3M Series 56ZZ - Manual (Page 21)

20
Spray Gun Care and Cleaning cont.
ATTENTION
Solvent left in the spray gun air passages could result
in a poor quality paint finish. Do not use any cleaning
method which may allow solvent into the spray gun air
passages. Do not expose air regulators and gauges to
solvent as damage may occur.
Cleaning Process
1. Relieve the pressure from the spray gun before
servicing.
2. Refer to your fluid source manual for removal and
cleaning.
3. To retain unused material or temporarily store mixed
material, see your Local, State, Federal and OSHA
guidelines, along with material manufacturer’s
recommendations for storage.
4. Flush the spray gun. To flush spray gun, run water or
compatible and compliant solvent into the spray gun
fluid passage while triggering the
spray gun.
5. Remove the retaining ring and air cap.
6. Unscrew the fluid needle tip with fingers.
7. Dip the end of a soft-bristle brush into a compatible
solvent. Do not continuously soak the brush’s bristles
with solvent, and do not use a wire brush.
8. Clean the front of the spray gun, using a soft-bristle
brush and solvent.
9. Scrub the retaining ring, air cap and fluid nozzle
with a soft-bristle brush. To clean out air cap holes,
use a small brush.
10. Clean the air cap and fluid nozzle after each use. Do not
use metal tools to clean the air cap holes as this may
scratch them; scratches can distort the spray pattern.
Do not soak the retaining ring in solvent for prolonged
periods of time.
11. Thread fluid needle tip on finger tight. Tighten the
nozzle securely to obtain a good seal.
12. Install the retaining ring and air cap.
13. Dampen a soft cloth with solvent and wring-out the
excess. Wipe off the outside of the spray gun.
3