3M Series 05, Owner'S Manual

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12

11.  Install the fluid nozzle with the 

wrench. Tighten the fluid nozzle 

securely to obtain a good seal. Install 
and tighten air cap.

12. 

 Install the fluid needle from the 

rear of the spray gun. Insert needle 
adjustment screw and then thread 
the needle adjustment screw to the 
desired depth.

Spray Gun Care and Cleaning cont.

10.  Scrub the retaining ring, air cap and 

fluid nozzle with a soft-bristle brush. 

To clean out air cap holes, use a 
small brush. Clean the air cap and 

fluid nozzle after each use. Do not 

soak the retaining ring in solvent for 
prolonged periods of time.

13.  Dampen a soft cloth with solvent and 

wring-out the excess. Point the spray 

gun down and wipe off the outside of 
the spray gun.

9.  With the spray gun pointed down, 

clean the front of the spray gun, 
using a soft-bristle brush and 
solvent.

  Clean the air line filters daily.

  Check for any fluid leakage from the 

spray gun and gravity cup.

  Flush the spray gun before changing 

colors and when done operating the 
spray gun.

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.

2.  Refer to your cup or fluid source 

manual for removal and cleaning.

3.  To retain unused material or 

temporarily store mixed material 

see your Local, State, Federal and 
OSHA guideline, along with material  
manufacturer’s recommendations for 
storage.

4.  Flush the spray gun. (To flush, run 

water or compatible and compliant 

solvent into the spray gun fluid 

passage while triggering the  

spray gun).

5.  Remove the air cap.

Spray Gun Care and Cleaning cont.

8.  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.

Wrench for 05-100 

spray gun

Wrench for 05-300 

spray gun

Fan 

Adjustment

Assembly

Fluid 

Nozzle

Packing

Nut

Gravity

Cup

Fan

Adjustment

Packing 

Nut

& Fluid

Nozzle

Valve

Stem

Gravity

Cup

6.  Unscrew the needle adjustment screw 

at the rear of the spray gun. Remove 

the needle adjustment spring. The 
needle should then be able to be 
removed from the rear of the spray gun.

7.  Remove the fluid nozzle with the   

wrench.