California Air Tools CAT-33000, Owner'S Manual

MAINTENANCE

TROUBLESHOOTING

c) Lightly lube all moving parts with a non-petroleum based lubricant. 

Note: never use improper cleaning instruments as they may damage the part and 
adversely affect gun performance. Never immerse the gun in solvent. 

Problem: Gun is leaking from fluid nozzle. 

Causes: Fluid nozzle is loose, foreign particles or dried paint is keeping needle from 
seating properly. 

Remedy: Tighten nozzle of remove and clean nozzle. 

Problem: Gun is leaking from needle sealing area. 

Causes: Teflon packing is damaged of missing. 

Remedy: Replace Teflon packing 

Problem: Gun sprays ‘sickle shaped’ patterns to the left or right  )( 

Causes: Air holes clogged on air cap of air cap is damaged. 

Remedy: Clean air holes of replace air cap. 

Problem: Tear drop or oval shaped pattern appears 

Causes: Air cap clogged at fluid needle orifice.   

Remedy: Remove and clean air cap and fluid nozzle. 

Problem: Paint sputters from gun. 

Causes: Insufficient material in cup, material not filtered, fluid nozzle loose, needle Teflon 
damaged, needle and/or nozzle is dirty. 

Remedy: Refill cup. filer material, tighten loose parts, replace Teflon packing, clean 
needle and nozzle. 

Problem: Incorrect atomization of spray pattern. 

Causes: Inlet air pressure to low or material too thick; pressure too high or material too 
thin. 

Remedy: Adjust air pressure and/or product viscosity.