Mine does this too if I pull the needle Chuck back and forwards. Essentially I learned just not to do that. I haven’t found that I gain anything by pulling the needle over just pulling the trigger all the way back for flushing.
I did more damage through novice cleaning in the first 6 months than I have done in the time since
. It’s just something that happens sometimes.
I thought I was doing the right thing by tearing down the brush at the end of every session and spending 40 - 50 mins cleaning. I was wrong. Nowadays I empty the cup, wipe with some towel, pull the needle, wipe it with towel, flush with cleaner, fill the cup and use a soft paintbrush to scrub any stubborn paint, insert the needle, flush and keep flushing until it sprays clean into a paper towel... And I’m done. I’ll only go further if I have any problems.
Everybody eventually figures out what works for them. There’s a good video from Iwata on cleaning a brush. I’ll see if I can find it and post it here.
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