Airless spray guns will require periodic service, over time and after many trigger pulls the carbide ball at the end of the needle will wear against seat on the diffuser. This will cause paint to leak or spit from the tip when you let go of the trigger.
Replacing the needle and diffuser (gun kit) is a normal part of airless sprayer maintenance and should be done as required. Keep a spare kit in your tool box to reduce down time on the job.
Gun Repair Kit will suit the following model guns
Contractor II Models: 246020, 246221, 246222, 246224, 246225, 246434, 246538, 824987
FTx-II Gun Models: 246230, 246231, 246232, 246233, 246234, 246235, 246435, 246539, 246540
Atomex Part No. AX/G287-031
Replaces Graco Part No. 287031
Replaces Bedford Part No. 20-2701