (14). Only tighten nut (14) from 9 to 11 ft.-lbs.
1600 psi / 110 BAR
20 psi / 1.4 BAR
14 psi / 1 BAR
Forged Aluminum Alloy
Stainless Steel and Tungsten Carbide / UHMW
5 / 14
EN
Tails
Figure 3