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14
Fluid not coming out of nozzle
• Check fluid supply level.
• Check to ensure that tubing is connected to
Liquid
port of the nozzle and the
Liquid
port of the valve.
• Check fluid supply pressure and ensure that it is
above 20 psi [1.4 bar].
• Check air supply pressure and ensure that it is
above 40 psi [3 bar] (for one nozzle). If you are firing
multiple nozzles at the same time the pressure
should be greater than 40 psi [3 bar], but most
likely not having to exceed 60 psi [4 bar].
• Check for fluid pressure at the nozzle by removing
the tube from the liquid port (relieve the pressure
supply before disconnecting, and aim the end of
the tube away from you, then turn fluid pressure
back on). If not:
• Ensure that the flow control valve is not all the
way closed (4230 series nozzle and valve stack).
• Check that the quick disconnect fitting is fully
inserted (cannot be removed by pulling on it).
• Check for clogged quick disconnect fitting.
• Check that set screw on the rear hex plug is close to
flush with the face of the plug. Use a 3/32” Allen
wrench to adjust if recessed too far.
Fluid sputtering
• Check fluid supply level.
• Check fluid supply pressure and ensure that it is
above 20 psi [1.4 bar].
• Check for debris within the valve body. This requires
disassembling the nozzle. Follow the Rebuild Kit
Instructions on page 16 using the existing parts
instead of the new parts when re-assembling.
Troubleshooting
Check fluid pressure is
above 20 psi [1.4 bar]
Check fluid pressure is
above 20 psi [1.4 bar]
Check air pressure is
above 40 psi [3 bar]
Summary of Contents for 4210 Series
Page 1: ...Low Volume Spray Nozzles Operation Manual...
Page 6: ...Identifying Symbols Caution ISO 7000 0434B...
Page 8: ......
Page 33: ...25 Notes...