Binks TROPHY AA 4400 - General Troubleshooting

GENERAL TROUBLESHOOTING
PROBLEM CAUSE REMEDY
Fluid leaking from needle
packing
Worn needle packing or needle shaft Replace air valve & uid needle assembly, item 5.
Loose needle packing Tighten packing nut gradually until leak stops.
Fluid leaking from the front of
the gun
Worn or damaged needle ball Replace air valve & uid needle assembly, item 5.
Worn seat assembly Replace uid nozzle, item 9.
Fluid in air passages Spray tip seal leaking Tighten air cap & nozzle guard assembly, item 11 or 13.
Replace carbide tip seal. RS-5000-K5 or RS-5000-K10
Leaking around uid seat Tighten or replace uid nozzle, item 9.
Fluid slow to shut off Fluid buildup on needle assembly Clean or replace air valve & uid needle assembly, item 5.
No uid output when gun is
triggered
Tip orice is plugged Flat tips - Turn off uid supply. Relieve pressure into a closed
earth-grounded container. Engage trigger safety. Remove air
cap/nozzle guard assembly and spray tip. Clean or replace
the spray tip, item 12.
Twist tips – Rotate twist tip 180° within the air cap, then
spray into a closed earth-grounded container to try to clear
tip of any debris. If that fails, turn off uid supply. Engage
trigger safety. Remove air cap/nozzle guard assembly and
spray tip. Clean or replace the twist tip, item 10.
Needle is damaged or broken Turn off uid supply. Relieve pressure into a closed earth-
grounded container. Engage trigger safety. Replace air valve
& uid needle assembly, item 5.
Fluid lter is plugged Turn off uid supply. Relieve pressure into a closed-grounded
container. Engage trigger safety. Turn off air supply to pump
and relieve uid pressure from pump using bypass valve on
pump. Very slowly loosen the uid hose connection at the
gun to relieve any pressure in the hose. Remove the uid
hose. Using two wrenches, one to hold the uid tube in
place, and the other to remove the nut. Open the uid lter,
and clean or replace the lter element, item 17e.
Fluid hose is plugged Turn off uid supply. Relieve pressure into a closed-grounded
container. Engage trigger safety. Turn off air supply to pump
and relieve uid pressure from pump using bypass valve on
pump. Very slowly loosen the uid hose connection at the
gun to relieve any pressure in the hose. Remove the hose
and clear obstruction, or replace hose.
Needle Packing Nut
Trigger Safety
Fluid Filter
EN
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