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CLEANING AND MAINTENANCE
CLEAN DAILY
Maintaining a clean gun is important to ensure
trouble-free operation and extend the service life
of your gun. Always flush the gun thoroughly
after each use and store in a warm, dry location.
DO NOT leave the gun or any of its parts in
water or solvents.
Always flush gun outside if possible and at least
25 ft (7.5 m) away from sprayer.
Area must be free of flammable vapors.
Always flush at minimum pressure. Always
remove tip and guard.
Static electricity buildup may result in fire or
explosion in the presence of flammable vapors.
Always hold the gun firmly against a grounded,
metal container when flushing.
TROUBLESHOOTING
Spray gun distance from work surface should be
at a point where maximum fan pattern is evident.
This distance is normally 8 to 14 inches.
Excessive fluid pressure will distort the spray
pattern. Spray at the lowest acceptable pressure.
Hour-glass and tails on spray patterns normally
indicate too low a fluid pressure for the nozzle tip
orifice size or the material is too viscous or thick.
Increase the pressure or thin the material.
Distorted patterns may be the result of worn or
plugged tips. Clean (see tip clogs) or replace the
spray tip.
Airless spray guns are either on or off. You
cannot feather with airless guns as you can with
air atomized equipment.
Successive strokes may require overlapping.
Typical overlap is 30%.
77-2950-R7 (6/2023)
BINKS AIRLESS 75 SPRAY GUN
11 / 16
TO REPLACE NEEDLE ASSEMBLY (10)
1. Shut off power supply to pump and release
pressure from gun. Remove gun from hose.
2. Remove screws and rear cap. (12)
3. Remove trigger and trigger stud (9)
4. Unscrew gland nut of item 10.
5. Pull needle assembly out from back of gun.
6. Reinsert needle assembly (of step 5) into
position through back of gun body assembly.
Tighten gland nut.
7. Reassemble items.
TO ADJUST PACKING GLAND
1. Shut off power supply to pump and release
pressure from gun. Remove gun from hose.
2. Use 7/16' open-end wrench to turn gland nut
clockwise to eliminate any leakage at gland.
3. If sluggish trigger operation is noted, turn
gland nut counterclockwise in 1/16 turn
increments until drag is eliminated.
4. If leakage cannot be stopped without
excessive drag on trigger, replace packing.
EN
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